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peptone

Definitions

  • WordNet 3.6
    • n peptone any of various water-soluble compounds that form by hydrolysis in the digestion of proteins to amino acids
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Webster's Revised Unabridged Dictionary
    • n Peptone (Physiol. Chem) 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.☞ Pure peptones are of three kinds, amphopeptone antipeptone, and hemipeptone, and, unlike most proteins, are not precipitated by saturating their solutions with ammonium sulphate.
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Century Dictionary and Cyclopedia
    • n peptone The general name of a class of albuminoids into which the nitrogenous elements of food (such as albumin, fibrin, casein, etc.) are converted by the action of the gastric or of the pancreatic juice. This conversion is caused by the action of the chemical ferment pepsin, which is present in the gastric juice, or of trypsin present in the pancreatic juice. The chief points of difference between peptones and other proteids are that peptones are not precipitated by potassium ferrocyanide and acetic acid, are not coagulated by heat, and are very readily diffusible through membranes.
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Chambers's Twentieth Century Dictionary
    • ns Peptone one of a class of albumenoids formed by the action of the chemical ferment pepsin and hydrochloric acid, the latter first converting into a syntonin or acid protein, the former converting this syntonin into peptone—they are soluble in water, are not coagulated by boiling, and pass readily through an animal membrane, being therefore easily absorbed
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Etymology

Webster's Revised Unabridged Dictionary
Gr. pepto`s cooked
Chambers's Twentieth Century Dictionary
Fr.,—Gr. pepsis, digestion—peptein, to digest.

Usage

In literature:

If Pepton could have arranged matters to suit himself, he would have been born an archer.
"The Magic Egg and Other Stories" by Frank Stockton
It is absorbed entire either in its natural state or in form of peptone.
"Scientific American Supplement, No. 392, July 7, 1883" by Various
The peptonized milk has a peculiar odor and bitter taste.
"A Practical Physiology" by Albert F. Blaisdell
Other well-cooked gruels maybe peptonized in the same way.
"Science in the Kitchen." by Mrs. E. E. Kellogg
If the child is already upon a milk diet, this should be diluted, and in some cases partially peptonized.
"The Care and Feeding of Children" by L. Emmett Holt
In peptonizing, the directions which accompany the powders to be used for that purpose should be followed carefully.
"Fat and Blood" by S. Weir Mitchell
It no longer requires peptonized drama.
"The Onlooker, Volume 1, Part 2" by Various
Thus prepared, the peptone shows no signs of decomposition on keeping.
"Scientific American Supplement, No. 611, September 17, 1887" by Various
Peptonized milk, II, 262.
"The Eugenic Marriage, Volume I. (of IV.)" by W. Grant Hague, M.D.
Another modification which at times may be ordered by your physician is peptonized milk.
"The Mother and Her Child" by William S. Sadler
The best food by the rectum is plain peptonized milk.
"The Eugenic Marriage, Volume IV. (of IV.)" by Grant Hague
Peptone: a soluble proteid compound produced by the digestion of albummenoid food substances.
"Explanation of Terms Used in Entomology" by John. B. Smith
Fairchild's Peptonizing Powder is used for this purpose.
"The Eugenic Marriage, Vol 2 (of 4)" by W. Grant Hague
Their meats must be strange and peptonized.
"A Poor Man's House" by Stephen Sydney Reynolds
Weigh out and mix 10 grammes of peptone, 5 grammes of salt, and make into a thick paste with 150 c.c.
"The Elements of Bacteriological Technique" by John William Henry Eyre
Keep the water at this temperature for 5 to 10 minutes or longer according to the degree of peptonization desired.
"Dietetics for Nurses" by Fairfax T. Proudfit
He epitomized and peptonized his knowledge on all subjects to suit her intellectual digestion.
"The Westerners" by Stewart Edward White
Dieterich's solution of peptonated iron contains about 2 gr.
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 7" by Various
Protein, under the same conditions, is changed to a peptone.
"A Civic Biology" by George William Hunter
They produce no visible sign of peptonization.
"The Book of Cheese" by Charles Thom and Walter Warner Fisk
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