Chemical composition and antimicrobial assessment of liverwort Lophozia ventricosa extracts
2015
Authors:
Bukvicki, DankaGottardi, Davide
Vannini, Lucia
Džamić, Ana M.
Ćirić, Ana
Marin, Petar D.
Veljic, Milan
Document Type:
Article (Published version)
Metadata
Show full item recordAbstract:
The chemical composition of the methanolic and ethyl acetate extracts of
liverwort Lophozia ventricosa (Dicks.) Dumort. was determined by solid
phase microextraction-gas chromatography mass spectrometry (SPME-GC/MS).
The dominant compounds in L. ventricosa methanolic extract were o-cymene
(38.87 \%), beta-barbatene (26.35 \%), and alpha-barbatene (8.30 \%),
while the main components in ethyl acetate extract were beta-barbatene
(45.39 \%), maalioxide (9.89 \%), and alpha-barbatene (8.21 \%). The
antimicrobial activity of L. ventricosa extracts was evaluated against
15 pathogenic microorganisms using microdilution method. Extracts were
initially screened against following Gram (-) bacteria Enterobacter
cloacae, Pseudomonas aeruginosa, Salmonella typhimurium, and Gram (+)
bacteria: Bacillus cereus, Listeria monocytogenes, Micrococcus flavus,
and Staphylococcus aureus. The minimum inhibitory concentration (MIC)
varied from 2.50 to 5.00 mg/mL for bacterial strains, and from 1.25 to
5.00 mg/mL for micromycetes. For the antifungal bioassays, eight fungi
were used Aspergillus niger, A. fumigates, A. ochraceus, A. versicolor,
Penicillium funiculosum, P. ochrochloron, Trichoderma viride, and
Candida albicans. Sensitivity of fungi to the effect of the extracts was
higher than that of bacteria tested.
Keywords:
Antimicrobial activity; Liverworts; Lophozia ventricosaSource:
Brazilian Journal of Botany, 2015, 38, 1, 25-30
DOI: 10.1007/s40415-014-0104-z
ISSN: 1806-9959