Functionality of Compounds Contained in Rice Bran and Their Improvement

  • Taniguchi Hisaji
    (Former) Department of Chemical Technology, Industrial Technology Center of Wakayama Prefecture
  • Hashimoto Hiroyuki
    Tsuno Food Industrial Co., Ltd.
  • Hosoda Asao
    Department of Food Industry, Industrial Technology Center of Wakayama Prefecture
  • Kometani Takashi
    Department of Food Science and Nutrition, Faculty of Agriculture, Kinki University
  • Tsuno Takuo
    Tsuno Food Industrial Co., Ltd.
  • Adachi Shuji
    Division of Food Science and Biotechnology, Graduate School of Agriculture, Kyoto University

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Other Title
  • 米糠含有成分の機能性とその向上
  • コメヌカ ガンユウ セイブン ノ キノウセイ ト ソノ コウジョウ

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Abstract

Consuming rice as the staple, 0.95 million tons of rice bran is produced annually in Japan as a by-product from the rice milling process. Bran is used in several applications such as animal feed and fertilizer for mushroom cultivation, but most of it has been discarded as an agricultural waste although it contains various functional substances, such as γ-oryzanol, ferulic acid, sterol, wax, ceramide, phytin, inositol and protein. It could be considered a scarcely used but promising resource. As such, continuous efforts have been dedicated to exploring its effective utilization. In this context, functionalities of the substances contained in the bran are summarized, and our attempts for improving functionality, improving ease of use, and exploring new applications are presented.

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