Abstract
To determine the effect of the quality and quantity of dietary protein upon the enzymatic activities in the rats fed with high fat diet, we measured the body weight, the activity of serum alkaline phosphatase and of pancreatic lipase, and also the liver fat content in the rats feeding on the fat-free, low protein, methionine-added low protein, gelatin, protein-free diets and the control diet (casein 18%, soybean oil 40%) .
The activity of serum alkaline phosphatase decreased in the fat-free, protein-free and gelatin group, but it was not significantly different in the low protein and the methionine added groups from that of the control group. Inspite of high-fat feeding, the alkaline phosphatase activity in either of gelatin, or protein-free group decreased to the same degree as in the fat-free group.
The pancreatic lipase activity was lower in each group than fat-free group. There was no change, however, in the pancreatic lipase activity between fat-free group and the control, inspite of the high fat diet containing 40% soybean oil.
