48305

Gallensalze Natriumsalz

suitable for microbiology

• Synonym(e): Cholsäure-Deoxycholsäure Natriumsalz Mischung
• MDL-Nummer: MFCD00130648
• UNSPSC-Code: 41106212
• NACRES: NA.85

Eigenschaften

• Beschreibung: anionic
• Qualitätsniveau: 200
• Sterilität: non-sterile
• Assay: 40-60% (Cholic Acid ; approximately 50% sodium cholate and approximately 50% sodium deoxycholate, HPLC)
• Form: powder
• Zusammensetzung: cholic acid sodium salt, ~50% ; deoxycholic acid sodium salt, ~50%
• Verunreinigungen: ≤5% water
• Verlust: ≤5% loss on drying (water)
• Löslichkeit: H₂O: 0.1 g/mL, clear, faintly yellow
• Anwendung(en): microbiology
• Lagertemp.: 10-30°C

Beschreibung

Allgemeine Beschreibung

Bile salt is an organic sodium salt with a conjugate of any of the bile acids along with either glycine or taurine. Biles salts are composed of four different kinds of bile acids - cholic, deoxycholic, chenodeoxycholic and lithocholic acids.
Bile salts are extracted under controlled conditions from purified fresh bile, to be used in bacteriological culture media, where it behaves as a selective inhibitory agent that enables isolation and identification of pathogens. For example, in MacConkey Agar/Broth.

Anwendung

Bile salts may be used as one of the selective agents to prevent the growth of injured Escherichia coli cells, in an experiment done in order to identify the specific agent in the selective media which would inhibit the growth of the injured Escherichia coli ML30 cells. It may also be used for identification of isolates of Vibrio (Beneckea) vulnificus which is a halophilic bacterium, found responsible for causing several human infections.

Biochem./physiol. Wirkung

Bile salts are surface-active steroid compounds and their primary physiological function is to aid in the digestion of lipophilic nutrients in intestinal tracts of vertebrates.

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type N95 (US)