中文摘要：本研究探索近红外(NIR)和中红外(MIR)光谱结合化学计量学，开发出快速、低廉、无损光谱法，用于分级量化糙米中的黄曲霉毒素。研究表明，两种光谱技术都提供了替代快速检测谷物中黄曲霉毒素污染工具的可行性。
外文摘要：The applicability of near-infrared (NIR) and mid-infrared (MIR) spectroscopy combined with chemometrics was explored in this study to develop rapid, low-cost and non-destructive spectroscopic methods for classification and quantification of aflatoxins in brown rice. A total of 132 brown rice samples within the aflatoxin concentration range of 0–2435.8 μg/kg were prepared by artificially inoculated with A. flavus and A. parasiticus strains of fungus. For the classification of samples at varying levels of aflatoxin B1, the linear discriminant analysis model obtained correct classification rate of 96.9 and 90.6% for NIR and MIR spectroscopy, respectively. For the simultaneous determination of aflatoxins B1, B2, G1, G2 and the total aflatoxins, partial least squares regression also showed good predictive accuracy for both NIR (r v = 0.936–0.973, RPD = 2.5–4.0) and MIR spectroscopy (r v = 0.922–0.970, RPD = 2.5–4.0). The overall results indicated that the two spectroscopic techniques offered the feasibility to be used as alternative tools for rapid detection of various aflatoxin contaminations in grain.
外文关键词：Aflatoxins；Near-infrared (NIR)；Mid-infrared (MIR)；Brown rice；Chemometrics
作者：Shen, F；Wu, QF；Shao, XL；Zhang, Q
作者单位：Nanjing Univ Finance & Econ
期刊名称：JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE
期刊影响因子：1.241
出版年份：2018
出版刊次：3
点击下载：用近红外和中红外光谱技术快速无损评估糙米中的黄曲霉毒素