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[Studies on tannin and hydrolysate in three species of Chinese Caesalpinia plants]
Abstract
Objective:
To get Chinese Caesalpinia plants that can replace the imported Tara to produce tannin and gallic acid.
Method:
Extract tannin with water, condense and hydrolyze the extracts with alkali, the hydrolysates were identified. Furthermore, an enlarged scale experiment was conducted.
Result:
Tannin contents of the plants were 32.2%, 46.6% and 58.5% respectively, the converted ratios of raw material to hydrolysate were 154:1, 11.8:1, 3.09-2.79:1 respectively.
Conclusion:
We got the Tara-replacing plants in Chinese Caesalpinia plants for the first time.
