TOTAL PHENOLICS, FLAVONOIDS AND ANTIOXIDANT EVALUATION IN THE LEAVES ERIA ALBA
Darshan Singh*, Satish C. Sati and Maneesha D. Sati
Eria alba (Orchidaceae) belongs to the tribe coelogyneae, It contain about 375 species in tropical Asia,Polynesia and Australia.50 species are found in india.Commonly found througout the Himalayan region at the altitude of 2200-3000m. Most plants of the genus Eria found in India grow as epiphytes. Some are also found growing on moist, moss covered rock structures on large, hilly slopes The determination of these characters will help further researches in their phytochemical as well as pharmacological analyses of this species. Total phenolics, flavonoids contents and antioxidant capacity were evaluated according to standard procedures. The results of this study showed that the water extract of A. nervosa leaf has significant amount of total phenolic (102.8 ± 0.12 mg GAE/g) and flavonoid contents (66.10 ± 0.29 mg RE/g) whereas total antioxidant capacity was found 1.08 ± 0.12 mg GAE/g when compared with gallic acid as standard. Hence, it is concluded that the E.alba leaf extract contain remarkable amount of total phenolic and flavonoid content can be used as a powerful herbal antioxidant.
Keywords: Eria alba, Orchidaceae, Total antioxidant capacity, phytochemicals.
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