pentosan

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pentosan

[′pen·tə‚san]
(biochemistry)
A hemicellulose present in cereal, straws, brans, and other woody plant tissues; yields five-carbon-atom sugars.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Bushuk, "Comparison of the structure and composition of wheat-soluble pentosans from different wheat varieties," Cereal Chemistry, vol.
Impact of a fraction containing water-soluble pentosans and proteins on gluten starch loaf volumes," Cereal Chemistry, vol.
Researchers have shown that adding brown rice flour to formulations of bread results in a decrease in staling rate due to enhancement of fat and fiber (pentosan) contents (Wang, 2003).
The compositional analysis of raw sample revealed that the biomass contains cellulose (308.03 [+ or -] 0.6mg/g); pentosans (164.45 [+ or -] 0.2mg/g), and klason lignin (181.28 [+ or -] 1.0mg/g).
For the WSB, it was observed that the longer storage time led to decreases of the pH, the pentosans, and holocellulose contents and increases of the klason lignin, alkali solubility, and solvent extractives, which plays a large part in the reduction of the fiber's quality.
Study of amylase ratio in starch, total pentosans and protein content in advanced lines of hexaploid wheat, book of abstracts.
The carbon compounds found in fibrous bulk ingredients include cellulose, lignin, hemicelluloses and pentosans. These are the main, but not the only, carbon sources for energy nutrition of the mushroom.
This is necessary due to the high level of fibers naturally present in the kernel of rye, as well as the presence of a larger amount of pentosans, which attract and retain a lot of water.
The purpose of pretreatment of the woodchips is to remove pentosans and lignin which adversely affect the ensuring acid hydrolysis and fermentation steps.
The chemical characteristics of the poplar, pine and acacia bark extracts Characteristic Poplar Pine Acacia extract extract extract Appearance brown brown Brown liquid liquid liquid pH- value 4.90 4.72 3.80 Solids, % 45.00 38.50 40.50 Viscosity at 72.50 75.30 69.20 20[degrees]C, cP Cellulose, % 29.35 31.85 26.80 Lignin, % 33.55 34.80 36.75 Pentosans 20.20 12.55 18.25 Tab.