FOURIER TRANSFORM MID-INFRARED PHOTOACOUSTIC SPECTROSCOPY (FTIR-PAS) COUPLED WITH CHEMOMETRICS FOR NON-DESTRUCTIVE DETERMINATION OF OIL CONTENT IN RAPESEED

文献类型： 外文期刊

第一作者： Lu, Y.

作者： Lu, Y.;Du, C.;Yu, C.;Zhou, J.

作者机构：

关键词： Fourier transform mid-infrared photoacoustic spectroscopy (FTIR-PAS);Oil content;Partial least squares (PLS);Rapeseed;Variable selection

期刊名称：TRANSACTIONS OF THE ASABE （ 影响因子：1.188； 五年影响因子：1.695 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： This article presents the application of Fourier transform mid-infrared photoacoustic spectroscopy (FTIR-PAS) coupled with chemometric techniques for rapid and non-destructive determination of oil content in rapeseed. The oil content of 150 rapeseed samples, as measured by Soxhlet extraction, were used as reference values for model calibration by partial least squares (PLS). The full-spectrum based PLS model achieved a root-mean-square error of prediction (RMSEP) of 1.11% and residual predictive deviation (RPD) of 2.20. Improved prediction results were obtained by performing variable selection based on ordered predictors selection (OPS) and competitive adaptive reweighted sampling (CARS). The best accuracy was achieved with the OPS based-PLS model, with RMSEP of 0.87% and RPD of 2.79.

分类号： S

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