peptone

American  

[pep-tohn] / ˈpɛp toʊn /

noun

Biochemistry.

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

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peptone British  

/ pɛpˈtɒnɪk, ˈpɛptəʊn /

noun

1. biochem any of a group of compounds that form an intermediary group in the digestion of proteins to amino acids See also proteose

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Other Word Forms

• peptonelike adjective
• peptonic adjective
• peptonoid noun

Etymology

Origin of peptone

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

Example Sentences

Luciferin seems to be either a peptone or a proteose.

From Time Magazine Archive

A certain degree of non-specific immunity or increased tissue resistance may be produced locally, e.g. in the peritoneum, by injections of non-pathogenic organisms, peptone, nucleic acid and various other substances.

From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" by Various

Weigh out peptone, 5 grammes, and emulsify with about 200 c.c. of the hot fish water; incorporate thoroughly with the remainder of the fish water in the flask.

From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by Eyre, J. W. H. (John William Henry)

Grown on beef broth containing 5% glycerine, 1% peptone, sodium chloride; growths 6 to 8 weeks.

From Nurses' Papers on Tuberculosis : read before the Nurses' Study Circle of the Dispensary Department, Chicago Municipal Tuberculosis Sanitarium by Various

Add the peptone salt emulsion to the meat extract emulsion in the flask and add 650 c.c. distilled water.

From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by Eyre, J. W. H. (John William Henry)