中国农业大学学报2025，Vol.30Issue(4)：81-95,15.DOI:10.11841/j.issn.1007-4333.2025.04.07
基于融合光谱的菜籽油氧化稳定性快速评价
Rapid evaluation of the oxidative stability of rapeseed oil based on fusion spectroscopy
摘要
Abstract
To achieve the real-time online monitoring of rapeseed oil oxidative stability,a custom-built portable near-infrared and Raman spectroscopy(NIR-Raman)device combined with spectral fusion techniques was utilized to assess the oxidative stability of rapeseed oil quantitatively.The NIR and Raman spectral data were collected from rapeseed oil samples exhibiting varying degrees of oxidation.Eight preprocessing methods and three feature selection approaches were applied to construct partial least squares regression(PLSR)models using data-level,feature-level decision and multi-block fusion strategies.The accuracy of the models was evaluated using the prediction set determination coefficient(Rp2)and the prediction root mean square error(RMSEP).The results demonstrated that:1)Taking peroxide value(POV)as an example,in the NIR spectrum,the SNV+MSC preprocessing method displayed the best performance with an Rp2 of 0.84 and RMSEP of 1.05;In the Raman spectrum,the SNV preprocessing method was the most optimal with an Rp2 of 0.85 and an RMSEP of 0.99;2)Among the spectral fusion schemes,the sequential orthogonal partial least squares(SO-PLS)method with multi-block fusion outperformed the other two methods,achieving R2 of 0.978 and RMSEP of 0.392;3)The prediction of rapeseed oil oxidation indicators,including malondialdehyde(MDA),anisidine value(AV),and conjugated diene value(CDV),using SO-PLS integrated NIR and Raman spectroscopy,R2 values reached 0.98,0.98,and 0.97,respectively,and RMSEP values were 0.871,1.039,and 2.132,respectively.In summary,this study applied the SO-PLS fusion of NIR and Raman spectra for rapid,non-destructive,real-time dynamic and realized the monitoring of the oxidation level of rapeseed oil.This study provided technical support for quality control in the processing of rapeseed oil.关键词
光谱融合技术/近红外光谱/拉曼光谱/菜籽油/氧化稳定性Key words
spectral fusion technique/Near-infrared spectroscopy/Raman spectroscopy/canola oil/oxidative stability分类
农业科技引用本文复制引用
王微娜,范伟,张炉,尹华全,咸嘉伟,荀拾虎,石林英,刘香,郭时印,唐忠海..基于融合光谱的菜籽油氧化稳定性快速评价[J].中国农业大学学报,2025,30(4):81-95,15.基金项目
国家自然科学基金项目(32360579) （32360579）
湖南省自然科学基金项目(2022JJ30295) （2022JJ30295）
湖南省教育厅优秀青年项目(20B286) （20B286）
