Protalbumoses
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Protalbumoses are a type of primary albumose that are water-soluble, non-coagulable proteins that can be precipitated by ammonium sulfate and zinc sulfate. They are rapidly broken down by trypsin and erepsin to amino acids and are found in pepsin digests of proteins.
Encyclopedia entry (1928–1936)
Protalbumoses (a,/S) belong to the fraction of so-called primary albumoses (see). They are easily soluble in water, do not coagulate, and are precipitated by ammonium sulfate (at half-saturation) and zinc sulfate at acidic reaction. P. are white amorphous powders; from aqueous solutions they are precipitated by an equal, or even smaller, volume of alcohol. P. are rapidly broken down by trypsin and erepsin to amino acids, diffuse through parchment, and rotate the plane of polarized light to the left. P. are part of Witte's peptone, obtained by digesting fibrin with artificial gastric juice, and acidalbumin, obtained from pepsin digestion of protein substances; they are also formed from protein substances under the action of acids and alkalis.
Related articles
Cite this page
“Protalbumoses.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/protalbumoses/