ABSTRACT

The present investigation aims at the comparative antibacterial activity of fresh first leaves of green tea with the commercially available two different forms of tea- granular form and dust form and also green leaf tea. The fresh first green tea leaves collected from the Western Ghats region, commercial green tea, Tea dust and Tea granules were collected from the super market. All forms of tea were processed and their aqueous extractions were prepared. The antibacterial activity of each of the tea extracts were assayed Escherichia coli MTCC 439 by agar gel diffusion inhibition technique at 10 mg/100 mL concentration. The fresh first leaves of green tea showed highest zone of inhibition (15 mm diameter) in comparison to commercial green tea (12 mm diameter), granular tea (08 mm diameter) and dust tea (06 mm diameter) respectively. Like a black tea, fresh green tea also effective in inhibiting the growth of bacteria responsible for causing the intestinal diarrhoea such as E.coli. Keywords: Antibacterial Activity, Escherichia coli, Camellia sinensis, Aqueoustea extracts, Zone of inhibition
Publication date: 01/12/2020

https://ijbpas.com/pdf/2020/December/MS_IJBPAS_2020_5306.pdf

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https://doi.org/10.31032/IJBPAS/2020/9.12.5306