Study on Optimum O2 Scavenging Conditions by 1,2,3-trihydroxybenzene on Sweet Potato Stalk Activity

Abstract

Abstract: In this experiment the optimum conditions for O2 free-radical scavenging assay by the method of the auto-oxidationof 1,2,3-trihydroxybenzene were investigated. They were confirmed as the wavelength, 325nm; concentration of 1, 2, 3-trihydroxybenzene, 1.875mmol/L and at 25℃. The results of sweet potato stalk activity assay showed that all extracts of sweetpotato stalks had acceptable O2 scavenging effects. Among all groups, ether-extracts showed the highest activity. However, itsactivity only corresponded to 0.26 time that of Tea Polyphenol at the same concentration(%W/W).

Key words: sweet potato stalks, antioxidant activity, free-radical scavenging-•-•-•

MA Qing-Yi, ZHANG Xia, XIONG Wei-Dong, LIN Mei-Hua. Study on Optimum O2 Scavenging Conditions by 1,2,3-trihydroxybenzene on Sweet Potato Stalk Activity[J]. FOOD SCIENCE, 2004, 25(7): 132-135.

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Study on Optimum O2 Scavenging Conditions by 1,2,3-trihydroxybenzene on Sweet Potato Stalk Activity

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