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Any of various water-soluble protein derivatives formed by partial hydrolysis or digestion of proteins by an acid or enzyme, used in culture media in bacteriology.

[German Pepton, from Greek peptos, digested, from peptein, to digest; see pekw- in Indo-European roots.]

pep·ton′ic (-tŏn′ĭk) adj.


(Biochemistry) biochem any of a group of compounds that form an intermediary group in the digestion of proteins to amino acids. See also proteose
[C19: from German Pepton, from Greek pepton something digested, from peptein to digest]
peptonic adj


(ˈpɛp toʊn)

any of a class of diffusible, soluble substances into which proteins are converted by partial hydrolysis.
[1855–60; < German Pepton < Greek peptón, neuter of peptós cooked, digested, v. adj. of péptein]
pep•ton′ic (-ˈtɒn ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.peptone - any of various water-soluble compounds that form by hydrolysis in the digestion of proteins to amino acids
organic compound - any compound of carbon and another element or a radical


[ˈpeptəʊn] Npeptona f
References in classic literature ?
I won't say a word until I get some peptone into my arteries.
Tenders are invited for Purchase of Biosate Peptone, Pan creatic digest casein 65 percent and yeast extract 35 percent
In determining the optimal sources of nitrogen nutrition peptone, NaN[O.
It includes the company' s inhibitor-free Buffered Peptone Water, which supports the recovery of sublethally damaged organisms prior to further enrichment in media such as Rappaport Vassiliadis Broth, Mueller Kaufmann Tetrathionate Novobiocin Broth (MKTTn) and Selenite Broth.
The best media were buffered peptone water/SOC, NZYM, SDI RapidChek, EHEC8, Neogen Reveal 8, BAX, BAX-MP, and tryptic soy broth (TSB).
The following processing variables were chosen for the CCD experiments: glucose (A), peptone (B), and yeast extract (D).
After 20 hours of pre-enrichment in buffered peptone water, both protocols were sensitive enough to identify all positive samples.
The Lab M range now includes Listeria Isolation Medium, Oxford (ISO), Water Plate Count Agar (ISO) and Buffered Peptone Water (ISO).
One-gram samples of the heated seeds were diluted in peptone water and mascerated.
aOxoid Limited has extended the Oxoid range of products for the growth, isolation and identification of Vibrio cholerae and other Vibrio species to include Alkaline Peptone Water (CM1028).
Tenders are invited for Peptone Water, Pack Size- 500 Gms Per Pack
flavus as its formulation achieves a n optimal balance of peptone and yeast extract.