Study on the extraction technology and stability of anthocyanin from cayratica jeponicae

The optimal extraction technology of anthocyanin from Cayratica jeponicae was studied.The single factors such as the ethanol concentration, the extracting temperature, and time and the ratio of material/liquid were evaluated, based on which, the orthogonal array experimental results were analyzed.Ethanol concentration of 40%, material/liquid ratio of 1:30, the extraction temperature of 70℃, extraction duration of 120min were found optimal.Under the optimal conditions the extract obtained was 0.397mg/g.The scientific basis for the rational development of C.jeponicae was provided.