Use of FTIR‐PAS combined with chemometrics to quantify nutritional information in rapeseeds (Brassica napus). Issue 6 (10th October 2014)

• Record Type: Journal Article
• Authors: Lu, Yuzhen; Du, Changwen; Yu, Changbing; Zhou, Jianmin
• Is Part Of: Journal of plant nutrition and soil science. Volume 177:Issue 6(2014:Dec.)
• Page Start: 927
• Page End: 933
• Publication Date: 2014-10-10
• Subjects: Plants -- Nutrition -- Periodicals; Soil science -- Periodicals; 630
• DOI: 10.1002/jpln.201300399
• Languages: English
• ISSNs: 1436-8730

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>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 <italic>RPD</italic> (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 <italic>RPD</italic> 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.</p> </abstract>