All rights reserved. Terms of use. Â¨ 37 11 Thermodynamics andThermochemistry Thermodynamics is the study of heat, and how heat can be interconverted into other energyforms. In thermodynamics the system is a specific part of the universe that is being studied,often the system is a chemical reaction. The surroundings are all parts of the universe that arenot the system, typically everything outside the test tube.Â¥ An open system can exchange both energy and matter with its surroundings.
Pepsin has been used as a substitute for rennin in the production of certain cheeses. Treatment of hides. Pepsin is used by the leather industry to remove undesirable traces of remaining tissue, such as hair and fat, from partially processed hides. This enzymatic treatment is called âbatingâ the hides.
Pepsin. Definition. noun, plural: pepsins or pepsine. A proteolytic enzyme in the gastric juice of birds, reptiles, fish, and mammals that partially digest dietary proteins into simpler, shorter chains of amino acids such as proteoses and peptones in the presence of hydrochloric acid. Supplement.Pepsin is capable of digesting many proteins from the food except protamine, keratin, and other highly glycosylated proteins. It is converted from pepsinogen that is released from the gastic pits of the stomach.The conversion of pepsinogen into pepsin occurs in the presence of hydrochloric acid or by the action of another pepsin in the gastric juice. Word origin: Greek pepsis (digestion), from peptein (to digest). Related term(s): 1  Propepsin.2  Peptic.upplement. Pepsin is capable of digesting many proteins from the food except protamine, keratin, and other highly glycosylated proteins. It is converted from pepsinogen that is released from the gastic pits of the stomach.