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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.
In order to investigate the effect of peptone feeding on transfection efficiency, based on our previous studies (unpublished data), three different sources of peptones with the greatest effect in the CD DG44 basal media were selected; Casein Tryptone Ni, Soy petone A2 SC and Soy peptone E110.
These include the new PREPTM Buffered Peptone Water (ISO), the first in a line of bagged, sterile dehydrated culture media that are made ready to use simply by adding water.
These include the pPREP Buffered Peptone Water (ISO), the first in a line of bagged, sterile dehydrated culture media that are made ready-to-use simply by adding water.
Skoog, 1962) containing different concentrations (see detail in Results section) of organic supplements including biotin (w/v), peptone (w/v), casein hydrolysate (w/v), yeast extract (w/v), coconut water (v/v), activated charcoal (w/v), sucrose (3%) and agar (7%).
The nutrient - called MB Peptone - can be used by anyone from drugs to biofuel manufacturers to speed up processes and create higher densities.
Among different fungal media screened, MGYP medium showed maximum surface plasmon intensity and symmetry in spectrum with peak at 440 nm followed by glucose peptone yeast broth peak at 446 nm.
Egg storing trays: A sterile cotton swab was used for isolation purpose where first of all this swab was wetted in sterilized normal saline solution to swabbed on egg storing tray surface and then re-immersed in 10 ml normal saline solution followed by transmission to 90 ml of buffered peptone water and incubation at 37degC for 18 hours.
MB established a commercial operation based on the sale of pet and livestock feed - at the lower end of value chain, but has the potential to develop a marine peptone for the fermentation market - the higher end of the value chain.
Twenty-five grams of each sample of pollen were diluted in 225 mL of peptone saline solution (1 g/L peptone and 8.5 g/L NaCl) and homogenized for 10 min by shaking in an orbitrary shaker (200 rpm).