STUDIES ON LIPASE
VIII. Milk-esterase and gastric lipase
1941 年 33 巻 2 号 p. 269-276
詳細
1941 年 33 巻 2 号 p. 269-276
1. The opitmal temperature of milk-esterase is 37deg;C and the optimal pH is 8.0.
2. The milk-esterase is present in human, horse, hog and dog milk, but in cow and goat milk it exists in inactive state and can be activated by the addition of a small amount of diluted ammonia.
3. The lipolytic action of milk-esterase is strongly inhibited by atoxyl, but not by quinine.
4. The lipolytic action of gastric lipase of man, human embryo, dog and rabbit is very strong, but in other mammals, birds and fishes it is weak.
5. The optimal pH of grastric lipase of rabbit is 7.8.
6. The gastric lipase of rabbit and cat splits tributyrin or methylbutyrate to a higher degree than olive oil.
7. The lipolytic action of gastric lipase in human embryo appears at the seventh or eighth month.
