使用便携式近红外光谱仪对有机和常规果果,片和果汁进行指纹检测的可行性研究
Francis Padi Lamptey1,2,3, Ernest Teye1,3, Sandra Ama Kaburi2
1Department of Agricultural Engineering, College of Agriculture and Natural Sciences, School of Agriculture, University of Cape Coast, Cape Coast, Ghana. ernest.teye@ucc.edu.gh.
Analytical methods : advancing methods and applications
|January 24, 2025
概括
便携式近红外 (NIR) 光谱学有效地区分有机与传统的果,片和果汁. 这项技术提供了一种可靠的,非侵入性的方法来验证有机声明,并提高消费者信任.
科学领域:
- 农业科学 农业科学
- 分析化学 分析化学
- 食品科学 食品科学 食品科学
背景情况:
- 验证有机产品的真实性对于消费者信任和市场完整性至关重要.
- 区分有机食品和传统食品的传统方法可能是耗时且昂贵的.
- 开发快速,非侵入性的技术对于食品工业的有效质量控制至关重要.
研究的目的:
- 评估便携式近红外 (NIR) 光谱仪在区分有机和传统果产品方面的有效性.
- 为了比较各种光谱预处理技术和多变量分类算法的性能.
- 建立一种可靠的方法来验证果在水果,片和果汁形式中的有机状态.
主要方法:
- 使用便携式NIR光谱仪 (900-1700nm) 分析了100个果样本 (50个有机,50个常规).
- 预处理技术的应用:多倍散射校正 (MSC),标准正常变量 (SNV) 和衍生品.
- 使用多变量分类算法:主要组件分析 (PCA),线性区分分析 (LDA),随机森林 (RF),k-最近邻居 (kNN) 和部分最小平方区分分析 (PLSDA).
主要成果:
- 随机森林 (RF) 算法,结合特定的预处理,产生了最高的分类准确度.
- 在果果实中,准确度为88.76%,在片中为77.98% (使用第二衍生品预加工),在果汁中为87.53% (没有预加工).
- 该研究表明,在不同形式的有机果产品和传统果产品之间,光谱数据存在显著差异.
结论:
- 便携式NIR光谱是一种可行的,非侵入性的工具,用于验证有机果产品的真实性.
- 这项技术可以提高食品标签的准确性,并加强消费者对有机声明的信心.
- 这些发现支持将NIR光谱纳入有机食品验证的常规质量控制中.
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