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常见加工食品组分，在某些情况下，精确 的数值很重要，如“无乳糖”产品
The Lactose/Galactose (Rapid) test kit is used for the rapid test of lactose, D-galactose and L-arabinose in food and plant products. Galactose dehydrogenase can be used the measurement and analysis of both D-galactose and L-arabinose. Suitable for the analysis of lactose in “low-lactose” or “lactose-free” samples which contain high levels of monosaccharides.
UV-method for the determination of Lactose and D-Galactose in
foodstuffs, beverages and other materials
Principle:
(β-galactosidase)
(1) Lactose + H2O → β-D-galactose + D-glucose
(galactose mutarotase)
(2) α-D-Galactose ↔ β-D-galactose
(β-galactose dehydrogenase)
(3) β-D-Galactose + NAD+ → D-galactonic acid + NADH + H+
Kit size: 115 assays
Method: Spectrophotometric at 340 nm
Reaction time: ~ 15 min
Detection limit: 2.96 mg/L (lactose)
Application examples:
Milk, dairy products (e.g. cream, milk / whey powder, cheese,
condensed milk and yogurt), foods containing milk (e.g. dietetic foods,
bakery products, baby food, chocolate, sweets and ice-cream), food
additives, feed, cosmetics, pharmaceuticals and other materials
(e.g. biological cultures, samples, etc.)
Method recognition:
Methods based on this principle have been accepted by AOAC, NBN,
DIN, GOST and IDF
Advantages 反应快（室温，5 min),试剂稳定
- Very rapid reaction due to inclusion of galactose mutarotase (patented technology PCT / IE2004 / 00170)
- Very competitive price (cost per test)
- 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