FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (6): 108-110.

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Study on Distribution of Zinc in Biomacromolecules in Degummed Young Leaves of Water Shield

 ZHOU  Yi-Feng, TANG  Qiao-Yu, WU  Yong-Yao   

  1. 1.Key Laboratory for Protection and Utilization of Biological Resources of Hubei Province; 2.College of Bioscience and Technology, Hubei Institute for Nationalities; 3.Laboratory of Bio-chemical and Fermentation, Hunan Agricultural University
  • Online:2008-06-15 Published:2011-08-26

Abstract: The distribution orderliness of zinc in biomacromolecules in degummed young leaves of water shield (Brasenia schrebei) was studied by microwave digesting-flame atomic absorption spectrophotometry. The results indicated that the rank of zinc concentration in biomacromolecules in degummed young leaves of water shield is protein>polysaccharide >other organic matters; The rank of zinc concentration in polysaccharide is water-soluble polysaccharide > alkali-soluble polysaccharide > acid-soluble polysaccharide; For three constituents of water-solubility polysaccharide, the distribution ratio rank of zinc is WSPⅠ > WSP Ⅲ> WSPⅡ; For protein, the distribution ratio rank of zinc is weak alkali-soluble protein > water-soluble protein> salt-soluble protein> weak acid-soluble protein; For five constituents of water-soluble protein, the distribution ratio rank of zinc is WP Ⅳ>WP Ⅴ>WP Ⅱ>WP Ⅲ>WP Ⅰ.

Key words: water shield, biomacromolecules, zinc