{"product_id":"peptone-water-pw","title":"Peptone Water (PW) | AS-1323","description":"\u003cstyle\u003e\n  @import url('https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300\u0026family=DM+Mono:wght@400;500\u0026display=swap');\n  *{box-sizing:border-box;margin:0;padding:0}\n  :root{\n    --green:#1a4731;--green-mid:#2d6a4f;--green-light:#b8d8c8;--green-fade:#e8f4ef;\n    --gold:#b8860b;--gold-light:#fdf7e3;\n    --ink:#0f1f17;--ink-mid:#2d3e35;--muted:#5a7269;--faint:#f0f4f2;\n    --border:#d4e5dc;--white:#ffffff;\n    --ff:'DM Sans',sans-serif;--fm:'DM Mono',monospace;\n    --r:10px;--r-lg:16px;\n  }\n  .pw-wrap{font-family:var(--ff);color:var(--ink);line-height:1.6;max-width:1120px;margin:0 auto;padding:0 4px;font-size:14px}\n  .pw-wrap *{box-sizing:border-box}\n\n  \/* HERO — light gradient *\/\n  .pw-hero{background:linear-gradient(135deg,#eaf4ef 0%,#d8eddf 60%,#c8e5d3 100%);border:1px solid var(--border);border-radius:var(--r-lg);padding:36px 40px 32px;margin-bottom:28px;position:relative;overflow:hidden}\n  .pw-hero::before{content:'';position:absolute;top:-60px;right:-60px;width:260px;height:260px;border-radius:50%;background:rgba(26,71,49,.04)}\n  .pw-hero::after{content:'';position:absolute;bottom:-40px;right:90px;width:140px;height:140px;border-radius:50%;background:rgba(184,216,200,.12)}\n  .pw-hgrid{display:grid;grid-template-columns:1fr 285px;gap:32px;align-items:start}\n  .pw-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(26,71,49,.1);border:1px solid rgba(45,106,79,.3);color:var(--green);font-size:11px;font-weight:500;letter-spacing:.07em;text-transform:uppercase;padding:5px 12px;border-radius:20px;margin-bottom:16px}\n  .pw-hero h1{color:#0f2d1f;font-size:28px;font-weight:500;line-height:1.2;margin-bottom:6px}\n  .pw-sku{color:var(--green-mid);font-family:var(--fm);font-size:13px;margin-bottom:16px}\n  .pw-hdesc{color:var(--ink-mid);font-size:14px;line-height:1.7;max-width:580px;margin-bottom:22px;font-weight:300}\n  .pw-pills{display:flex;gap:8px;flex-wrap:wrap}\n  .pw-pill{display:inline-block;padding:5px 14px;border-radius:20px;font-size:12px;font-weight:500}\n  .pw-pill-g{background:rgba(26,71,49,.1);color:var(--green);border:1px solid rgba(45,106,79,.25)}\n  .pw-pill-gold{background:#b8860b;color:#fff}\n  .pw-pill-ok{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}\n  .pw-pill-iso{background:#e0f2fe;color:#075985;border:1px solid #bae6fd}\n\n  \/* SNAP CARD *\/\n  .pw-snap{background:rgba(255,255,255,.8);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px 20px;box-shadow:0 2px 8px rgba(26,71,49,.08)}\n  .pw-snap h3{color:var(--green-mid);font-size:13px;font-weight:500;margin-bottom:14px;text-transform:uppercase;letter-spacing:.06em}\n  .pw-sr{display:flex;justify-content:space-between;align-items:center;padding:7px 0;border-bottom:1px solid var(--border);font-size:13px}\n  .pw-sr:last-child{border-bottom:none}\n  .pw-sl{color:var(--muted);font-weight:400}\n  .pw-sv{color:var(--ink);font-weight:500;font-family:var(--fm);font-size:12px}\n  .pw-sv.ok{color:#16a34a}\n  .pw-sv.hi{color:var(--green-mid)}\n\n  \/* TABS *\/\n  .pw-tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:28px}\n  .pw-tb{background:none;border:none;padding:10px 22px;font-family:var(--ff);font-size:13.5px;font-weight:500;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;margin-bottom:-2px;transition:color .15s,border-color .15s}\n  .pw-tb:hover{color:var(--green)}\n  .pw-tb.on{color:var(--green);border-bottom-color:var(--green)}\n  .pw-tp{display:none}\n  .pw-tp.on{display:block}\n\n  \/* SECTION HEAD *\/\n  .pw-sh{font-size:16px;font-weight:500;color:var(--green);margin:0 0 14px 0;padding-bottom:8px;border-bottom:1.5px solid var(--border);display:flex;align-items:center;gap:8px}\n  .pw-sh::before{content:'';display:inline-block;width:4px;height:18px;background:var(--green-mid);border-radius:2px}\n\n  \/* CARDS *\/\n  .pw-card{background:var(--white);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px 20px}\n  .pw-card-f{background:var(--faint);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px}\n  .pw-card-gold{background:var(--gold-light);border:1px solid #e8d49a;border-radius:var(--r-lg);padding:20px}\n  .pw-card-iso{background:#f0f9ff;border:1px solid #bae6fd;border-radius:var(--r-lg);padding:20px}\n\n  \/* GRID *\/\n  .pw-2col{display:grid;grid-template-columns:1fr 1fr;gap:20px}\n  .pw-3col{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}\n  .pw-ma{display:grid;grid-template-columns:1fr 300px;gap:28px;align-items:start}\n\n  \/* TABLE *\/\n  .pw-t{width:100%;border-collapse:collapse;font-size:13px}\n  .pw-t th{background:var(--faint);color:var(--ink-mid);font-weight:500;padding:10px 12px;text-align:left;border-bottom:1.5px solid var(--border)}\n  .pw-t td{padding:9px 12px;border-bottom:1px solid var(--border);vertical-align:top;color:var(--ink-mid)}\n  .pw-t tr:last-child td{border-bottom:none}\n  .pw-t tr:hover td{background:#f7faf8}\n  .pw-t td:first-child{font-weight:500;color:var(--ink)}\n  .pw-t td code{background:var(--faint);padding:1px 6px;border-radius:4px;font-family:var(--fm);font-size:12px}\n  .pw-t tr.hl td{background:#f0f9f4}\n\n  \/* KV *\/\n  .pw-kv{display:grid;gap:2px}\n  .pw-kvr{display:grid;grid-template-columns:170px 1fr;gap:8px;padding:7px 0;border-bottom:1px solid var(--border);font-size:13px}\n  .pw-kvr:last-child{border-bottom:none}\n  .pw-kk{color:var(--muted)}\n  .pw-kv2{color:var(--ink);font-weight:500}\n\n  \/* STEPS *\/\n  .pw-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0}\n  .pw-step{padding:16px 10px;text-align:center;position:relative}\n  .pw-sn{width:32px;height:32px;border-radius:50%;background:var(--green-mid);color:#fff;font-size:13px;font-weight:500;display:flex;align-items:center;justify-content:center;margin:0 auto 10px}\n  .pw-st{font-size:12.5px;font-weight:500;color:var(--green);margin-bottom:4px}\n  .pw-sb{font-size:12px;color:var(--muted);line-height:1.5}\n  .pw-sa{position:absolute;right:-2px;top:46%;color:var(--border);font-size:20px;font-weight:300}\n\n  \/* VARIANT CARDS *\/\n  .pw-var{border-left:3px solid var(--green-mid);background:var(--green-fade);border-radius:0 var(--r) var(--r) 0;padding:14px 16px;margin-bottom:10px}\n  .pw-var-title{font-size:13px;font-weight:500;color:var(--green);margin-bottom:4px}\n  .pw-var-body{font-size:13px;color:var(--ink-mid);line-height:1.6}\n\n  \/* PROS\/CONS *\/\n  .pw-pc{display:grid;grid-template-columns:1fr 1fr;gap:16px}\n  .pw-pro li,.pw-con li{list-style:none;padding:5px 0;font-size:13px;border-bottom:1px solid var(--border);color:var(--ink-mid)}\n  .pw-pro li:last-child,.pw-con li:last-child{border-bottom:none}\n  .pw-pro li::before{content:'+ ';color:#16a34a;font-weight:700}\n  .pw-con li::before{content:'− ';color:#dc2626;font-weight:700}\n\n  \/* INFO *\/\n  .pw-info{border-left:3px solid var(--green-mid);background:var(--green-fade);border-radius:0 var(--r) var(--r) 0;padding:14px 16px;font-size:13.5px;color:var(--ink-mid);line-height:1.65}\n\n  \/* RELATED *\/\n  .pw-rl{display:flex;align-items:center;justify-content:space-between;padding:9px 12px;border:1px solid var(--border);border-radius:var(--r);font-size:13px;color:var(--green-mid);text-decoration:none;transition:background .1s;margin-bottom:8px}\n  .pw-rl:hover{background:var(--green-fade)}\n  .pw-rl span{color:var(--muted);font-size:12px}\n\n  \/* BRAND BADGES *\/\n  .pw-bb{display:inline-block;font-size:11px;font-weight:500;padding:2px 8px;border-radius:10px}\n  .pw-ox{background:#fff3cd;color:#856404}\n  .pw-bd{background:#cfe2ff;color:#084298}\n  .pw-mk{background:#f8d7da;color:#842029}\n\n  \/* WARN *\/\n  .pw-warn{background:#fffbeb;border:1px solid #fde68a;border-radius:var(--r);padding:14px 16px;font-size:13px;color:#92400e}\n  .pw-disc{margin-top:20px;padding:16px 18px;background:var(--faint);border-radius:var(--r);border:1px solid var(--border);font-size:12px;font-style:italic;color:var(--muted);line-height:1.7}\n\n  @media(max-width:860px){\n    .pw-hgrid,.pw-ma,.pw-2col,.pw-3col,.pw-pc{grid-template-columns:1fr}\n    .pw-steps{grid-template-columns:1fr 1fr}\n    .pw-sa{display:none}\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"pw-wrap\"\u003e\n\u003c!-- HERO --\u003e\n\u003cdiv class=\"pw-hero\"\u003e\n\u003cdiv class=\"pw-hgrid\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"pw-badge\"\u003eAuSaMicS Life Science  ·  Universal Diluent \u0026amp; Basal Medium\u003c\/div\u003e\n\u003ch1\u003ePeptone Water\u003c\/h1\u003e\n\u003cdiv class=\"pw-sku\"\u003ePW  ·  AS-1323\u003c\/div\u003e\n\u003cp class=\"pw-hdesc\"\u003eThe simplest and most universal non-selective liquid medium in microbiology. An ISO-accepted diluent and basal medium for sample preparation, enrichment, indole testing, carbohydrate fermentation, and Salmonella pre-enrichment — trusted since the 19th century and still the backbone of food and clinical microbiology workflows.\u003c\/p\u003e\n\u003cdiv class=\"pw-pills\"\u003e\n\u003cspan class=\"pw-pill pw-pill-g\"\u003eNon-selective\u003c\/span\u003e \u003cspan class=\"pw-pill pw-pill-iso\"\u003eISO 6887-1\u003c\/span\u003e \u003cspan class=\"pw-pill pw-pill-iso\"\u003eISO 6579-1\u003c\/span\u003e \u003cspan class=\"pw-pill pw-pill-gold\"\u003eAustralian Made\u003c\/span\u003e \u003cspan class=\"pw-pill pw-pill-ok\"\u003eIn Stock\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-snap\"\u003e\n\u003ch3\u003eProduct Snapshot\u003c\/h3\u003e\n\u003cdiv class=\"pw-sr\"\u003e\n\u003cspan class=\"pw-sl\"\u003eCatalogue No.\u003c\/span\u003e\u003cspan class=\"pw-sv\"\u003eAS-1323\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-sr\"\u003e\n\u003cspan class=\"pw-sl\"\u003eFormat\u003c\/span\u003e\u003cspan class=\"pw-sv\"\u003eDehydrated powder\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-sr\"\u003e\n\u003cspan class=\"pw-sl\"\u003eStandard version\u003c\/span\u003e\u003cspan class=\"pw-sv\"\u003e0.1 % (1.0 g\/L peptone)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-sr\"\u003e\n\u003cspan class=\"pw-sl\"\u003eEnriched version\u003c\/span\u003e\u003cspan class=\"pw-sv\"\u003e1.0 % (10.0 g\/L peptone)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-sr\"\u003e\n\u003cspan class=\"pw-sl\"\u003eFinal pH (25 °C)\u003c\/span\u003e\u003cspan class=\"pw-sv ok\"\u003e7.2 ± 0.2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-sr\"\u003e\n\u003cspan class=\"pw-sl\"\u003eSterilisation\u003c\/span\u003e\u003cspan class=\"pw-sv\"\u003e121 °C \/ 15 min\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-sr\"\u003e\n\u003cspan class=\"pw-sl\"\u003eSelectivity\u003c\/span\u003e\u003cspan class=\"pw-sv\"\u003eNone\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-sr\"\u003e\n\u003cspan class=\"pw-sl\"\u003eISO reference\u003c\/span\u003e\u003cspan class=\"pw-sv hi\"\u003eISO 6887-1 · ISO 6579-1\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-sr\"\u003e\n\u003cspan class=\"pw-sl\"\u003eDocumentation\u003c\/span\u003e\u003cspan class=\"pw-sv ok\"\u003eCOA \/ TDS \/ SDS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- TABS --\u003e\n\u003cdiv class=\"pw-tabs\"\u003e\n\u003cbutton class=\"pw-tb on\"\u003eProduct Description\u003c\/button\u003e \u003cbutton class=\"pw-tb\"\u003eTechnical Data\u003c\/button\u003e \u003cbutton class=\"pw-tb\"\u003eQuality Control\u003c\/button\u003e \u003cbutton class=\"pw-tb\"\u003eSafety (SDS)\u003c\/button\u003e\n\u003c\/div\u003e\n\u003c!-- TAB 1: DESCRIPTION --\u003e\n\u003cdiv class=\"pw-tp on\" id=\"pw-desc\"\u003e\n\u003cdiv class=\"pw-ma\"\u003e\n\u003cdiv\u003e\n\u003c!-- OVERVIEW --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eOverview\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 16px;\" class=\"pw-info\"\u003ePeptone Water is the foundational diluent and basal medium of microbiology. Its simplicity is its strength: a single peptone source in water provides minimal but sufficient nutrition to protect stressed and injured microorganisms during sample dilution, without introducing selective pressure or nutrient carry-over that could interfere with downstream tests. It is the ISO-accepted diluent (ISO 6887-1) and serves as the base for indole detection (ISO 6579-1), carbohydrate fermentation series, Salmonella pre-enrichment in low-moisture food methods, and motility studies when agar is added at 0.2–0.4 %.\u003c\/div\u003e\n\u003cdiv class=\"pw-3col\"\u003e\n\u003cdiv class=\"pw-card-f\"\u003e\n\u003cdiv style=\"font-size: 12px; font-weight: 500; color: var(--green); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px;\"\u003ePrimary Applications\u003c\/div\u003e\n\u003cul style=\"padding-left: 16px; color: var(--ink-mid); font-size: 13px; line-height: 1.7;\"\u003e\n\u003cli\u003eSample dilution \u0026amp; diluent (ISO 6887-1)\u003c\/li\u003e\n\u003cli\u003eIndole test broth\u003c\/li\u003e\n\u003cli\u003eCarbohydrate fermentation base\u003c\/li\u003e\n\u003cli\u003eSalmonella pre-enrichment\u003c\/li\u003e\n\u003cli\u003eMotility studies (+ 0.2–0.4 % agar)\u003c\/li\u003e\n\u003cli\u003eTransport medium for enteric specimens\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-card-f\"\u003e\n\u003cdiv style=\"font-size: 12px; font-weight: 500; color: var(--green); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px;\"\u003eIndustries \u0026amp; Settings\u003c\/div\u003e\n\u003cul style=\"padding-left: 16px; color: var(--ink-mid); font-size: 13px; line-height: 1.7;\"\u003e\n\u003cli\u003eFood \u0026amp; beverage microbiology\u003c\/li\u003e\n\u003cli\u003eClinical \u0026amp; diagnostic labs\u003c\/li\u003e\n\u003cli\u003eEnvironmental monitoring\u003c\/li\u003e\n\u003cli\u003ePharmaceutical QC\u003c\/li\u003e\n\u003cli\u003eWater testing\u003c\/li\u003e\n\u003cli\u003eResearch \u0026amp; education\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-card-f\"\u003e\n\u003cdiv style=\"font-size: 12px; font-weight: 500; color: var(--green); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px;\"\u003eKey Strengths\u003c\/div\u003e\n\u003cul style=\"padding-left: 16px; color: var(--ink-mid); font-size: 13px; line-height: 1.7;\"\u003e\n\u003cli\u003eMinimal nutritional carry-over\u003c\/li\u003e\n\u003cli\u003eOsmotic protection for stressed cells\u003c\/li\u003e\n\u003cli\u003eNo NaCl in basic version\u003c\/li\u003e\n\u003cli\u003eMultiple official variants\u003c\/li\u003e\n\u003cli\u003eISO \/ AOAC referenced\u003c\/li\u003e\n\u003cli\u003eFull AuSaMicS documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- INGREDIENTS TABLE --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eComposition \u0026amp; Ingredient Function\u003c\/h2\u003e\n\u003cdiv style=\"padding: 0; overflow: hidden;\" class=\"pw-card\"\u003e\n\u003ctable class=\"pw-t\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eIngredient\u003c\/th\u003e\n\u003cth\u003eStandard (0.1 %)\u003c\/th\u003e\n\u003cth\u003eEnriched (1.0 %)\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003cth\u003eMechanism\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeptone\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003e1.0 g\/L\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003e10.0 g\/L\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003eNitrogen source, osmotic protectant\u003c\/td\u003e\n\u003ctd\u003ePancreatic\/meat digest; provides amino acids and short peptides that buffer osmotic stress on injured cells without contributing fermentable carbohydrates\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePurified Water\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003eq.s. 1 L\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003eq.s. 1 L\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003eAqueous solvent\u003c\/td\u003e\n\u003ctd\u003eType 2 or above; inert vehicle for sample dilution and organism suspension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNaCl (optional)\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e\u003ccode\u003e8.5 g\/L\u003c\/code\u003e\u003c\/td\u003e\n\u003ctd\u003eOsmotic stabiliser (Peptone Salt Water variant)\u003c\/td\u003e\n\u003ctd\u003eRestores physiological ionic strength when isotonicity is required (e.g. halosensitive organisms); used in Peptone Salt Solution (PSS) variant per some national standards\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 10px; font-size: 12px; color: var(--muted); padding-left: 4px;\"\u003eFinal pH 7.2 ± 0.2 at 25 °C  ·  No buffer added — intentional, to avoid interfering with downstream biochemical tests.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- VARIANTS --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eOfficial Variants \u0026amp; When to Use Each\u003c\/h2\u003e\n\u003cdiv class=\"pw-var\"\u003e\n\u003cdiv class=\"pw-var-title\"\u003e0.1 % Peptone Water (Standard) — AS-1323\u003c\/div\u003e\n\u003cdiv class=\"pw-var-body\"\u003eISO 6887-1 accepted alternative diluent. Minimal nutrient carry-over. Preferred for high-fat, high-salt, high-sugar foods (chocolate, spices, dried milk, cured meats) where buffered peptone water is not required. Protects cells from osmotic shock during dilution.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-var\"\u003e\n\u003cdiv class=\"pw-var-title\"\u003e1.0 % Peptone Water (Enriched)\u003c\/div\u003e\n\u003cdiv class=\"pw-var-body\"\u003eHigher peptone concentration for use as indole test broth (tryptophan source for tryptophanase activity) and as basal medium for carbohydrate fermentation series (add sugar + pH indicator). Also used as pre-enrichment for Salmonella in some low-moisture food methods.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-var\"\u003e\n\u003cdiv class=\"pw-var-title\"\u003ePeptone Salt Water \/ Peptone Salt Solution (PSS)\u003c\/div\u003e\n\u003cdiv class=\"pw-var-body\"\u003e0.1–1.0 % peptone + 0.85 % NaCl. Used in some national standards where physiological isotonicity is required. Provides osmotic conditions equivalent to physiological saline while retaining peptone's protective properties.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left-color: #0e7490; background: #f0fdfa;\" class=\"pw-var\"\u003e\n\u003cdiv style=\"color: #0e7490;\" class=\"pw-var-title\"\u003eSemi-solid variant (Motility Medium)\u003c\/div\u003e\n\u003cdiv class=\"pw-var-body\"\u003eAdd 0.2–0.4 % agar to 1.0 % Peptone Water before sterilisation. Used for motility testing by stab inoculation and flagella staining medium.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- PREPARATION --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003ePreparation Protocol\u003c\/h2\u003e\n\u003cdiv style=\"padding: 0; overflow: hidden; margin-bottom: 14px;\" class=\"pw-card\"\u003e\n\u003cdiv class=\"pw-steps\"\u003e\n\u003cdiv class=\"pw-step\"\u003e\n\u003cdiv class=\"pw-sn\"\u003e1\u003c\/div\u003e\n\u003cdiv class=\"pw-st\"\u003eWeigh\u003c\/div\u003e\n\u003cdiv class=\"pw-sb\"\u003e1.0 g (0.1 %) or 10.0 g (1 %) peptone per litre\u003c\/div\u003e\n\u003cspan class=\"pw-sa\"\u003e›\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-step\"\u003e\n\u003cdiv class=\"pw-sn\"\u003e2\u003c\/div\u003e\n\u003cdiv class=\"pw-st\"\u003eDissolve\u003c\/div\u003e\n\u003cdiv class=\"pw-sb\"\u003eAdd to purified water; mix at room temperature until clear\u003c\/div\u003e\n\u003cspan class=\"pw-sa\"\u003e›\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-step\"\u003e\n\u003cdiv class=\"pw-sn\"\u003e3\u003c\/div\u003e\n\u003cdiv class=\"pw-st\"\u003eDispense\u003c\/div\u003e\n\u003cdiv class=\"pw-sb\"\u003e9 mL, 90 mL, or 225 mL per tube\/bottle as required\u003c\/div\u003e\n\u003cspan class=\"pw-sa\"\u003e›\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-step\"\u003e\n\u003cdiv class=\"pw-sn\"\u003e4\u003c\/div\u003e\n\u003cdiv class=\"pw-st\"\u003eAutoclave\u003c\/div\u003e\n\u003cdiv class=\"pw-sb\"\u003e121 °C \/ 15 min. Do not overheat — darkening indicates caramelisation\u003c\/div\u003e\n\u003cspan class=\"pw-sa\"\u003e›\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-step\"\u003e\n\u003cdiv class=\"pw-sn\"\u003e5\u003c\/div\u003e\n\u003cdiv class=\"pw-st\"\u003eVerify\u003c\/div\u003e\n\u003cdiv class=\"pw-sb\"\u003epH 7.2 ± 0.2 at 25 °C. Medium should be pale straw to colourless\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"gap: 14px;\" class=\"pw-2col\"\u003e\n\u003cdiv class=\"pw-kv\"\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eStandard volumes\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003e9 mL (1:10 dilution), 90 mL (1:100), 225 mL (1:10 stomacher)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eAppearance\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eColourless to pale straw liquid\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eOverheat warning\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eBrowning\/darkening = caramelisation; discard and remake\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kv\"\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eStorage (prepared)\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eRT or 2–8 °C, use within 6 months\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eIncubation (indole)\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003e37 °C \/ 24–48 h; add Kovacs' reagent\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eIncubation (dilution use)\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eNo incubation — use immediately as diluent\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- COMPARATIVE TABLE --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eComparative Diluents \u0026amp; Liquid Media\u003c\/h2\u003e\n\u003cdiv style=\"padding: 0; overflow: hidden;\" class=\"pw-card\"\u003e\n\u003ctable class=\"pw-t\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMedium\u003c\/th\u003e\n\u003cth\u003eKey Components\u003c\/th\u003e\n\u003cth\u003eISO Reference\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003cth\u003eLimitation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr class=\"hl\"\u003e\n\u003ctd\u003e\u003cstrong\u003ePeptone Water (AS-1323)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePeptone only\u003c\/td\u003e\n\u003ctd\u003eISO 6887-1 (alt.)\u003c\/td\u003e\n\u003ctd\u003eHigh-fat\/salt\/sugar foods; indole; fermentation base\u003c\/td\u003e\n\u003ctd\u003eNot buffered; max recovery not guaranteed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca style=\"color: var(--green-mid);\" href=\"https:\/\/ausamics.com.au\/products\/buffered-peptone-water\"\u003eBuffered Peptone Water (BPW)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ePeptone + phosphate buffer + NaCl\u003c\/td\u003e\n\u003ctd\u003eISO 6887-1 (primary); ISO 6579-1\u003c\/td\u003e\n\u003ctd\u003eMaximum recovery of stressed cells; Salmonella pre-enrichment\u003c\/td\u003e\n\u003ctd\u003ePhosphate buffer may interfere with some tests\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeptone Salt Water (PSS)\u003c\/td\u003e\n\u003ctd\u003ePeptone + 0.85 % NaCl\u003c\/td\u003e\n\u003ctd\u003eSome national standards\u003c\/td\u003e\n\u003ctd\u003eIsotonic diluent for halosensitive organisms\u003c\/td\u003e\n\u003ctd\u003eSalt may inhibit halosensitive species at high conc.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Recovery Diluent (MRD)\u003c\/td\u003e\n\u003ctd\u003ePeptone + NaCl (low conc.)\u003c\/td\u003e\n\u003ctd\u003eISO 6887-1 (primary)\u003c\/td\u003e\n\u003ctd\u003eOptimal recovery of injured cells\u003c\/td\u003e\n\u003ctd\u003eMore expensive; not needed for robust populations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaline (0.85 % NaCl)\u003c\/td\u003e\n\u003ctd\u003eNaCl only\u003c\/td\u003e\n\u003ctd\u003eInformal \/ historical\u003c\/td\u003e\n\u003ctd\u003eSimple dilution of robust organisms\u003c\/td\u003e\n\u003ctd\u003eNo osmotic protection; not ISO-recommended for food\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca style=\"color: var(--green-mid);\" href=\"https:\/\/ausamics.com.au\/products\/rappaport-vassiliadis\"\u003eRappaport-Vassiliadis (AS-1338)\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003ePeptone + malachite green + MgCl₂\u003c\/td\u003e\n\u003ctd\u003eISO 6579-1 (secondary enrichment)\u003c\/td\u003e\n\u003ctd\u003eSalmonella selective enrichment after BPW pre-enrichment\u003c\/td\u003e\n\u003ctd\u003eSelective — not a general diluent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- PROS \/ CONS --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eAdvantages \u0026amp; Limitations\u003c\/h2\u003e\n\u003cdiv class=\"pw-pc\"\u003e\n\u003cdiv class=\"pw-card\"\u003e\n\u003cdiv style=\"font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: .06em; color: #16a34a; margin-bottom: 12px;\"\u003eAdvantages\u003c\/div\u003e\n\u003cul class=\"pw-pro\"\u003e\n\u003cli\u003eSimplest possible formulation — minimal interference with downstream tests\u003c\/li\u003e\n\u003cli\u003eNo NaCl in basic version — suitable for halosensitive organisms\u003c\/li\u003e\n\u003cli\u003eTryptophan content supports indole test without modification\u003c\/li\u003e\n\u003cli\u003eISO 6887-1 and ISO 6579-1 referenced\u003c\/li\u003e\n\u003cli\u003eMultiple validated volumes: 9 mL, 90 mL, 225 mL\u003c\/li\u003e\n\u003cli\u003eVersatile: diluent, broth, base for fermentation series, motility medium\u003c\/li\u003e\n\u003cli\u003eLow cost; simple preparation\u003c\/li\u003e\n\u003cli\u003eFull AuSaMicS documentation (COA, TDS, SDS)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-card\"\u003e\n\u003cdiv style=\"font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: .06em; color: #dc2626; margin-bottom: 12px;\"\u003eLimitations\u003c\/div\u003e\n\u003cul class=\"pw-con\"\u003e\n\u003cli\u003eNot buffered — pH may drift during extended use\u003c\/li\u003e\n\u003cli\u003eNot the primary diluent for maximum recovery (use BPW or MRD)\u003c\/li\u003e\n\u003cli\u003eNot selective or differential — colonies require further identification\u003c\/li\u003e\n\u003cli\u003eCaramelisation risk if overheated — strict autoclaving required\u003c\/li\u003e\n\u003cli\u003ePeptone source variability can affect indole test sensitivity\u003c\/li\u003e\n\u003cli\u003eNot suitable as sole pre-enrichment medium for ISO 6579-1 Salmonella\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- CROSS-REFERENCE --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eCross-Reference \/ Equivalent Products\u003c\/h2\u003e\n\u003cdiv style=\"padding: 0; overflow: hidden;\" class=\"pw-card\"\u003e\n\u003ctable class=\"pw-t\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSupplier\u003c\/th\u003e\n\u003cth\u003eProduct Name\u003c\/th\u003e\n\u003cth\u003eCatalogue No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"pw-bb pw-ox\"\u003eOxoid\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003ePeptone Water\u003c\/td\u003e\n\u003ctd\u003eCM0009\u003c\/td\u003e\n\u003ctd\u003eDirect equivalent; 1.0 % standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"pw-bb pw-bd\"\u003eBD Difco\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003ePeptone Water\u003c\/td\u003e\n\u003ctd\u003e211910\u003c\/td\u003e\n\u003ctd\u003eDirect equivalent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan class=\"pw-bb pw-mk\"\u003eMerck\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003ePeptone Water\u003c\/td\u003e\n\u003ctd\u003e107228\u003c\/td\u003e\n\u003ctd\u003eEquivalent composition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- RELATED PRODUCTS --\u003e\n\u003cdiv style=\"margin-bottom: 28px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eRelated AuSaMicS Products\u003c\/h2\u003e\n\u003cdiv style=\"gap: 10px;\" class=\"pw-2col\"\u003e\n\u003cdiv\u003e\n\u003ca class=\"pw-rl\" href=\"https:\/\/ausamics.com.au\/products\/rappaport-vassiliadis-broth\"\u003eRappaport-Vassiliadis Broth RVS (AS-1338) \u003cspan\u003eBroths →\u003c\/span\u003e\u003c\/a\u003e \u003ca class=\"pw-rl\" href=\"https:\/\/ausamics.com.au\/products\/fluid-thioglycollate-medium\"\u003eFluid Thioglycollate Medium (AS-1233) \u003cspan\u003eBroths →\u003c\/span\u003e\u003c\/a\u003e \u003ca class=\"pw-rl\" href=\"https:\/\/ausamics.com.au\/products\/phenol-red-broth-base\"\u003ePhenol Red Broth Base (AS-1326) \u003cspan\u003eBroths →\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ca class=\"pw-rl\" href=\"https:\/\/ausamics.com.au\/products\/tge-agar\"\u003eTGE Agar (AS-1360) \u003cspan\u003eCulture media →\u003c\/span\u003e\u003c\/a\u003e \u003ca class=\"pw-rl\" href=\"https:\/\/ausamics.com.au\/products\/nutrient-agar-mug\"\u003eNutrient Agar with MUG (AS-1308) \u003cspan\u003eCulture media →\u003c\/span\u003e\u003c\/a\u003e \u003ca class=\"pw-rl\" href=\"https:\/\/ausamics.com.au\/products\/liver-infusion-broth\"\u003eLiver Infusion Broth (AS-1276) \u003cspan\u003eBroths →\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ASIDE --\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"margin-bottom: 18px;\" class=\"pw-card\"\u003e\n\u003ch3 style=\"font-size: 14px;\" class=\"pw-sh\"\u003eProduct Snapshot\u003c\/h3\u003e\n\u003cdiv class=\"pw-kv\"\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eCatalogue No.\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eAS-1323\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eFormat\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eDehydrated powder\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003e0.1 % (standard)\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003e1.0 g\/L peptone\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003e1.0 % (enriched)\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003e10.0 g\/L peptone\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003epH (25 °C)\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003e7.2 ± 0.2\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003ePack sizes\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003e100 g · 500 g · 2 kg\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 18px;\" class=\"pw-card-iso\"\u003e\n\u003cdiv style=\"font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: .06em; color: #075985; margin-bottom: 10px;\"\u003eISO \u0026amp; Method References\u003c\/div\u003e\n\u003cul style=\"padding-left: 16px; font-size: 13px; color: #0c4a6e; line-height: 1.9;\"\u003e\n\u003cli\u003eISO 6887-1 — Sample preparation \u0026amp; dilution\u003c\/li\u003e\n\u003cli\u003eISO 6579-1 — Salmonella detection\u003c\/li\u003e\n\u003cli\u003eISO 11133:2014 — Culture media performance\u003c\/li\u003e\n\u003cli\u003eAOAC Official Methods\u003c\/li\u003e\n\u003cli\u003eClassic since 19th century (Dunham, 1887)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 18px;\" class=\"pw-card\"\u003e\n\u003ch3 style=\"font-size: 14px;\" class=\"pw-sh\"\u003eStorage\u003c\/h3\u003e\n\u003cdiv class=\"pw-kv\"\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003ePowder\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003e15–30 °C, dry, sealed\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003ePrepared\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eRT or 2–8 °C, up to 6 months\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eAppearance\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eColourless to pale straw\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eDiscard if\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eTurbid, brown, or pH out of range\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 18px;\" class=\"pw-card-gold\"\u003e\n\u003cdiv style=\"font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: .06em; color: var(--gold); margin-bottom: 10px;\"\u003eAuSaMicS Advantage\u003c\/div\u003e\n\u003cul style=\"padding-left: 16px; font-size: 13px; color: var(--ink-mid); line-height: 1.8;\"\u003e\n\u003cli\u003eManufactured in Melbourne, VIC\u003c\/li\u003e\n\u003cli\u003eSame-week dispatch\u003c\/li\u003e\n\u003cli\u003eFull GHS-compliant docs\u003c\/li\u003e\n\u003cli\u003eDirect technical support\u003c\/li\u003e\n\u003cli\u003eABN: 56 676 640 467\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 18px;\" class=\"pw-warn\"\u003e\n\u003cstrong\u003eFor laboratory use only.\u003c\/strong\u003e Not for human, animal, or food consumption. Follow standard biosafety precautions.\u003c\/div\u003e\n\u003cdiv class=\"pw-card-f\"\u003e\n\u003cdiv style=\"font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 10px;\"\u003eContact \u0026amp; Support\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: var(--ink-mid); line-height: 1.8;\"\u003e\n\u003cdiv\u003esupport@ausamics.com.au\u003c\/div\u003e\n\u003cdiv\u003e+61 412 520 598\u003c\/div\u003e\n\u003cdiv\u003e\u003ca style=\"color: var(--green-mid);\" href=\"https:\/\/ausamics.com.au\"\u003ewww.ausamics.com.au\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv style=\"margin-top: 8px; color: var(--muted); font-size: 12px;\"\u003e31 Longview CT, Thomastown VIC 3074\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- TAB 2: TDS --\u003e\n\u003cdiv class=\"pw-tp\" id=\"pw-tds\"\u003e\n\u003cdiv class=\"pw-ma\"\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eMode of Action\u003c\/h2\u003e\n\u003cdiv class=\"pw-info\"\u003ePeptone Water works by providing the minimum nutritional support necessary to prevent osmotic lysis or death of microorganisms during transfer, dilution, and transport, without introducing nutrients that could bias downstream quantitative results. The peptone hydrolysate supplies free amino acids and short oligopeptides that act as osmotic buffers, stabilising cell membranes of stressed and injured cells. Critically, the absence of fermentable carbohydrates prevents acid accumulation during holding periods, and the absence of selective agents or dyes ensures no organism group is suppressed. When used as a basal medium for the indole test, the tryptophan content of peptone is metabolised by tryptophanase-positive organisms (e.g. \u003cem\u003eE. coli\u003c\/em\u003e) to produce indole, detected by Kovacs' reagent. For carbohydrate fermentation tests, a specific sugar plus a pH indicator (e.g. phenol red) is added to 1 % Peptone Water to provide both the nitrogen base and the indicator system.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003ePhysical \u0026amp; Chemical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"padding: 0; overflow: hidden;\" class=\"pw-card\"\u003e\n\u003ctable class=\"pw-t\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eMethod\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance (powder)\u003c\/td\u003e\n\u003ctd\u003eCream to light tan, free-flowing\u003c\/td\u003e\n\u003ctd\u003eVisual inspection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance (0.1 % prepared)\u003c\/td\u003e\n\u003ctd\u003eColourless to very pale straw liquid\u003c\/td\u003e\n\u003ctd\u003eVisual inspection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance (1.0 % prepared)\u003c\/td\u003e\n\u003ctd\u003ePale straw to light yellow liquid\u003c\/td\u003e\n\u003ctd\u003eVisual inspection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH (final, 25 °C)\u003c\/td\u003e\n\u003ctd\u003e7.0 – 7.4\u003c\/td\u003e\n\u003ctd\u003eCalibrated pH meter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClarity\u003c\/td\u003e\n\u003ctd\u003eClear to slightly opalescent\u003c\/td\u003e\n\u003ctd\u003eVisual inspection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMoisture content\u003c\/td\u003e\n\u003ctd\u003e≤ 8.0 %\u003c\/td\u003e\n\u003ctd\u003eLoss on drying, 105 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNitrogen content (peptone)\u003c\/td\u003e\n\u003ctd\u003eAs per lot-specific COA\u003c\/td\u003e\n\u003ctd\u003eKjeldahl \/ elemental analysis\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSterility (prepared)\u003c\/td\u003e\n\u003ctd\u003eNo growth after 14 d at 37 °C\u003c\/td\u003e\n\u003ctd\u003eIncubation test\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eUse as Indole Test Medium — Protocol\u003c\/h2\u003e\n\u003cdiv style=\"padding: 0; overflow: hidden; margin-bottom: 12px;\" class=\"pw-card\"\u003e\n\u003ctable class=\"pw-t\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eStep\u003c\/th\u003e\n\u003cth\u003eAction\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003ePrepare 1 % Peptone Water\u003c\/td\u003e\n\u003ctd\u003e10.0 g peptone per litre; autoclave 121 °C \/ 15 min; dispense 5–10 mL per tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eInoculate\u003c\/td\u003e\n\u003ctd\u003ePure culture from 18–24 h growth on solid medium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eIncubate\u003c\/td\u003e\n\u003ctd\u003e37 °C for 24–48 h (aerobic, loosely capped)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eAdd Kovacs' reagent\u003c\/td\u003e\n\u003ctd\u003e0.5 mL to broth surface; do not mix\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003eRead result\u003c\/td\u003e\n\u003ctd\u003eRed ring = indole positive; yellow\/no colour = negative\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px;\" class=\"pw-info\"\u003eReference: ISO 6579-1:2017 Annex D. \u003cem\u003eE. coli\u003c\/em\u003e ATCC 25922 = positive control; \u003cem\u003eKlebsiella pneumoniae\u003c\/em\u003e ATCC 13883 = negative control.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eLiterature \u0026amp; References\u003c\/h2\u003e\n\u003cdiv style=\"font-size: 13px; line-height: 1.8; color: var(--ink-mid);\" class=\"pw-card\"\u003e\n\u003cp style=\"margin-bottom: 8px;\"\u003e1. ISO 6887-1:2017. Microbiology of the food chain — Preparation of test samples, initial suspension and decimal dilutions for microbiological examination. Part 1: General rules for preparation of the initial suspension and decimal dilutions.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 8px;\"\u003e2. ISO 6579-1:2017. Microbiology of the food chain — Horizontal method for the detection, enumeration and serotyping of Salmonella. Part 1: Detection of Salmonella spp.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 8px;\"\u003e3. ISO 11133:2014. Microbiology of food, animal feed and water — Preparation, production, storage and performance testing of culture media.\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 8px;\"\u003e4. Dunham, E.K. (1887). Remarks on Dunham's solution for the cultivation of bacteria. \u003cem\u003eNew York Medical Journal\u003c\/em\u003e, 45, 271–272. (Original description of peptone water as a culture medium.)\u003c\/p\u003e\n\u003cp\u003e5. Bridson, E.Y. (Ed.). (1998). \u003cem\u003eThe Oxoid Manual\u003c\/em\u003e, 8th ed. Unipath Ltd., Basingstoke, UK.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv style=\"margin-bottom: 18px;\" class=\"pw-card\"\u003e\n\u003ch3 style=\"font-size: 14px;\" class=\"pw-sh\"\u003eOrdering Info\u003c\/h3\u003e\n\u003cdiv class=\"pw-kv\"\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eSKU\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eAS-1323\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003ePack sizes\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003e100 g · 500 g · 2 kg\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eDocuments\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eCOA · TDS · SDS · PD\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-kvr\"\u003e\n\u003cspan class=\"pw-kk\"\u003eDispatch\u003c\/span\u003e\u003cspan class=\"pw-kv2\"\u003eMelbourne, same week\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-card-f\"\u003e\n\u003cdiv style=\"font-size: 12px; font-weight: 500; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 10px;\"\u003eImportant Notes\u003c\/div\u003e\n\u003cul style=\"padding-left: 16px; font-size: 13px; color: var(--ink-mid); line-height: 1.8;\"\u003e\n\u003cli\u003eNo buffer — pH drift possible on long incubation\u003c\/li\u003e\n\u003cli\u003eNot for maximum recovery (use BPW or MRD)\u003c\/li\u003e\n\u003cli\u003eDiscard if turbid before inoculation\u003c\/li\u003e\n\u003cli\u003eCaramelisation = invalid batch; do not use\u003c\/li\u003e\n\u003cli\u003eUse correct peptone concentration per intended application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- TAB 3: QC --\u003e\n\u003cdiv class=\"pw-tp\" id=\"pw-qc\"\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003ePerformance Testing — Quality Control\u003c\/h2\u003e\n\u003cdiv style=\"padding: 0; overflow: hidden; margin-bottom: 12px;\" class=\"pw-card\"\u003e\n\u003ctable class=\"pw-t\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTest Organism\u003c\/th\u003e\n\u003cth\u003eATCC No.\u003c\/th\u003e\n\u003cth\u003eTest Purpose\u003c\/th\u003e\n\u003cth\u003eExpected Result\u003c\/th\u003e\n\u003cth\u003eInoculum\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eEscherichia coli\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e25922\u003c\/td\u003e\n\u003ctd\u003eIndole test (1 % PW)\u003c\/td\u003e\n\u003ctd\u003eIndole positive (red ring with Kovacs')\u003c\/td\u003e\n\u003ctd\u003e≤ 100 CFU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eKlebsiella pneumoniae\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e13883\u003c\/td\u003e\n\u003ctd\u003eIndole test negative control (1 % PW)\u003c\/td\u003e\n\u003ctd\u003eIndole negative (no red ring)\u003c\/td\u003e\n\u003ctd\u003e≤ 100 CFU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eEscherichia coli\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e8739\u003c\/td\u003e\n\u003ctd\u003eDiluent recovery (0.1 % PW)\u003c\/td\u003e\n\u003ctd\u003eRecovery ≥ 70 % vs reference diluent\u003c\/td\u003e\n\u003ctd\u003e≤ 100 CFU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cem\u003eStaphylococcus aureus\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd\u003e6538\u003c\/td\u003e\n\u003ctd\u003eDiluent recovery (0.1 % PW)\u003c\/td\u003e\n\u003ctd\u003eRecovery ≥ 70 % vs reference diluent\u003c\/td\u003e\n\u003ctd\u003e≤ 100 CFU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cem\u003eSalmonella\u003c\/em\u003e Typhimurium\u003c\/td\u003e\n\u003ctd\u003e14028\u003c\/td\u003e\n\u003ctd\u003ePre-enrichment survival\u003c\/td\u003e\n\u003ctd\u003eGrowth; detectable after plating\u003c\/td\u003e\n\u003ctd\u003e≤ 100 CFU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 12px; color: var(--muted); padding-left: 4px;\"\u003ePerformance testing per ISO 11133:2014. Inoculum ≤ 100 CFU per strain. PDR ≥ 70 % vs reference medium required for release.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 24px;\"\u003e\n\u003ch2 class=\"pw-sh\"\u003eRelease Criteria\u003c\/h2\u003e\n\u003cdiv class=\"pw-2col\"\u003e\n\u003cdiv style=\"padding: 0; overflow: hidden;\" class=\"pw-card\"\u003e\n\u003ctable class=\"pw-t\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eTest\u003c\/th\u003e\n\u003cth\u003eAcceptance Criterion\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH (25 °C)\u003c\/td\u003e\n\u003ctd\u003e7.0 – 7.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance (powder)\u003c\/td\u003e\n\u003ctd\u003eCream to light tan, free-flowing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance (prepared)\u003c\/td\u003e\n\u003ctd\u003eColourless to pale straw, clear\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSterility (uninoculated)\u003c\/td\u003e\n\u003ctd\u003eNo growth after 14 d at 37 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIndole test (1 %)\u003c\/td\u003e\n\u003ctd\u003ePositive with \u003cem\u003eE. coli\u003c\/em\u003e ATCC 25922\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecovery (0.1 %)\u003c\/td\u003e\n\u003ctd\u003ePDR ≥ 70 % vs reference diluent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"font-size: 13px; color: var(--ink-mid);\" class=\"pw-card-f\"\u003e\n\u003cdiv style=\"font-weight: 500; color: var(--green); margin-bottom: 10px;\"\u003eTesting Standard\u003c\/div\u003e\n\u003cp style=\"margin-bottom: 8px;\"\u003eAll AuSaMicS culture media are performance-tested in accordance with \u003cstrong\u003eISO 11133:2014\u003c\/strong\u003e prior to release.\u003c\/p\u003e\n\u003cp\u003eBatch-specific COA includes lot number, manufacture date, expiry, pH result, and growth promotion test results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- TAB 4: SDS --\u003e\n\u003cdiv class=\"pw-tp\" id=\"pw-sds\"\u003e\n\u003cdiv style=\"margin-bottom: 24px;\" class=\"pw-2col\"\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"pw-sh\"\u003eHazard Summary\u003c\/h2\u003e\n\u003cdiv style=\"font-size: 13px; color: var(--ink-mid); line-height: 1.8; margin-bottom: 16px;\" class=\"pw-card-f\"\u003e\n\u003cp style=\"margin-bottom: 6px;\"\u003e\u003cstrong\u003eGHS Classification:\u003c\/strong\u003e Not classified as hazardous under GHS \/ WHS Regulations (Australia).\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 6px;\"\u003e\u003cstrong\u003eSignal Word:\u003c\/strong\u003e None\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHazard Statements:\u003c\/strong\u003e None applicable\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"pw-warn\"\u003e\n\u003cstrong\u003ePrecautionary Measures:\u003c\/strong\u003e Avoid inhalation of dust during weighing. Wear appropriate laboratory coat and gloves. Wash hands after handling. Treat all cultures as potentially infectious — follow laboratory biosafety protocols.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch2 class=\"pw-sh\"\u003eGHS Sections Summary\u003c\/h2\u003e\n\u003cdiv style=\"padding: 0; overflow: hidden;\" class=\"pw-card\"\u003e\n\u003ctable class=\"pw-t\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSection\u003c\/th\u003e\n\u003cth\u003eKey Information\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1 — Identification\u003c\/td\u003e\n\u003ctd\u003ePeptone Water, AS-1323, AuSaMicS Pty Ltd\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2 — Hazard ID\u003c\/td\u003e\n\u003ctd\u003eNot classified as hazardous (GHS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3 — Composition\u003c\/td\u003e\n\u003ctd\u003ePeptone (pancreatic\/meat digest); purified water\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4 — First Aid\u003c\/td\u003e\n\u003ctd\u003eSkin\/eye: flush with water. Inhalation: fresh air\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5 — Fire Fighting\u003c\/td\u003e\n\u003ctd\u003eNon-flammable; use CO₂ or dry chemical for surrounding fire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e7 — Handling\u003c\/td\u003e\n\u003ctd\u003eAvoid dust inhalation; use aseptic technique with prepared medium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e8 — Exposure Controls\u003c\/td\u003e\n\u003ctd\u003eLocal exhaust; P2 dust mask if powder dispersed; lab coat \u0026amp; gloves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e13 — Disposal\u003c\/td\u003e\n\u003ctd\u003eAutoclave all inoculated media before disposal per local regulations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e15 — Regulatory\u003c\/td\u003e\n\u003ctd\u003eAICIS (Australia) compliant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 20px;\" class=\"pw-info\"\u003eFull 16-section GHS-compliant Safety Data Sheet (SDS) is available as a downloadable PDF from the AuSaMicS product page or upon request. Contact \u003ca style=\"color: var(--green-mid);\" href=\"mailto:support@ausamics.com.au\"\u003esupport@ausamics.com.au\u003c\/a\u003e for batch-specific documentation.\u003c\/div\u003e\n\u003cdiv class=\"pw-disc\"\u003eDISCLAIMER: This product is intended for professional laboratory use only by trained personnel. AuSaMicS Pty Ltd makes no representations regarding fitness for a particular purpose beyond the stated intended use. Users bear full responsibility for verifying suitability for their specific application and compliance with applicable laboratory standards and regulations. AuSaMicS Pty Ltd shall not be liable for any direct, indirect, or consequential damages arising from misuse or misapplication. © AuSaMicS Pty Ltd. All rights reserved. ABN: 56 676 640 467.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Ausamics Life Science","offers":[{"title":"100 g","offer_id":48386009825535,"sku":"AS-1323-100G","price":29.0,"currency_code":"AUD","in_stock":true},{"title":"500 g","offer_id":48386009858303,"sku":"AS-1323-500G","price":69.0,"currency_code":"AUD","in_stock":true},{"title":"2.5 kg","offer_id":48386009891071,"sku":"AS-1323-2.5KG","price":229.0,"currency_code":"AUD","in_stock":true},{"title":"10 kg","offer_id":48386009923839,"sku":"AS-1323-10KG","price":695.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/1087\/0271\/files\/Peptone_Water_PW_AS-1323.jpg?v=1775801679","url":"https:\/\/ausamics.com.au\/products\/peptone-water-pw","provider":"AuSaMicS","version":"1.0","type":"link"}