Use of FTIR-PAS combined with chemometrics to quantify nutritional information in rapeseeds (Brassica napus)

文献类型： 外文期刊

第一作者： Lu, Yuzhen

作者： Lu, Yuzhen;Du, Changwen;Zhou, Jianmin;Yu, Changbing

作者机构：

关键词： nitrogen;nutrition;phosphorus;potassium;photoacoustic spectroscopy (PAS)

期刊名称：JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE （ 影响因子：2.426； 五年影响因子：3.029 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Fast acquisition of nutritional information of rapeseeds is important for rapeseed breeding programs, evaluation of soil nutrient conditions and even fertilization recommendations. Fourier transform mid-infrared photoacoustic spectroscopy (FTIR-PAS) was employed to determine nitrogen, phosphorus and potassium content in rapeseeds. Calibration models were developed using both partial least squares (PLS) and partial least squares combined with direct orthogonal signal correction (DOSC-PLS). According to the values of RPD (ratio of prediction to deviation), the PLS models for nitrogen and phosphorus were acceptable, while the PLS model for potassium needed to be improved. By contrast, DOSC-PLS models obtained the better predictive accuracy with RPD values of 2.54, 2.10 and 1.94 for nitrogen, phosphorus and potassium, respectively. This work demonstrates the good performance of FTIR-PAS for rapid and non-destructive quantification of nutritional information in rapeseeds.

分类号： S1

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