CARBOHYDRATE-COMPOSITION OF SOYBEAN FLOURS, PROTEIN-CONCENTRATES, AND ISOLATES

被引:49
作者
ELDRIDGE, AC
BLACK, LT
WOLF, WJ
机构
[1] Northern Regional Research Center, Agricultural Research, Science and Education Administration, U.S. Department of Agriculture, Peoria
关键词
D O I
10.1021/jf60224a056
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
Total carbohydrate content and the amounts of each sugar present in commercial samples of soybean protein products were determined by hydrolysis and gas-liquid chromatography of the alditol acetate derivatives of the sugars. Dehulled, defatted soybean flours contained the following mean sugar content: rhamnose, 0.6%; fucose, 0.1%; ribose, 0.1%; arabinose, 2.4%; xylose, 1.0%; pinitol, 0.9%; mannose, 0.9%; galactose, 7.6%; and glucose, 8.1%. The same sugars were found in soybean protein concentrates; however, the amount of each was less. Soybean protein isolates contained mannose, 0.8%; galactose, 0.5%; and glucose, 0.5%, with traces of the other five sugars. © 1979, American Chemical Society. All rights reserved.
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页码:799 / 802
页数:4
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