{"product_id":"lysine-decarboxylase-broth-ldb","title":"Lysine Decarboxylase Broth (LDB) | Enterobacteriaceae Detection – Ausamics","description":"\u003cdiv style=\"font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; color: #1d2935; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 20px;\" class=\"aus-nutrient-product\"\u003e\n  \u003c!-- Hero Section --\u003e\n  \u003cdiv style=\"background: linear-gradient(135deg, #f0f4f8 0%, #d9e2ec 100%); border-radius: 18px; padding: 40px; margin-bottom: 30px; box-shadow: 0 4px 15px rgba(0,0,0,0.08); border: 1px solid #d8e1e8; border-left: 8px solid #2d5a3d;\" class=\"aus-hero-section\"\u003e\n    \u003cdiv class=\"aus-hero-grid\" style=\"display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: start;\"\u003e\n      \u003cdiv\u003e\n        \u003cdiv style=\"display: inline-block; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: #2d5a3d; font-weight: bold; margin-bottom: 12px; background: #fff; padding: 6px 12px; border-radius: 20px; border: 1px solid #d8e1e8;\"\u003eAuSaMicS Life Science • Biochemical Identification Media\u003c\/div\u003e\n        \u003ch1 style=\"color: #15324b; margin: 0 0 8px 0; font-size: 32px; font-weight: bold;\"\u003eLysine Decarboxylase Broth\u003c\/h1\u003e\n        \u003ch2 style=\"color: #243b53; margin: 0 0 15px 0; font-weight: 400; font-size: 20px; opacity: 0.9;\"\u003eDifferential Broth for Lysine Decarboxylase Activity\u003c\/h2\u003e\n        \u003cp style=\"font-size: 17px; margin: 0 0 20px 0; color: #334e68; max-width: 650px; font-weight: 500;\"\u003eStandard liquid medium for determining whether a microorganism possesses \u003cstrong\u003elysine decarboxylase\u003c\/strong\u003e, enabling conversion of L-lysine to cadaverine under anaerobic conditions. Widely used in Salmonella confirmation, Enterobacteriaceae differentiation, and conventional biochemical identification workflows.\u003c\/p\u003e\n        \u003cdiv style=\"display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 20px;\"\u003e\n          \u003cspan style=\"background: #2d5a3d; color: #fff; padding: 8px 16px; border-radius: 25px; font-size: 13px; font-weight: 600; white-space: nowrap;\"\u003eAS-1278\u003c\/span\u003e\n          \u003cspan style=\"background: #fff; border: 2px solid #28a745; color: #28a745; padding: 8px 16px; border-radius: 25px; font-size: 13px; font-weight: 600; white-space: nowrap;\"\u003e🧪 Biochemical Identification\u003c\/span\u003e\n          \u003cspan style=\"background: #28a745; color: #fff; padding: 8px 16px; border-radius: 25px; font-size: 13px; font-weight: 600; white-space: nowrap;\"\u003e✓ Salmonella Workflow\u003c\/span\u003e\n          \u003cspan style=\"background: #c9a84c; color: #1a1a1a; padding: 8px 16px; border-radius: 25px; font-size: 13px; font-weight: 600; white-space: nowrap;\"\u003e🔬 Decarboxylase Test\u003c\/span\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"display: flex; gap: 20px; flex-wrap: wrap; font-size: 14px; color: #4a5568;\"\u003e\n          \u003cspan\u003e\u003cstrong\u003eReadout:\u003c\/strong\u003e Yellow to purple reversal\u003c\/span\u003e\n          \u003cspan\u003e\u003cstrong\u003eRequirement:\u003c\/strong\u003e Mineral oil overlay\u003c\/span\u003e\n          \u003cspan\u003e\u003cstrong\u003eUse:\u003c\/strong\u003e Enterobacteriaceae differentiation\u003c\/span\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n\n      \u003c!-- Quality Box --\u003e\n      \u003cdiv class=\"aus-guarantee\" style=\"background: #fff; padding: 25px; border-radius: 18px; box-shadow: 0 6px 20px rgba(0,0,0,0.1); min-width: 280px; border: 1px solid #d8e1e8;\"\u003e\n        \u003ch4 style=\"color: #15324b; margin: 0 0 15px 0; text-align: center; font-size: 16px;\"\u003eBiochemical Media Specialist\u003c\/h4\u003e\n        \u003cdiv style=\"font-size: 14px; color: #4a5568; text-align: center; line-height: 1.5;\"\u003e\n          \u003cdiv style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eSalmonella Confirmation\u003c\/strong\u003e - Classical lysine-positive screening support\u003c\/div\u003e\n          \u003cdiv style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eViability Control\u003c\/strong\u003e - Initial glucose fermentation step\u003c\/div\u003e\n          \u003cdiv style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eClear Indicator System\u003c\/strong\u003e - Bromocresol purple colour shift\u003c\/div\u003e\n          \u003cdiv style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eAnaerobic Reaction Design\u003c\/strong\u003e - Mineral oil overlay method\u003c\/div\u003e\n          \u003cdiv style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eRoutine Lab Utility\u003c\/strong\u003e - Conventional identification series\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"margin-top: 20px; padding: 15px; background: #f0f4f1; border-radius: 12px; text-align: center; border: 1px solid #c8d8cc;\"\u003e\n          \u003cdiv style=\"color: #2d5a3d; font-weight: 600; font-size: 14px;\"\u003eClassical Decarboxylase Test\u003c\/div\u003e\n          \u003cdiv style=\"color: #4a5568; font-size: 13px; margin-top: 5px;\"\u003eEssential for enteric identification workflows\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Main Grid --\u003e\n  \u003cdiv class=\"aus-main-grid\" style=\"display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 40px; margin-bottom: 40px;\"\u003e\n    \u003cdiv\u003e\n      \u003c!-- Composition --\u003e\n      \u003cdiv style=\"margin-bottom: 35px;\"\u003e\n        \u003ch3 style=\"color: #15324b; font-size: 22px; margin: 0 0 15px 0; padding-bottom: 10px; border-bottom: 3px solid #1d6fb8;\"\u003e🧪 Complete Formulation \u0026amp; Reaction Principle\u003c\/h3\u003e\n\n        \u003cdiv style=\"background: #f8fafc; padding: 20px; border-radius: 16px; border-left: 5px solid #1d6fb8; margin-bottom: 20px;\"\u003e\n          \u003ch4 style=\"color: #15324b; margin: 0 0 15px 0; font-size: 16px;\"\u003e📋 Composition (per Liter)\u003c\/h4\u003e\n          \u003cdiv style=\"overflow-x: auto;\"\u003e\n            \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; border: 1px solid #d8e1e8; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.05);\"\u003e\n              \u003cthead style=\"background: #f6f8fb;\"\u003e\n                \u003ctr\u003e\n                  \u003cth style=\"padding: 12px; border-bottom: 2px solid #d8e1e8; text-align: left; font-weight: bold;\"\u003eIngredient\u003c\/th\u003e\n                  \u003cth style=\"padding: 12px; border-bottom: 2px solid #d8e1e8; text-align: left; font-weight: bold;\"\u003eConcentration\u003c\/th\u003e\n                  \u003cth style=\"padding: 12px; border-bottom: 2px solid #d8e1e8; text-align: left; font-weight: bold;\"\u003ePrimary Function\u003c\/th\u003e\n                  \u003cth style=\"padding: 12px; border-bottom: 2px solid #d8e1e8; text-align: left; font-weight: bold;\"\u003eContribution\u003c\/th\u003e\n                \u003c\/tr\u003e\n              \u003c\/thead\u003e\n              \u003ctbody\u003e\n                \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n                  \u003ctd style=\"padding: 10px; font-weight: 600;\"\u003eL-Lysine HCl\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px; color: #2d5a3d; font-weight: 600;\"\u003e5.0 g\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003eTarget substrate\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003eProvides lysine for decarboxylase reaction\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n                  \u003ctd style=\"padding: 10px; font-weight: 600;\"\u003eYeast Extract\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px; color: #2d5a3d; font-weight: 600;\"\u003e3.0 g\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003eGrowth support\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003eProvides nitrogen, vitamins, and growth factors\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n                  \u003ctd style=\"padding: 10px; font-weight: 600;\"\u003eGlucose\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003e1.0 g\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003eFermentable carbohydrate\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003eInitial acidification confirms viability\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                  \u003ctd style=\"padding: 10px; font-weight: 600;\"\u003eBromocresol Purple\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px; color: #c9a84c; font-weight: 600;\"\u003e0.02 g\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003epH indicator\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003eYellow in acid, purple in alkaline reaction\u003c\/td\u003e\n                \u003c\/tr\u003e\n              \u003c\/tbody\u003e\n            \u003c\/table\u003e\n          \u003c\/div\u003e\n          \u003cdiv style=\"margin-top: 15px; background: #eef5ff; padding: 12px 14px; border-radius: 10px; border: 1px solid #d8e1e8; color: #15324b; font-size: 14px;\"\u003e\n            \u003cstrong\u003eFinal pH:\u003c\/strong\u003e 6.8 ± 0.2 at 25°C\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv style=\"background: #fff; padding: 20px; border-radius: 16px; border: 1px solid #d8e1e8; margin-bottom: 20px;\"\u003e\n          \u003ch4 style=\"color: #15324b; margin: 0 0 15px 0; font-size: 16px;\"\u003e⚗️ Principle of the Test\u003c\/h4\u003e\n          \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px;\"\u003e\n            \u003cdiv style=\"background: #f0f4f1; padding: 15px; border-radius: 12px; border-left: 4px solid #2d5a3d;\"\u003e\n              \u003cstrong style=\"color: #2d5a3d;\"\u003eViability Check\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003eSmall amount of glucose is fermented first, turning the broth yellow\u003c\/span\u003e\n            \u003c\/div\u003e\n            \u003cdiv style=\"background: #fff9e6; padding: 15px; border-radius: 12px; border-left: 4px solid #c9a84c;\"\u003e\n              \u003cstrong style=\"color: #c9a84c;\"\u003eAnaerobic Decarboxylation\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003eMineral oil overlay creates conditions required for lysine decarboxylase activity\u003c\/span\u003e\n            \u003c\/div\u003e\n            \u003cdiv style=\"background: #e8f2ff; padding: 15px; border-radius: 12px; border-left: 4px solid #1565c0;\"\u003e\n              \u003cstrong style=\"color: #1565c0;\"\u003eAlkaline Reversal\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003ePositive organisms convert lysine to cadaverine, returning the broth to purple\u003c\/span\u003e\n            \u003c\/div\u003e\n          \u003c\/div\u003e\n          \u003cdiv style=\"background: #f0f4f1; padding: 15px; border-radius: 10px; margin-top: 15px; border: 1px solid #c8d8cc;\"\u003e\n            \u003cstrong style=\"color: #2d5a3d;\"\u003eWhy Lysine Decarboxylase Broth?\u003c\/strong\u003e It helps distinguish key enteric pathogens and coliforms in classical biochemical identification, especially in Salmonella workups.\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003c!-- Comparison --\u003e\n        \u003cdiv style=\"margin-top: 30px;\"\u003e\n          \u003ch3 style=\"color: #15324b; font-size: 22px; margin: 0 0 20px 0; padding-bottom: 10px; border-bottom: 3px solid #1d6fb8;\"\u003eComplete Enteric Identification Media Portfolio\u003c\/h3\u003e\n          \u003cdiv style=\"overflow-x: auto;\"\u003e\n            \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; border: 1px solid #d8e1e8; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,0.05); min-width: 1000px;\"\u003e\n              \u003cthead style=\"background: #f6f8fb;\"\u003e\n                \u003ctr\u003e\n                  \u003cth style=\"padding: 15px 12px; border-bottom: 2px solid #d8e1e8; text-align: left; font-weight: bold;\"\u003eMedium\u003c\/th\u003e\n                  \u003cth style=\"padding: 15px 12px; border-bottom: 2px solid #d8e1e8; text-align: left; font-weight: bold;\"\u003eType\u003c\/th\u003e\n                  \u003cth style=\"padding: 15px 12px; border-bottom: 2px solid #d8e1e8; text-align: left; font-weight: bold;\"\u003eMain Readout\u003c\/th\u003e\n                  \u003cth style=\"padding: 15px 12px; border-bottom: 2px solid #d8e1e8; text-align: left; font-weight: bold;\"\u003eBest Application\u003c\/th\u003e\n                  \u003cth style=\"padding: 15px 12px; border-bottom: 2px solid #d8e1e8; text-align: left; font-weight: bold;\"\u003eWorkflow Position\u003c\/th\u003e\n                  \u003cth style=\"padding: 15px 12px; border-bottom: 2px solid #d8e1e8; text-align: left; font-weight: bold;\"\u003eKey Advantage\u003c\/th\u003e\n                \u003c\/tr\u003e\n              \u003c\/thead\u003e\n              \u003ctbody\u003e\n                \u003ctr style=\"background: #f0f4f1; border-bottom: 1px solid #e2e8f0;\"\u003e\n                  \u003ctd style=\"padding: 12px; font-weight: bold; color: #2d5a3d;\"\u003eLysine Decarboxylase Broth\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eBiochemical differential broth\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eYellow to purple reversal\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px; font-weight: 600;\"\u003eSalmonella confirmation and enteric differentiation\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eAfter primary isolation \/ screening\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eClassical lysine decarboxylase determination\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/triple-sugar-iron-agar\" style=\"color: #1976d2; text-decoration: none; font-weight: 600;\"\u003eTriple Sugar Iron Agar\u003c\/a\u003e\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eDifferential tube medium\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eSugar use, gas, H\u003csub\u003e2\u003c\/sub\u003eS\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003ePrimary enteric screening\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eEarly screening step\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eMultiple reactions in one tube\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/kligler-iron-agar\" style=\"color: #e91e63; text-decoration: none; font-weight: 600;\"\u003eKligler Iron Agar\u003c\/a\u003e\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eDifferential tube medium\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eGlucose\/lactose fermentation and H\u003csub\u003e2\u003c\/sub\u003eS\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003ePreliminary enteric differentiation\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eInitial workup\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eClassic enteric separation tool\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/urea-broth\" style=\"color: #6f42c1; text-decoration: none; font-weight: 600;\"\u003eUrea Broth \/ Urea Agar\u003c\/a\u003e\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eBiochemical reaction medium\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eUrease activity\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eDifferentiation of urease-positive enterics\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eSupplementary test\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eRapid enzyme-based interpretation\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003e\u003ca href=\"\/products\/citrate-agar\" style=\"color: #795548; text-decoration: none; font-weight: 600;\"\u003eCitrate Agar\u003c\/a\u003e\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eUtilization medium\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eAlkaline citrate utilization\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eIMViC and enteric ID\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eSupplementary biochemical step\u003c\/td\u003e\n                  \u003ctd style=\"padding: 12px;\"\u003eCommon companion test in enteric profiles\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\n      \u003c!-- Pros \u0026 Cons --\u003e\n      \u003cdiv style=\"margin-bottom: 35px;\"\u003e\n        \u003ch3 style=\"color: #15324b; font-size: 22px; margin: 0 0 20px 0; padding-bottom: 10px; border-bottom: 3px solid #1d6fb8;\"\u003eStrategic Medium Selection for Lysine Decarboxylase Testing\u003c\/h3\u003e\n        \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-bottom: 25px;\"\u003e\n          \u003cdiv style=\"background: #e8f5e8; padding: 20px; border-radius: 16px; border: 1px solid #c8e6c9;\"\u003e\n            \u003ch4 style=\"color: #2e7d32; margin: 0 0 15px 0; font-size: 16px;\"\u003e✅ Lysine Decarboxylase Broth Advantages\u003c\/h4\u003e\n            \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #2e7d32;\"\u003e✓ \u003cstrong\u003eClassical Salmonella Support:\u003c\/strong\u003e Useful in standard confirmation workflows\u003c\/li\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #2e7d32;\"\u003e✓ \u003cstrong\u003eBuilt-in Viability Check:\u003c\/strong\u003e Initial glucose acidification confirms growth\u003c\/li\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #2e7d32;\"\u003e✓ \u003cstrong\u003eClear Colour Logic:\u003c\/strong\u003e Purple reversal indicates positive decarboxylation\u003c\/li\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #2e7d32;\"\u003e✓ \u003cstrong\u003eWidely Recognised:\u003c\/strong\u003e Used in conventional and regulatory identification series\u003c\/li\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #2e7d32;\"\u003e✓ \u003cstrong\u003eGood Differential Utility:\u003c\/strong\u003e Helps separate Salmonella\/Citrobacter from many other enterics\u003c\/li\u003e\n            \u003c\/ul\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv style=\"background: #fff3e0; padding: 20px; border-radius: 16px; border: 1px solid #ffcc02;\"\u003e\n            \u003ch4 style=\"color: #e65100; margin: 0 0 15px 0; font-size: 16px;\"\u003e⚠️ Method Considerations\u003c\/h4\u003e\n            \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #e65100;\"\u003e▲ \u003cstrong\u003eAnaerobic Condition Required:\u003c\/strong\u003e Mineral oil or paraffin overlay is essential\u003c\/li\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #e65100;\"\u003e▲ \u003cstrong\u003eHeat Sensitivity:\u003c\/strong\u003e Over-sterilization can affect lysine performance\u003c\/li\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #e65100;\"\u003e▲ \u003cstrong\u003eInterpretation Timing Matters:\u003c\/strong\u003e Early and late reads can differ\u003c\/li\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #e65100;\"\u003e▲ \u003cstrong\u003eVariable Organisms Exist:\u003c\/strong\u003e Some Proteus \/ Providencia reactions may be atypical or fading\u003c\/li\u003e\n            \u003c\/ul\u003e\n          \u003c\/div\u003e\n\n          \u003cdiv style=\"background: #f0f4f1; padding: 20px; border-radius: 16px; border: 1px solid #c8d8cc;\"\u003e\n            \u003ch4 style=\"color: #2d5a3d; margin: 0 0 15px 0; font-size: 16px;\"\u003e🎯 Best-Fit Applications\u003c\/h4\u003e\n            \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #2d5a3d;\"\u003e◆ \u003cstrong\u003eSalmonella Confirmation:\u003c\/strong\u003e Follow-up after TSI\/KIA screening\u003c\/li\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #2d5a3d;\"\u003e◆ \u003cstrong\u003eCitrobacter Differentiation:\u003c\/strong\u003e Support in separating coliform groups\u003c\/li\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #2d5a3d;\"\u003e◆ \u003cstrong\u003eAPI \/ Conventional ID Workflows:\u003c\/strong\u003e Enteric biochemical profiling\u003c\/li\u003e\n              \u003cli style=\"padding: 6px 0; font-size: 14px; color: #2d5a3d;\"\u003e◆ \u003cstrong\u003eReference Laboratory Testing:\u003c\/strong\u003e Regulatory and classical microbiology methods\u003c\/li\u003e\n            \u003c\/ul\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n\n        \u003cdiv style=\"background: #f8fafc; padding: 20px; border-radius: 16px; border-left: 5px solid #2d5a3d;\"\u003e\n          \u003ch4 style=\"color: #15324b; margin: 0 0 15px 0; font-size: 16px;\"\u003e📊 Interpretation Guide\u003c\/h4\u003e\n          \u003cdiv style=\"overflow-x: auto;\"\u003e\n            \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; border: 1px solid #d8e1e8; border-radius: 8px; overflow: hidden;\"\u003e\n              \u003cthead style=\"background: #2d5a3d; color: #fff;\"\u003e\n                \u003ctr\u003e\n                  \u003cth style=\"padding: 12px; border-bottom: 1px solid #d8e1e8; text-align: left;\"\u003eObservation\u003c\/th\u003e\n                  \u003cth style=\"padding: 12px; border-bottom: 1px solid #d8e1e8; text-align: left;\"\u003eInterpretation\u003c\/th\u003e\n                  \u003cth style=\"padding: 12px; border-bottom: 1px solid #d8e1e8; text-align: left;\"\u003eTypical Meaning\u003c\/th\u003e\n                  \u003cth style=\"padding: 12px; border-bottom: 1px solid #d8e1e8; text-align: left;\"\u003eExamples\u003c\/th\u003e\n                \u003c\/tr\u003e\n              \u003c\/thead\u003e\n              \u003ctbody style=\"background: #fff;\"\u003e\n                \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n                  \u003ctd style=\"padding: 10px; font-weight: 600;\"\u003eInitial yellow, then purple\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px; color: #28a745; font-weight: 600;\"\u003eLysine decarboxylase positive\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003eViability confirmed, decarboxylation occurred\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003e\n\u003cem\u003eSalmonella\u003c\/em\u003e, many \u003cem\u003eCitrobacter\u003c\/em\u003e\n\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr style=\"border-bottom: 1px solid #e2e8f0;\"\u003e\n                  \u003ctd style=\"padding: 10px; font-weight: 600;\"\u003eRemains yellow\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px; color: #e65100; font-weight: 600;\"\u003eLysine decarboxylase negative\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003eGlucose fermentation without alkaline reversal\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003e\n\u003cem\u003eE. coli\u003c\/em\u003e, \u003cem\u003eShigella\u003c\/em\u003e, \u003cem\u003eKlebsiella\u003c\/em\u003e, \u003cem\u003eEnterobacter\u003c\/em\u003e\n\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                  \u003ctd style=\"padding: 10px; font-weight: 600;\"\u003eFading \/ colourless \/ variable\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px; color: #e65100; font-weight: 600;\"\u003eVariable or atypical\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003eInterpret with caution and companion tests\u003c\/td\u003e\n                  \u003ctd style=\"padding: 10px;\"\u003e\n\u003cem\u003eProteus\u003c\/em\u003e, some \u003cem\u003eProvidencia\u003c\/em\u003e\n\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\n      \u003c!-- QC --\u003e\n      \u003cdiv style=\"background: linear-gradient(135deg, #f0f4f1 0%, #c8d8cc 100%); padding: 20px; border-radius: 16px; border-left: 5px solid #2d5a3d;\"\u003e\n        \u003ch4 style=\"color: #2d5a3d; margin: 0 0 15px 0; font-size: 16px;\"\u003e🔬 Quality Control \u0026amp; Performance Guidance\u003c\/h4\u003e\n        \u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px;\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong style=\"color: #2d5a3d;\"\u003eTypical Positives:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003e\u003cem\u003eSalmonella\u003c\/em\u003e (non-typhi), many \u003cem\u003eCitrobacter\u003c\/em\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003esome \u003cem\u003eProvidencia\u003c\/em\u003e\u003c\/span\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\n            \u003cstrong style=\"color: #2d5a3d;\"\u003eTypical Negatives:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003e\u003cem\u003eE. coli\u003c\/em\u003e, \u003cem\u003eShigella\u003c\/em\u003e, \u003cem\u003eKlebsiella\u003c\/em\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003e\u003cem\u003eEnterobacter\u003c\/em\u003e, \u003cem\u003eSerratia\u003c\/em\u003e\u003c\/span\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\n            \u003cstrong style=\"color: #2d5a3d;\"\u003eIncubation:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003e35–37°C\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003e18–48 h after overlay\u003c\/span\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\n            \u003cstrong style=\"color: #2d5a3d;\"\u003ePreparation Note:\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003eSterilize only 10–12 min\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-size: 14px; color: #5d4037;\"\u003eLysine is heat-sensitive\u003c\/span\u003e\n          \u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv style=\"background: rgba(255,255,255,0.7); padding: 15px; border-radius: 10px; margin-top: 15px; border: 1px solid #c8d8cc;\"\u003e\n          \u003cstrong style=\"color: #2d5a3d;\"\u003ePositioning:\u003c\/strong\u003e A core biochemical broth for laboratory identification of enteric bacteria, especially useful in Salmonella confirmation and classical regulatory microbiology workflows.\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Right Column --\u003e\n    \u003cdiv\u003e\n      \u003c!-- Specs --\u003e\n      \u003cdiv style=\"background: #fff; padding: 25px; border-radius: 18px; border: 1px solid #d8e1e8; box-shadow: 0 4px 12px rgba(0,0,0,0.08); margin-bottom: 30px;\"\u003e\n        \u003ch3 style=\"color: #15324b; margin: 0 0 20px 0; font-size: 18px; text-align: center;\"\u003e📋 Technical Specifications\u003c\/h3\u003e\n        \u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px;\"\u003e\n          \u003ctbody\u003e\n            \u003ctr style=\"border-bottom: 1px solid #d8e1e8;\"\u003e\n              \u003ctd style=\"padding: 12px 8px; font-weight: 600; color: #15324b; width: 45%; background: #f6f8fb;\"\u003eCatalogue Number\u003c\/td\u003e\n              \u003ctd style=\"padding: 12px 8px; color: #4a5568;\"\u003eAS-1278\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"border-bottom: 1px solid #d8e1e8;\"\u003e\n              \u003ctd style=\"padding: 12px 8px; font-weight: 600; color: #15324b; background: #f6f8fb;\"\u003eMedium Type\u003c\/td\u003e\n              \u003ctd style=\"padding: 12px 8px; color: #4a5568;\"\u003eDifferential biochemical broth\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"border-bottom: 1px solid #d8e1e8;\"\u003e\n              \u003ctd style=\"padding: 12px 8px; font-weight: 600; color: #15324b; background: #f6f8fb;\"\u003eBase Weight\u003c\/td\u003e\n              \u003ctd style=\"padding: 12px 8px; color: #4a5568;\"\u003e9.02 g\/L\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"border-bottom: 1px solid #d8e1e8;\"\u003e\n              \u003ctd style=\"padding: 12px 8px; font-weight: 600; color: #15324b; background: #f6f8fb;\"\u003eFinal pH\u003c\/td\u003e\n              \u003ctd style=\"padding: 12px 8px; color: #4a5568;\"\u003e6.8 ± 0.2 (at 25°C)\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"border-bottom: 1px solid #d8e1e8;\"\u003e\n              \u003ctd style=\"padding: 12px 8px; font-weight: 600; color: #15324b; background: #f6f8fb;\"\u003eIndicator\u003c\/td\u003e\n              \u003ctd style=\"padding: 12px 8px; color: #4a5568;\"\u003eBromocresol Purple\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"border-bottom: 1px solid #d8e1e8;\"\u003e\n              \u003ctd style=\"padding: 12px 8px; font-weight: 600; color: #15324b; background: #f6f8fb;\"\u003eAnaerobic Requirement\u003c\/td\u003e\n              \u003ctd style=\"padding: 12px 8px; color: #4a5568;\"\u003eMineral oil or liquid paraffin overlay\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"border-bottom: 1px solid #d8e1e8;\"\u003e\n              \u003ctd style=\"padding: 12px 8px; font-weight: 600; color: #15324b; background: #f6f8fb;\"\u003eDispensing Volume\u003c\/td\u003e\n              \u003ctd style=\"padding: 12px 8px; color: #4a5568;\"\u003e4–5 mL per tube\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"border-bottom: 1px solid #d8e1e8;\"\u003e\n              \u003ctd style=\"padding: 12px 8px; font-weight: 600; color: #15324b; background: #f6f8fb;\"\u003eSterilization\u003c\/td\u003e\n              \u003ctd style=\"padding: 12px 8px; color: #d9534f; font-weight: 600;\"\u003e121°C for only 10–12 minutes\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr style=\"border-bottom: 1px solid #d8e1e8;\"\u003e\n              \u003ctd style=\"padding: 12px 8px; font-weight: 600; color: #15324b; background: #f6f8fb;\"\u003eIncubation\u003c\/td\u003e\n              \u003ctd style=\"padding: 12px 8px; color: #4a5568;\"\u003e35–37°C for 18–48 h\u003c\/td\u003e\n            \u003c\/tr\u003e\n            \u003ctr\u003e\n              \u003ctd style=\"padding: 12px 8px; font-weight: 600; color: #15324b; background: #f6f8fb;\"\u003ePrepared Tube Storage\u003c\/td\u003e\n              \u003ctd style=\"padding: 12px 8px; color: #28a745; font-weight: 600;\"\u003e2–8°C, protected from light, up to 3 months\u003c\/td\u003e\n            \u003c\/tr\u003e\n          \u003c\/tbody\u003e\n        \u003c\/table\u003e\n      \u003c\/div\u003e\n\n      \u003c!-- Applications --\u003e\n      \u003cdiv style=\"background: #f0f4f1; padding: 20px; border-radius: 16px; border: 1px solid #c8d8cc; margin-bottom: 30px;\"\u003e\n        \u003ch4 style=\"color: #2d5a3d; margin: 0 0 15px 0; font-size: 16px; text-align: center;\"\u003e🧫 Primary Applications\u003c\/h4\u003e\n        \u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n          \u003cli style=\"padding: 8px 0; font-size: 14px; color: #2d5a3d;\"\u003e✓ Confirmation of \u003cem\u003eSalmonella\u003c\/em\u003e after TSI\/KIA screening\u003c\/li\u003e\n          \u003cli style=\"padding: 8px 0; font-size: 14px; color: #2d5a3d;\"\u003e✓ Differentiation of \u003cem\u003eCitrobacter\u003c\/em\u003e from other coliforms\u003c\/li\u003e\n          \u003cli style=\"padding: 8px 0; font-size: 14px; color: #2d5a3d;\"\u003e✓ Conventional biochemical identification series\u003c\/li\u003e\n          \u003cli style=\"padding: 8px 0; font-size: 14px; color: #2d5a3d;\"\u003e✓ Support for API-style and regulatory workflows\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n\n      \u003c!-- Prep --\u003e\n      \u003cdiv style=\"background: #fff9e6; padding: 20px; border-radius: 16px; border: 1px solid #c9a84c; margin-bottom: 30px;\"\u003e\n        \u003ch4 style=\"color: #c9a84c; margin: 0 0 15px 0; font-size: 16px; text-align: center;\"\u003e⚗️ Preparation \u0026amp; Test Procedure\u003c\/h4\u003e\n        \u003col style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n          \u003cli style=\"padding: 8px 0; font-size: 14px; color: #5d4037;\"\u003e\n\u003cstrong\u003e1.\u003c\/strong\u003e Dissolve 9.02 g dehydrated medium in 1 L purified water.\u003c\/li\u003e\n          \u003cli style=\"padding: 8px 0; font-size: 14px; color: #5d4037;\"\u003e\n\u003cstrong\u003e2.\u003c\/strong\u003e Dispense 4–5 mL into small tubes.\u003c\/li\u003e\n          \u003cli style=\"padding: 8px 0; font-size: 14px; color: #5d4037;\"\u003e\n\u003cstrong\u003e3.\u003c\/strong\u003e Autoclave at 121°C for only 10–12 minutes.\u003c\/li\u003e\n          \u003cli style=\"padding: 8px 0; font-size: 14px; color: #5d4037;\"\u003e\n\u003cstrong\u003e4.\u003c\/strong\u003e Inoculate heavily from an 18–24 h pure culture.\u003c\/li\u003e\n          \u003cli style=\"padding: 8px 0; font-size: 14px; color: #5d4037;\"\u003e\n\u003cstrong\u003e5.\u003c\/strong\u003e Overlay with 8–10 mm sterile mineral oil or liquid paraffin and incubate at 35–37°C for 18–48 h.\u003c\/li\u003e\n        \u003c\/ol\u003e\n      \u003c\/div\u003e\n\n      \u003c!-- Storage \/ Safety --\u003e\n      \u003cdiv style=\"background: #fff; padding: 20px; border-radius: 16px; border: 1px solid #d8e1e8;\"\u003e\n        \u003ch4 style=\"color: #15324b; margin: 0 0 15px 0; font-size: 16px; text-align: center;\"\u003e📦 Storage \u0026amp; Intended Use\u003c\/h4\u003e\n        \u003cdiv style=\"font-size: 14px; color: #4a5568; line-height: 1.7;\"\u003e\n          \u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cstrong\u003ePrepared tubes:\u003c\/strong\u003e Store at 2–8°C, protected from light.\u003c\/p\u003e\n          \u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cstrong\u003eUse period:\u003c\/strong\u003e Use within 3 months for optimal performance.\u003c\/p\u003e\n          \u003cp style=\"margin: 0 0 10px 0;\"\u003e\u003cstrong\u003eTest note:\u003c\/strong\u003e Read results in the context of proper overlay and incubation timing.\u003c\/p\u003e\n          \u003cp style=\"margin: 0; color: #d9534f; font-weight: 600;\"\u003e\u003cstrong\u003eNotice:\u003c\/strong\u003e For laboratory identification use only.\u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003c!-- Footer --\u003e\n  \u003cdiv style=\"margin-top: 30px; background: #f8fafc; border: 1px solid #d8e1e8; border-radius: 16px; padding: 20px; font-size: 13px; color: #52606d;\"\u003e\n    \u003cstrong\u003eAuSaMicS Life Science:\u003c\/strong\u003e Professional microbiology media for biochemical identification, food safety, clinical and industrial microbiology, research, and routine laboratory workflows. Product information is provided for laboratory and technical evaluation purposes only.\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cstyle\u003e\n@media (max-width: 860px) {\n  .aus-hero-grid, .aus-main-grid {\n    grid-template-columns: 1fr !important;\n  }\n  .aus-guarantee {\n    min-width: 100% !important;\n  }\n}\n\u003c\/style\u003e","brand":"Ausamics Life Science","offers":[{"title":"100 g","offer_id":48389561319679,"sku":"AS-1278-100G","price":45.0,"currency_code":"AUD","in_stock":true},{"title":"500 g","offer_id":48389561352447,"sku":"AS-1278-500G","price":125.0,"currency_code":"AUD","in_stock":true},{"title":"1 kg","offer_id":48389561385215,"sku":"AS-1278-1KG","price":225.0,"currency_code":"AUD","in_stock":true},{"title":"5 kg","offer_id":48389561417983,"sku":"AS-1278-5KG","price":995.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0771\/1087\/0271\/files\/Lysine_Decarboxylase_Broth_LDB_Enterobacteriaceae_Detection.jpg?v=1775961107","url":"https:\/\/ausamics.com.au\/products\/lysine-decarboxylase-broth-ldb","provider":"AuSaMicS","version":"1.0","type":"link"}