peptone

[pep-tohn]

noun Biochemistry.

any of a class of diffusible, soluble substances into which proteins are converted by partial hydrolysis.

Origin of peptone

1855–60; < German Pepton < Greek peptón, neuter of peptós cooked, digested, verbid of péptein

Related formspep·tone·like, adjectivepep·ton·ic

[pep-ton-ik] /pɛpˈtɒn ɪk/, adjectivepep·to·noid

[pep-tuh-noid] /ˈpɛp təˌnɔɪd/, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for peptone

Historical Examples of peptone

Protein, under the same conditions, is changed to a peptone.
A Civic Biology
George William Hunter
Thus, 7.5 grammes of peptone dissolved in water in such proportion as to make a five per cent.
On Digestive Proteolysis
R. H. Chittenden
On the other hand, when peptone was introduced in larger quantity, viz., in a twenty per cent.
On Digestive Proteolysis
R. H. Chittenden
Further, it is not enough to admit the formation of a single intermediate body, midway between syntonin and peptone.
On Digestive Proteolysis
R. H. Chittenden
On now testing a portion of the clear filtrate for peptone by the biuret test, not a trace of a reaction could be obtained.
On Digestive Proteolysis
R. H. Chittenden

British Dictionary definitions for peptone

peptone

noun

biochem any of a group of compounds that form an intermediary group in the digestion of proteins to amino acidsSee also proteose

Derived Formspeptonic (pɛpˈtɒnɪk), adjective

Word Origin for peptone

C19: from German Pepton, from Greek pepton something digested, from peptein to digest

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for peptone

1860, from German Pepton, from Greek pepton, neuter of peptos "cooked, digested" (see peptic).

peptone in Medicine

peptone

[pĕp′tōn′]

Any of various soluble compounds that do not coagulate, are obtained by acid or enzyme hydrolysis of natural protein, and are used as nutrients in culture media.

Related formspep•ton′ic (-tŏn′ĭk) adj.