脂质的构成、功能及分析 The composition, function and analysis of lipids 脂质的消化与吸收 Digestion and Absorption of Lipids 甘油三酯的代谢 Metabolism of Triglyceride 磷脂的代谢 Metabolism of Phospholipid 胆固醇代谢 Metabolism of Cholesterol 血浆脂蛋白代谢 Metabolism of Lipoprotein
4.7.I Occurrence and microheterogeneity B-Lactoglobulin is a major protein in bovine milk, representing about 50% of total whey protein and 12% of the total protein of milk. It was among the first proteins to be crystallized, and since crystallizability was long considered to be a good criterion of homogeneity, B-Ig, which is a typical
The milks of all mammals contain lipids but the concentration varies widely between species from c. 2% to greater than 50%(Table 3. 1). The principal function of dietary lipids is to serve as a source of energy for the neonate and the fat content in milk largely reflects the energy requirements of the species, e.g. land animals indigenous to cold environments and marine