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Abstract

COMPARATIVE EVALUATION OF PHYTOCHEMICAL AND ANTIOXIDANT PROPERTIES IN GREEN AND PURPLE VARIETIES OF ZALEYA DECANDRA

Bunga. Thirupathi* S. Gangadhar Rao C.Venkateshwar

ABSTRACT

Phytochemical antioxidant properties in green and red varieties of Zaleya decandra, collected from local area of Hyderabad city were estimated. Concentration of secondary metabolite such as flavonoids (88.5), flavonols (176.3), anthocyanins (176.3), total carotenoids (7.43) was recorded higher in green as compared to red variety (73.25), (139.46), (4.31) (4.17) μg/g Dt.wt. However proanthocyanidins, phenols was recorded maximum in red varieties (67.91),(230.66), as compared to green variety (63.58),(135.66) μg/g Dt.wt. β carotene 6.13,6.06 mg/g Fr.wt in green and red varieties respectively, ascorbic acid content was same in both varieties. Enzyme peroxidase, polyphenol oxidase, glutathione reductase showed higher activity in green variety with (731.05), (329), (12.11) units as compared to (539.5), (271.66), (9.05) units in red variety respectively. However catalase was recorded maximum in red variety (15.27) as compared to (11.06) units in green variety. ABTS and FRAP inhibition % between the two varieties did not differ much, however DPPH inhibition % was slightly higher in red variety.

Keywords: Antioxidants, secondary metabolites, antioxidant assays, phytochemicals, Zaleya decandra, red and green varieties.


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