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Title: Antibacterial activities of polyunsaturated fatty acid extracts from <i>Sardinella longiceps</i> and <i>Sardinella fimbriata</i>
Authors: Chitra Som, R S
Radhakrishnan, C K
Keywords: PUFA
Antibacterial Activity
<i style="">Sardinella fimbriata</i>
<i style="">Sardinalla longiceps</i>
Issue Date: Oct-2011
Publisher: NISCAIR-CSIR, India
Abstract: Polyunsaturated fatty acids (PUFA) content of two species of fishes - <i style="">Sardinella fimbriata </i>and <i style="">Sardinella longiceps</i> - was examined and their antibacterial activities were compared. PUFA isolated from the tissue extracts were used to conduct Antibacterial Sensitivity Tests on pathogenic bacterial strains like <i style="">Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Klebsiella pnuemoniae, Enterobacter aerogenes, Proteus vulgaris, Salmonella enterica and Pseudomonas aeruginosa</i>. These extracts were subjected to Gas Chromatography for the quantitative analysis of PUFA. Extracts from both species showed inhibitory effects on the strains of <i style="">S. aureus</i>, <i style="">E. faecalis</i>, <i style="">E. coli</i> and <i style="">P. aeruginosa</i>. No inhibitory activities were observed on the strains of <i style="">K. pnuemoniae</i>, <i style="">E. aerogenes</i>, <i style="">P. vulgaris</i> and <i style="">S. enterica</i>.<i style=""> S. fimbriata </i>extract showed a higher inhibitory effect on all the inhibited bacterial strains. Gas Chromatography analysis revealed higher concentrations of docosahexaenoic acid (DHA) in the extracts from <i style="">S. fimbriata</i> as compared to <i style="">S. longiceps</i>. The differences between the antibacterial activities of the two extracts could be attributed to the disparity in DHA content.
Description: 710-716
ISSN: 0975-1033 (Online); 0379-5136 (Print)
Appears in Collections:IJMS Vol.40(5) [October 2011]

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