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Abstract
Investigation of Antioxidation Properties from the Wood Vinegar of Mangosteen Fruits
Asadhawut Hiranrat1*, Preeyanun Wongsawat2, Wanrudee Hiranrat3 and Panita Sumanatrakul1
This work was focused on antioxidant activities of phenolic extracts from mangosteen fruits wood vinegar using DPPH radical scavenging and FRAP assays comparing with standard compounds, ascorbic acid and BHT. Phenolic extracts were differentially prepared from 2 methods for purifying the raw wood vinegars including standing at room temperature for 3 months and filtering through charcoal before extracting with 3, 4, 5 and 6% NaOH (w/v). The results found that phenolic extract from the filtered wood vinegar extracted with 4 and 5% NaOH exhibited the best activity for both of DPPH radical scavenging and FRAP methods similar to those of the standing method.