process for obtaining extracts rich in anthocyanins, from plant material and in particular from the skins of grapes (in particular

摘要

method for producing a colored dyes prepared from red vegetables, such as the anthocyanins, belonging to the class of antocianine.it includes the following steps: the treatment of extraction of husks of grapes with aqueous acid at temperatures not exceeding 45u00b0c.in the oxidizing atmosphere; separation of the liquid from the mass concentration of the liquid treated; vacuum separate temperature not exceeding 45u00b0c until the saturation solubility ofthe pigments and plant extract thus obtained.