FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (17 ): 134-136.doi: 10.7506/spkx1002-6630-200917031

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Properties of Pigments from Water Chestnut Outer Peel

XU Guang-sheng1,XU Shan-shan2   

  1. 1. Department of Chemical Engineering, Huainan Union University, Huainan 232038, China;
    2. Department of Medicine, Huainan Union University, Huainan 232038, China
  • Received:2009-06-21 Online:2009-09-01 Published:2014-04-14
  • Contact: XU Guang-sheng E-mail:xgsheng123@163.com

Abstract:

Pigments were extracted from water chestnut outer peel by hot water extraction method and their appearance, color, solubility, spectroscopic characteristics and stability were studied. The pigments were a wine-red mixture and could be well dissolved in water and ethanol. Their stability was good under high temperature and in salt and sucrose solutions but weak under sunlight illumination. The pigments are a group of naturally occurring pigments which are worth developing.

Key words: water chestnut outer peel, pigment, characteristics

CLC Number: