ISSN: 0973-7510

E-ISSN: 2581-690X

Sheetal Mehta and Savita Jandaik
Faculty of Biotechnology, Shoolini University of Biotechnology and Management Sciences, Solan, Himachal Pradesh – 173 212, India.
J Pure Appl Microbiol. 2012;6(4):1997-2001
© The Author(s). 2012
Received: 08/04/2012 | Accepted: 14/05/2012 | Published: 31/12/2012
Abstract

A wide variety of organisms are emerging as resistant to antibiotics, and multiple drug resistant organisms pose a serious threat to the treatment of infectious diseases. Hence, mushroom derived antimicrobial substances have received considerable attention in recent years. In this study antagonistic effects of the methanol, acetone and water extracts of mycelia and fruiting body of Ganoderma lucidum were tested against seven bacterial species: Escherichia coli, Staphylococcus aureus, Bacillus subtilis, Pseudomonas aeruginosa, Enterobacter aerogenes, Klebsiella pneumoniae, and Salmonella typhimurium. All the extracts exhibited various degree of inhibition against all test bacteria. Widest inhibitory zone (33mm) was obtained with mycelial acetone extract of Ganoderma lucidum against Pseudomonas aeruginosa. Lowest zone of inhibition (7mm) was observed with fruiting body aqueous extract against Staphylococcus aureus and Klebsiella pneumoniae. Minimum inhibitory concentration (MIC) of acetone extract of fruiting body and mycelial extract was determined, for mycelial extract it ranged between 4 to 12mg/ml and for fruiting body extract it ranged between 15 to 35 mg/ml for test bacteria.

Keywords

Ganoderma lucidum, Antibacterial activity, Bioactive molecules, Extraction

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© The Author(s) 2012. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.