Parallel Study on Extraction Technology of Anthocyan from Purple Maize

With purple maize cob as the raw material,the extraction technology of anthocyan was studied by hot water extraction,direct acidolysis extraction,ultrasonic-assisted extraction and microwave-assisted extraction.Results showed that the yield of anthocyan by hot water extraction,direct acidolysis extraction,ultrasonic-assisted extraction and microwave-assisted extraction was 7.85%,12.17%,18.42%,16.78%,respectively.Compared with conventional extraction methods,ultrasonic-assisted extraction and microwave-assisted extraction had the advantages of saving energy,rapidity and high efficiency.