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Peptone   Listen
noun
Peptone  n.  (Physiol. Chem.)
(a)
The soluble polypeptides produced by hydrolysis of protein; specifically the soluble peptides into which food is transformed by the action of the gastric and pancreatic juices. Peptones are also formed from protein matter by the action of boiling water and boiling dilute acids.
(b)
Collectively, in a broader sense, all the products resulting from the solution of proteinaceous matter in either gastric or pancreatic juice. In this case, however, intermediate products (albumose bodies), such as antialbumose, hemialbumose, etc., are mixed with the true peptones. Also termed albuminose. Note: Pure peptones are of three kinds, amphopeptone, antipeptone, and hemipeptone, and, unlike most proteins, are not precipitated by saturating their solutions with ammonium sulphate.






Collaborative International Dictionary of English 0.48








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"Peptone" Quotes from Famous Books



... not unfrequently considered important to test urine for the sodium salts of the conjugate biliary acids, taurocholic and glycocholic. Dr. Oliver, of Harrogate, has proposed the use of an acidulated peptone solution for this purpose, and the reaction is undoubtedly a good one. The reagent is prepared by dissolving 30 grains of flesh peptone, 4 grains of salicylic acid, and 30 minims of strong acetic acid, in sufficient water ...
— Scientific American Supplement, No. 611, September 17, 1887 • Various



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