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Phytochemical and antimicrobial activity of green microalgae from Vellar Estuary,southeast coast of India

Journal of Coastal Life Medicine 2016年第5期4卷 374-376页

作者： Dineshkumar Ramar Narendran Rajendran Sampathkumar Pichai Centre of Advanced Study in Marine Biology Faculty of Marine SciencesAnnamalai University608502 ParangipettaiIndia

Objective:To determine the phytochemicals and screen the antimicrobial potential of Desmococcus olivaceus(***)and Chlorella vulgaris(***)against human bacterial ***:*** and *** were collected and confirmed through morphological *** were analyzed and confirmed by chemical *** layer chromatography was performed to evaluate the bioactive compounds present in the solvent *** activity of the extract obtained from dried green microalgae was tested against Gram negative and Gram positive bacteria using agar disc diffusion *** Gram negative bacteria like Klebsiella pneumonia,Proteus mirabilis,Vibrio cholerae,Salmonella typhi,Escherichia coli and Gram positive bacteria including Staphylococcus aureus,Bacillus subtilis,Enterococcus sp.,Clostridium botulinum(***)and Nocardia *** selected for *** cultures were obtained from Microbial Culture Maintenances Laboratory,Department of Medical Microbiology,Rajah Muthaiah Medical College,Annamalai University,Tamil Nadu,***:Seven bioactive compounds were detected viz.,phenols,tannin,flavanoids,saponins,terpenes,carbohydrates,alkaloids and *** Gram negative bacteria,Proteus mirabilis treated with ethanol extract of *** showed the maximum inhibition zone(17.2 mm),whereas in Gram positive bacteria,*** treated with diethyl ether extract showed inhibition zone of 19.0 *** test for ***,Gram negative bacteria Salmonella typhi treated with ethanol extract showed the maximum inhibition zone(13.0 mm),whereas in Gram positive bacteria,*** treated with chloroform extract of *** showed the maximum inhibition zone of 15 ***:The results clearly indicated that *** and *** contain promising antibacterial compounds.

关键词： Desmococcus olivaceous Chlorella vulgaris Phytochemical alkaloids and steroids Antibacterial activity

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