STUDYING MAKING SOME SOLUBE POWDERS OF RICH ANTHOCYANIN FROM THE BLUE PEA FLOWER (Clitoria ternatea) PLANTED IN BINH DUONG PROVINCE

Abstract

The blue pea flower (Clitoria ternatea) has a high content of anthocyanin that was considered as a powerful antioxydant preventing aging. The study tested some factors such as the ratio of flower, the concentration of ethanol, the temperature and time isolation to get the highest yeild of anthocyanin. Then, producing some the solube powder of rich anthocyanin to bring more convinient for users. The results showed the highest yeild of anthocyanin was 2.05mg/g dry flower when using the flower at a ratio of 0.75% (w/v), isolating with 40% ethanol at 80^oC for 60 minutes. The lyophilized powder and spray drying powder were stable in colour and anthocyanin concentration when preserved at 5^oC for 6 months.