便携式拉曼光谱仪作为伊比利亚干腌火腿特征分析的筛选工具。

Portable Raman Spectrometer as a Screening Tool for Characterization of Iberian Dry-Cured Ham.

作者信息

Martín-Gómez Andrés, Arroyo-Manzanares Natalia, García-Nicolás María, López-Lorente Ángela I, Cárdenas Soledad, López-García Ignacio, Viñas Pilar, Hernández-Córdoba Manuel, Arce Lourdes

机构信息

Department of Analytical Chemistry, Institute of Fine Chemistry and Nanochemistry, Marie Curie Annex Building, Campus de Rabanales, 14071 Córdoba, Spain.

Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, E-30100 Murcia, Spain.

出版信息

Foods. 2021 May 24;10(6):1177. doi: 10.3390/foods10061177.

DOI:10.3390/foods10061177

PMID:34073727

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8225093/

Abstract

Dry-cured Iberian ham is officially classified into different commercial categories according to the pig's breed and feeding regime. These reach very different prices, thus promoting labelling fraud and causing great damage to the food sector. In this work, a method based on Raman spectroscopy was explored as a rapid in situ screening tool for Iberian ham samples. A total of 110 samples were analyzed to assess the potential of this technique to differentiate purebred, crossbred, acorn-fed and feed-fed dry-cured Iberian ham. A continuous signal probably due to sample fluorescence was obtained, which hid the Raman scattering signal. Therefore, chemometric treatment was applied in order to extract non-apparent information. High validated classification rates were obtained for feeding regime (83.3%) and breed (86.7%). In addition, an interlaboratory study was carried out to confirm the applicability of the method with 52 samples, obtaining a validated rate above 80%.

摘要

根据猪的品种和饲养方式，干腌伊比利亚火腿被正式划分为不同的商业类别。这些类别价格差异很大，从而助长了标签欺诈行为，并给食品行业造成了巨大损失。在这项工作中，探索了一种基于拉曼光谱的方法，作为伊比利亚火腿样品的快速原位筛选工具。共分析了110个样品，以评估该技术区分纯种、杂交、橡果喂养和饲料喂养的干腌伊比利亚火腿的潜力。获得了一个可能由样品荧光引起的连续信号，该信号掩盖了拉曼散射信号。因此，应用化学计量学处理来提取不明显的信息。饲养方式（83.3%）和品种（86.7%）的验证分类率很高。此外，还进行了一项实验室间研究，以用52个样品确认该方法的适用性，获得了高于80%的验证率。