Antioxidant, Antimicrobial and Toxicological Investigation of Propolis Год выпуска: 2012Автор: Md. Yousuf Ali and Utpal Kumar MondalИздательство: LAP Lambert Academic PublishingСтраниц: 92ISBN: 9783659304873Описание Propolis was extracted with methanol and the concentrated extract was then partitioned with pet-ether,carbon tetrachloride and chloroform and ethyl acetate.The Ethyl acetate extract of Propolis were subjected to free radical scavenging activity by the method of Brand-Williams et al., 1995. Here, tert-butyl-1-hydroxytoluene (BHT) was used as reference standard. In this investigation Propolis showed moderate free radical scavenging activity with the IC50 value of 220 ?g/ml.The Ethyl acetate extract of propolis were subjected to antimicrobial screening at a dose 400 ?g/disc. The crude extract showed mild antimicrobial activity with average zone of inhibition 7-8 mm.The extract was further subjected to brine shrimp lethality test.It showed cytotoxicity with a considerable potency. The LC50 value of the ethyl acetate extract of propolis was found to be 1.089 ?g/ml.
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