Effects of Cabbage Leaf Protein Concentrate on the Serum and Liver Lipid Concentrations in Rats

Abstract

The effects of cabbage leaf protein concentrate (CLPC) on serum and liver lipid concentrations were determined in rats fed choles-terol-enriched and cholesterol-free diets. In rats fed the cholesterol-enriched diet with CLPC, total cholesterol, triacylglycerol and phospholi-pid concentrations in both the serum and liver, as well as the atherogenic index diet were significantly lower than those of the rats fed a casein diet. A supplement of methionine to the CLPC diet raised serum HDL-cholesterol and body weight gain, indicating that the addition of methio-nine to the CLPC diet is not only available to improve the nutritive value of CLPC but also to lower the atherogenic index. In rats fed the cholesterol-free diet, the liver total cholesterol and triacylglycerol concen-trations of the CLPC-fed rats also showed lower values than those of the easein-fed rats, however, the serum total cholesterol concentration of the CLPC-fed rats did not differ from that of the casein-fed rats.