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Critical reviews in food science and nutrition

Thermal unfolding of beta-lactoglobulin, alpha-lactalbumin, and bovine serum albumin. A thermodynamic approach.


PMID 8841732

Abstract

Heat-treatment is one of the most commonly used processes in food preparation technology. An understanding of the thermodynamics of protein stability and of conformational changes of proteins, acquired through the measurement of the denaturation temperature, is therefore of particular importance. This paper attempts to shed light on the interpretation of recent calorimetric data on the thermal denaturation of bovine beta-lactoglobulin, alpha-lactalbumin, and bovine serum albumin by showing that thermodynamic parameters of heat-induced unfolding, measured by differential scanning calorimetry, are closely related to the prevailing chemical conditions such as pH, concentration of ions, protein purity, and protein concentration.

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L7252 Lactalbumin