Comparative studies of free radicals scavenging activity of Clitoria ternatea L. Extract
Herbal medicine has gained global significance in terms of its medicinal and economic value.
The present research has aims to comparative study of scavenging activity of DPPH, ABTs,
FRAP and Superoxide anions of ethanolic extract of root, leaf, flower and seed tissue of
Clitoria ternatea plant at five distinct concentrations such as 0.2, 0.4, 0.6, 0.8 and 1.0 mg/ml,
respectively against positive control. The result shows that the increased concentration of the
extract with increased the mean value for all parts and all selected antioxidants. The DPPH,
ABTs, FRAP and superoxide activity were exhibits maximum scavenging activity at the
highest concentration i.e. 1mg/ml. The flower showed the maximum scavenging activity of
all four selected antioxidants activity than leaf, root and seed at 1mg/ml concentrations. And
their inhibition percentage recorded highest for superoxide was 97.56% followed by seeds
(90.23%), leaf (85.76%) and root (72.37%). The maximum potency of scavenging activity
was found in superoxide antioxidants followed by ABTs, DPPH and FRAP for flower.
Overall, the findings of result concluded that flower has highest scavenging activity than
other parts of the Clitoria ternatea. Presence of bioactive compounds as antioxidants revealed
that C. ternatea could be used in the pharmacological industry.