PROCESS FOR EXTRACTING PLANT-DERIVED NATURAL PRODUCTS WITH POLARITY OR INTERMEDIATE POLARITY

摘要

A process for extracting plant-derived natural products with polarity or intermediate polarity is provided. Said process involves the following steps: crushing the plant-derived materials containing natural products with polarity or intermediate polarity, adding water, and circularly introducing CO2 with high pressure into the extracting apparatus. During the extracting process, the temperature is 40-90?, the pressure is 5-50 MPa, and the treatment time with high pressure CO2 is 1-60 minutes. Said process can be used to extract polar natural products such as anthocyanins, or other natural products with polarity or intermediate polarity.