Effects of sterylglycosides from soybean on lipid indices in the plasma, liver, and feces of rats
1994
Tateo, M. (Nisshin Oil Mills Co. Ltd., Yokohama (Japan)) | Yoshikawa, M. | Takeuchi, H. | Fujii, S. | Mizobuchi, H. | Takeuchi, H.
The effects of soybean oil (SOO, control), soybean lecithin (SOL), and of sterylglycocides (STG) and phospholipids (PL) fractionated from SOL on lipid indices in the plasma, liver, and feces were examined for male Wistar rats fed with diets containing these lipids for 3 weeks. The body weight gain and liver weight decreased or tended to be reduced in the animals given the diet containing a 5% STG mixture (STGM) compared with the values in the other dietary groups. The plasma lipid concentration in general declined in the rats fed with the diets supplemented with 5% SOL, STGM, or the Pl mixture (PLM), and with 1% of STGM, acylated STG (ASTG), or non-acylated STG (NSTG). The triacylglycerol level was significantly depressed in the rats fed with the diet including 1 or 5% of STGM, ASTG, or NSTG when compared to the level of the SOO--fed animals. The total cholesterol and triacylglycerol contents in the liver were lower in the rats provided with the diets containing 5% of SOL, PC, or PLM than in the SOO- or STGM-diet-fed animals. The rats given the diets supplemented with 1 or 5% of STGM, ASTG, or NSTG had a decreased content of liver triacylglycerol compared with the content of the SOO-fed animals. The amounts of total lipids and total cholesterol excreted into the feces were higher in the rats fed with the diets supplemented with 5% SOL, or with 1% of STGM, ASTG, or NSTG, or especially with 5% STGM than in the SOO--fed animals. The present results suggest that STG suppressed the absorption of cholesterol and fatty acids in the intestines
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