Physicochemical and Morphological Properties of Milled Rice Sold in Shanghai, China–Survey of Rice in 2015–

日本作物學會紀事

article

佐藤 登代子¹  新田 洋司³  塩津 文隆⁴  浅木 直美¹  井上 栄一¹ 

[1] 茨城大学農学部;東京農工大学大学院連合農学研究科;福島大学食農学類;明治大学農学部

关键词: China;    Morphological properties;    Palatability;    Physicochemical properties;    Quality;    Rice;    Scanning electron microscope;    Shanghai city.;   

DOI  :  10.1626/jcs.90.52

来源: Nihon Sakumotsu Gakkai / Crop Science Society of Japan

【 摘 要 】

We investigated the characteristics of rice grains distributed on the market in China to clarify their quality, palatability and stored substance structure. Surveys were conducted in Shanghai city, which has a large population and many types of staple rice. According to an interview survey, citizens preferred milled rice from Heilongjiang and Liaoning provinces in northeast and Jiangsu province. In particular, milled rice, varieties “Wuchang Dami” and “Qiutian Xiaoting” from the northeastern region and milled rice variety “Sheyang Dami” from Jiangsu province were preferred. Amylose and protein contents were low in “Wuchang Dami” and “Qiutian Xiaoting”, and high in “Sheyang Dami”. Scanning electron microscopical observation of cooked rice revealed that a fine fibrous structure on the surface, a large membranous structure in peripheral layer, and a porous structure in the inner portion were observed in “Wuchang Dami” and “Qiutian Xiaoting”. While, in “Sheyang Dami”, although fine fibrous structures were observed on the surface, development of inner porous structure was insufficient, and protein granules were scattered in middle and central parts with insufficient gelatinization. These structures were similar to those in rice with “high- or low-palatability” in Japan. These results suggest that most of the milled rice sold and eaten in Shanghai city is similar in quality and palatability to milled rice marketed in Japan, with similar ultra-fine structure of cooked rice. It was also found that rice with high quality and palatability is generally distributed and sold in Shanghai city.

【 授权许可】

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