The feasibility of rapid determination of the cadmium content in rice based on near infrared spectroscopy and synergy interval partial least squares

Authors

ZHU Xiangrong, Longping Branch, Graduated School of Central South University, Changsha, Hunan 410125, China;Hunan Food Test and Analysis Centre, Changsha, Hunan 410125, China
LI Gaoyang, Longping Branch, Graduated School of Central South University, Changsha, Hunan 410125, China;Hunan Food Test and Analysis Centre, Changsha, Hunan 410125, China
SU Donglin, Longping Branch, Graduated School of Central South University, Changsha, Hunan 410125, China;Hunan Food Test and Analysis Centre, Changsha, Hunan 410125, China
LIU Wei, Longping Branch, Graduated School of Central South University, Changsha, Hunan 410125, China;Hunan Food Test and Analysis Centre, Changsha, Hunan 410125, China
SHAN Yang, Longping Branch, Graduated School of Central South University, Changsha, Hunan 410125, China;Hunan Food Test and Analysis Centre, Changsha, Hunan 410125, China

Abstract

Near infrared spectroscopy (NIRS) combined with synergy interval partial least squares (siPLS) were used to establish the rapid method for the determination of cadmium content in rice. The NIR spectra of 72 rice samples were collected and analyzed. After optimization, an approach (SG smoothing combined with MSC and mean-centering) was adopted as a pre-treatment method for raw spectrum. SiPLS method was used as extraction methods of characteristic variables, and the NIRS quantitative model was built and predicted. The RMSECV and RMSEP of the siPLS model were 0.247 and 0.261, respectively. The Rc and Rp were 0.919 and 0.895, respectively. The results showed that siPLS algorithm not only could decrease the complexity of the model, but also improved the predictive precision. NIRS can be useful as a rapid, non-destructive and convenient analytical method for primary screening and detecting cadmium-polluted rice.

Publication Date

8-28-2015

First Page

43

Last Page

46,50

DOI

10.13652/j.issn.1003-5788.2015.04.011

Recommended Citation

Xiangrong, ZHU; Gaoyang, LI; Donglin, SU; Wei, LIU; and Yang, SHAN (2015) "The feasibility of rapid determination of the cadmium content in rice based on near infrared spectroscopy and synergy interval partial least squares," Food and Machinery: Vol. 31: Iss. 4, Article 11.
DOI: 10.13652/j.issn.1003-5788.2015.04.011
Available at: https://www.ifoodmm.cn/journal/vol31/iss4/11

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