Effects of Stabilized Rice Bran on Obesity and Antioxidative Enzyme Activity in High Fat Diet-induced Obese C57BL/6 Mice
2014
Kim, J.Y., Chonnam National University, Gwangju, Republic of Korea | Shin, M.S., Chonnam National University, Gwangju, Republic of Korea | Heo, Y.R., Chonnam National University, Gwangju, Republic of Korea
Rice bran (RB), a by-product obtained during polishing of un-milled rice, contains a large quantity of essential nutrients such as minerals, vitamins, fiber, amino acids, and antioxidants. In this study, the anti-obesity effects of stabilized RB addition as a food material in a diet-induced obese animal model were investigated. For the analysis, a total of 32 mice were randomly divided into four groups: normal diet group (ND, n=8), high-fat diet group (HFD, n=8), 20% RB added high fat diet group (HFRB20, n=8), and 40% RB added high fat diet group (HFRB40, n=8). The animals were sacrificed after 7 weeks. Body weight gain, various adipose tissue weights, blood glucose concentration, and serum leptin level of the HFRB40 group were found to be significantly lower than those of the HFD group. Moreover, antioxidant enzyme activity of the HFRB40 group was significantly higher than that of the HFD group. However, the HFRB20 group did not show significantly different values. The results of this study show that RB (40%) addition reduces body weight gain and improves obesity-related parameters. These results suggest RB could be considered as a functional additive material for the manufacture of anti-obesity products, and 40% RB addition would be the physiologically effective level.
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