The estimation of the butter being accomplished, it is frequently needful to determine the amount of lactose present.
Control of casein or lactose, on the contrary, is not nearly so practicable.
These are all characteristic reactions of lactose or milk sugar.
Levulose, lactose, and some others are occasionally met with.
The carbohydrates, comprising 4.88% to 5% of the solids in milk, occur as lactose or milk sugar.
lactose exists in milk and has the same formula as cane-sugar.
Galactose occurs in the animal kingdom as one of the constituents of lactose, or milk-sugar.
There are many varieties of sugar in common use, viz.: cane sugar, grape sugar or glucose, and sugar of milk (lactose).
Dextrose, saccharose and lactose are the most used, though many others are used for special purposes.
The mass curdles and separates into a solid curd (proteid and fat) and a clear fluid (the whey), which contains the lactose.
lactose lac·tose (lāk'tōs')
A disaccharide in milk that hydrolyzes to yield glucose and galactose. Also called milk sugar.
A white crystalline substance obtained from whey and used in infant foods and in pharmaceuticals as a diluent and excipient. Also called milk sugar.