QUALITATIVE ANALYSIS AND ANTIOXIDANT POTENTIAL OF VANDA ROXBURGHII R.BR. KANYAKUMARI, SOUTH INDIA
R. Mary Subin*, Dr. B. Christudhas Williams and Dr. R. Mary Suja
ABSTRACT
Vanda roxburghii R.Br. is a potent medicinal epiphytic orchid used in the Indian system of medicine. Benzene
extract of Vanda roxburghii R.Br. leaf showed the presence of terpenoid, flavonoid, alkaloid, saponin, tannin and
steroid; ethanol extract showed the presence of terpenoid, flavonoid, alkaloid, tannin and steroid; acetone extract
showed the presence of terpenoid, alkaloid, tannin, steroid and chloroform extract showed the presence of
flavonoid, reducing sugar, alkaloid and steroid. DPPH radical scavenging activity of Vanda roxburghii R.Br. leaf
extracts varied from 17.98 % ± 0.570 (20μl) of chloroform extract to 61.91% ± 1.196 (100μl) of ethanol extract
and hydroxyl radical scavenging activity of Vanda roxburghii R.Br. leaf extracts varied from 11.98 % ± 0.789
(100μl) of chloroform extract to 58.5 % ± 0.475 (500μl) of ethanol extract highlight the medicinal importance of
the sampling plant.
Keywords: Orchid, Vanda roxburghii, Phytochemicals, antioxidant.
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