Animal fat

Last updated
Lard
Reuzel.jpg
Wet-rendered lard, from pork fatback.
Fat composition
Saturated fats
Total saturated38–43%:
Palmitic acid: 25–28%
Stearic acid: 12–14%
Myristic acid: 1%
Unsaturated fats
Total unsaturated56–62%
Monounsaturated 47–50%:
Oleic acid: 44–47%
Palmitoleic acid: 3%
Polyunsaturated Linoleic acid: 6–10% [1]
Properties
Food energy per 100 g (3.5 oz)3,770 kJ (900 kcal)
Melting point backfat: 30–40 °C (86–104 °F)
leaf fat: 43–48 °C (109–118 °F)
mixed fat: 36–45 °C (97–113 °F)
Smoke point 121–218 °C (250–424 °F)
Specific gravity at 20 °C (68 °F)0.917–0.938
Iodine value 45–75
Acid value 3.4
Saponification value 190–205
Unsaponifiable 0.8%

Animal fats and oils are lipids derived from animals: oils are liquid at room temperature, and fats are solid. Chemically, both fats and oils are composed of triglycerides. Although many animal parts and secretions may yield oil, in commercial practice, oil is extracted primarily from rendered tissue fats from livestock animals like pigs, chickens and cows. Dairy products yield animal fat and oil products such as butter.

Contents

Certain fats, such as goose fat, have a higher smoke point than other animal fats, but are still lower than many vegetable oils such as olive or avocado. [2]

Animal fats are commonly consumed as part of a western diet in their semi-solid form as either milk, butter, lard, schmaltz, and dripping or more commonly as filler in factory-produced meat, and fast-food products. [3]

Culinary uses

Many animal fats and oils are consumed directly, or indirectly as ingredients in food. The oils serve a number of purposes in this role:

Secondly, oils can be heated, and used to cook foods. Suitability for this purpose depends on flash point.

See also

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References

  1. National Research Council. (1976). Fat Content and Composition of Animal Products.; p. 203. Washington, DC: Printing and Publishing Office, National Academy of Science. ISBN   0-309-02440-4
  2. The Goose Fat Information Service, Goosefat.co.uk, 2012-03-19, retrieved 2012-03-19
  3. Meat Products with High Levels of Extenders and Fillers, Food and Agricultural Organization of the United States, archived from the original on 2019-02-07, retrieved 2012-03-16