FOOD SCIENCE ›› 2004, Vol. 25 ›› Issue (7): 71-74.

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~(31)P NMR Study on the Hydrolysis of Polyphosphate in Chicken Leg Meat

 GAO  Rui-Chang, PENG  Zeng-Qi, CHEN  De-Chang, YUAN  Li, WANG  Gui-Hua   

  1. 1.Food Science and Technology Institute of Hebei Agriculture University;2.College of Food Science and Technology,Nanjing Agriculture University;3.Chemistry Research Institute,China Lucky Film Ltd.Co.
  • Online:2004-07-15 Published:2011-10-24

Abstract: The hydrolysis of Tripolyphophate and pyrophophate was studied in chicken leg meat by 31P NMR.There werethree groups fresh chicken leg meat. One was treated with 5% NaCl solution as the control. The other was treated with 5%NaCl+6%TSPP solution and another was treated with 5%NaCl +6%STPP solution. The injection rate of marinate into chicken legmeat was 200ml/kg.TSPP and STPP were found to be hydrolyzed in chicken leg meat. TSPP was hydrolyzed to monophosphate.STPP was hydrolyzed to orthphosphate and pyrophosphate, whereas pyrophosphate was hydrolyzed to monophosphate. Thespeed of the hydrolysis of STPP was higher than the speed of TSPP.

Key words: polyphosphate, hydrolyze, 31P NMR