ENZYME PURIFICATION : FURTHER EXPERIMENTS WITH PANCREATIC AMYLASE

Purification and characterization of a-amylase from rat pancreatfic acinar carcinoma Comparison with pancreatic a-amylase

a-Amylase was purified to apparent homogeneity from normal pancreas and a transplantable pancreatic acinar carcinoma of the rat by affinity chromatography on a-glucohydrolase inhibitor (a-GHI) bound to aminohexyl-Sepharose 4B. Recovery was 95-100% for both pancreas and tumour a-amylases. They were monomeric proteins, with Mr approx. 54000 on SDS/polyacrylamide-gel electrophoresis. Isoelectric f...

Further Preliminary Experiments with Iidle

Purification of alpha amylase pdf

Effects of Different Levels of Supplementary Alpha-amylase on Digestive Enzyme Activities and Pancreatic Amylase mRNA Expression of Young Broilers*

Four hundred and forty 1-day-old Arbor Acre broilers were fed commercial starter diets with 0, 250, 750 and 2,250 mg/kg of an alpha-amylase preparation from 1 to 21 days of age to investigate the effects of an exogenous enzyme on growth performance, activities of digestive enzymes in the pancreas and anterior intestinal contents and pancreatic amylase mRNA expression. Body weight gain (BWG) and...

Selective deficiency of pancreatic amylase.

Two patients with specific pancreatic amylase deficiency are described. The greatly reduced pancreatic amylase activity was not due to an enzymatically inactive amylase molecule but to an almost complete absence of the molecule itself. The findings are of diagnostic importance as they show that low pancreatic amylase activity in serum or duodenal aspirates, or both, does not necessarily represe...