Excerpt from Progressive Medicine, Vol. 4: A Quarterly Digest of Advances, Discoveries and Improvements in the Medical and Surgical Sciences; December, 1921
The Action of Saliva on Starch in the Presence of the Gastric and Pan creatic Secretions. Pastore's5 series of experime... nts were carried out to show the effect of saliva in the presence of the gastric and pancreatic juices of dogs and also the gastric and pancreatic extracts of men. The first series of cases shows the pronounced action of human saliva on starch in mild alkaline concentration, even to a dilution of one in eight thousand; but above this dilution digestion cannot proceed without neutralization. A concentration of one in two thousand always destroys the amylolytic power when ptyalin is present with hydrochloric acid alone.
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