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peptone    
n. 胨

□

peptone
n 1: any of various water-soluble compounds that form by
hydrolysis in the digestion of proteins to amino acids

Peptone \Pep"tone\, n. [Gr. pepto`s cooked.] (Physiol. Chem.)
(a) 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.
(b) Collectively, in a broader sense, all the products
resulting from the solution of proteinaceous matter in
either gastric or pancreatic juice. In this case,
however, intermediate products (albumose bodies), such as
antialbumose, hemialbumose, etc., are mixed with the true
peptones. Also termed albuminose.
[1913 Webster PJC]

Note: Pure peptones are of three kinds, amphopeptone,
antipeptone, and hemipeptone, and, unlike most
proteins, are not precipitated by saturating their
solutions with ammonium sulphate.
[1913 Webster]


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  • biochemistry - Difference between Peptone, Peptide and Proteose . . .
    In my school textbook, it is given that Pepsin converts proteins to peptones, proteose and peptides What is the difference between the three products? On googling the terms, the definition was s
  • Is there any alternative to peptone and beef or yeast extract?
    I would like to create my own nutrient agar using the recipe below, but I do not have peptone I found a paper that seems to be using extruded beans instead of peptone and beef or yeast extract Is possible to edit the recipe below and use extruded beans instead of peptone and beef or yeast extract?
  • What is bacto peptone? - Biology Stack Exchange
    Standard recipes for yeast medium often include "bacto-peptone" Is this the same as bacteriological peptone? Is there an authoritative source that spells it out?
  • Is it essential to add cholesterol to agar or liquid culture for C . . .
    And without supplementing there is enough in the peptone and yeast extract to already I wonder if this stuff is only essential for cholesterol biosynthesis studies?
  • Is casein hydrolysate the same thing as casamino acids?
    Roughly, yes they are similar, but there are processing differences- the real difference is filtering A product containing simply casein hydrosylate will only be roughly filtered with lots of peptides (like body builder products) Whereas casamino acids should be primarily clean free amino acids (like nutrients for bacteria) The actual manufacturing methods will be proprietary for the
  • Does yeast grow on LB agar plates? - Biology Stack Exchange
    Not well, they need dextrose Use YBT: 20 g Casein Peptone Tpe-M 10 g Yeast Extract 20 g Dextrose 17 g Agar q s to 975 mls in di-water pH to 6 2 w 5M NaOH q s to 1L with di-water Autoclave for 45 min at 121C Aseptically dispense in Petri dishes Store at 4C for up to 12 weeks If you want to grow Co-culture do so in LB supplemented with 20g L Dex
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    So I'm an intern in a lab and I do a lot of PCR and agarose gel electrophoresis but I keep having these weird bands on the entire or only some part of my gels (not always but often) And I didn't h
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    Thanks for informative comment I am not from biology background so your comment helped Now what I meant by standardization is that what conjugate to use and incubation times are not standardized for some tests Because of this, extinction coefficients are not known So the lab depends on calibrators given in the kit Calibrators have specified units and using that curve is fitted Based on
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    Reading about lichens, I came upon mentions of Pleurococcus, a genus of green algae which are symbionts in some lichens but can also be found growing bare on tree bark and rocks Other algae which
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    I found this bone in Auvergne as a child This specific area is apparently well-known to paleontologists and I found the bone in a field very close to scientific excavations (literally meters away





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