Antibacterial and antioxidant activity of lichen species Ramalina roesleri

Solvent extracts of Ramalina roesleri Nyl were assayed for antimicrobial and antioxidant activity. Hexane extract was highly active against Staphylococcus aureus and Streptococcus mutans. The 1,1-diphenyl-2-picryl-hydrazil (DPPH) radical scavenging activity of extracts ranged from 29.42% to 87.90%....

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Published inNatural product research Vol. 27; no. 23; pp. 2235 - 2239
Main Authors Sisodia, R., Geol, M., Verma, S., Rani, A., Dureja, P.
Format Journal Article
LanguageEnglish
Published England Taylor & Francis 01.12.2013
Subjects
Anti-Bacterial Agents - chemistry
Anti-Bacterial Agents - pharmacology
antimicrobial
antioxidant
Antioxidants - chemistry
Antioxidants - pharmacology
Bacteria - drug effects
Chromatography, Liquid
Drug Evaluation, Preclinical
Inhibitory Concentration 50
lichens
Lichens - chemistry
Magnetic Resonance Spectroscopy
Mass Spectrometry
Microbial Sensitivity Tests
Plant Extracts - chemistry
Plant Extracts - pharmacology
Ramalina roesleri
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Summary:Solvent extracts of Ramalina roesleri Nyl were assayed for antimicrobial and antioxidant activity. Hexane extract was highly active against Staphylococcus aureus and Streptococcus mutans. The 1,1-diphenyl-2-picryl-hydrazil (DPPH) radical scavenging activity of extracts ranged from 29.42% to 87.90%. Atranorin, protolichesterinic acid, usnic acid, 2-hydroxy-4-methoxy-6-propyl benzoic acid, homosekikaic acid, sekikaic acid, benzoic acid, 2,4-dihydroxy-6-propyl and 2,4-dihydroxy-3,6-dimethyl benzoate were isolated from the hexane extract. Maximum DPPH radical scavenging activity was exhibited by sekikaic acid followed by homosekikaic acid.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1478-6419
1478-6427
DOI:10.1080/14786419.2013.811410