6MAR N A,RUBIO J S, MART N V,et al. Antioxidant compounds in green and red peppers as affected by irrigation frequency, salinity and nutrient solution eomposition[J]. Journal of the Science of Food and Agriculture, 2009,89(8) :1352-1359.
7VALLEE B L,AULD D S. Zinc coordination,function and structure of zinc enzymes and other protein[J]. Biochemistry, 1990(29):5647-5659.
8HE J J,LIU Y X,PAN Q H,et al. Different anthocyan in profiles of the skin and the pulp of Yan 73 grape berries[J]. Molecules, 2010,15 (3): 1141- 1153.
