Effects of Dietary Diacylglycerol on the Energy Metabolism
2006
In the present study, we characterized diacylglycerol (DAG) oil in terms of energy metabolism by comparing oxygen consumption and respiratory quotient (RQ), as well as blood parameters, in rats after administration of emulsions containing either DAG or triacylglycerol (TAG) with similar fatty acid composition. Twelve male Wistar rats (250–280 g) were acclimatized, and then catheterized into the stomach, and held individually in Bollman restraining cages. After 24 hours fasting, each emulsion containing either DAG or TAG (10 g/kg body weight) was infused. Oxygen consumption and fat oxidation in the DAG group gradually increased after administration of the DAG emulsion and became significantly higher than those of the TAG group. RQ in both groups dropped after administration of emulsion, but the values of the DAG group were significantly lower than that of the TAG group. The postprandial serum triglyceride level was significantly increased from 60 minutes after administration in the TAG group, and 240 minut...
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