中文摘要：污染是花生油行业非常关注的问题。傅立叶红外光谱结合化学计量法，可以研制出一种快速无损的筛查黄曲霉毒素污染花生油的方法。黄曲霉毒素B1（AFB1）和黄曲霉（AFT）呈阳性的花生油，用一种通过新的多元决策树(MDT)方法建立的红外光谱(MIR)分类模式进行筛查。本研究结果将为设计高效、经济的便携式高速多任务MIR仪器，筛查AFB1及AFT污染的花生油提供可行性。
外文摘要：Contamination of peanut oil is a great concern in the industry. FTIR spectroscopy combined with chemometrics could develop a rapid and nondestructive method to screen aflatoxin-contaminated peanut oil. Aflatoxin B1 (AFB1)- and aflatoxin (AFT)-positive peanut oils were screened by mid-IR (MIR) with classification models established by a novel multivariate decision tree (MDT) method. Two discriminant functions were developed in the fingerprint region based on absorbance ratio and moving window Fisher discrimination analysis methods for the two complex nodes in each MDT model. Window adjustment reduced the total different spectral data points in modelling to 23. The true-positive and true-negative rate of calibration and validation could both reach up to 100%. These results would render the possibility of efficient and economical design of a portable high-speed multitasking MIR instrument for screening AFB1- and AFT-contaminated peanut oil.
外文关键词：Aflatoxin；aflatoxin B1；mid-IR；multivariate decision tree；peanut oil
作者：Yang, Y；Zhang, YA；He, CY； Xie, MY；Luo, HT；Wang, Y；Zhang, J
作者单位：Jinan Univ
期刊名称：INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY
期刊影响因子：1.504
出版年份：2018
出版刊次：10
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