urobilin


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urobilin

(ˌjʊərəʊˈbaɪlɪn)
n
(Biochemistry) a brownish pigment found in faeces and sometimes in urine. It is formed by oxidation of urobilinogen, a colourless substance produced by bacterial degradation of the bile pigment bilirubin in the intestine
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Noun1.urobilin - brown bile pigment formed from urobilinogens and found in feces and in small amounts in urine
animal pigment - pigment occurring in animals
References in periodicals archive ?
Convert bilirubin to urobilinogen, some of which is reabsorbed and subjected to enterohepatic recirculation, while the rest is excreted through the kidneys as urobilin.
Application of fecal urobilin determination in clinical situations has been limited, however, because methods used for determining fecal urobilins require extensive sample pretreatment, such as solvent extraction and chemical derivatization [3].
The typical yellow-amber color is caused by urochrome and, to a lesser extent, uroerythrin or urobilin.