FOOD SCIENCE ›› 2018, Vol. 39 ›› Issue (12): 73-78.doi: 10.7506/spkx1002-6630-201812012

• Food Chemistry • Previous Articles     Next Articles

Interaction between Iron and Anthocyanin Extracted from Black Bean Coats

XIE Yanli, WANG Wei, ZHU Xiaolu   

  1. (Henan Key Laboratory of Cereal and Oil Food Safety Inspection and Control, College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China)
  • Online:2018-06-25 Published:2018-06-15

Abstract: In this research, the interaction between anthocyanin extracted from black bean coats and iron ions [Fe(II) and Fe(III)] was investigated by UV-visible absorption and fluorescence quenching spectrocopy. The effects of anthocyanin extract on the stability and solubility of iron ion were studied. The presence of iron ions changed the UV-visible absorption spectra of anthocyanins at the experimental pH values. Fluorescence quenching spectra showed the complexes formed between anthocyanins and iron ions. Anthocyanins were capable of protecting Fe(II) from being oxidized and improving the solubility of Fe(III).

Key words: anthocyanin, iron ion, interaction, stability, solubility

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