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首页> 外文期刊>LWT-Food Science & Technology >Quality alert from direct discrimination of polycyclic aromatic hydrocarbons in edible oil by liquid-interfacial surface-enhanced Raman spectroscopy
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Quality alert from direct discrimination of polycyclic aromatic hydrocarbons in edible oil by liquid-interfacial surface-enhanced Raman spectroscopy

机译：通过液态界面表面增强拉曼光谱从可食用油中的多环芳烃直接辨别的质量警报

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摘要

Edible oil is easy to be polluted by polycyclic aromatic hydrocarbons (PAHs) in production, processing, storage and use. Rapid screening of oil quality and safety is a huge demand in food industry and government regulation. Usually, sample pretreatment is needed for PAHs detection due to the complexity of the oil base but greatly limits the detection speed. Here we develop a liquid-interfacial surface-enhanced Raman spectroscopy (SERS) technology without sample pretreatment to realize the rapid and direct detection of ultra-trace PAHs in edible oil within 3 min. A quantitative analysis curve of benzopyrene (BaP) content in soybean oil is established in the range of 0.1 ppb-100 ppm with a high coefficient correlation (R-2) of 0.9959 in curve fitting. It was found that only 4.5 h of frying would make the BaP content exceed the limit of 10 ppb in the Chinese Food Safety National Standard. Four common PAHs can be quickly identified in frying oil samples collected from special snack streets and the SERS profiles of soybean oil with adulteration of refined gutter oil could be well classified. This study paves a reliable method to rapid analyze edible oil with broad application prospects in the field of grain and oil safety.
机译：食用油在生产、加工、储存和使用过程中容易受到多环芳烃（PAHs）的污染。快速检测油品质量和安全性是食品行业和政府监管的巨大需求。由于油基的复杂性，多环芳烃的检测通常需要样品预处理，但极大地限制了检测速度。我们开发了一种无需样品预处理的液界面表面增强拉曼光谱（SERS）技术，以实现在3分钟内快速、直接检测食用油中的超痕量多环芳烃。建立了大豆油中苯并芘（BaP）含量的定量分析曲线，其范围为0.1 ppb-100 ppm，曲线的高相关系数（R-2）为0.9959适合的结果发现，只有4.5小时的煎炸时间，BaP含量才会超过中国食品安全国家标准中10 ppb的限值。从特殊小吃街采集的煎炸油样品中可以快速识别出四种常见的多环芳烃，并且可以很好地对掺有精制地沟油的大豆油的SERS图谱进行分类。本研究为食用油的快速分析提供了一种可靠的方法，在粮油安全领域具有广阔的应用前景。

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  • 来源
    《LWT-Food Science & Technology》 |2021年第1期|共10页
  • 作者

    Su Mengke; Jiang Qian; Guo Jinhu; Zhu Yuxin; Cheng Shuai; Yu Ting; Du Shanshan; Jiang Yifan; Liu Honglin;

  • 作者单位

    Hefei Univ Technol Engn Res Ctr Bioproc Sch Food &

    Biol Engn Minist Educ Hefei 230009 Anhui Peoples R China;

    Hefei Univ Technol Engn Res Ctr Bioproc Sch Food &

    Biol Engn Minist Educ Hefei 230009 Anhui Peoples R China;

    Hefei Univ Technol Engn Res Ctr Bioproc Sch Food &

    Biol Engn Minist Educ Hefei 230009 Anhui Peoples R China;

    Hefei Univ Technol Engn Res Ctr Bioproc Sch Food &

    Biol Engn Minist Educ Hefei 230009 Anhui Peoples R China;

    Hefei Univ Technol Engn Res Ctr Bioproc Sch Food &

    Biol Engn Minist Educ Hefei 230009 Anhui Peoples R China;

    Hefei Univ Technol Engn Res Ctr Bioproc Sch Food &

    Biol Engn Minist Educ Hefei 230009 Anhui Peoples R China;

    Hefei Univ Technol Engn Res Ctr Bioproc Sch Food &

    Biol Engn Minist Educ Hefei 230009 Anhui Peoples R China;

    Hefei Univ Technol Engn Res Ctr Bioproc Sch Food &

    Biol Engn Minist Educ Hefei 230009 Anhui Peoples R China;

    Hefei Univ Technol Engn Res Ctr Bioproc Sch Food &

    Biol Engn Minist Educ Hefei 230009 Anhui Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 食品工业;
  • 关键词

    PAHs; Edible oil; Adulteration; Self-assembly; Raman spectroscopy;

    机译：多环芳烃;食用油;掺假;自组装;拉曼光谱;

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