ナカムラ スミコ
Sumiko Nakamura
中村 澄子 所属 新潟薬科大学 応用生命科学部 応用生命科学科 職種 特任准教授 |
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言語種別 | 英語 |
発行・発表の年月 | 2019 |
形態種別 | 論文 |
査読 | 査読あり |
標題 | Relationship between fatty acid composition and starch properties of 30 japonica rice cultivars |
執筆形態 | 共著 |
掲載誌名 | Cereal Chemistry |
掲載区分 | 国外 |
巻・号・頁 | 96,pp.228-242 |
著者・共著者 | Sumiko Nakamura, Junji Katsura, Yasuhiro Maruyama, Ken'ichi Ohtsubo |
概要 | The objectives of the present research are to characterize the fatty acid compositions of the various rice cultivars and to develop the estimation formulae for fatty acid contents based on the pasting properties. We characterized 30 japonica rice cultivars and investigated their relationship in terms of iodine absorption curve, chain length distribution of amylopectin, pasting property, and fatty acid composition of starch lipids. Oleic acid content was negatively correlated with linoleic acid (r = −0.98), and palmitic acid (r = −0.84) (p < 0.01). Rice samples of low degree of polymerization in amylopectin showed high linoleic and linolenic acid content. We developed novel estimation formulae for oleic and linoleic acid content based on pasting properties. These formulae would be useful to evaluate the characteristics of rice cultivars using an RVA. |