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Composition of Dietary Fiber: Neutral and Acidic Sugar Composition of the Alcohol Insoluble Residue from Human Foods
Author(s) -
BITTNER ALLAN S.,
BURRITT ELIZABETH A.,
MOSER JANET,
STREET JOSEPH C.
Publication year - 1982
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.1365-2621.1982.tb04963.x
Subject(s) - hemicellulose , chemistry , xylose , pectin , sugar , arabinose , polysaccharide , uronic acid , cellulose , food science , starch , hydrolysis , residue (chemistry) , carbohydrate , galactose , alcohol , acid hydrolysis , composition (language) , biochemistry , fermentation , linguistics , philosophy
The alcohol insoluble residue (AIR) isolated from 12 foods was acid hydrolyzed and analyzed for neutral and acidic sugars. Aliquots taken at 1 hr were reduced, acetylated and analyzed for neutral sugar content with GLC. Glucose from cellulose, starch and non‐cellulosic polysaccharides was analyzed with colorimetric methods. The predominant sugars present in the dietary fiber were arabinose, xylose, galactose, glucose and uronic acids. Pectin and hemicellulose together comprised the majority of cell wall polysaccharides. Samples high in starch generally contained the greatest amounts of dietary fiber and the least amount of water on a fresh plant basis.