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Antibacterial and antioxidant activities of ethanol extracts from trans Himalayan medicinal plants
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Published on:11/2010
Pharmacognosy Journal, 2010; 2(17):66-69
Research Article | doi:10.1016/S0975-3575(10)80013-6

Antibacterial and antioxidant activities of ethanol extracts from trans Himalayan medicinal plants


Authors and affiliation (s):

Phani Kumar G1*, Raj Kumar1, Rupesh Badere2 and Shashi Bala Singh1

1Defence Institute of High Altitude Research (DIHAR) Defence R & D Organisation Ministry of Defence Govt. of India, C/o 56 APO, Leh-Ladakh, India 2RTM Nagpur University, Nagpur, India

Abstract:

The antibacterial and antioxidant activity of the ethanol extracts from some trans Himalayan medicinal plants being used in ‘Amchi system of medicine’. These plants were assessed towards selected bacteria as well as in different antioxidant models. Extracts, at concentration between 8 and 250 μg/ml, showed a significant antibacterial effect expressed as minimum inhibition concentration (MIC) against both Gram-negative and Gram-positive bacteria. In particular, samples of Podophyllum hexandrum leaf, Verbascum thapsus stem against Bacillus subtilis and Salvia sclarea flower against Pseudomonas aeruginosa (MIC = 8 μg/ml) were highly effective. The antioxidant activity was determined by the 2,2- diphenyl -1 picryl hydrazyl (DPPH) method, Ephedra gerardiana leaf (13.30 + 0.6 μg/ml) and Salvia sclarea flower (14.97 + 2.9 μg/ml) were observed with maximum activity. Conclusion of the study supports the use of these plants in traditional medicine to treat various ailments like stomach complaints, wound infections and intestinal disorders etc.

Key words: Antibacterial activity; Anti-oxidant activity; Ethnopharmacology; trans-Himalaya; Amchi system of medicine; Cold desert medicinal plants.

 

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