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Published on:3rd August, 2012
Pharmacognosy Journal, 2012; 4(31):44-46
Original Article | doi:10.5530/pj.2012.31.8

Comparative in vitro antioxidant evaluation of different extracts of Camellia sinensis leaves from different geographical locations

Authors and affiliation (s):

Devendra Singh Chauhan1, Sanjib Bhattacharya2, Bandar AlDhubaib3 and KK Mueen Ahmed3*

1Al-Ameen College of Pharmacy, Hosur Road, Bangalore 560 027, India

2Bengal School of Technology, Delhi Road, Sugandha, Hooghly 712102, West Bengal, India

3Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Hassa, Saudi Arabia


The present study was conducted to assess and compare the in vitro antioxidant property of four different solvent extracts from Camellia sinensis (tea) leaves collected form five different geographical regions in India. All the extracts at two different concentrations (500 and 1000 |jg/ml) was tested for their in vitro free radical scavenging potential by 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical scavenging assay. All the test extracts were found to exhibit remarkable free radical scavenging or antioxidant effect. The tea sample form Kerala was found to be the most active. The differential effect was plausibly due to geographical variations in chemical constituents especially polyphenol contents of C. sinensis leaf.

Keywords:Camellia sinensis, antioxidant, polyphenols, leaf.


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