The D-Malic Acid assay kit is suitable for the specific measurement and analysis of D-malic acid (D-malate) in beverages and food products.
Extended cofactors stability. Dissolved cofactors stable for > 1 year at 4oC.
Suitable for manual, auto-analyser and microplate formats.

UV-method for the determination of D-Malic Acid in foodstuffs,
beverages and other materials

Principle:
(D-malate dehydrogenase)
(1) D-Malic acid + NAD⁺ → pyruvate + CO₂ + NADH + H⁺

Kit size:  100 assays (manual) / 1000 (microplate) 
 / 1100 (auto-analyser)
Method:  Spectrophotometric at 340 nm
Reaction time:  ~ 6 min
Detection limit:  0.26 mg/L
Application examples: 
Wine, beer, fruit juices, soft drinks, dietetic foods, candies, fruit and 
vegetables, cosmetics, pharmaceuticals and other materials 
(e.g. biological cultures, samples, etc.)
Method recognition: 
Methods based on this principle have been accepted by EEC, EN,
DIN, OIV, IFU, and AIJN

Advantages

• No wasted D-malate dehydrogenase solution (stable suspension supplied)
  
• Very competitive price (cost per test)
  
• All reagents stable for > 2 years after preparation
  
• Rapid reaction (even with difficult samples)
  
• Mega-Calc™ software tool is available from our website for hassle-free raw data processing
  
• Standard included
  
• Extended cofactors stability
  
• Suitable for manual, microplate and auto-analyser formats

Megazyme D-苹果酸检测试剂盒操作视频（K-DMAL）

Megazyme 溶解淀粉 操作视频

Megazyme 试剂盒样品前处理准备操作视频

An enzymatic procedure for the measurement of 1,3:1,6-β-glucan in yeast. Also measures 1,3-β-glucan. Content:40 assays per kit

酵母葡聚糖酶检测试剂盒

UV-method for the determination of Ammonia in foodstuffs,
beverages and other materials

Principle:
(microbial glutamate dehydrogenase)
(1) 2-Oxoglutarate + NADPH + NH₄⁺ → L-glutamic acid + NADP⁺
+ H₂O

Kit size:  96 assays (manual) / 960 (microplate)
 / 960 (auto-analyser)
Method:  Spectrophotometric at 340 nm
Reaction time:  ~ 3 min
Detection limit:  0.07 mg/L
Application examples: 
Grape juice, wine, fruit juices, soft drinks, dairy products (e.g. milk),
dietetic food, soy sauce, eggs and egg products, cheese, meat,
processed meat, seafood, bakery products (and baking agents),
fertilisers, pharmaceuticals, tobacco, cosmetics, water, Kjeldahl
analysis, paper (and cardboard), water and other materials
(e.g. biological cultures, samples, etc.)
Method recognition: 
Methods based on this principle have been accepted by MEBAK

Advantages

• Very rapid reaction due to use of uninhibited glutamate dehydrogenase
  
• Enzyme supplied as stabilised suspension
  
• Very competitive price (cost per test)
  
• All reagents stable for > 2 years as supplied
  
• Mega-Calc™ software tool is available from our website for hassle-free raw data processing
  
• Standard included
  
• Extended cofactors stability
  
• Suitable for manual, microplate and auto-analyser formats

Megazyme酵母葡聚糖酶检测试剂盒Enzymatic操作视频（K-EBHLG）

Megazyme 溶解淀粉 操作视频

Megazyme 试剂盒样品前处理准备操作视频