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Rapid non-destructive assessment of pork edible quality by using VIS/NIR spectroscopic technique

机译：VIS / NIR光谱技术快速无损评估猪肉食用品质

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摘要

The objectives of this research were to develop a rapid non-destructive method to evaluate the edible quality of chilled pork. A total of 42 samples were packed in seal plastic bags and stored at 4℃ for 1 to 21 days. Reflectance spectra were collected from visibleear-infrared spectroscopy system in the range of 400nm to HOOnm. Microbiological, physicochemical and organoleptic characteristics such as the total viable counts (TVC), total volatile basic-nitrogen (TVB-N), pH value and color parameters L* were determined to appraise pork edible quality. Savitzky-Golay (SG) based on five and eleven smoothing points, Multiple Scattering Correlation (MSC) and first derivative pre-processing methods were employed to eliminate the spectra noise. The support vector machines (SVM) and partial least square regression (PLSR) were applied to establish prediction models using the de-noised spectra. A linear correlation was developed between the VIS/NIR spectroscopy and parameters such as TVC, TVB-N, pH and color parameter L* indexes, which could gain prediction results with Rv of 0.931, 0.844, 0.805 and 0.852, respectively. The results demonstrated that VIS/NIR spectroscopy technique combined with SVM possesses a powerful assessment capability. It can provide a potential tool for detecting pork edible quality rapidly and non-destructively.
机译：这项研究的目的是开发一种快速的非破坏性方法来评估冰鲜猪肉的食用品质。将总共​​42个样品包装在密封的塑料袋中，并在4℃下保存1到21天。从可见/近红外光谱系统收集反射光谱，其范围为400nm至110nm。测定了微生物的，理化和感官特性，例如总生存量（TVC），总挥发性碱性氮（TVB-N），pH值和颜色参数L *，以评估猪肉的食用品质。基于五个和十一个平滑点的Savitzky-Golay（SG），多重散射相关（MSC）和一阶导数预处理方法被用来消除频谱噪声。应用支持向量机（SVM）和偏最小二乘回归（PLSR）来建立使用降噪频谱的预测模型。在VIS / NIR光谱与TVC，TVB-N，pH和颜色参数L *指数等参数之间建立了线性相关性，可以得到Rv分别为0.931、0.844、0.805和0.852的预测结果。结果表明，VIS / NIR光谱技术结合SVM具有很强的评估能力。它可以为快速，无损检测猪肉食用质量提供潜在的工具。

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  • 来源
  • 会议地点 Baltimore MD(US)
  • 作者

    Leilei Zhang; Yankun Peng; Sagar Dhakal; Yulin Song; Juan Zhao; Songwei Zhao;

  • 作者单位

    China Agricultural University, National RD Center for Agro-processing Equipment, 17 Qinghua E. Rd, Haidian, Beijing 100083, China ABSTRACT;

    China Agricultural University, National RD Center for Agro-processing Equipment, 17 Qinghua E. Rd, Haidian, Beijing 100083, China ABSTRACT;

    China Agricultural University, National RD Center for Agro-processing Equipment, 17 Qinghua E. Rd, Haidian, Beijing 100083, China ABSTRACT;

    China Agricultural University, National RD Center for Agro-processing Equipment, 17 Qinghua E. Rd, Haidian, Beijing 100083, China ABSTRACT;

    China Agricultural University, National RD Center for Agro-processing Equipment, 17 Qinghua E. Rd, Haidian, Beijing 100083, China ABSTRACT;

    China Agricultural University, National RD Center for Agro-processing Equipment, 17 Qinghua E. Rd, Haidian, Beijing 100083, China ABSTRACT;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Pork edible quality; VIS/NIR Spectroscopy; SVM; TVC; TVB-N;

    机译：猪肉食用品质； VIS / NIR光谱；支持向量机; TVC；无线电视;

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