galactose

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galactose

 [gah-lak´tōs]
a monosaccharide sugar of the aldose group, derived from lactose. d-galactose is found in lactose, in cerebrosides of the brain, in the sugar beet, and in many gums and seaweeds; l-galactose is found in flaxseed mucilage.
galactose tolerance test a laboratory test done to determine the liver's ability to convert the sugar galactose into glycogen. Two methods may be used. The oral method requires about 5 hours to complete, and the intravenous method, which is more accurate, requires about 2 hours. With the oral method, elimination of more than 3 g of galactose in the urine during a 5-hour period indicates liver damage. With the intravenous method, all galactose should have been eliminated from the blood 45 minutes after its injection.

ga·lac·tose (Gal),

(gă-lak'tōs),
An aldohexose found (in d form) as a constituent of compounds such as lactose, cerebrosides, gangliosides, and mucoproteins, in galactoside or galactosyl combination; an epimer of d-glucose.

galactose

(gə-lăk′tōs′)
n.
A monosaccharide, C6H12O6, commonly occurring in lactose and in certain pectins, gums, and mucilages.

ga·lac·tose

(Gal) (gă-lak'tōs)
An aldohexose found (in d form) as a constituent of lactose, cerebrosides, gangliosides, mucoproteins, in galactoside or galactosyl combination; an epimer of d-glucose.

galactose

A monosaccharide sugar that is a constituent of LACTOSE, the main sugar of milk. Also known as cerebrose.

galactose

a monosaccharide CARBOHYDRATE that does not occur freely in nature, but is combined with GLUCOSE to form LACTOSE, a disaccharide sugar found in milk.

Galactose

One of the two simple sugars, together with glucose, that makes up the protein, lactose, found in milk. Galactose can be toxic in high levels.

ga·lac·tose

(Gal) (gă-lak'tōs)
An aldohexose constituent of lactose, cerebrosides, gangliosides, and mucoproteins.
References in periodicals archive ?
Structure, biology, evolution, and medical importance of sulfated fucans and galactans. Glycobiology, 18(12), 1016-1027.
The lack of typical signals for galactans in the current study would reinforce the previous [[delta].sub.H] NMR results due to diverse unresolved peaks variable intensity presenting among the analyzed samples (Figures 1A, B and C).
A Modified System of Nomenclature for Red Algal Galactans. Bot Mar 1994; 37.
Structure and anticoagulant activity of a sulfated galactan from the red alga, Gelidium crinale.
Lowary of the University of Alberta in Edmonton and his coworkers are looking for inhibitors of the enzymes that assemble galactans for the middle layer of the cell wall when the microbe replicates.
Together, these suggest that most of the variation in PC1 was due to variations in rhamnose and galactans within rhamnogalacturonans.
For example, structural studies on sulfated polysaccharides and galactans of algae using [sup.13]C-NMR techniques showed that diverse -S[O.sub.4] bondings contribute to the signals in the O-alkyl region (Kjellberg et al.
Carrageenan are sulfated galactans comprised of the monomers D-galactose and 3,6-anhydro-D-galactose linked together by [beta]-1,4 and [alpha]-1,3 bonds.
Carbohydrates such as cellulose and floridean starch are present in cells; however, other complex polysaccharides accumulate in brown seaweed (alginate, laminarin and fucoidan), red seaweed (galactans) and green seaweed (ulvan).
* Oligosaccharides = Fructans in wheat, onions, and garlic; galactans in legumes (beans)