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A5757

Sigma-Aldrich

Antifoam B Emulsion

aqueous-silicone emulsion

Synonym(s):

Antifoaming agent B

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About This Item

UNSPSC Code:
12161900
NACRES:
NA.25

Quality Level

200

form

emulsion

contains

emulsifier (different from those present in Antifoam A emulsion)

technique(s)

cell culture | hybridoma: suitable
microbiological culture: suitable

Related Categories

General description

Antifoam eliminates excessive foaming formed during impingement, due to proteins and/or carbohydrates in the collection medium. Antifoam B emulsion is a silicone based antifoam. Antifoam B emulsion does not affect the growth of bacteria. Antifoam B emulsion functions as an antifoaming agent in shake flask culture of bacteria.

Application

Antifoam B emulsion has been used:
  • to enhance collection efficiency in collection media
  • as a component in stress granule lysis buffer to reduce foaming, in host cell lysis buffer to reduce foaming caused by detergents
  • to improve solubility of antibiotics
  • as a foaming controls in bacterial growth media

Other Notes

A 10% aqueous emulsion of polydimethylsiloxane

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

>214.0 °F - closed cup

Flash Point(C)

> 101.1 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

A5757-VAR:
A5757-250ML:
A5757-100ML:
A5757-500ML:
A5757-BULK:

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX2792
MKCV6047
MKCW7753
MKCW3582
MKCV1361

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Fermentation pH modulates the size distributions and functional properties of Gluconobacter albidus TMW 2.1191 levan
Ua-Arak T, et al.
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Wheeler JR, et al.
Methods, 126, 12-17 (2017)
High-Throughput Quantification of Bacterial-Cell Interactions Using Virtual Colony Counts
Hoffmann S, et al.
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Separation of metabolic supply and demand: aerobic glycolysis as a normal physiological response to fluctuating energetic demands in the membrane
Epstein T, et al.
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Celeste J Brown et al.
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