Soybean meal is used in

food Food is any substance consumed by an organism for nutritional support. Food is usually of plant, animal, or fungal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is in ...

and

animal feed Animal feed is food given to domestic animals, especially livestock, in the course of animal husbandry. There are two basic types: fodder and forage. Used alone, the word ''feed'' more often refers to fodder. Animal feed is an important input to ...

s, principally as a

protein supplement A protein supplement may be a dietary supplement or a bodybuilding supplement, and may take the form of a protein bar. Effects Muscle building as GURJAR In untrained individuals, changes in lean body mass and muscle strength during the initial ...

, but also as a source of metabolizable energy. Typically 1

bushel A bushel (abbreviation: bsh. or bu.) is an imperial and US customary unit of volume based upon an earlier measure of dry capacity. The old bushel is equal to 2 kennings (obsolete), 4 pecks, or 8 dry gallons, and was used mostly for agric ...

(i.e. 60 lbs. or 27.2 kg) of soybeans yields 48 lbs. (21.8 kg) of

soybean The soybean, soy bean, or soya bean (''Glycine max'') is a species of legume native to East Asia, widely grown for its edible bean, which has numerous uses. Traditional unfermented food uses of soybeans include soy milk, from which tofu ...

meal. Some, but not all, soybean meal is produced as a co-product of

soybean oil Soybean oil (British English: soyabean oil) is a vegetable oil extracted from the seeds of the soybean (''Glycine max''). It is one of the most widely consumed cooking oils and the second most consumed vegetable oil. As a drying oil, processe ...

extraction. Some, but not all, soybean meal contains ground soybean hulls. Soybean meal is heat-treated during production, to denature the

trypsin inhibitors A trypsin inhibitor (TI) is a protein and a type of serine protease inhibitor (serpin) that reduces the biological activity of trypsin by controlling the activation and catalytic reactions of proteins. Trypsin is an enzyme involved in the breakdown ...

soybeans The soybean, soy bean, or soya bean (''Glycine max'') is a species of legume native to East Asia, widely grown for its edible bean, which has numerous uses. Traditional unfermented food uses of soybeans include soy milk, from which tofu ...

, which would otherwise interfere with protein digestion.Stein, H. H., L. L. Berger, J. K. Drackley, G. C. Fahey Jr, D. C. Hernot and C. M. Parsons. 2008. Nutritional properties and feeding values of soybeans and their coproducts. Soybeans chemistry, production, processing, and utilization. AOCS Press, Urbana, IL. pp. 613-660.Soybean Feed Industry Guide. 2010. 1st Ed. https://cigi.ca/wp-content/uploads/2011/12/2010-Soybean-Feed-Industry-Guide.pdf

Major kinds of soybean meal

Three main kinds of soybean meal are produced: :• Full-fat soybean meal, made from whole soybeans. It has a high metabolizable energy concentration. (For example, metabolizable energy for swine in this product is about 3.69 megacalories (i.e. 15.4 MJ) per kg dry matter.)

Crude protein Proteins are essential nutrients for the human body. They are one of the building blocks of body tissue and can also serve as a fuel source. As a fuel, proteins provide as much energy density as carbohydrates: 4 kcal (17 kJ) per gram; in cont ...

concentration is about 38 percent (as fed). This kind of product is sometimes fed to various classes of livestock. :• Defatted soybean meal, containing no hulls. This product has an intermediate energy concentration. (For example, metabolizable energy for swine in this product is about 3.38 megacalories (i.e. 14.1 MJ) per kg dry matter.)

concentration is about 48 percent. This percentage hich is commonly used in describing the productis calculated at the typical as-fed moisture content of 88 percent.Composition. Soy Meal Info Center. http://www.soymeal.org/composition Thus, crude protein concentration expressed on a dry matter basis is 54 percent.National Research Council. 2000. Nutrient requirements of beef cattle. National Academies Press, Washington. 232 pp. This product is commonly fed to swine, broilers and layers. :• Defatted soybean meal, containing soybean hulls. The hulls are readily digestible by ruminant livestock. This product is often fed as a protein supplement for domestic ruminants. Ruminant-metabolizable energy concentration is about 3.0 megacalories (i.e. about 12.5 MJ) per kg dry matter, and crude protein concentration is about 44 percent. The latter percentage hich is commonly used in describing the product is calculated at the typical as-fed moisture content of 90 percent. Thus,

crude protein Proteins are essential nutrients for the human body. They are one of the building blocks of body tissue and can also serve as a fuel source. As a fuel, proteins provide as much energy density as carbohydrates: 4 kcal (17 kJ) per gram; in cont ...

concentration on a dry matter basis is 49 percent.

Use in animal feed

Globally, about 98 percent of soybean meal is used as animal feed.Soy facts. Of the US soybean production magnitude from 2010 through 2012, about 44 percent was exported as soybeans, and 53 percent was crushed in the US. Of the crushed tonnage, 19 percent was recovered as

and the remainder was recovered as soybean meal. Of the total US soybean tonnage produced, about 35 percent was fed to US livestock and poultry as soybean meal. Most of the remaining soybean meal produced in the US was exported. It has been estimated that, of soy meal fed to animals in the US, 48 percent is fed to poultry, 26 percent to swine, 12 percent to beef cattle, 9 percent to dairy cattle, 3 percent is used in fish feed and about 2 percent in pet food. Although this implies that the tonnage of soybean meal fed to other species is relatively minor, such use is not unimportant. For example, for rapidly growing lambs on low-protein feeds, soybean meal can be an important supplement to ensure adequate protein intake, and partly because of its palatability, soybean meal is often recommended for use in starter rations when creep feeding lambs.

Uses as human food

Global Soybean Meal Consumption (11717587375)

Globally, about 2 percent of soybean meal is used for

soy flour The soybean, soy bean, or soya bean (''Glycine max'') is a species of legume native to East Asia, widely grown for its edible bean, which has numerous uses. Traditional unfermented food uses of soybeans include soy milk, from which tofu ...

and other products for human consumption. Soy flour is used to make some

soy milk Soy milk (simplified Chinese: 豆浆; traditional Chinese: 豆漿) also known as soya milk or soymilk, is a plant-based drink produced by soaking and grinding soybeans, boiling the mixture, and filtering out remaining particulates. It is a sta ...

s and

textured vegetable protein Textured or texturized vegetable protein (TVP), also known as textured soy protein (TSP), soy meat, or soya chunks is a defatted soy flour product, a by-product of extracting soybean oil. It is often used as a meat analogue or meat extender ...

products, and is marketed as full-fat, low-fat, defatted, and

lecithin Lecithin (, from the Greek ''lekithos'' "yolk") is a generic term to designate any group of yellow-brownish fatty substances occurring in animal and plant tissues which are amphiphilic – they attract both water and fatty substances (and so a ...

ated types.

Phytoestrogens

Most studies of

phytoestrogens A phytoestrogen is a plant-derived xenoestrogen (see estrogen) not generated within the endocrine system, but consumed by eating plants or manufactured foods. Also called a "dietary estrogen", it is a diverse group of naturally occurring nonster ...

in soy have identified the

isoflavones Isoflavones are substituted derivatives of isoflavone, a type of naturally occurring isoflavonoids, many of which act as phytoestrogens in mammals. Isoflavones are produced almost exclusively by the members of the bean family, Fabaceae (Leguminosae ...

genistein Genistein (C15H10O5) is a naturally occurring compound that structurally belongs to a class of compounds known as isoflavones. It is described as an angiogenesis inhibitor and a phytoestrogen. It was first isolated in 1899 from the dyer's bro ...

and

daidzein Daidzein (7-hydroxy-3-(4-hydroxyphenyl)-4H-chromen-4-one) is a naturally occurring compound found exclusively in soybeans and other legumes and structurally belongs to a class of compounds known as isoflavones. Daidzein and other isoflavones ar ...

as its principal phytoestrogenic substances. For several soy flour samples analyzed by various persons using high-performance liquid

chromatography In chemical analysis, chromatography is a laboratory technique for the separation of a mixture into its components. The mixture is dissolved in a fluid solvent (gas or liquid) called the ''mobile phase'', which carries it through a system ( ...

, daidzein content ranged from 226 to 2100 micrograms per gram, and genistein content ranged from 478 to 1123 micrograms per gram. For four analyses of defatted soy meal, the concentrations were 616 and 753 micrograms per gram, respectively; for one analysis of soybean meal (whole), concentrations were 706 and 1000 micrograms per gram, respectively. Although reproductive physiology of sheep is particularly sensitive to phytoestrogens, soybean meal supplementation of ewe lambs or ewes on pasture in some studies has been found to have no detrimental effect on reproductive performance.Molle, G., S. Landau, A. Branca, M. Sitzia, N. Fois, S. Ligios, and S. Casu. 1997. Flushing with soybean meal can improve reproductive performances in lactating Sarda ewes on a mature pasture. Small Ruminant Research 24: 157-165.

References

{{Authority control Animal feed Soy products Soy-based foods

Major kinds of soybean meal

Use in animal feed

Uses as human food

Phytoestrogens

See also

References