fat and oil processing chemistry britannica.com

animal fat | britannica

Animal fat | Britannica

In fat and oil processing: Animal fats. The rendering process is applied on a large scale to the production of animal fats such as tallow, lard, bone fat, and whale oil. It consists of cutting or chopping the fatty tissue into small pieces that are boiled in open vats or…. Read More.

Get Enquote
human nutrition | importance, essential nutrients, food ... - britannica

Human nutrition | Importance, Essential Nutrients, Food ... - Britannica

Human nutrition is the process by which substances in food are transformed into body tissues and provide energy for the full range of physical and mental activities that make up human life. Foods supply nutrients that are critical for human growth. Learn about essential nutrients, food groups, and dietary requirements.

Get Enquote
linoleic acid | chemistry | britannica

Linoleic acid | chemistry | Britannica

Linoleic acid is the most important of these fatty acids because it is convertible to other essential fatty acids. Linoleic acid has two double bonds and is a polyunsaturated fatty acid. As well as being an essential fatty acid, it tends to lower the cholesterol…. Linoleic acid, the primary omega-6 fatty acid in most diets, is widespread in ...

Get Enquote
cocoa butter | definition, characteristics, & uses | britannica

Cocoa butter | Definition, Characteristics, & Uses | Britannica

Jennifer Murtoff. Cocoa butter, pale yellow, edible vegetable fat obtained from cocoa beans, having a mild chocolate flavour and aroma, and used in the manufacture of chocolate (including white chocolate), pharmaceutical products, and toiletries. Cocoa butter is extracted from cocoa beans, which are the fatty seeds.

Get Enquote
soap and detergent - hydrolyzer, process, manufacturing | britannica

Soap and detergent - Hydrolyzer, Process, Manufacturing | Britannica

Soap and detergent - Hydrolyzer, Process, Manufacturing: The boiling process is very time consuming; settling takes days. To produce soap in quantity, huge kettles must be used. For this reason, continuous soapmaking has largely replaced the old boiling process. Most continuous processes today employ fatty acids in the saponification reaction in preference to natural fats and oils. These acids ...

Get Enquote
fat and oil processing - pressing, refining, fractionation | britannica

Fat and oil processing - Pressing, Refining, Fractionation | Britannica

Fat and oil processing - Pressing, Refining, Fractionation: With many oil-bearing seeds and nuts, rendering will not liberate the oil from the cellular structures in which it is held . In these cases the cell walls are broken by grinding, flaking, rolling, or pressing under high pressures to liberate the oil. The general sequence of modern operations in pressing oilseeds and nuts is as follows ...

Get Enquote
enfleurage | chemistry | britannica

Enfleurage | chemistry | Britannica

In perfume. In the extraction method called enfleurage, petals are placed between layers of purified animal fat, which become saturated with flower oil, and alcohol is then used to obtain the absolute. The expression method, used to recover citrus oils from fruit peels, ranges from a traditional procedure of pressing with sponges….

Get Enquote
3.1: understanding fats and oils - chemistry libretexts

3.1: Understanding Fats and Oils - Chemistry LibreTexts

3.1: Understanding Fats and Oils. Page ID. Sorangel Rodriguez-Velazquez. American University. Fats and oils are organic compounds that, like carbohydrates, are composed of the elements carbon (C), hydrogen (H), and oxygen (O), arranged to form molecules. There are many types of fats and oils and a number of terms and concepts associated with ...

Get Enquote
soap and detergent - synthetic, surfactants, cleaning | britannica

Soap and detergent - Synthetic, Surfactants, Cleaning | Britannica

Soap and detergent - Synthetic, Surfactants, Cleaning: If turkey-red oil—i.e., sulfated castor oil, still used in textile and leather industries today—is considered the first synthetic detergent, the industry began in the midst of the 19th century. The first synthetic detergents for general use, however, were produced by the Germans in the World War I period so that available fats could be ...

Get Enquote
27.1: waxes, fats, and oils - chemistry libretexts

27.1: Waxes, Fats, and Oils - Chemistry LibreTexts

Waxes. Waxes are esters of long-chain fatty acids with long-chain monohydric alcohols (one hydroxyl group). The carboxylic acid and the alcohol typically each have an even number of carbons. Cetyl palmitate is a typical wax, it is the ester of cetyl alcohol ( CH 3 (CH 2) 15 OH) and palmitic acid (CH 3 (CH 2) 14 COOH).

Get Enquote
17.2: fats and oils - chemistry libretexts

17.2: Fats and Oils - Chemistry LibreTexts

17.2: Fats and Oils. Explain why fats and oils are referred to as triglycerides. Explain how the fatty acid composition of the triglycerides determines whether a substance is a fat or oil. Describe the importance of key reactions of triglycerides, such as hydrolysis, hydrogenation, and oxidation.

Get Enquote
fat and oil - students | britannica kids | homework help

fat and oil - Students | Britannica Kids | Homework Help

Plants store fats and oils in their seeds and fruits. Fats and oils from plants and animals are chemical compounds called esters, combinations of glycerin with various fatty acids. The Earth supplies the mineral oil called petroleum. Most of the compounds present in petroleum are hydrocarbons. These resemble esters in some ways.

Get Enquote
glyceride | chemical compound | britannica

Glyceride | chemical compound | Britannica

components of fat. In fat. …vegetable oils, consisting primarily of glycerides, which are esters formed by the reaction of three molecules of fatty acids with one molecule of glycerol ( see oil). Read More. In fat and oil processing: Destearinating or winterizing. …seed coats) and the higher-melting glycerides from fats.

Get Enquote
oil extraction | definition, methods, & facts | britannica

Oil extraction | Definition, Methods, & Facts | Britannica

oil extraction, isolation of oil from animal by-products, fleshy fruits such as the olive and palm, and oilseeds such as cottonseed, sesame seed, soybeans, and peanuts. Oil is extracted by three general methods: rendering, used with animal products and oleaginous fruits; mechanical pressing, for oil-bearing seeds and nuts; and extracting with ...

Get Enquote
soap and detergent | chemistry, uses, properties, & facts

Soap and detergent | Chemistry, Uses, Properties, & Facts

Preventing the soil from being deposited again onto the surface cleaned. The soap or detergent accomplishes this by suspending the dirt in a protective colloid, sometimes with the aid of special additives. In a great many soiled surfaces the dirt is bound to the surface by a thin film of oil or grease. The cleaning of such surfaces involves the ...

Get Enquote
winterizing | chemical process | britannica

Winterizing | chemical process | Britannica

In fat and oil processing: Destearinating or winterizing. It is often desirable to remove the traces of waxes (e.g., cuticle wax from seed coats) and the higher-melting glycerides from fats. Waxes can generally be removed by rapid chilling and filtering. Separation of high-melting glycerides, or stearine, usually requires very slow cooling in….

Get Enquote
margarine | definition, production, & ingredients | britannica

Margarine | Definition, Production, & Ingredients | Britannica

margarine, food product made principally from one or more vegetable or animal fats or oils in which is dispersed an aqueous portion containing milk products, either solid or fluid, salt, and such other ingredients as flavouring agents, yellow food pigments, emulsifiers, preservatives, vitamins A and D, and butter.

Get Enquote
antioxidant | free radicals, oxidative stress & reactive ... - britannica

Antioxidant | Free Radicals, Oxidative Stress & Reactive ... - Britannica

The chain can be initiated by thermally excited molecules, free radicals, metal catalysts, or light. Antioxidants, by reacting with chain carriers, terminate the oxidative chain reaction. An example of autoxidation that is of great commercial concern is the one leading to the rancidity of fats, oils, and fatty foods.

Get Enquote
oil | petroleum, crude, refining | britannica

Oil | Petroleum, Crude, Refining | Britannica

oil, any greasy substance that is liquid at room temperature and insoluble in water. There are many types, such as essential oil; orris oil; mineral oil ( see petroleum ); whale oil; pine oil; linseed oil; perilla oil; fish oil; tall oil; citronella oil. There is also cooking oil, such as olive, vegetable, Canola, and argan.

Get Enquote
trans fat | nutrition, food products & alternatives | britannica

Trans fat | Nutrition, Food Products & Alternatives | Britannica

Trans fat, fat produced from the industrial process of hydrogenation, in which molecular hydrogen (H2) is added to vegetable oil, thereby converting liquid fat to semisolid fat. The synthesis of hydrogenated compounds originated in the 1890s, when French chemist Paul Sabatier discovered that metal

Get Enquote
fat and oil processing - encyclopedia britannica

fat and oil processing - Encyclopedia Britannica

fat and oil processing, method by which fatty animal and plant substances are prepared for eating by humans. The oil and fat products used for edible purposes can be divided into two distinct classes: liquid oils, such as olive oil, peanut oil, soybean oil, or sunflower oil; and plastic fats, such as lard, shortening, butter, and margarine.

Get Enquote
fat and oil processing - extraction, refining, fractionation | britannica

Fat and oil processing - Extraction, Refining, Fractionation | Britannica

Table of Contents. Fat and oil processing - Extraction, Refining, Fractionation: The extent of processing applied to fats depends on their source, quality, and ultimate use. Many fats are used for edible purposes after only a single processing step—i.e., clarification by settling or filtering. Most cold-pressed oils (for example, cold-pressed ...

Get Enquote
lipid | definition, structure, examples, functions, types ... - britannica

Lipid | Definition, Structure, Examples, Functions, Types ... - Britannica

What are lipid rafts? lipid, any of a diverse group of organic compounds including fats, oils, hormones, and certain components of membranes that are grouped together because they do not interact appreciably with water.

Get Enquote
solvent extraction | chemistry | britannica

Solvent extraction | chemistry | Britannica

In fat and oil processing: Solvent extraction Cakes obtained by pressing operations still retain 3 to 15 percent of residual oil. When the value of the oil is considerably greater as oil than as a part of the meal, it is desirable to obtain more complete extraction with solvents.… Read More petroleum refining

Get Enquote
fat | dietary, animal & plant sources | britannica

Fat | Dietary, Animal & Plant Sources | Britannica

Chemically, fats are identical to animal and vegetable oils, consisting primarily of glycerides, which are esters formed by the reaction of three molecules of fatty acids with one molecule of glycerol ( see oil ). Together with oils, fats comprise one of the three principal classes of foodstuffs, the others being proteins and carbohydrates.

Get Enquote
fat and oil - students | britannica kids | homework help

fat and oil - Students | Britannica Kids | Homework Help

Fats and oils from plants and animals are chemical compounds called esters, combinations of glycerin with various fatty acids. The Earth supplies the mineral oil called petroleum. Most of the compounds present in petroleum are hydrocarbons. These resemble esters in some ways.

Get Enquote
naturally occurring fatty acids: source, chemistry, and uses

Naturally Occurring Fatty Acids: Source, Chemistry, and Uses

Traditional fat and oil processing steps can be divided into four operations, namely, recovery, refining, conversion, and stabilization of the oil and have been thoroughly reviewed elsewhere (Bockisch, 1998, Dijkstra and Segers, 2007, Gunstone, 1996, Johnson, 2002, O’Brien, 2009). Briefly, recovery, referred to as crushing or extraction for plant materials and rendering for inedible animal ...

Get Enquote
bleaching | chemistry | britannica

Bleaching | chemistry | Britannica

In fat and oil processing: Bleaching If further colour removal is desired, the fat may be treated with various bleaching agents. Heated oils are treated with fuller’s earth (a natural earthy material that will decolorize oils), activated carbon, or activated clays. Many impurities, including chlorophyll and carotenoid pigments, are adsorbed…

Get Enquote
petroleum benzin | chemistry | britannica

Petroleum benzin | chemistry | Britannica

petroleum benzin chemistry Also known as: commercial heptane, commercial hexane, petroleum ether Learn about this topic in these articles: food processing In fat and oil processing: Processes …especially the various grades of petroleum benzin (commonly known as petroleum ether, commercial hexane, or heptane).

Get Enquote

You May Also Like

More From Author