Evaluation of eating quality of white rice using Raman spectroscopy with multivariate analysis

IF 2.4 3区 化学 Q2 SPECTROSCOPY Journal of Raman Spectroscopy Pub Date : 2023-12-26 DOI:10.1002/jrs.6634
Sohei Yamada, Kohei Saito, Hayato Maeda, Shinichiro Kanda, Toyokazu Uemura, Takayo Ogawa, Satoshi Wada, Yasutaka Hanada
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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.

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利用拉曼光谱和多元分析评估白米的食用品质
本研究使用拉曼光谱(532 nm 激发光束)结合多元校准对未煮熟白米的食用品质进行了评估。该分析旨在建立光谱特征与传统感官测试结果之间的相关性,从而建立校准模型。根据相关的判定系数(R2)、校准的均方根误差和预测值的均方根误差,确认了每个模型的准确性。基于偏最小二乘回归的模型对白米饭的食用品质提供了合理的预测(R2 > 0.8)。此外,还利用投影技术中的变量重要性对影响总评价的成分进行了评估,结果表明,淀粉、直链淀粉、氨基酸、葡聚糖、碳水化合物和蛋白质都是决定白米质量的关键因素。这种新开发的方法可能适用于大米质量的评价,原则上也可用于其他食品的评价。
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来源期刊
CiteScore
5.40
自引率
8.00%
发文量
185
审稿时长
3.0 months
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.
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