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首页> 外文期刊>Meat Science >Simultaneous determination of tenderness and Escherichia coli contamination of pork using hyperspectral scattering technique
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Simultaneous determination of tenderness and Escherichia coli contamination of pork using hyperspectral scattering technique

机译：用高光谱散射技术同时测定猪肉的压痛和大肠杆菌污染

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摘要

A rapid nondestructive method based on hyperspectral scattering technique for simultaneous determination of pork tenderness and Escherichia coli (£. coli) contamination was studied in the research. The hyperspectral scattering images of thirty-one pork samples were collected in 400-1100 nm, and the scattering profiles were then fitted by Lorentzian distribution function to give three parameters a (asymptotic value), b (peak value) and c (full width at fa/2). The combined parameters of (b-a), (b-a)×c, (b-a)/c and "a&b&c" were used to develop multi-linear regression (MLR) models for prediction of pork tenderness and £. coli contamination. It was shown that MLR models developed using parameters a, b, (b-a) and (b-a)/c can give high correlation coefficients of 0.831, 0.860, 0.856 and 0.930 respectively for pork tenderness prediction. For £. coli contamination of pork, MLR models based on parameters a and "a&ft&c" can give high R_(cv) of 0.877 and 0.841 respectively.
机译：在研究中，研究了一种基于高光谱散射技术的快速无损检测方法，该方法可同时测定猪肉的压痛和大肠杆菌污染。在400-1100 nm处收集了31个猪肉样品的高光谱散射图像，然后通过Lorentzian分布函数拟合散射轮廓，以给出三个参数a（渐近值），b（峰值）和c（在fa / 2）。使用（b-a），（b-a）×c，（b-a）/ c和“ a＆b＆c”的组合参数来开发用于预测猪肉嫩度和£的多线性回归（MLR）模型。大肠杆菌污染。结果表明，使用参数a，b，（b-a）和（b-a）/ c开发的MLR模型在预测猪肉嫩度时可以分别提供0.831、0.860、0.856和0.930的高相关系数。为£。猪肉的大肠埃希菌污染，基于参数a和“ a＆ft＆c”的MLR模型可以分别获得0.877和0.841的高R_（cv）。

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  • 来源
    《Meat Science》 |2012年第3期|p.851-857|共7页
  • 作者

    Feifei Tao; Yankun Peng; Yongyu Li; Kuanglin Chao; Sagar Dhakal;

  • 作者单位

    College of Engineering. China Agricultural University, 17 Qinghua East Road, Haidian, Beijing 100083, China;

    College of Engineering. China Agricultural University, 17 Qinghua East Road, Haidian, Beijing 100083, China;

    College of Engineering. China Agricultural University, 17 Qinghua East Road, Haidian, Beijing 100083, China;

    USDA-ARS-EMFSL, 10300 Baltimore Ave., Beltsville, MD 20705. USA;

    College of Engineering. China Agricultural University, 17 Qinghua East Road, Haidian, Beijing 100083, China;

  • 收录信息 美国《科学引文索引》(SCI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    pork; tenderness; escherichia coli contamination; hyperspectral imaging; light scattering; lorentzian distribution function;

    机译：猪肉;压痛;大肠杆菌污染;高光谱成像光散射洛伦兹分布函数;

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