hemicellulose


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Related to hemicellulose: pectin

hemicellulose

 [hem″e-sel´u-lōs]
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.

hem·i·cel·lu·lose

(hem'ē-sel'yū-lōs),
Plant cell-wall polysaccharides closely associated with cellulose, for example, xylans, mannans, and galactans.
Synonym(s): cellulosan

hemicellulose

(hĕm′ĭ-sĕl′yə-lōs′, -lōz′)
n.
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.

hemicellulose

[hem′ēsel′yoo͡lōs]
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.

hem·i·cel·lu·lose

(hem'ē-sel'yū-lōs)
An indigestible carbohydrate similar to cellulose, found in a plant's water-absorbing outer layer.

hemicellulose

a polysaccharide associated with cellulose and LIGNIN, found in plant cell walls.

hemicellulose

structural polysaccharide of plants. Consists of β1,4-linked pentose sugars, mainly xylose.
References in periodicals archive ?
In contrast with hemicellulose and cellulose responses, the lignin concentration increased after 1 year of decomposition, primarily for incorporated straw and the 21 Mg [ha.
Hemicelluloses: Grasses presented greater hemicellulose contents than forbs and shrubs in general (Table 5).
Mean content of neutral detergent fiber (NDF), acid detergent fiber (ADF), celulose (CEL), hemicellulose (HEM) and lignin (LIG).
Hemicellulose was estimated by subtracting the ADF value from the aNDF value.
The ratios of several characteristic peaks in the FTIR spectra were calculated to investigate the relative degradation rate of cellulose, hemicellulose, and lignin.
1] decreases the production of biomass and ethanol, although the concentration figure 1 displays the kinetics fermentation and evolution of secondary over HHG process of acetic acid, which is formed from degradation of hemicellulose, and was not considered as a limiting factor to fermentation.
Organosolv treatment yields three different parts: dry lignin, a watery hemicellulose stream and a moderately unadulterated cellulose division (Xuebinget.
The patented process delignifies the lignocellulosic biomass by dissolving lignin in organic solvent and converts most of the hemicellulose to biochemicals (such as furfural, butyl acetate, etc.
The hemicellulose content was obtained by the difference between the holocellulose content and cellulose.