TITLE:
Antioxidant Activity and Phytochemical Screening of Crude Endophytes Extracts of Tabebuia argentea Bur. & K. Sch.
AUTHORS:
M. Govindappa, R. Channabasava, K. R. Sunil Kumar, K. C. Pushpalatha
KEYWORDS:
Tabebuia argentea; Endophytes; Antioxidant Activity; Phytochemicals
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.4 No.8,
August
5,
2013
ABSTRACT:
The aim of
this study is to investigate in vitro antioxidant activities and the phytochemical screening endophytes. Seven
different endophytic fungi were isolated from different parts of the plant and
their extracts subjected to know antioxidant properties and
phytochemical screening. Phytochemical analysis revealed the presence of
tannins, flavonoids, steroids, alkaloids, phenols and proteins from different
solvents extracts of different endophytes. The antioxidant activity
was evaluated by six separated methods: scavenging of free radical DPPH, FRAP,
TBA, superoxide radical, FTC and iron methods. All seven different endophytes
yielded almost all phytochemicals in methanol extracts which were tested.
The endophytes A. niger, Penicillium sp. and Trichoderma sp.
have shown potential in vitro antioxidant activities. Further work is needful to isolate the
exact compound which is responsible for antioxidant activity and biophysical
characterization will be done in the future.