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|Title:||Antioxidant and antimicrobial activities of Saraca thaipingensis Cantley ex Prain|
Chulabhorn Research Institute
|Keywords:||Biochemistry, Genetics and Molecular Biology|
|Citation:||Asian Pacific Journal of Tropical Biomedicine. Vol.2, No.2 SUPPL. (2012)|
|Abstract:||Objective: To investigate antioxidant and antimicrobial activities of Saraca thaipingensis Cantley ex Prain; and isolation of its flower extracts. Methods: The plant species (flowers, leaves, and twigs) were extracted by hexane, dichloromethane, ethyl acetate and methanol; and tested for antioxidant activity (DPPH assay) and antimicrobial activity (agar dilution method) against twenty-seven strains of microorganisms; gram positive and gram negative bacteria, and diploid fungus. Bioactive constituents were isolated by column chromatography. Results: The plant extracts has been firstly reported to display strong antioxidant activity and antimicrobial activity selective against gram positive bacteria (Corynebacterium diphtheriae NCTC 10356 and Streptococcus pyogenes) with MIC of 256 μg/mL. Stigmasterol and a mixture of triterpenoids and phenolic compounds were isolated from the flower extracts. Conclusions: The study revealed that the S. thaipingensis is a new source of natural antioxidants and antimicrobials with potential fo r medicinal uses. © 2012 Asian Pacific Tropical Biomedical Magazine.|
|Appears in Collections:||Scopus 2011-2015|
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