| slovo | definícia |
lactose
(encz) | lactose,laktóza n: Zdeněk Brož |
lactose
(encz) | lactose,mléčný cukr Zdeněk Brož |
lactose
(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).
[1913 Webster] |
lactose
(gcide) | 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
[beta]-galactosidase.
[1913 Webster +PJC]
2. (Chem.) See Galactose.
[1913 Webster] |
lactose
(wn) | lactose
n 1: a sugar comprising one glucose molecule linked to a
galactose molecule; occurs only in milk; "cow's milk
contains about 4.7% lactose" [syn: lactose, milk sugar] |
| | podobné slovo | definícia |
galactose
(encz) | galactose,galaktóza n: Zdeněk Brož |
galactosemia
(encz) | galactosemia, n: |
lactose
(encz) | lactose,laktóza n: Zdeněk Brožlactose,mléčný cukr Zdeněk Brož |
lactose intolerance
(encz) | lactose intolerance, n: |
Galactose
(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).
[1913 Webster] |
lactose
(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).
[1913 Webster]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
[beta]-galactosidase.
[1913 Webster +PJC]
2. (Chem.) See Galactose.
[1913 Webster] |
lactose intolerance
(gcide) | lactose intolerance \lac"tose` in*tol"er*ance\ (l[a^]k"t[=o]s`
[i^]n*t[o^]l"[~e]r*ans), n.
A physiological condition in which lactose cannot be
hydrolyzed in the intestine, leading to uncomfortable
gaseousness, cramps, or diarrhea after eating a
lactose-containing food such as milk or ice cream. The
symptoms may be prevented by ingesting a preparation of
beta-galactosidase before or together with dairy products.
[PJC] |
galactose
(wn) | galactose
n 1: a simple sugar found in lactose [syn: galactose, {brain
sugar}] |
galactosemia
(wn) | galactosemia
n 1: a genetic disease (autosomal recessive) in which an enzyme
needed to metabolize galactose is deficient or absent;
typically develops shortly after birth |
lactose
(wn) | lactose
n 1: a sugar comprising one glucose molecule linked to a
galactose molecule; occurs only in milk; "cow's milk
contains about 4.7% lactose" [syn: lactose, milk sugar] |
lactose intolerance
(wn) | lactose intolerance
n 1: congenital disorder consisting of an inability to digest
milk and milk products; absence or deficiency of lactase
results in an inability to hydrolyze lactose [syn: {lactose
intolerance}, lactase deficiency, milk intolerance] |
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