MegazymeL-天门冬素[天冬酰胺酸]/L-谷氨酸/氨检测试剂盒
上海金畔生物科技有限公司
品牌：Megazyme

英文名：L-Asparagine/L-Glutamine/ Ammonia

货号：K-ASNAM

规格：100 Assays (50 of each)

分析物意义：  炸、烘、烤土豆或其他食品中的丙烯酰胺的前提

Megazyme检测试剂盒优点：产品新颖，不到20分钟可以检测3种组分。可用于手工或酶标仪自动检测。

The L-Asparagine/L-Glutamine/Ammonia test kit is a novel method for the specific, convenient, cost effective and rapid measurement and analysis of L-asparagine, L-glutamine and ammonia as acrylamide precursors in the food industry, or as cell culture media/supernatant components, or in other materials.

Extended cofactors stability. Dissolved cofactors stable for > 1 year at 4^oC.

UV-method for the determination of L-Asparagine, L-Glutamine 
and Ammonia in potatoes, foodstuffs and cell culture media

Principle:
                               (glutaminase)
(1) L-Glutamine + H₂O → L-glutamate + NH₄⁺

                             (microbial glutamate dehydrogenase)
(2) NH₄⁺ + 2-oxoglutarate + NADPH → L-glutamate + NADP⁺ + H₂O

                                (asparaginase)
(3) L-Asparagine + H₂O → L-aspartate + NH₄⁺

Kit size:                              50 assays of each
Method:                              Spectrophotometric at 340 nm
Reaction time:                    ~ 20 min
Detection limit:                   0.50 mg/L (L-asparagine)
                                           0.54 mg/L (L-glutamine)
                                           0.06 mg/L (ammonia)
Application examples: 
Potatoes, potato products, vegetables, cereals and other materials
(e.g. biological cultures, samples, etc.)
Method recognition:            Novel method 

Advantages

• Very rapid reaction due to use of uninhibited glutamate dehydrogenase
   
• All enzymes supplied as stabilised suspensions
   
• Only kit available
   
• Very cost effective
   
• All reagents stable for > 2 years after preparation
   
• Mega-Calc™ software tool is available from our website for hassle-free raw data processing
   
• Standard included

•  件

Megazyme产品所有分类：
生物及食品酶法试剂盒(Assay Kits)
膳食纤维/淀粉(Dietary Fiber/Starch) 单/双糖(Mono/Disaccharides) 多糖(Polysaccharides) 醇类(Alcohols) 有机酸(Organic Acids) 亚硫酸盐/氮(Sulfite/Nitrogen) 活性酶(Enzyme Activity) 试剂混合物(Reagent Mixtures) 其它(Other)
酶(Enzymes)
活性酶(Carbohydrate Active enZYmes )
淀粉酶(Amylases )
阿拉伯树胶酸(Arabinanases)
阿拉伯呋喃(Arabinofuranosidases)
纤维二糖水解(Cellobiohydrolases)
纤维素酶(Cellulases)
酯酶(Esterases)
果糖酶＆果糖苷酶(Fructanases & Fructosidases)
岩藻糖苷酶(Fucosidases)
半乳聚糖酶(Galactanases)
半乳糖苷酶(Galactosidases)
葡聚糖酶(Glucanases)
葡萄糖苷酶(Glucosidases)
葡糖醛酸糖苷(Glucuronidases)
已糖胺酶类(Hexosaminidiases)
裂解酶(Lyases)
甘露聚糖酶(Mannanases)
甘露糖苷酶(Mannosidases)
支链淀粉酶(Pullulanases)
唾液酸酶(Sialidases)
木聚糖酶(Xylanases)
糖苷酶(Xylosidases)
木葡聚糖酶(Xyloglucanases)
多聚半乳糖醛酸(内切)酶(Polygalacturonases)
其它酶(Other Activities)
分析酶(Analytical Enzymes)
脱氢酶(Dehydrogenases)
异构酶(Isomerases)
激酶(Kinases)
磷酸酶(Phosphatases)
蛋白酶(Proteases)
其他活性酶(Other Activities)
糖类活性酶(Glycobiology Enzymes)
酶底物( Chromogenic Substra