Comparison of Quality Characteristics of Soybeans from Brazil, China, and the United States

Abstract

Both soybean composition and processing conditions impact the nutritional quality of soybean meal. The objective of this experiment was to compare nutrient compositions of soybeans grown under diverse environmental conditions in a variety of locations. Dry matter, organic matter, and ash concentrations differed in soybeans collected within the countries of Brazil, China, and the United States, although these differences were generally small or due to uniqueness of a particular source. Large differences in dry matter were detected among countries. Differences in crude protein, amino acid, and lipid concentrations of soybeans were detected both within and among countries. Soybeans from China had a greater crude protein concentration (42.14%) than those from Brazil (40.86%), whereas soybeans from China had a lower lipid concentration (17.25%) than those from either Brazil or the United States (18.66 and 18.70%, respectively). Environmental conditions under which soybeans are grown have a great impact on chemical composition and nutrient quality.

Composição química e valor protéico do resíduo de soja em relação ao grão de soja

“…O conteúdo de proteína do grão de soja (40% -Tabela 1) se assemelha ao encontrado em variedades dessa leguminosa cultivadas no Brasil (41%), China e Estados Unidos (42%) [12]; enquanto que o teor protéico do resíduo de soja apresentou-se similar ao da farinha de soja (46%) e da proteína texturizada de soja (47%) [11].…”

“…A relação entre o consumo de soja e a saúde humana tem sido amplamente investigada pelas características nutricionais desse alimento, quer seja o elevado teor de proteína de qualidade nutricional adequada, o conteúdo significativo de minerais e fibras, ou ainda, a quantidade reduzida de gordura saturada e a ausência de colesterol [12,22,33]. Mais recentemente, a soja tem sido pesquisada também como fonte de substâncias denominadas fitoquímicos, entre os quais os flavonóides, tendo sido observada uma relação entre o consumo de soja e a redução dos riscos de doenças crônicas não-infecciosas como as doenças cardiovasculares, alguns tipos de cânceres e osteoporose [7,16,20,22,29].…”

Soy, phytoestrogens and their impact on reproductive health

“…Soybean (Glycine max) is composed of macronutriments such as proteins, carbohydrates and lipids. Protein content varies between 36% and 46% depending on the variety (Garcia et al, 1997;Grieshop and Fahey, 2001;Grieshop et al, 2003). The major portion of the protein component is formed by storage proteins such as 7S globulin (b-conglycinin) and 11S globulin (glycinin), which represent about 80% of the total protein content (Garcia et al, 1997).…”

Effects of Origins of Soybean Meal on Growth Performance, Nutrient Digestibility and Fecal Microflora of Growing Pigs

“…Variations in the performance of pigs fed diets containing SBM of different origin might have been be due to variations in the nutrient compositions of SBM. Previous studies have reported that variations in nutrient compositions of SBM among geographic regions are due to differences in environmental conditions, genetic variations and processing conditions (Baiz, 1997;Grieshop and Fahey, 2001). Park and Hurburgh (2002) found that SBM samples from the European Union (EU) and United States had the greatest content of protein and the least amount of fiber when compared with SBM from India, Brazil, Argentina, and China.…”

“…Studies have shown compositional differences in both SB (Grieshop and Fahey, 2001) and SBM (Baize, 1997;Grieshop et al, 2003;Wang et al, 2011) within and among geographic regions of the world. Park and Hurburgh (2002) found that SBM samples from the European Union and United States had the greatest content of protein and the least amount of fiber when compared with those from India, Brazil, Argentina, and China.…”