STUDIES ON ANTIMICROBIAL AND ANTIOXIDANT PROPERTIES OF OYSTER MUSHROOM PLEUROTUS FLORIDA
AbstractThe antimicrobial and antioxidant activity of four different solvent extracts of P. florida were investigated. The antimicrobial activities of different solvents were tested against different bacteria and fungi using disc diffusion method. Total antioxidant, reducing power and total phenolic content effect of the extracts was determined by phosphomolybdenum assay, 2,2-diphenyl-1-picrylhydrazyl (DPPH) method and Folin-Ciocalteu method. Results indicated that the maximum antibacterial and antifungal activity was observed in ethanol extract of P. florida was found at 23 mm and 20mm against Streptococcus sp and E. floccosum respectively. Ethanolic extract of P. florida produced minimum inhibitory concentration (MIC) at 25mg/ml against E. coli followed by K. oxytoca (25mg/ ml), P. murabilis (75mg/ml) and Streptococcus sp. (50mg/ml). The ethanol extract exhibited good antioxidant activity (230 µg equivalent of BHT/g), strongest reducing power inhibition (79.24%) and also contain high phenolic content (6.25 mg gallic acid/g of dry extract). The results provided evidence that the ethanolic extracts of P. florida might indeed be potential sources of natural antioxidant and antimicrobial agents
Article Information
43
1540-1545
416KB
2420
English
IJPSR
K. A. Thillaimaharani , K. Sharmila , P.Thangaraju , M. Karthick and M. Kalaiselvam*
Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai- 608 502, Tamil Nadu, India
kalaifms@gmail.com
12 September, 2012
03 March, 2013
22 March, 2013
http://dx.doi.org/10.13040/IJPSR.0975-8232.4(4).1540-45
01 April, 2013
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