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Pepsin   Listen
noun
Pepsin  n.  (Physiol. Chem.) A proteolytic enzyme (MW 34,500) contained in the secretory glands of the stomach. In the gastric juice it is united with dilute hydrochloric acid (0.2 per cent, approximately) and the two together constitute the active portion of the digestive fluid. It degrades proteins to proteoses and peptides, and is notable for having a very low pH optimum for its activity. It is the active agent in the gastric juice of all animals. Note: As prepared from the glandular layer of pigs' or calves' stomachs it constitutes an important article of pharmacy.






Collaborative International Dictionary of English 0.48








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"Pepsin" Quotes from Famous Books



... Brown had ought to give her half of what he makes doctorin'; she's more help than all the medicine ever he gives. I never saw a doctor so dretful stingy with his stuff. Why, I've ben perishin' sometimes for want o' doctorin', and all he'd give me was a little pepsin, or tell me to take as much sody as would lay on the p'int of a penknife, or some such thing,—not so much as you'd give to a canary-bird. I do sometimes wish we had a doctor who knew the use o' medicine, 'stead of everlastin'ly talkin' about the laws o' health, and hulsome food, ...
— Melody - The Story of a Child • Laura E. Richards



Words linked to "Pepsin" :   gastric acid, enzyme



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