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Total phenolic content, antioxidant and antimicrobial activity of Talinum cuneifolium (Vahl.) from Dibrugarh, N.E. India

Sristisri Upadhyaya, Junali Chetia, Diganta Kumar Bora, Lakhi Ram Saikia


The present study was an attempt to evaluate the phytochemical constituents, antioxidant and antimicrobial activity of the plant Talinum cuneifolium. The total phenol & flavonoid content and anti-oxidant activity of the extracts were spectrophotometrically determined; catechol, quercetin and ascorbic acid were taken as standard in case of total phenol & flavonoid content and anti-oxidant activity respectively. Determination of antimicrobial activity was followed by Agar well diffusion method. The study confirms the presence of tannins, phlobatannin, flavonoids, glycosides, cardiac glycosides, saponins, carotenoids, alkaloids, phenol and reducing sugars and absence of terpenoids, steroids and free anthraquinone in the sample. Both total phenol and flavonoid content, DPPH and ABTS radical scavenging activity were recorded highest in methanol extract. Hexane extract showed the maximum inhibition (12mm) against E. coli followed by P. vulgaris (10mm) and B. cereus (10mm).


Phytochemicals, antioxidant and antimicrobial activity.

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