INVESTIGATION INTO BIOLOGICAL ACTIVITIES OF EXTRACT FROM BUTTERFLY PEA FLOWER (Clitoria ternatea)

Abstract

This study concentrated on determining some of those activities in order that the findings can be utilized in health security. The antioxidant, α-glucosidase inhibitory and antibacterial properties in these extracts were analyzed. As a result, the EtOH 96% extract exhibited the highest DPPH free radical scavenging capacity with an IC50 value of 256.99 µg/mL; while the EtOH 50% extract showed the highest ABTS free radical scavenging capacity with IC50 of 598.78 µg/mL. All three extracts exhibited low levels of α-glucosidase inhibition. The determination of antibacterial ability indicated that EtOH 50% extract at a concentration of 500 µg/mL showed the high antibacterial ability with the inhibited zone of Pseudomonas aeruginosa ATCC 25922 reaching 19.3 mm in diameter, and this of Bacillus cereus ATCC 11778 was 15 mm in diameter. These results would pave the way for further studies of applying butterfly pea flowers to health care