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Isolation and Characterization of Hemicellulose and Cellulose from Sugar Beet Pulp
Author(s) -
WEN L.F.,
CHANG K.C.,
BROWN G.,
GALLAHER D.D.
Publication year - 1988
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1988.tb08963.x
Subject(s) - hemicellulose , cellulose , chemistry , pulp (tooth) , extraction (chemistry) , monosaccharide , sugar beet , sugar , polysaccharide , chromatography , food science , pulp and paper industry , biochemistry , agronomy , biology , medicine , pathology , engineering
Various conditions for the extraction of hemicellulose and cellulose from sugar beet pulp were examined, including pulp particle size, temperature of EDTA extraction, temperature and concentration of alkaline extraction, and delignification time. A procedure using 60 mesh pulp, 85°C EDTA extraction of pectins, 10% NaOH extraction at 25°C followed by one hour delignification gave the highest yields. Molecular weights of hemicellulose ranged from 40,000 to 150,000 daltons for the A form and 10,000 to 150,000 daltons for the B form. The monosaccharide composition of hemicellulose A and B differed significantly. Hemicellulose B had the highest water‐holding capacity followed by hemicellulose A and cellulose. Viscosity of the hemicelluloses was very low.