食品科学 ›› 2010, Vol. 31 ›› Issue (16): 168-171.doi: 10.7506/spkx1002-6630-201016035

• 分析检测 • 上一篇    下一篇

近红外光谱技术快速无损测定狭鳕鱼糜水分和蛋白质含量

王锡昌,陆 烨,刘 源   

  1. 上海海洋大学食品学院
  • 收稿日期:2010-03-22 修回日期:2010-06-21 出版日期:2010-08-25 发布日期:2010-12-29
  • 通讯作者: 王锡昌 E-mail:xcwang@shou.edu.cn
  • 基金资助:

    “十一五”国家科技支撑计划项目(2008BAD94B09);国家自然科学基金项目(30901125);
    农业部“948”项目(2006-G43);上海市教委重点学科建设项目(J50704)

Rapid Nondestructive Determination of Moisture and Protein Contents in Alaska Pollock Surimi by Near Infrared Reflectance Spectroscopy (NIRS)

WANG Xi-chang,LU Ye,LIU Yuan   

  1. College of Food Science and Technology, Shanghai Ocean University
  • Received:2010-03-22 Revised:2010-06-21 Online:2010-08-25 Published:2010-12-29
  • Contact: WANG Xi-chang E-mail:xcwang@shou.edu.cn

摘要:

通过拟合狭鳕鱼糜的近红外漫反射光谱与其水分和蛋白质含量,建立近红外定量模型,用于狭鳕鱼糜水分和蛋白质的快速无损检测。模型采用偏最小二乘法(PLS)拟合,水分和蛋白质的定标模型相关系数分别达0.98 和0.96以上,优于近红外透射光谱建立模型的预测结果。模型的相对标准偏差(RSD)< 10%,相对分析误差(RPD)> 3,表明该模型能准确快速地测定狭鳕鱼糜中的水分和蛋白质含量,且可用于实际生产中。

关键词: 鱼糜, 近红外光谱, 水分, 蛋白质, 无损检测

Abstract:

In order to achieve rapid nondestructive determination of moisture and protein contents in Alaska pollock surimi, near-infrared quantitative models were established by fitting the near-infrared diffuse reflectance spectral data of Alaska pollock surimi with its chemical values. The models were further developed by partial least square (PLS) regression and the correlation coefficients of the calibration models obtained were above 0.96 and 0.98, respectively, which gave more reliable prediction than its near-infrared transmission counterpart. The RSD values for 10 replicate predictions of moisture and protein contents in Alaska pollock surimi were both less than10% and the relative percentage difference (RPD) values were above 3, showing excellent effectiveness of the models developed in this study in predicting moisture and protein contents in Alaska pollock surimi.

Key words: surimi, NIRS, moisture, protein, non-destructive determination

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