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Unhomogenized milk and cream contain butterfat in microscopic globules. These globules are surrounded by membranes made of phospholipids (fatty acid emulsifiers) and proteins, which prevent the fat in milk from pooling together into a single mass. Butter is produced by agitating cream, which damages these membranes and allows the milk fats to ...
Cassetty considers grass-fed butter and organic butter to be the healthiest butter because these options contain higher levels of omega-3 fatty acids and conjugated linoleic acid (CLA).
Triglycerides of butyric acid compose 3–4% of butter. When butter goes rancid, butyric acid is liberated from the glyceride by hydrolysis. [11] It is one of the fatty acid subgroup called short-chain fatty acids. Butyric acid is a typical carboxylic acid that reacts with bases and affects many metals. [12]
Structure of a triglyceride containing myristic, palmitic, and oleic acid. Butterfat is mainly composed of triglycerides. Each triglyceride contains three fatty acids. Butterfat triglycerides contain the following amounts of fatty acids (by mass fraction): [1] [2] [3]
The primary ingredient in butter is milk fat, although butter also contains saturated fats including lard and tallow which are solid at room temperature and mono- and polyunsaturated fats including olive oil and canola oil which are liquid at room temperature. [1] Butter hardness is a result of the percentage mix of those ingredients. [1]
Cocoa butter contains a high proportion of saturated fats also with the monounsaturated oleic acid in each triglyceride. The predominant triglycerides are POS, SOS, and POP, where P = palmitic, O = oleic, and S = stearic acid residues.
The Food and Drug Administration (FDA) recalled 79,200 lbs of Kirkland Signature butter - a dairy product made by churning milk or cream - due to an undeclared allergen in October.
In response, 2020 Libertarian vice presidential candidate Spike Cohen said, "80,000 pounds of Costco butter was just recalled, because the label doesn't say that it contains milk. It's butter."