Native Bovine Milk β-Lactoglobulin (BLG)

β-Lactoglobulin (BLG) is the major whey protein of cow and sheep's milk. Its amino acid sequence and 3-dimensional structure show that it is a lipocalin, a very diverse family, most of which bind small hydrophobic ligands and can thus act as specific transporters. Due to its abundance and ease of purification, β-lactoglobulin is of interest to the food industry. Its properties can be advantageous or disadvantageous in dairy products and processing.