REMOVAL OF TANNINS AND IMPROVEMENT OF INVITRO PROTEIN DIGESTIBILITY OF SORGHUM SEEDS BY SOAKING IN ALKALI

被引:67
作者
CHAVAN, JK [1 ]
KADAM, SS [1 ]
GHONSIKAR, CP [1 ]
SALUNKHE, DK [1 ]
机构
[1] UTAH STATE UNIV,DEPT NUTR & FOOD SCI,LOGAN,UT 84322
关键词
D O I
10.1111/j.1365-2621.1979.tb06429.x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Soaking of sorghum seeds at 30° C in 0.05M sodium hydroxide and potassium hydroxide removed 75–85% of the tannins in 24 hr. Treatment at 100°C increased the rate of extraction and reduced the time required to leach 75–85% tannins from 24 hr to 20 min. Under similar conditions, 0.05M sodium carbonate removed 77% whereas soaking in distilled water removed only 30%. Dry matter loss due to the treatments with alkaline reagents ranged from 1.2–2.3%. Extraction of tannins in 0.05M alkaline solution at 100° C for 20 min improved in vitro protein digestibility of high tannin seeds 2˜5 fold as compared to untreated seeds. Copyright © 1979, Wiley Blackwell. All rights reserved
引用
收藏
页码:1319 / 1321
页数:3
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