产品描述： Preparation Note 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.