Fat composition | |
---|---|
Saturated fats | |
Total saturated | 38–43%: Palmitic acid: 25–28% Stearic acid: 12–14% Myristic acid: 1% |
Unsaturated fats | |
Total unsaturated | 56–62% |
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.
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]
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.
Vegetarian cuisine is based on food that meets vegetarian standards by not including meat and animal tissue products.
Sautéing or sauteing is a method of cooking that uses a relatively small amount of oil or fat in a shallow pan over relatively high heat. Various sauté methods exist.
A triglyceride is an ester derived from glycerol and three fatty acids. Triglycerides are the main constituents of body fat in humans and other vertebrates as well as vegetable fat. They are also present in the blood to enable the bidirectional transference of adipose fat and blood glucose from the liver and are a major component of human skin oils.
Vegetable oils, or vegetable fats, are oils extracted from seeds or from other parts of edible plants. Like animal fats, vegetable fats are mixtures of triglycerides. Soybean oil, grape seed oil, and cocoa butter are examples of seed oils, or fats from seeds. Olive oil, palm oil, and rice bran oil are examples of fats from other parts of plants. In common usage, vegetable oil may refer exclusively to vegetable fats which are liquid at room temperature. Vegetable oils are usually edible.
Margarine is a spread used for flavoring, baking, and cooking. It is most often used as a substitute for butter. Although originally made from animal fats, most margarine consumed today is made from vegetable oil. The spread was originally named oleomargarine from Latin for oleum and Greek margarite. The name was later shortened to margarine.
Shortening is any fat that is a solid at room temperature and is used to make crumbly pastry and other food products.
Cocoa butter, also called theobroma oil, is a pale-yellow, edible fat extracted from the cocoa bean. It is used to make chocolate, as well as some ointments, toiletries, and pharmaceuticals. Cocoa butter has a cocoa flavor and aroma. Its melting point is slightly below human body temperature. It is an essential ingredient of chocolate and related confectionary products. Cocoa butter does not contain butter or other animal products; it is vegan.
Schmaltz is rendered (clarified) chicken or goose fat. It is an integral part of traditional Ashkenazi Jewish cuisine, where it has been used for centuries in a wide array of dishes, such as chicken soup, latkes, matzah brei, chopped liver, matzah balls, fried chicken, and many others, as a cooking fat, spread, or flavor enhancer.
Crisco is an American brand of shortening that is produced by B&G Foods. Introduced in June 1911 by Procter & Gamble, it was the first shortening to be made entirely of vegetable oil, originally cottonseed oil. Additional products marketed under the Crisco brand include a cooking spray, various olive oils, and other cooking oils, including canola, corn, peanut, sunflower, and blended oils.
Quick bread is any bread leavened with a chemical leavening agent rather than a biological one like yeast or sourdough starter. An advantage of quick breads is their ability to be prepared quickly and reliably, without requiring the time-consuming skilled labor and the climate control needed for traditional yeast breads.
The following outline is provided as an overview of and topical guide to the preparation of food:
An oil is any nonpolar chemical substance that is composed primarily of hydrocarbons and is hydrophobic and lipophilic. Oils are usually flammable and surface active. Most oils are unsaturated lipids that are liquid at room temperature.
Plant oils or vegetable oils are oils derived from plant sources, as opposed to animal fats or petroleum. There are three primary types of plant oil, differing both the means of extracting the relevant parts of the plant, and in the nature of the resulting oil:
Chocolate is a food made from roasted and ground cocoa beans mixed with fat and powdered sugar to produce a solid confectionery. There are several types of chocolate, classified primarily according to the proportion of cocoa and fat content used in a particular formulation.
Vegetable oil is a liquid derived from plants. These are triglyceride-based, and includes cooking oils like sunflower oil, solid oils like cocoa butter, oils used in paint like linseed oil and oils for industrial purposes, including as biofuels.
Lard is a semi-solid white fat product obtained by rendering the fatty tissue of a pig. It is distinguished from tallow, a similar product derived from fat of cattle or sheep.
Mono- and diglycerides of fatty acids (E471) refers to a naturally occurring class of food additive composed of diglycerides and monoglycerides used as an emulsifier in foods such as infant formula, fresh pasta, jams and jellies, chocolate, creams, baked goods, and more. It is also used as a fruit coating agent. This mixture is also sometimes referred to as partial glycerides.
Cooking oil is a plant or animal liquid fat used in frying, baking, and other types of cooking. Oil allows higher cooking temperatures than water, making cooking faster and more flavorful, while likewise distributing heat, reducing burning and uneven cooking. It sometimes imparts its own flavor. Cooking oil is also used in food preparation and flavoring not involving heat, such as salad dressings and bread dips.
Fat hydrogenation is the process of combining unsaturated fat with hydrogen in order to partially or completely convert it into saturated fat. Typically this hydrogenation is done with liquid vegetable oils resulting in solid or semi-solid fats.