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B3426

Millipore

Bile salts mixture

suitable for microbiology

Sinonimo/i:

Bile acids sodium salt, cholic acid-deoxycholic acid sodium salt mixture

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About This Item

Codice UNSPSC:
41106212
NACRES:
NA.74

Sterilità

non-sterile

Livello qualitativo

100

Forma fisica

powder

Confezionamento

pkg of 100 g

Perdita

≤6% loss on drying

Colore

yellow to brownish-yellow

pH

7±0.5

Solubilità

distilled water: freely soluble

applicazioni

microbiology

Temperatura di conservazione

10-30°C

Descrizione generale

Bile salts mixture is a combination of an organic sodium salt with a conjugate of any of the bile acids along with either glycine or taurine. Bile 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 inhibits Gram-positive bacteria and induced germination. It also inhibits the outgrowth of the germinated spores but does not interfere with the growth of Enterobacteriaceae.

Applicazioni

Bile salts mixture is recommended in diverse media like MacConkey Agar, SS Agar, and Violet Red Bile Agar. It increases the selectivity of the media to Enterobacteriaceae by inhibiting Gram-positive bacteria. It is used as a selective agent in culture media for the selective growth of intestinal bacteria like E. coli, other fecal coliforms, and fecal Streptococci. But it is also used as a selective agent in media for the detection of Yersinia enterocolitica, Aeromonas hydrophila, and Vibrio species.

Nota sulla preparazione

Extracted from purified, fresh bile.

Indicazioni di pericolo

H412

Consigli di prudenza

P273 - P501

Classi di pericolo

Aquatic Chronic 3

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

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Certificati d'analisi (COA)

Lot/Batch Number
MKCV7291
MKCW0820
MKCT7074
MKCV0244
MKCR5618

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Chhatra B Kunwar et al.
Microbiology (Reading, England), 166(12), 1149-1159 (2020-11-19)
Colonization of the gastrointestinal tract by enterohaemorrhagic Escherichia coli (EHEC) is critically dependent on its ability to sense and respond to various microenvironments within the host. EHEC exposure to physiologically relevant levels of bile salts upregulates the two-component system, pmrAB
Crystal Gadishaw-Lue et al.
Infection and immunity, 89(2) (2020-11-25)
During passage through the human gastrointestinal tract, enterohemorrhagic Escherichia coli (EHEC) is exposed to membrane-damaging bile in the small intestine. We previously reported that EHEC treatment with a physiological bile salt mixture upregulates basRS, encoding a two-component system, and arnBCADTEF

Articoli

Probiotics and Human Health

Probiotics exhibit an inhibitory effect on pathogens, help prevent chronic intestinal inflammatory diseases or atopic syndromes, and support the immune system.

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