FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (4): 254-256.doi: 10.7506/spkx1002-6630-200904057

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Improvement of National Standard Determination Method of Nitrite Content in Meat Products

XIANG Jin-xin,HU Ling-yu,ZHANG Xiao-shu,ZHANG Xiao-feng,FU Yu-jie,MA Lian-qiong   

  1. School of Bioengineering, Chongqing Institute of Technology, Chongqing 400050, China
  • Received:2008-06-26 Revised:2008-06-18 Online:2009-02-15 Published:2010-12-29
  • Contact: XIANG Jin-xin E-mail:xjx@cqit.edu.cn

Abstract:

At present, the pretreatment of GB/T5009.33—2003 determination method of nitrite in food is complex and takes long time. This study aimed to improve the pretreatment method by using natural macromolecule flocculent W-3 instead of potassium ferro cyanide and zinc acetate. By this improvement, operation time and labour force can be saved. Meat product samples were determined using this improved method. The obtained results are accurate with low detection limit, high recovery and the relative error of less than 3% compared with the national standard method.

Key words: nitrite, pretreatment, natural macromolecule flocculent w-3, protein precipitator

CLC Number: