L-谷氨酸检测试剂盒 英文名称: L-Glutamic Acid Assay Kit |
型号:null 产品货号: K-GLUT |
价格:请致电:010-57128832,18610462672 |
品牌: 爱尔兰 |
品牌: Megazyme 产品货号:K-GLUT 品牌:Megazyme 产品品名:L-谷氨酸检测试剂盒 英文品名:L-Glutamic Acid Assay Kit 规格型号:60 assays (manual) / 600 assays (microplate) / 700 assays (auto-analyser) A simple, reliable, rapid and accurate method for the determination ofL-glutamate (MSG) in foodstuffs. INTRODUCTION: L-Glutamic acid (L-glutamate), one of the 20 common amino acids, occurs naturally in foods such as cheese, milk, meat, fish, corn, tomatoes, mushrooms, soybean and sugar beet. In its free form, L-glutamic acid is the major flavour enhancing component of foods with a meaty/savoury taste. The role played by L-glutamic acid in the palatability of foods is exploited by either traditional cooking methods that release free L-glutamic acid, or by supplementation with monosodium glutamate (MSG). Excessive use of MSG as a food additive (E621) in processed foods results in the symptoms of “Chinese Restaurant Syndrome” (CRS), where palpitations, severe headaches, nausea, wheezing and increased body temperature are thought to result from the neuro-excitory properties of free L-glutamic acid. Onset of CRS is fast, only 30-60 min after ingestion, and symptoms generally subside after approximately 2-3 hours. Around 15% of Americans are sensitive to MSG. KITS: Kits suitable for performing 60 assays in manual format (or 700 assays in auto-analyser format or 600 assays in microplate format) are available from Megazyme. The kits contain the full assay method plus: Bottle 1: Buffer (35 mL, pH 8.6) plus sodium azide (0.02% w/v) as a preservative. Stable for > 2 years at 4°C. Bottle 2: (x2) NAD+ plus INT. Stable for > 2 years at 4°C. Bottle 3: Diaphorase suspension (3.1 mL). Stable for > 2 years at 4°C. Bottle 4: Glutamate dehydrogenase solution (3.1 mL). Stable for > 2 years at -20°C. Bottle 5: L-Glutamic acid standard solution (5 mL, 0.10 mg/mL) in 0.02% (w/v) sodium azide. Stable for > 2 years at 4°C. 温馨提示:需要详细的产品使用说明书,请联系甄准生物客服人员,我们将竭诚为您服务。 甄准,甄心倾听您每一个标准! |