食品科学 ›› 2010, Vol. 31 ›› Issue (19): 453-456.doi: 10.7506/spkx1002-6630-201019099

• 专题论述 • 上一篇    下一篇

凯氏定氮法测定鱼蛋白质含量的干扰因素分析

鲁健章,孙丽华,周彦钢*   

  1. 浙江省医学科学院保健食品研究所
  • 收稿日期:2010-01-19 修回日期:2010-09-19 出版日期:2010-10-15 发布日期:2010-12-29
  • 通讯作者: 周彦钢 E-mail:zyg195588@yahoo.cn
  • 基金资助:

    浙江省科技厅重大项目(2007F10031)

Interference Factors of Protein Determination in Fish using Kjeldahl Method

LU Jian-zhang,SUN Li-hua,ZHOU Yan-gang*   

  1. Institute of Health Food, Zhejiang Academy of Medical Science, Hangzhou 310013, China
  • Received:2010-01-19 Revised:2010-09-19 Online:2010-10-15 Published:2010-12-29
  • Contact: ZHOU Yan-gang* E-mail:zyg195588@yahoo.cn

摘要:

为了使凯氏定氮法更适于鱼蛋白质含量测定,针对鱼肉中非氨基酸态氮和鱼类氮换算蛋白质的系数进行分析,并探讨凯氏定氮法测定鱼蛋白质的可行的改进措施。

关键词: 凯氏定氮法, 鱼蛋白, 氮换算蛋白质的系数, 非氨基酸态氮

Abstract:

In order to improve the accuracy of Kjeldahl method for the determination of fish protein, the conversion factor between amino acid nitrogen and non-amino acid nitrogen in fish protein is analyzed and a series of feasible improvement strategies for the determination of fish protein by Kjeldahl method are discussed in this paper.

Key words: Kjeldahl determination, fish protein, conversion factor, non-amino acid nitrogen

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