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首页> 外文会议>Sensing for Agriculture and Food Quality and Safety VIII >A portable nondestructive real-time detection system for inspection of pork quality attributes using Vis/NIR spectral technique
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A portable nondestructive real-time detection system for inspection of pork quality attributes using Vis/NIR spectral technique

机译：使用Vis / NIR光谱技术检查猪肉质量属性的便携式无损实时检测系统

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摘要

There are many preferences expressing the quality of pork: color, pH, especially TVB-N content. Different quality pork has different spectral feature (in range of 400 to 1000nm). To detect quality attributes of pork easily, real-time, nondestructively, a portable device based on Vis/NIR spectral technique was developed. The device is mainly made up of four units: light source, spectrometer, controller and display screen. After hardware platform established, reflectance spectra of 44 samples were collected from this system. And their physicochemical characteristics such as color parameters, pH value and the content of total volatile basic-nitrogen (TVB-N) were measured in standard methods. Spectrum data acquired were processed by Savitzky-Golay filter(S-G) for noise removal, and then operated by standard normal variable transformation (SNV) for baseline drifts relieving. The partial least squares regression (PLSR) was used to build prediction models for L*, a*, b* pH* and TVB-N content, which could gain good prediction results with Rp of 0.92, 0.91, 0.92, 0.95 and 0.96 respectively. The results demonstrated that this device could be a promising tool applied to detecting pork quality attributes portably, real-time and nondestructively.
机译：表达猪肉质量的偏好很多：颜色，pH值，尤其是TVB-N含量。不同品质的猪肉具有不同的光谱特征（在400至1000nm范围内）。为了方便，实时，无损地检测猪肉的质量属性，开发了一种基于Vis / NIR光谱技术的便携式设备。该设备主要由四个单元组成：光源，光谱仪，控制器和显示屏。建立硬件平台后，从该系统收集了44个样品的反射光谱。并用标准方法测量其理化特性，例如颜色参数，pH值和总挥发性碱性氮（TVB-N）的含量。采集的频谱数据由Savitzky-Golay滤波器（S-G）处理以去除噪声，然后通过标准正态变量变换（SNV）进行操作以消除基线漂移。使用偏最小二乘回归（PLSR）建立L *，a *，b * pH *和TVB-N含量的预测模型，它们的Rp分别为0.92、0.91、0.92、0.95和0.96，可以获得良好的预测结果。 。结果表明，该设备可能是可移植，实时且无损检测猪肉质量属性的有前途的工具。

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