Publications by authors named "Haruna Chikaguchi"
Article Synopsis
- * A new approach using Raman spectroscopy has been proposed to quantify important nutritional aspects of rice, such as amylopectin and amylose levels, protein content, and amino acids, with minimal sample preparation.
- * The study also introduces a "Raman barcode" system, which links molecular analysis to accessible databases for quick and accurate identification of rice products, aiming to enhance dietary applications.
Analytical algorithms based on Raman spectroscopy are proposed for the determination of amylopectin and amylose concentrations in polished white rice, and applied to characterize and compare linear and branched polysaccharide structures in nine different types of Japanese rice. A selected algorithm used symmetric bending vibrations of the COC glycosidic linkage from a relatively narrow spectral zone between 830 and 895 cm. It specifically compared the intensity of Raman signals from two types of bending common to both starch components (C1-O-C5 and C1-O-C4 at 868 and 855 cm, respectively) and that at the branch point peculiar to amylopectin (C1-O-C6 at 844 cm).
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