FOOD SCIENCE ›› 2006, Vol. 27 ›› Issue (3): 197-199.

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Assay Research on VC in Fruit and Vegetable

ZHAO  Xiao-Mei, JIANG  Ying, WU  Yu-Peng, LIU  Kuan, ZHANG  Zhi-Qiang   

  1. 1.College of Food Engineering, Shihezi University, Shihezi 832000,China;2.College of Agriculture, Shihezi University, Shihezi 832000, China
  • Online:2006-03-15 Published:2011-09-06

Abstract:  There is red colour in some fruit and vegetable juice, in the case of regular titration to measure the VC content, soit is very difficult to judge titration terminal point. This experiment adopted the xylene and other organic agents to extract the coloringmatter and, then used the 2,6-dichlorindophenol to proceed titration. Through the verification, it shows satisfactory to results.

Key words:  , watermelon; tomato; cherry tomato; carrot; persimmon; vitamin C; 2,6-dichlorindophenol titra-tion;