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Merck
CN

A8011

Antifoam C Emulsion

aqueous-silicone emulsion

Synonym(s):

Antifoaming Agent Emulsion

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About This Item

NACRES:
NA.25
UNSPSC Code:
12161900
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biological source

synthetic

Quality Level

form

suspension

contains

emulsifier

technique(s)

cell culture | hybridoma: suitable, microbiological culture: suitable

viscosity

400 cP

mp

0  °C (32 °F)

density

1.01 g/mL

application(s)

(Supplement in culture media)

General description

Antifoam C emulsion is an aqueous emulsion containing 30% active silicone. This silicone-based antifoam emulsion consists of non-ionic emulsifiers different from those in antifoam emulsions B and Y-30. Antifoam C emulsion can be prediluted with 3-10 parts of cool water to aid in dispersion. Prediluted suspensions should be used immediately. Antifoam C emulsion is typically effective at 1-10 ppm. The flow properties of antifoam C emulsion are such that it can be pumped on an as-needed basis to a fermenter system with sufficient agitation to disperse the antifoam. Antifoam C emulsion can be used to regulate headspace foaming in mammalian cell culture bioreactors up to 30 ppm concentration.

Application

Antifoam C emulsion has been used:
  • as a supplement in RO-H2O and a chemically defined culture medium to determine volumetric mass transfer coefficient (kLa) of mammalian cell culture
  • as a component of feed medium,
  • as a steam-sterilized antifoaming agent in a biocontroller for pH-stat fed-batch cultivations
  • as a supplement in fed batch medium to mimic the typical large-scale cultivation conditions

Features and Benefits

  • Minimizes compatibility issues with biological systems
  • Highly effective defoamer at low concentrations
  • Highly effective and versatile silicone defoamer

Other Notes

A 30% aqueous emulsion of polydimethylsiloxane concentrate.
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pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter



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Bernhard Sissolak et al.
Biotechnology journal, 14(7), e1800714-e1800714 (2019-04-16)
Frequently measured mammalian cell culture process indicators include viability and total cell concentration (TCC). Cell lysis, an additional important process characteristic that substantially contributes to the overall product purity profiles, is often not addressed in detail. In the present study
Gang Fu et al.
Biotechnology and applied biochemistry, 67(5), 812-818 (2019-10-08)
d-Psicose 3-epimerase is an enzyme that catalyzes the synthesis of d-psicose from d-fructose. We cloned the d-psicose 3-epimerase from Ruminococcus sp. (RDPE) and expressed it in Bacillus subtilis A311. By a two-step pH regulation of segmented fermentation, we significantly improved
Characterizing the Effects of Antifoam C Emulsion on Oxygen Mass Transfer within the BIOne Drilled-Hole Sparger and Microsparger Single-Use Bioreactor Systems
McAndrew J and Kauffman G
American Pharmacy null



Global Trade Item Number

SKUGTIN
A8011-500ML04061833390993
A8011-250ML04061833390986