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发布网友发布时间：2022-02-24 10:59

共3个回答

热心网友时间：2022-02-24 12:28

Abstract this paper mainly studies the violet cabbage pigment extraction and purification, with fresh purple cabbage leaf Weiyuan material on the extraction of purple cabbage pigment and purification conditions were optimized. Extraction to extract the anthocyanin with conventional solvents, using macroporous resin adsorption method for extracting pigment purification. In this paper, to optimize the extraction process of red cabbage pigment, the extraction ratio of material to liquid was 1: 50, temperature 60 ℃, ethanol concentration is 60%, extraction time 60 min, pH was 1, the best extraction effect. In order to get the high content of anthocyanins, better quality procts, through the study of screening and the adsorption performance of macroporous adsorption resin, purification of the extract. Through

热心网友时间：2022-02-24 13:46

抱歉 ………………

热心网友时间：2022-02-24 15:21

海底可没，
这些可，按时看见了，