FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (13): 116-118.doi: 10.7506/spkx1002-6630-201213024

• Basic Research • Previous Articles     Next Articles

Effect of Heating on the Antioxidant Activities of Acorn Starch

ZHANGPan,YUHui,XIANGBin-bin,WANGXiao-chang   

  1. (Tea Research Institute, Zhejiang University, Hangzhou 310058, China)
  • Received:2020-04-01 Revised:2020-04-01 Online:2012-07-15 Published:2012-07-27

Abstract: The effect of heat treatment on the free radical scavenging properties of acorn starch was investigated. After 2 h heat treatment, the color of acorn starch showed no visible change. With increasing heating temperature, the total polyphenol content displayed an obvious downward trend. Moreover, heat treatment resulted in a distinct decrease in the free radical scavenging properties against DPPH and hydroxyl free radicals by different percentages. After heat treatment at 120 ℃ for 2 h, the hydroxyl free radical scavenging capacity decreased by 56.2%, while the DPPH free radical scavenging capacity decreased by only 8%. These results suggest that heat treatment has different effect on the scavenging properties of against DPPH and hydroxyl free radicals.

Key words: acorn starch, heat treatment, antioxidant activity

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