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PERFORMANCE EVALUATION OF NATURAL HERBS FOR ANTIBACTERIAL ACTIVITY IN WATER PURIFICATION

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Author(s): SUNIL B. SOMANI | NITIN W. INGOLE | SHRIKANT S. PATIL

Journal: International Journal of Engineering Science and Technology
ISSN 0975-5462

Volume: 3;
Issue: 9;
Start page: 7170;
Date: 2011;
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Keywords: Antibacterial activity | Herbs | Extract

ABSTRACT
The aim of this study was to evaluate the effectiveness of natural herbs for antibacterial activity in water purification. The antimicrobial activity of Tulsi (Ocimum Sanctum), Neem (Azadirachta indica), Wheatgrass (Triticum Aestivum), Amla (Phyllanthus Emblica) and Katakphala (Strychnos Potatorum) were tested by Disc Diffusion Method (Kirby –Bauer Method) after extracting the dried material powder of natural herbs in 50% alcohol (ethanol). An antibacterial activity was observed in all herbs used. Most effective an antibacterial activity were observed in Tulsi, Neem and Wheat. In all herbs maximum removal of E.coli was found at 30 minutes contact time onwards. The percentage removal of E.coli were found 82.05% , 71.79% , 64.1% , 41.03% & 28.20% by using Tulsi, Neem , Wheatgrass , Amla and Katakphala herbs extract respectively, at 30 minute optimum contact time. The optimum removal of E.coli was observed at 1% concentration of extract of different herbs used.

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