Prediction of lamb meat fatty acid composition using near-infrared reflectance spectroscopy (NIRS)
Prediction of lamb meat fatty acid composition using near-infrared reflectance spectroscopy (NIRS)
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DOI：
10.1016/j.foodchem.2011.01.084
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发表时间：
2011-08-01
期刊：
影响因子：
8.8
通讯作者：
Andueza, D.
中科院分区：
文献类型：
--
作者：
Guy, F.;Prache, S.;Andueza, D.
本研究旨在探讨近红外反射光谱法（NIRS）预测羔羊肉脂肪酸组成的可行性。我们比较了研磨与完整的非研磨肉类样品，以确定肉类样品的研磨和均质化是否提高了预测的性能。我们使用了76只雄性羔羊，其中32只为牧草喂养，44只为精料和干草喂养。在波长400和2500 nm之间测量腰最长肌的反射光谱。与完整的肌肉样本相比，地面样本的预测效果更好。NIRS准确预测了几种单独的脂肪酸（FA）（16：0、18：0、16：1 Delta 9顺式、17：1 Delta 9顺式、18：1 Delta 9顺式、18：1 Delta 11顺式和16：1 Delta 9反式）和几种FA基团（总线性饱和FA、总支链饱和FA、总饱和FA、总单不饱和FA（MUFA）、总反式MUFA、总MUFA和总多不饱和PUFA）。这些结果表明，近红外光谱作为一种快速，方便的工具来预测羊肉中的主要脂肪酸的潜力。(C)2011爱思唯尔有限公司版权所有。
The aim of this study was to assess the feasibility of near-infrared reflectance spectroscopy (NIRS) for predicting lamb meat fatty acid composition. We compared ground vs. intact non-ground meat samples to determine whether grinding and homogenisation of meat samples improved the performance of the predictions. We used 76 male lambs, of which 32 were pasture-fed and 44 stall-fed with concentrate and hay. The reflectance spectrum of Longissimus lumborum muscle was measured at wavelengths between 400 and 2500 nm. Predictions were better with ground than with intact muscle samples. NIRS accurately predicts several individual fatty acids (FA) (16:0, 18:0, 16:1 Delta 9 cis, 17:1 Delta 9 cis, 18:1 Delta 9 cis, 18:1 Delta 11 cis and 16:1 Delta 9 trans) and several FA groups (total linear saturated FA, total branched saturated FA, total saturated FA, total as monounsaturated FA (MUFA), total trans MUFA, total MUFA and total polyunsaturated PUFA). These results show the potential of NIRS as a rapid, and convenient tool to predict the major FA in lamb meat. (C) 2011 Elsevier Ltd. All rights reserved.