Lipid hydrolysis animal fats

Steroids are complicated polycyclic molecules found in all plants and animals. They are classified as simple lipids because they do not undergo hydrolysis like fats, oils, and waxes do. Steroids encompass a wide variety of compounds, including hormones, emulsifiers, and components of membranes. Steroids are compounds whose structures are... 

TAGs serve as food stores and are therefore the most abmidant lipid in animals. They exist in most cell types but are especially prevalent in adipose tissue when they are known as depot fat. The hydrolysis of the ester bonds of TAGs and the release of glycerol and fatty acids from adipose tissue is referred to as fat mobilization. Depot fat is a water-free mixture of TAGs that differ from each other in the nature of the three fatty acyl groups which they contain. 

Triglycerides are the most abundant lipids in animals. They form depot fat, and hydrolysis of the ester bonds releases fatty acids and glycerol from adipose tissue. Phospholipids are the main stmctnral lipids in cell membranes, while glycoglycerolipids exist in cell membranes they are much less abimdant. 

Calcium salts of long-chain fatty acids (33.14) are the reaction products between calcium and long-chain fatty acids of vegetable and/or animal origin. They shall contain a maximum of 20% lipid not bound in the calcium salt form and the percent total fat shall be indicated. The unsaponifiable matter (exclusive of calcium salts) shall not exceed 4% and moisture shall not exceed 5%. If an antioxidant is used, its common name must be indicated on the label. Before conducting an assay for total fats, hydrolysis of the calcium salts should be performed to liberate the lipid fraction. 

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