A6582

Antifoam A concentrate

Name: Antifoam A concentrate
Brand: SIGMA
Price: 101 USD
Availability: InStock

active silicone polymer 100%

Synonym(s):

Antifoam agent, Antifoam solution, Foam control agent

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100 G

$101.00

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About This Item

UNSPSC Code:

12161901

NACRES:

NA.85

Key Documents

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Quality Level

200

form

emulsion (aqueous)

technique(s)

cell culture | hybridoma: suitable
microbiological culture: suitable

density

0.97 g/mL at 25 °C

application(s)

microbiology

storage temp.

room temp

suitability

(Mammalian (suspension))
bacteria (fermentation)

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This Item	A5633	A8582	A8311
Sigma-Aldrich A6582 Antifoam A concentrate	Sigma-Aldrich A5633 Antifoam A Concentrate	Sigma-Aldrich A8582 Antifoam SE-15	Sigma-Aldrich A8311 Antifoam 204
form emulsion (aqueous)	form suspension	form emulsion (aqueous)	form emulsion (aqueous)
application(s) microbiology	application(s) -	application(s) microbiology	application(s) microbiology
technique(s) cell culture \| hybridoma: suitable, microbiological culture: suitable	technique(s) cell culture \| mammalian: suitable, microbiological culture: suitable	technique(s) cell culture \| hybridoma: suitable	technique(s) -
suitability (Mammalian (suspension)), bacteria (fermentation)	suitability -	suitability (Mammalian (suspension)), bacteria (fermentation)	suitability (Mammalian (suspension)), bacteria (fermentation)
storage temp. room temp	storage temp. -	storage temp. room temp	storage temp. room temp
Quality Level 200	Quality Level 200	Quality Level 200	Quality Level 200

General description

Antifoam A is a silicone-based product used to prevent or minimize foaming in both microbial fermentation systems and mammalian suspension cultures. Control of foaming minimizes damage to the cells, resulting in increased protein/antibody production. Extremely effective for aqueous and non-aqueous systems. Effective at concentrations in the 1-50ppm range.

Application

Antifoam A concentrate has been used:

in bioreactor culture for Staphylococcal enterotoxin C (SEC) production.[1]
to prevent foam formation during the aerobic treatment of sludge. [2]
to study the impact of surface tension on bioaerosol generation during bubbling. [3]

Features and Benefits

Molecular biology grade and tested for use in bacterial fermentation.
Extremely effective foam suppressor for aqueous and non-aqueous systems.
Made of 100% active silicone polymer, free of emulsifiers.
Typically, effective at 1-100 ppm.
Product will be stable in the pH range of 5 to 9.
Can be directly added to a fermentation medium but it is not recommended that it be pumped to a fermenter on an as-needed basis.

Preparation Note

Antifoam A can be pre-diluted with 3-10 parts of aqueous propylene glycol or non-aqueous vegetable oil with slow mixing.

Other Notes

Antifoam A is a 100% active silicon polymer containing no non-ionic emulsifiers .

Related product

Product No.

Description

Pricing

A8082

Antifoam O-30

A8582

Antifoam SE-15, aqueous emulsion for bacterial and mammalian systems

A8311

Antifoam 204, aqueous emulsion for bacterial and mammalian systems

Pictograms

GHS09

signalword

Warning

hcodes

H410

pcodes

P273 - P391 - P501

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

>213.8 °F - closed cup

flash_point_c

> 101 °C - closed cup

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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The biodegradability of aquatic worm predated waste activated sludge: A sequential aerobic and anaerobic treatment approach

de Valk S, et al.

bioresource technology reports, 12.0, 100606-100606 (2020)

Bioaerosol Release from Concentrated Microbial Suspensions in Bubbling Processes

Kruglyakova E, et al.

Air quality, atmosphere, & health, 13.0, 2029-2029 (2022)

Release of stress proteins from Mesocestoides corti is a brefeldin A-inhibitable process: evidence for active export of stress proteins.

F P Ernani et al.

Infection and immunity, 61(6), 2596-2601 (1993-06-01)

Substantial evidence indicates that molecules released by infectious organisms affect virulence and influence immunity to infection. The characterization of extracellular molecules and their mechanism of release is therefore critical to understanding host-parasite relationships. The cestode parasite Mesocestoides corti is known

Enzymatic formation, stability, and spontaneous reactions of 4-fluoromuconolactone, a metabolite of the bacterial degradation of 4-fluorobenzoate.

M Schlömann et al.

Journal of bacteriology, 172(9), 5119-5129 (1990-09-01)

Enzymatic conversion of 4-fluorocatechol in the simultaneous presence of partially purified preparations of catechol 1,2-dioxygenase from Pseudomonas cepacia and muconate cycloisomerase from Alcaligenes eutrophus 335 yielded a product that was unambiguously identified as (+)-4-fluoromuconolactone [(+)-4-carboxymethyl-4-fluoro-but-2-en-4-olide]. This compound was shown to

Factors affecting staphylococcal enterotoxin C bovine production in milk

Hunt K, et al.

International dairy journal, 39(1), 41-46 (2014)

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