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A4919 Sigma

Bovine Serum Albumin

heat shock fraction, protease free, low endotoxin, suitable for cell culture, pH 7, ≥98%

Synonym: Albumin bovine serum, BSA, Bovine albumin

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Properties

Related Categories Albumin, Albumins, Albumins and Transport Proteins, Albumins by Application, Biochemicals and Reagents,
product line   BioReagent
assay   ≥98%
form   lyophilized powder
mol wt   mol wt ~66 kDa
purified by   heat shock fractionation
packaging   poly bottle of
origin   USA origin
impurities   ≤1.0 EU/mg endotoxin
loss   ≤5%
pH   7
solubility   water: soluble (40 mg/ml)
suitability   suitable for cell culture
foreign activity   protease ≤0.005 U/mg
storage temp.   2-8°C

Description

Packaging

1, 5, 25, 100 g in poly bottle

Preparation Note

Prepared using heat shock fractionation

Serum albumin may be referred to as Fraction V. This naming convention is taken from the original Cohn method of fractionating serum proteins using cold ethanol precipitation. Serum albumin was found in the fifth ethanol fraction using Cohn′s method. Since then, the term "Fraction V" has been used by some to describe serum albumin regardless of the method of preparation. Others have used this term to describe serum albumin purified by ethanol fractionation methods that have been highly modified since the original Cohn method was described. Sigma-Aldrich manufactures and distributes serum albumins purified from a variety of primary methods including the true Cohn fractionation method, modified ethanol fractionation methods, heat shock and chromatography. Additional purification steps may include crystallization or charcoal filtration.

Biochem/physiol Actions

Certain conformational and primary-sequence epitopes of BSA are suspected allergens in human beef and milk allergies.

Protocols & Applications

Select the right albumin for your application with the Albumin Selection Guide

Price and Availability


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Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
Protocols & Articles

Related Content

Albumin in Cell Culture

Importance and uses of albumin in serum-free eucaryotic, including hybridoma and Chinese Hamster Ovary (CHO) cell cultures
Keywords: Cell culture, Culture media, Degradations, Hormones, Ligands, Oxidations, PAGE, Purification, Redox Reactions

Peer-Reviewed Papers
15

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