hemicellulose(redirected from cellulosan)
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a food fiber composed of various sugars, including xylose, glucose, and mannose. Hemicelluloses absorb and retain water in the gut but have little effect on stool size, and are largely digested by gastrointestinal bacteria.
Plant cell-wall polysaccharides closely associated with cellulose, for example, xylans, mannans, and galactans.
Any of several branched polysaccharides that are composed of a variety of different monosaccharides and form a matrix with cellulose and lignin or pectin in plant cell walls. It is produced commercially from corn fiber.
Etymology: Gk, hemi + L, cellula, little cell
any of a group of polysaccharides that constitute the chief part of the skeletal substances of the cell walls of plants. They resemble cellulose but are soluble and more easily extracted and decomposed. See also dietary fiber.
An indigestible carbohydrate similar to cellulose, found in a plant's water-absorbing outer layer.
hemicellulosea polysaccharide associated with cellulose and LIGNIN, found in plant cell walls.
structural polysaccharide of plants. Consists of β1,4-linked pentose sugars, mainly xylose.