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Introduction of Rice Bran
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Introduction of Rice Bran

I am Hitoshi Shirakawa, and Professor of Laboratory of Nutrition, Graduated School of Agricultural Science at Tohoku University. And today’s and my topics is rice bran. We started rice bran research more than 10 years ago. I will show you our resent knowledge of processed rice bran for the prevention of life-style related disease.
Rice bran is one of the staple grain in the world. In Japan, we produce rice approximately eight million ton per year. We usually eat the polished rice. And rice bran is a by-product of rice milling process, almost 10% of brown rice. And in case of the world, in 2014, we had 533 million tons in the world. And also in Taiwan and 1 million and 732 tons at 2014.
Here is the picture of electron microscope of rice. Outer layer of brown rice is consisted of seed coat, and aleurone layer. These parts are removed by polishing, and become to the rice bran.
We have more than seven hundred and fifty kilotonnes of rice bran per year. Regarding the usage of rice bran in Japan, one-third of rice bran is used as a source of rice bran oil.
Major active ingredients in rice bran, gamma oryzanol, ferulic acid and tocotrienol are also isolated during the processing of rice bran oil , and here is a typical procedure of rice bran oil production. And gamma oryzanol, ferulic acid phytosterol, tocopherol, and toccotrienol are major byproducts of processing of rice bran oil. And from defatted rice bran fractions, inositol, phytic acid, and rice bran protein are also isolated as functional ingredients. I would like to show you the functional properties of these chemicals.

Welcome to this course on the Agriculture and Nutrition: Functional Property of Processed Rice Bran.

This video introduces you to the main themes we will cover over the next two weeks. It highlights the applications of rice bran including rice bran oil. Then Professor Shirakawa will outline the morphology of rice grain and the process of rice bran oil.

Have you ever heard of rice bran oil? Does your country utilize rice bran to produce products? If you are comfortable sharing, please leave the comments below.

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Agriculture and Nutrition

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