Studies on antimicrobial activity of garlic (allium sativum l.) extract against bacillus subtilis and aspergillus niger

Madan Mohan Gunda., Rajendra Prasad.B., Odelu G and Ugandhar T

Garlic (Allium sativum L) is a species of monocot, bulb-forming perennial scented herb belonging to family Amaryllidacea. It is has anti-inflammatory properties. It stimulates heart and helps in maintain the proper functioning and also helps in expelling out of the extra amount of mucus that gets accumulated in the respiratory tract. The antibacterial potential of two extracts from leaf and bulb of garlic against pathogenic bacteria such as Bacillus subtilis and Aspergillus niger were evaluated by agar well diffusion method. The organic (Ethanol, Methanol, Ethyl acetate, Chloroform, Hexane and Petroleum ether) extracts of the leaves and bulbs were found to possess strong antibacterial activity against a range of pathogenic bacteria. The ethyl acetate leaf extract of garlic showed pronounced inhibition than chloroform, petroleum ether and hexane. The leaf extracts activity being more on Bacillus subtilis than Aspergillus niger.

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