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Investigation of NIR hyperspectral imaging for discriminating melamine in milk powder

机译：近红外光谱法鉴别奶粉中三聚氰胺的研究

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摘要

Melamine (2,4,6-triamino-1,3,5-triazine) contamination of food has become an urgent and broadly recognized issue for which rapid and accurate identification methods are needed by the food industry. In this study, the feasibility and effectiveness of near-infrared (NIR) hyperspectral imaging was investigated for detecting melamine in milk powder. Hyperspectral NIR images (144 bands spanning from 990 to 1700 nm) were acquired for Petri dishes containing samples of milk powder mixed with melamine at various concentrations (0.02% to 1%). Spectral bands that showed the most significant differences between pure milk and pure melamine were selected, and two-band difference analysis was applied to the spectrum of each pixel in the sample images to identify melamine particles in milk powders. The resultant images effectively allowed visualization of melamine particle distributions in the samples. The study demonstrated that NIR hyperspectral imaging techniques can qualitatively and quantitatively identify melamine adulteration in milk powders.
机译：食品中的三聚氰胺（2,4,6-三氨基-1,3,5-三嗪）污染已成为迫切且广为接受的问题，食品工业需要快速而准确的识别方法。在这项研究中，研究了检测奶粉中三聚氰胺的近红外（NIR）高光谱成像的可行性和有效性。为培养皿中获得了高光谱NIR图像（跨度为990到1700 nm的144个波段），该培养皿中包含奶粉与三聚氰胺以不同浓度（0.02％至1％）混合的样品。选择在纯牛奶和三聚氰胺之间表现出最大差异的光谱带，并对样品图像中每个像素的光谱进行两带差异分析，以鉴定奶粉中的三聚氰胺颗粒。所得图像有效地使样品中的三聚氰胺颗粒分布可视化。该研究表明，NIR高光谱成像技术可以定性和定量地识别奶粉中的三聚氰胺掺杂。

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

    Xiaping Fu; Moon S. Kim; Kuanglin Chao; Jianwei Qin; Jongguk Lim; Hoyoung Lee; Yibin Ying;

  • 作者单位

    College of Biosystems Engineering Food Science, Zhejiang University, 866 Yuhangtang Road,Hangzhou, 310058, P.R.China,Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, USD A, 10300 Baltimore Avenue, Beltsville MD 20705 USA;

    Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, USD A, 10300 Baltimore Avenue, Beltsville MD 20705 USA;

    Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, USD A, 10300 Baltimore Avenue, Beltsville MD 20705 USA;

    Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, USD A, 10300 Baltimore Avenue, Beltsville MD 20705 USA;

    National Institute of Agricultural Engineering, Rural Development Administration, Suwon, 441-100, Korea;

    Environmental Microbial and Food Safety Laboratory, Agricultural Research Service, USD A, 10300 Baltimore Avenue, Beltsville MD 20705 USA;

    College of Biosystems Engineering Food Science, Zhejiang University, 866 Yuhangtang Road,Hangzhou, 310058, P.R.China;

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

    Food safety; Hyperspectral imaging; milk powder adulteration; melamine;

    机译：食品安全;高光谱成像；奶粉掺假;三聚氰胺;

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