Change in volatiles, soluble sugars and fatty acids of glutinous rice, japonica rice and indica rice during storage
文献类型: 外文期刊
作者: Xianqiao Hu;Changyun Fang;Weixing Zhang;Lin Lu;Zhenling Guo;Shuimei Li;Mingxue Chen
作者机构:
关键词: Fatty acids;Flavor;Rice;Soluble sugars;Volatiles
期刊名称: LWT
ISSN: 0023-6438
年卷期: 2023 年 174 卷
页码:
收录情况: SCIE(2023版) ; ; EI(2023版)
摘要: Rice flavor is one of the most important rice qualities, consisting of aroma and taste. In this paper, aroma- and sweetness-related compounds were investigated and compared in glutinous, japonica, and indica rice. More volatile compounds were found in glutinous rice, as compared with japonica and indica rice. Hexanal, nonanal, octanal, trans-2-octenal, trans-2-nonenal, heptanal, decanal, (E,E)-2,4-nonadienal, (E,E)-2,4-decadienal, 2-pentylfuran, 2-n-butylfuran, 1-octen-3-ol, 2-ethylhexyl acrylate, 2-decanone, and 2-nonen-4-one were important contributors to the aromatic profile, according to their relative odor activity values. Sucrose was found to be the main contributor to sweetness, while other soluble sugars had little sweetness contribution. During storage, the contents of fatty acids and soluble sugars decreased, except for fructose. The decrease in soluble sugar content had an adverse effect on the sweetness of cooked rice and the Maillard reaction during cooking, resulting in lower quality rice flavor. In addition, the content of volatiles, such as aldehydes, ketones, and furans, increased during rice storage and negatively impacted rice aroma.
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