{"title":"Evaluation of eating quality of white rice using Raman spectroscopy with multivariate analysis","authors":"Sohei Yamada, Kohei Saito, Hayato Maeda, Shinichiro Kanda, Toyokazu Uemura, Takayo Ogawa, Satoshi Wada, Yasutaka Hanada","doi":"10.1002/jrs.6634","DOIUrl":null,"url":null,"abstract":"<p>The present study evaluated the eating quality of uncooked white rice using Raman spectroscopy, operating with a 532 nm excitation beam, in conjunction with multivariate calibration. This analysis was performed to establish correlations between features of the spectra and the results of conventional sensory tests with the aim of establishing calibration models. The accuracy of each model was confirmed based on the associated coefficient of determination (R<sup>2</sup>), root-mean-square error of calibration and root mean square error of prediction values. Models based on partial least-squares regression provided reasonable predictions (R<sup>2</sup> > 0.8) for the eating quality of white rice. In addition, the components affecting total evaluation were evaluated using the variable importance in projection technique, and the results showed that starch, amylose, amino acids, glucans, carbohydrates, and proteins are all crucial in terms of determining the quality of white rice. This newly developed method is likely to be suitable for the evaluation of rice quality and, in principle, could also be applied to the assessment of other foods.</p>","PeriodicalId":16926,"journal":{"name":"Journal of Raman Spectroscopy","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Raman Spectroscopy","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/jrs.6634","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"SPECTROSCOPY","Score":null,"Total":0}
引用次数: 0
Abstract
The present study evaluated the eating quality of uncooked white rice using Raman spectroscopy, operating with a 532 nm excitation beam, in conjunction with multivariate calibration. This analysis was performed to establish correlations between features of the spectra and the results of conventional sensory tests with the aim of establishing calibration models. The accuracy of each model was confirmed based on the associated coefficient of determination (R2), root-mean-square error of calibration and root mean square error of prediction values. Models based on partial least-squares regression provided reasonable predictions (R2 > 0.8) for the eating quality of white rice. In addition, the components affecting total evaluation were evaluated using the variable importance in projection technique, and the results showed that starch, amylose, amino acids, glucans, carbohydrates, and proteins are all crucial in terms of determining the quality of white rice. This newly developed method is likely to be suitable for the evaluation of rice quality and, in principle, could also be applied to the assessment of other foods.
期刊介绍:
The Journal of Raman Spectroscopy is an international journal dedicated to the publication of original research at the cutting edge of all areas of science and technology related to Raman spectroscopy. The journal seeks to be the central forum for documenting the evolution of the broadly-defined field of Raman spectroscopy that includes an increasing number of rapidly developing techniques and an ever-widening array of interdisciplinary applications.
Such topics include time-resolved, coherent and non-linear Raman spectroscopies, nanostructure-based surface-enhanced and tip-enhanced Raman spectroscopies of molecules, resonance Raman to investigate the structure-function relationships and dynamics of biological molecules, linear and nonlinear Raman imaging and microscopy, biomedical applications of Raman, theoretical formalism and advances in quantum computational methodology of all forms of Raman scattering, Raman spectroscopy in archaeology and art, advances in remote Raman sensing and industrial applications, and Raman optical activity of all classes of chiral molecules.