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Hasil cari dari kata atau frase: lactose(0.02134 detik)
Found 2 items, similar to lactose.
English → English (WordNet)
n : a sugar comprising one glucose molecule linked to a
galactose molecule; occurs only in milk; "cow's milk
contains about 4.7% lactose" [syn: milk sugar]
English → English (gcide)
Galactose \Ga*lac"tose\, n. (Chem.)
A white, crystalline sugar, C6H12O6, isomeric with
dextrose, obtained by the decomposition of milk sugar, and
also from certain gums. When oxidized it forms mucic acid.
Called also lactose (though it is not lactose proper).
lactose \lac"tose`\ (l[a^]k"t[=o]s`), n.
1. (Physiol. Chem.) The main sugar present in milk, called
also sugar of milk or milk sugar. When isolated pure
it is obtained crystalline; it is separable from the whey
by evaporation and crystallization. It is a disaccharide
with the formula C12H22O11, being chemically
4-([beta]-D-galactosido)-D-glucose. It has a slightly
sweet taste, is dextrorotary, and is much less soluble in
water than either cane sugar or glucose. Formerly called
lactin. When hydrolyzed it yields glucose and galactose.
In cells it may be hydrolyzed by the enzyme
[1913 Webster +PJC]
2. (Chem.) See Galactose.