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Lactose [MB-L6281]
Lactose for bacteriological use.
PACKAGE
Description
Quantity
Cat. No
Lactose
500g
MB-L6281
Lactose
1kg
MB-L6281-1kg
Lactose
5kg
MB-L6281-5kg
PHYSICO-CHEMICAL CHARACTERISTICS
Standard
DCI Name
Lactose
Ph. Eur. Name
Lactosum
IUPAC Name
Lactose
Solubility in water at 5%
Complete
Humidity
¡Â 0.10%
Specific Optical Rotation
+ 52.5
pH
4.3
Ash
¡Â 0.05%
INTERPRETATION
Lactose is used as a source of fermentable carbohydrates for bacteria in fermentation tests (i.e. Escherichia coli ferments lactose whilst Salmonella typhimurium gives a negative reaction). It is not hygroscopic and is free from other sugars and from starch, proteins and metals.
STORE
The powder is very hygroscopic. Store the powder at room temperature, in a dry environment, in its original container tightly closed and use it before the expiry date on the label or until signs of deterioration are evident.
54,000¿ø
104,000¿ø
12,000¿ø
9,000¿ø
19,000¿ø
79,000¿ø
72,000¿ø
74,000¿ø
37,000¿ø
122,000¿ø
37,000¿ø
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