esculin


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Related to esculin: Aesculin

esculin

[′es·kyə·lən]
(pharmacology)
C15H16O9 A substance extracted from the leaves and bark of the horse chestnut tree; used as a skin protectant.
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2]S production - Indole production - Hydrolysis ONPG + Esculin + Arginine nr Glucose oxidation + Acid production Sucrose + Inositol + Glucose + Raffinose + Mannitol + Sorbitol + Raffinose + Lactose + Maltose + Xylose + Ramnose + Malonate + Adonitol - Deamination Ornithine - Lysine + Citrate + Descarboxilation Arginine - pH change from acetamide - Fermentation on 2,4,4-trichloro-2-hydroxy- - diphenyllether Growth in presence of Polymrxma B - Urease + Triple-agar sugar iron + Table 4.
The metabolism esculin, arginine and citrate used and production of acetoine were also performed [20, 22-24].
The suspected isolates were further subjected to conventional biochemical test [Gram staining, oxidase, catalase, [beta]-hemolysis, bile esculin, and carbohydrate fermentation test (xylose, Mannitol, Rhamnose, Maltose, Inositol, and Sucrose)] as described previously [20].
Finally, an additional analysis towards ecYBDN suggested that YBDN genes were common in genomes of different bacterial organisms and exhibited a conserved molecular function to hydrolyze disaccharide, Esculin.
The catalase reaction was negative, and the esculin hydrolysis reaction was quickly positive.
With the objective of validation, the reactions in malonate, esculin and citrate media and growth in Mueller Hinton medium which did not include blood were evaluated.
The OmniLog also does not have crucial biochemical tests such as urea and esculin, which could be necessary to differentiate between species.
2013), the occurrence of cumarins content in Glucevia[R], including fraxin, fraxetin, esculin, esculetin, cichoriin, scopolin and fraxidin glucoside was quantified.
The selected isolates were investigated for various biochemical and physiological characteristics including, melanin production, utilization of nine different sugars as carbon source, formation of organic acids, utilization of organic acids and oxalate, hydrolysis of esculin, urease, amylase, lipase, hemolysin, tyrosine hydrolysis, gelatinase and indole production.
Esculin is used in microbiology culture media to reliably identify contamination from species such as streptococci and listeria, and so can be used to monitor food and water as well as the clinical testing of patients.
2 mm diameter, shiny, humid, convex, whole black edges surrounded by an esculin hydrolysis halo.