{"product_id":"orange-serum-agar-osa","title":"Orange Serum Agar","description":"\u003ch3 data-start=\"442\" data-end=\"463\"\u003eOrange Serum Agar\u003c\/h3\u003e\n\u003ch4 data-start=\"465\" data-end=\"538\"\u003eReference Medium for Enumeration of Aciduric Spoilage Microorganisms\u003c\/h4\u003e\n\u003chr data-start=\"540\" data-end=\"543\"\u003e\n\u003ch4 data-start=\"545\" data-end=\"572\"\u003eProduct Identification\u003c\/h4\u003e\n\u003ch5 data-start=\"574\" data-end=\"611\"\u003eChemical \u0026amp; Physical Information\u003c\/h5\u003e\n\u003cp data-start=\"613\" data-end=\"718\"\u003eProduct Name: Orange Serum Agar\u003cbr data-start=\"644\" data-end=\"647\"\u003eMedium Type: Selective solid culture medium\u003cbr data-start=\"690\" data-end=\"693\"\u003eForm: Dehydrated powder\u003c\/p\u003e\n\u003chr data-start=\"720\" data-end=\"723\"\u003e\n\u003ch4 data-start=\"725\" data-end=\"749\"\u003eProduct Description\u003c\/h4\u003e\n\u003cp data-start=\"751\" data-end=\"1152\"\u003eOrange Serum Agar is the \u003cstrong data-start=\"776\" data-end=\"819\"\u003eofficial reference solid culture medium\u003c\/strong\u003e for the \u003cstrong data-start=\"828\" data-end=\"907\"\u003eenumeration and isolation of aciduric spoilage bacteria, yeasts, and moulds\u003c\/strong\u003e from citrus juices, fruit-based beverages, concentrates, syrups, and soft drinks. The formulation closely mimics the \u003cstrong data-start=\"1025\" data-end=\"1062\"\u003enatural low-pH citrus environment\u003c\/strong\u003e, enabling reliable recovery of organisms that survive and proliferate in acidic products.\u003c\/p\u003e\n\u003cp data-start=\"1154\" data-end=\"1464\"\u003eThis medium is specified as the \u003cstrong data-start=\"1186\" data-end=\"1216\"\u003emandatory reference medium\u003c\/strong\u003e in \u003cstrong data-start=\"1220\" data-end=\"1233\"\u003eISO 13681\u003c\/strong\u003e, \u003cstrong data-start=\"1235\" data-end=\"1255\"\u003eIFU Method No. 3\u003c\/strong\u003e, and international fruit-juice and beverage microbiology standards. It is routinely used for quality control testing in juice processing plants, beverage manufacturers, and contract microbiology laboratories.\u003c\/p\u003e\n\u003cp data-start=\"1466\" data-end=\"1630\"\u003eAusamics Orange Serum Agar is supplied as a high-quality dehydrated powder to ensure consistent selectivity, reproducible recovery, and reliable colony development.\u003c\/p\u003e\n\u003chr data-start=\"1632\" data-end=\"1635\"\u003e\n\u003ch4 data-start=\"1637\" data-end=\"1665\"\u003ePrinciple of the Medium\u003c\/h4\u003e\n\u003ch5 data-start=\"1667\" data-end=\"1694\"\u003eFunctional Components\u003c\/h5\u003e\n\u003cp data-start=\"1696\" data-end=\"2056\"\u003eOrange Serum: Provides natural organic acids, sugars, and growth factors characteristic of citrus products\u003cbr data-start=\"1802\" data-end=\"1805\"\u003eYeast Extract: Supplies vitamins and growth factors\u003cbr data-start=\"1856\" data-end=\"1859\"\u003eTryptone \/ Peptone: Provides nitrogen, amino acids, and peptides\u003cbr data-start=\"1923\" data-end=\"1926\"\u003eGlucose: Readily fermentable carbohydrate source\u003cbr data-start=\"1974\" data-end=\"1977\"\u003eDipotassium Phosphate (K₂HPO₄): Buffering component\u003cbr data-start=\"2028\" data-end=\"2031\"\u003eAgar: Solidifying agent\u003c\/p\u003e\n\u003cp data-start=\"2058\" data-end=\"2180\"\u003eThe \u003cstrong data-start=\"2062\" data-end=\"2101\"\u003efinal acidic pH (approximately 5.5)\u003c\/strong\u003e is critical for selectivity and suppresses most non-aciduric background flora.\u003c\/p\u003e\n\u003chr data-start=\"2182\" data-end=\"2185\"\u003e\n\u003ch4 data-start=\"2187\" data-end=\"2215\"\u003eTypical Characteristics\u003c\/h4\u003e\n\u003ch5 data-start=\"2217\" data-end=\"2240\"\u003eMedium Properties\u003c\/h5\u003e\n\u003cp data-start=\"2242\" data-end=\"2467\"\u003eAppearance (dehydrated): Light beige to pale orange powder\u003cbr data-start=\"2300\" data-end=\"2303\"\u003eAppearance (prepared): Amber to orange-tinted agar\u003cbr data-start=\"2353\" data-end=\"2356\"\u003epH (prepared medium): 5.5 ± 0.2 at 25 °C (critical)\u003cbr data-start=\"2407\" data-end=\"2410\"\u003eSelectivity: Aciduric microorganisms\u003cbr data-start=\"2446\" data-end=\"2449\"\u003eDifferential: No\u003c\/p\u003e\n\u003chr data-start=\"2469\" data-end=\"2472\"\u003e\n\u003ch4 data-start=\"2474\" data-end=\"2490\"\u003eComposition\u003c\/h4\u003e\n\u003ch5 data-start=\"2492\" data-end=\"2526\"\u003eStandard Formula (per litre)\u003c\/h5\u003e\n\u003cp data-start=\"2528\" data-end=\"2706\"\u003eOrange Serum (solids equivalent to 200–250 mL fresh orange juice): 4.0–5.0 g\u003cbr data-start=\"2604\" data-end=\"2607\"\u003eYeast Extract: 3.0 g\u003cbr data-start=\"2627\" data-end=\"2630\"\u003eTryptone \/ Peptone: 10.0 g\u003cbr data-start=\"2656\" data-end=\"2659\"\u003eGlucose: 4.0 g\u003cbr data-start=\"2673\" data-end=\"2676\"\u003eK₂HPO₄: 3.0 g\u003cbr data-start=\"2689\" data-end=\"2692\"\u003eAgar: 17.0 g\u003c\/p\u003e\n\u003chr data-start=\"2708\" data-end=\"2711\"\u003e\n\u003ch4 data-start=\"2713\" data-end=\"2738\"\u003eTypical Applications\u003c\/h4\u003e\n\u003ch5 data-start=\"2740\" data-end=\"2781\"\u003eFruit Juice \u0026amp; Beverage Microbiology\u003c\/h5\u003e\n\u003cp data-start=\"2783\" data-end=\"2934\"\u003eTotal viable count in orange, lemon, grapefruit, and mixed fruit juices\u003cbr data-start=\"2854\" data-end=\"2857\"\u003eQuality control of concentrates, syrups, cordials, and carbonated beverages\u003c\/p\u003e\n\u003ch5 data-start=\"2936\" data-end=\"2974\"\u003eSpoilage Microorganism Detection\u003c\/h5\u003e\n\u003cp data-start=\"2976\" data-end=\"3217\"\u003eLactic acid bacteria (\u003cem data-start=\"2998\" data-end=\"3013\"\u003eLactobacillus\u003c\/em\u003e, \u003cem data-start=\"3015\" data-end=\"3028\"\u003eLeuconostoc\u003c\/em\u003e)\u003cbr data-start=\"3029\" data-end=\"3032\"\u003eAcetic acid bacteria (\u003cem data-start=\"3054\" data-end=\"3067\"\u003eAcetobacter\u003c\/em\u003e, \u003cem data-start=\"3069\" data-end=\"3084\"\u003eGluconobacter\u003c\/em\u003e)\u003cbr data-start=\"3085\" data-end=\"3088\"\u003eHeat-resistant spoilers (\u003cem data-start=\"3113\" data-end=\"3131\"\u003eAlicyclobacillus\u003c\/em\u003e)\u003cbr data-start=\"3132\" data-end=\"3135\"\u003eYeasts (\u003cem data-start=\"3143\" data-end=\"3162\"\u003eZygosaccharomyces\u003c\/em\u003e, \u003cem data-start=\"3164\" data-end=\"3173\"\u003eCandida\u003c\/em\u003e)\u003cbr data-start=\"3174\" data-end=\"3177\"\u003eMoulds (\u003cem data-start=\"3185\" data-end=\"3198\"\u003ePenicillium\u003c\/em\u003e, \u003cem data-start=\"3200\" data-end=\"3214\"\u003eByssochlamys\u003c\/em\u003e)\u003c\/p\u003e\n\u003chr data-start=\"3219\" data-end=\"3222\"\u003e\n\u003ch4 data-start=\"3224\" data-end=\"3253\"\u003ePreparation Instructions\u003c\/h4\u003e\n\u003ch5 data-start=\"3255\" data-end=\"3279\"\u003eMedium Preparation\u003c\/h5\u003e\n\u003cp data-start=\"3281\" data-end=\"3482\"\u003eSuspend 41.0 g of dehydrated medium in 1 L purified water\u003cbr data-start=\"3338\" data-end=\"3341\"\u003eHeat with frequent agitation and boil for 1 minute\u003cbr data-start=\"3391\" data-end=\"3394\"\u003eAutoclave at 121 °C for 15 minutes\u003cbr data-start=\"3428\" data-end=\"3431\"\u003eCool to 45–50 °C\u003cbr data-start=\"3447\" data-end=\"3450\"\u003ePour into sterile Petri dishes\u003c\/p\u003e\n\u003chr data-start=\"3484\" data-end=\"3487\"\u003e\n\u003ch4 data-start=\"3489\" data-end=\"3515\"\u003eIncubation Conditions\u003c\/h4\u003e\n\u003ch5 data-start=\"3517\" data-end=\"3545\"\u003eRecommended Conditions\u003c\/h5\u003e\n\u003cp data-start=\"3547\" data-end=\"3676\"\u003eIncubation temperature: 30 ± 1 °C\u003cbr data-start=\"3580\" data-end=\"3583\"\u003eIncubation time: 3–5 days\u003cbr data-start=\"3608\" data-end=\"3611\"\u003eSome laboratories incubate at 25 °C for enhanced mould recovery\u003c\/p\u003e\n\u003chr data-start=\"3678\" data-end=\"3681\"\u003e\n\u003ch4 data-start=\"3683\" data-end=\"3713\"\u003eInterpretation of Results\u003c\/h4\u003e\n\u003ch5 data-start=\"3715\" data-end=\"3746\"\u003eTypical Colony Appearance\u003c\/h5\u003e\n\u003cp data-start=\"3748\" data-end=\"4003\"\u003eLactic acid bacteria: Small, round, white to cream colonies\u003cbr data-start=\"3807\" data-end=\"3810\"\u003e\u003cem data-start=\"3810\" data-end=\"3823\"\u003eAcetobacter\u003c\/em\u003e \/ \u003cem data-start=\"3826\" data-end=\"3841\"\u003eGluconobacter\u003c\/em\u003e: Tiny, opaque colonies; may show clearing zones\u003cbr data-start=\"3889\" data-end=\"3892\"\u003eYeasts: Large, smooth, creamy colonies\u003cbr data-start=\"3930\" data-end=\"3933\"\u003eMoulds: Filamentous mycelial growth with characteristic pigmentation\u003c\/p\u003e\n\u003chr data-start=\"4005\" data-end=\"4008\"\u003e\n\u003ch4 data-start=\"4010\" data-end=\"4034\"\u003eStorage \u0026amp; Stability\u003c\/h4\u003e\n\u003ch5 data-start=\"4036\" data-end=\"4060\"\u003eStorage Conditions\u003c\/h5\u003e\n\u003cp data-start=\"4062\" data-end=\"4235\"\u003ePrepared plates: Store at 2–8 °C in sealed packaging\u003cbr data-start=\"4114\" data-end=\"4117\"\u003eShelf life (prepared plates): Use within 4 weeks\u003cbr data-start=\"4165\" data-end=\"4168\"\u003eDo not use plates showing dehydration, contamination, or pH drift\u003c\/p\u003e\n\u003chr data-start=\"4237\" data-end=\"4240\"\u003e\n\u003ch4 data-start=\"4242\" data-end=\"4259\"\u003eIntended Use\u003c\/h4\u003e\n\u003ch5 data-start=\"4261\" data-end=\"4287\"\u003eRegulatory Statement\u003c\/h5\u003e\n\u003cp data-start=\"4289\" data-end=\"4361\"\u003eFor \u003cstrong data-start=\"4293\" data-end=\"4360\"\u003efruit-juice, soft-drink, and beverage microbiology testing only\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"4363\" data-end=\"4430\"\u003eNot intended for medical, veterinary, or food consumption purposes.\u003c\/p\u003e\n\u003chr data-start=\"4432\" data-end=\"4435\"\u003e\n\u003ch4 data-start=\"4437\" data-end=\"4468\"\u003eQuality \u0026amp; Supply Assurance\u003c\/h4\u003e\n\u003ch5 data-start=\"4470\" data-end=\"4505\"\u003eManufacturing \u0026amp; Documentation\u003c\/h5\u003e\n\u003cp data-start=\"4507\" data-end=\"4703\"\u003eManufactured under controlled conditions\u003cbr data-start=\"4547\" data-end=\"4550\"\u003eMeets ISO and IFU performance expectations\u003cbr data-start=\"4592\" data-end=\"4595\"\u003eCertificate of Analysis (COA) available upon request\u003cbr data-start=\"4647\" data-end=\"4650\"\u003eTechnical support provided by Ausamics Life Science\u003c\/p\u003e\n\u003chr data-start=\"4705\" data-end=\"4708\"\u003e\n\u003ch4 data-start=\"4710\" data-end=\"4724\"\u003eReference\u003c\/h4\u003e\n\u003ch5 data-start=\"4726\" data-end=\"4754\"\u003eStandards \u0026amp; Literature\u003c\/h5\u003e\n\u003cp data-start=\"4756\" data-end=\"4829\"\u003eHays (1951)\u003cbr data-start=\"4767\" data-end=\"4770\"\u003eMurdock et al. (1952)\u003cbr data-start=\"4791\" data-end=\"4794\"\u003eIFU Method No. 3\u003cbr data-start=\"4810\" data-end=\"4813\"\u003eISO 13681:1999\u003c\/p\u003e\n\u003chr data-start=\"4831\" data-end=\"4834\"\u003e\n\u003ch4 data-start=\"4836\" data-end=\"4868\"\u003eCustoms \u0026amp; Trade Information\u003c\/h4\u003e\n\u003ch5 data-start=\"4870\" data-end=\"4890\"\u003eClassification\u003c\/h5\u003e\n\u003cp data-start=\"4892\" data-end=\"4995\"\u003eHS \/ AHECC Code: 3821.00.00\u003cbr data-start=\"4919\" data-end=\"4922\"\u003ePrepared culture media for development or maintenance of microorganisms\u003c\/p\u003e","brand":"Ausamics Life Science","offers":[{"title":"500 g","offer_id":48129427144959,"sku":"AS-1312-500G","price":87.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/1087\/0271\/files\/culturemedia_image_0cf44194-f8fd-4648-9fa4-1e121ef9a67a.jpg?v=1771062998","url":"https:\/\/ausamics.com.au\/products\/orange-serum-agar-osa","provider":"AuSaMicS","version":"1.0","type":"link"}