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galactose
Organic compound, a monosaccharide, chemical formula C6H12O6. It is usually found in nature combined with other sugars, for example, in lactose, in polysaccharides, and in glycolipids, carbohydrate-containing lipids that occur in the brain and other nervous tissues of most animals. It has uses in organic synthesis and in medicine.
galactose [gə′lak‚tōs]
Galactose
A monosaccharide and a constituent of oligosaccharides, notably lactose, melibiose, raffinose, and stachyose. It is also known as d -galactose and cerebrose (see illustration). Agar, gum arabic, mesquite gum, larch arabo galactan, and a variety of other gums and mucilages contain d -galactose. See Agar, Monosaccharide
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l -Galactose (enantiomorph of d -galactose) occurs in several polysaccharides, including agar, flaxseed mucilage, snail galactogen, and chagual gum. Since d -galactose is usually also present, hydrolysis of these polysaccharides produces dl -galactose. See Carbohydrate
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