Document Detail


Tissue culture of some lichens and screening of their antioxidant, antityrosinase and antibacterial properties.
MedLine Citation:
PMID:  17628467     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Lichen species Usnea ghattensis, Heterodermia podocarpa, Arthothelium awasthii and Parmotrema tinctorum have been cultured in vitro and screened for their antioxidant, antimicrobial and antityrosinase potential using different assay systems. The methanol extract of lichens showed antioxidant, antimicrobial and antityrosinase activities according to the order Usnea ghattensis > Arthothelium awasthii > Heterodermia podocarpa > Parmotrema tinctorum. The IC(50) values for the antioxidant and antityrosinase activities of U. ghattensis and A. awasthii were less than or equivalent to that of standard antioxidants and tyrosinase inhibitors. The methanol extracts of the lichen cultures Usnea ghattensis and Arthothelium awasthii were effective against Bacillus licheniformis, Bacillus megaterium, Bacillus subtilis and Staphylococcus aureus. The minimum inhibitory concentration (MIC) of the extract was found to be between 5 and 10 microg extract/mL. The results suggested that the extract of lichen cultures, U. ghattensis and A. awasthii, could be of use as an easily accessible source of natural antioxidants, tyrosinase inhibitory and antimicrobial properties as possible food supplements or in the pharmaceutical industry.
Authors:
B C Behera; Neeraj Verma; Anjali Sonone; Urmila Makhija
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Retracted Publication    
Journal Detail:
Title:  Phytotherapy research : PTR     Volume:  21     ISSN:  0951-418X     ISO Abbreviation:  Phytother Res     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-12-06     Completed Date:  2008-04-03     Revised Date:  2008-07-30    
Medline Journal Info:
Nlm Unique ID:  8904486     Medline TA:  Phytother Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  1159-70     Citation Subset:  IM    
Copyright Information:
Copyright (c) 2007 John Wiley & Sons, Ltd.
Affiliation:
Plant Science Division, Agharkar Research Institute, G. G. Agarkar Road, Pune-411004, India. bcbehera2002@yahoo.co.in
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MeSH Terms
Descriptor/Qualifier:
Anti-Bacterial Agents / analysis*
Biological Products / chemistry,  pharmacology
Culture Techniques
Flavonoids / analysis
Free Radical Scavengers / analysis*
Inhibitory Concentration 50
Lichens / chemistry*,  growth & development
Lipid Peroxidation / drug effects
Monophenol Monooxygenase / antagonists & inhibitors*
Phenols / analysis
Polysaccharides / analysis
Proteins / analysis
Chemical
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Biological Products; 0/Flavonoids; 0/Free Radical Scavengers; 0/Phenols; 0/Polysaccharides; 0/Proteins; 0/polyphenols; EC 1.14.18.1/Monophenol Monooxygenase
Comments/Corrections
Retraction In:
Williamson EM. Phytother Res. 2008 May;22(5):708   [PMID:  18444246 ]

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