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Process for the separation of gallated epicatechins (egcg & ecg) from green tea extract or green tea dust

从绿茶提取物或绿茶粉末中分离没食子表儿茶素(EGCG & ECG)的方法

关键词:
来源:
世界知识产权组织
类型:
相关专利
语种:
英语
原文发布日期:
2019-06-13
摘要:
The present invention relates to an improved process for the separation of gallated epicatechins (EGCG & ECG) from green tea extract or green tea dust. The present invention specifically relates to an improved process for the separation of gallated epicatechins (EGCG & ECG) from green tea extract or green tea dust by forming hydrated gallated epicatechins (EGCG & ECG)-isonicotinic acid complex using isonicotinic acid as acid, organic solvents for liberating gallated epicatechins. The present invention more specifically relates to the process for the separation of gallated epicatechins (EGCG & ECG) from green tea extract or green teadust, wherein processes comprises steps of dissolving, concentrating by centrifugation, adding, precipitating, filtering, slurrying, removing supernatant liquid, washing, extracting and freeze drying. The present invention also relates to hydrated gallated epicatechins (EGCG &ECG)-isonicotinic acid complex.
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