期刊
JOURNAL OF MEDICINAL FOOD
卷 19, 期 7, 页码 710-715出版社
MARY ANN LIEBERT, INC
DOI: 10.1089/jmf.2015.3647
关键词
adipogenesis; bioactive compound; gamma-oryzanol; mesenchymal stem cells; obesity
资金
- Rural Development Administration, Republic of Korea [PJ010059]
gamma-Oryzanol, a prevalent compound in pigmented rice varieties, has been reported to ameliorate obesity-associated metabolic disorders. Antiadipogenic activities of gamma-oryzanol were determined in human adipose-derived mesenchymal stem cells and mouse-derived 3T3-L1 cells. gamma-Oryzanol significantly decreased lipid accumulation and reduced glycerol-3-phosphate dehydrogenase activities in both adipocytes. In addition, gamma-oryzanol in four pigmented rice varieties (black with giant embryo, brown, sugary brown, and red) was stable when stored at 4 degrees C and also at room temperature for 22 weeks, whereas other bioactives such as lutein and beta-carotene were stable only at -80 degrees C. Furthermore, the yield of gamma-oryzanol from these rice varieties was significantly increased through steaming and roasting processes. Therefore, gamma-oryzanol exerts antiadipogenic activity by suppressing adipocyte differentiations and is stable in pigmented rice for an extended period of time during storage and after cooking. Thus, the intake of pigmented rice may be a useful strategy for preventing obesity.
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