Yet-Oy Chang

Serosal accumulation of amino acids and hepatic lipid levels of rats fed several carbohydrates

Abstract The influence of the type of dietary carbohydrate on the in vitro serosal accumulation of amino acids in rat intestinal tissue was examined. In addition, the hepatic concentration of several classes of lipids was determined. 1. 1. Food consumption and body weight gains of rats fed raw potato starch were significantly higher than those fed cooked potato starch, cornstarch, sucrose, glucose, or dextrin. Rats fed sucrose exhibited significantly lower body weight gains than those on other treatments. 2. 2. The in vitro serosal accumulation of amino acids was lowest in rats fed raw potato starch and sucrose. These animals also exhibited the greatest and least weight of intestinal tissue per unit of length, respectively. There was little difference between other dietary treatments in terms of serosal accumulation rate, although the tissue of dextrin-fed rats tended to show a higher rate of passage. 3. 3. Significantly higher levels of total lipid, free cholesterol, and neutral fat were found in the hepatic tissue of rats fed sucrose. There were no treatment differences in the levels of total cholesterol, phospholipids, free fatty acids, or the activity of glucose-6-phosphate dehydrogenase or malate dehydrogenase.

Paper electrophoresis of serum in rats fed various carbohydrate diets.

Summary The effect of various carbohydrates on the serum protein and serum protein fractions in rats have been investigated. Without L-lysine supplementation, rats fed raw or cooked potato starch showed the lowest serum protein and serum albumin concentration; whereas rats fed glucose showed the highest serum albumin concentration. Lysine supplementation increased serum protein and serum albumin concentration in rats regardless of the sources of carbohydrates. The type of carbohydrate in the diet influences the serum protein pattern in rats,