New Zealand Origin Bovine Serum Albumins

Concerns and international regulations may dictate the requirement for bovine albumin originating from countries designated as being free of Bovine Spongiform Encephalitis (BSE). Sigma offers New Zealand sourced bovine serum albumins prepared by chromatography, heat shock and ethanol/heat shock methods.

Chromatographically Purified

Chromatographic purification of albumin typically yields a more highly conserved native protein conformation than the ethanol and heat shock fractionation methods.

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A2058 Bovine Serum Albumin lyophilized powder, essentially IgG-free, low endotoxin, BioReagent, suitable for cell culture
A1933 Bovine Serum Albumin chromatographically purified, New Zealand origin, low endotoxin, suitable for cell culture, pH 7, ≥98%
A9306 Bovine Serum Albumin lyophilized powder, low endotoxin, ≥95% (agarose gel electrophoresis)
A3675 Bovine Serum Albumin lyophilized powder, low endotoxin, ≥98% (agarose gel electrophoresis)
A4737 Bovine Serum Albumin lyophilized powder, protease, essentially free, ≥98% (agarose gel electrophoresis)
A4612 Bovine Serum Albumin lyophilized powder, Essentially fatty acid free

Heat Shock Fractionated

The heat shock fractionation process of heat and pH adjustment relies on the addition of a protein stabilizer. This addition allows the albumin to tolerate the increased temperature of > 65°C. Most other plasma proteins denature and precipitate during this process yielding an albumin with increased purity.

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A3733 Bovine Serum Albumin lyophilized powder, ≥98% (agarose gel electrophoresis)
A3983 Bovine Serum Albumin lyophilized powder, essentially γ-globulin free, ≥98% (agarose gel electrophoresis)
A3608 Bovine Serum Albumin lyophilized powder, ≥96% (agarose gel electrophoresis)
A3858 Bovine Serum Albumin lyophilized powder, Protease, essentially free, ≥98% (agarose gel electrophoresis)