稻米及其加工副产物米糠中γ-谷维素研究现状

Research Progress on γ-Oryzanol in Rice and its Processed By-Product Rice Bran

我国稻米资源丰富,稻米加工过程中会伴随多种营养物损失并产生大量米糠副产物。γ-谷维素是存在于稻米糠层不皂化部分的生物活性化合物混合物,因其具有多种生理功能故近年来引起学者的广泛关注。概述稻米原料、稻米加工精度、稻米加工方式等对γ-谷维素含量变化的影响以及米糠加工副产物中γ-谷维素提取技术的研究进展。提议加强我国稻米γ-谷维素含量的数据采集工作,提倡稻米适度加工,应用挤压膨化、发芽及发酵技术开发糙米制品,加强我国稻米加工副产物活性组分的分离研究,符合我国节粮减损、健康中国、高质量发展等重大发展战略。

China is one the of the major production country of paddy rice,while during the processing of paddy rice,there is usually a high portion of nutrients loss and rice bran by-products are produced.γ-oryzanol is a mixture of bioactive compounds in the unsaponifiable part of rice bran layer.Research has been focusing on it in recent years due to its outstanding physiological functions.This paper reviews the effects of rice raw materials,precision of rice processing,rice processing methods on the content ofγ-oryzanol and the research progress on the extraction ofγ-oryzanol from rice bran.We suggest to stress the importance of the data collection ofγ-oryzanol content of rice,advocate moderate processing of rice,develop brown rice products by extrusion,advance germination and fermentation techniques,and strengthen the separation of active components from rice bran.This is in line with the major development strategies of grain saving and waste reduction,which helps build a healthy China and support high quality development of China.