Adaptability of pancreatic enzymes activity to various food nutritive values in man. Influence of high protein diet

Bucko, A; Kopec, Z; Ovečka, Miroslav; Grunt, Jerome A.

doi:10.1002/food.19820260109

Cited by 4 publications

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“…Each enzyme behaves differently, depending on the amount and the type of substrate ingested. In rat (Keim, 1986), pig (Corring, 1979) or man (Bucko et al 1982), trypsin (EC 3.4.21 .4) and chymotrypsin (EC 3.4.21.1) activities increase with a protein-rich diet, chymotrypsin being more sensitive to this dietary modulation. Giorgi et at.…”

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Effects of diets containing casein and rapeseed on enzyme secretion from the exocrine pancreas in the pig

et al. 1992

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The effect of dietary protein on enzyme activity of pancreatic juice was studied in ten growing, castrated, Large White male pigs. Animals, fitted with permanent cannulas in the pancreatic duct and in the duodenum, were divided into two groups receiving either casein or rapeseed concentrate as a protein source. After a 15 d adaptation period to the experimental diet, the volume of pancreatic secretion was significantly higher, whereas the protein concentration was lower in the casein group compared with the rapeseed group. No statistical difference was observed in the daily protein output between groups. Total secreted activities of carboxypeptidase A (EC 3.4.17. l), and elastase (EC 3.4.21.36) were higher in the casein group during the nocturnal period, whereas total activities of trypsin (EC 3.4.21.4), chymotrypsin (EC3.4.21.1), carboxypeptidase B (EC3.4.17.2) and amylase (EC3.2.1.1) in pancreatic secretions during the post-prandial periods were increased by the ingestion of the rapeseed diet. It is concluded that the pancreatic enzyme secretion is sensitive to the nature of the protein ingested.

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confidence: 99%