Definitions
Century Dictionary and Cyclopedia
- n. Tyrosin is p-oxyphenyl-propionic acid, —C6H4(OH).CH2.CH(NH2)COOH. It is obtained from nearly all albumins on hydrolytic decomposition by means of acids, alkalis, and the proteolytic ferments. It is supposed that a tyrosin radical exists as such in all those substances from which it is obtainable on decomposition.
- n. A white crystalline body, odorless, and insoluble in cold water, having the formula C9H11NO3. It is an amido-acid, and forms salts with both acids and bases. It is a product of the decomposition of proteids, either by the ferment trypsin, by putrefaction, or by boiling with acids.
Wiktionary
- n. Alternative form of tyrosine.
GNU Webster's 1913
- n. (Physiol. Chem.) A white crystalline nitrogenous substance present in small amount in the pancreas and spleen, and formed in large quantity from the decomposition of proteid matter by various means, -- as by pancreatic digestion, by putrefaction as of cheese, by the action of boiling acids, etc. Chemically, it consists of oxyphenol and amidopropionic acid, and by decomposition yields oxybenzoic acid, or some other benzol derivative.
Examples
“When it is discharged into the duodenum, it changes the fats into so fine an emulsion (chyle) that the microscopically fine drops of fat may be drawn into the orifices of the lymph canals and conveyed to the circulatory system, and the cleavage products of albumen produced by gastric digestion, the peptones (leucin and tyrosin) are carried along with them for the renewal of tissue cells consumed in respiration.”
Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration
“Leucin, tyrosin, lithic acid, lithates, xanthin, cystin, keratin, sulphureted hydrogen, etc., are deposits in the urine and are signs of the derangement of the intestinal canal and liver.”
“Wolff, _glycin_, _tyrosin_, and _kreatin_ are able to be assimilated by the plant.”
“In these digestive fermentations, the chemical transformations are profound, the complex proteid molecule being broken down into albumoses, peptones, amido-acids (tyrosin and leucin) and ammonia as well as fatty acids.”
Outlines of Dairy Bacteriology, 8th edition A Concise Manual for the Use of Students in Dairying
“On a priori grounds we should expect alcohol to be oxidized in the liver along with leucin, tyrosin, uric acid, xanthin bodies, and various amido bodies.”
Alcohol: A Dangerous and Unnecessary Medicine, How and Why What Medical Writers Say
“TCM for the treatment of the metabolic syndrome focusing on particular enzymatic targets such as protein tyrosin phosphatase - 1B (which is associated with the development of diabetes).”
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