Chemical and Nutritional Characteristics of United States Soybeans and Soybean Meals

Abstract

Two experiments were conducted to determine U.S. soybean meal (SBM) variation. In experiment 1, SBM from 55 U.S. processors was evaluated. Significant (P < 0.05) but numerically small differences were detected in dry matter (DM) and organic matter (OM) concentrations. Crude protein (CP) concentrations (51.6-54.6%) were higher (P < 0.05) in SBM produced in the southern U.S. Lipid and total dietary fiber concentrations also differed (P < 0.05). The protein dispersibility index was affected (P < 0.05) by the source of SBM. In experiment 2, soybeans and resultant SBMs were obtained from 10 U.S. processing plants. Soybean DM, OM, and CP concentrations differed (P < 0.05). Soybean meal varied (P < 0.05) in CP (48.2-56.2%), acid-hydrolyzed fat (3.3-9.2%), total dietary fiber (17.0-20.7%), and lysine concentrations. Soybean meal carbohydrate composition was also affected by processing conditions. These results indicate a significant variation in chemical and nutritional characteristics of U.S. SBM from different sources.

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).…”

Características químicas e valores energéticos de farelos de soja do oeste e sudoeste do Paraná

“…A concentração de MS dos FS 1, 3, 7 e 8 foi intermediária e semelhante (P>0,05) aos demais. Em um estudo com 55 amostras de FS oriundas de sete regiões diferentes dos Estados Unidos, também houve variações no teor de MS (GRIESHOP et al, 2003 Não houve diferenças (P>0,05) para P, K, Mg, Cu e Zn, sendo os valores próximos aos citados por ROSTAGNO et al (2005), exceto para o Mg, cuja concentração média encontrada neste estudo foi aproximadamente 50% superior à citada por aqueles autores (0,41 e 0,21%). Todavia, em outro estudo realizado para avaliar a concentração de Mg de vários tipos de FS, foram encontrados valores com amplitude de 0,26 a 0,41% de Mg (KARR-LILIENTHAL et al, 2004).…”

“…Todos os FS analisados apresentaram atividade ureática dentro da faixa recomendada (GRIESHOP et al, 2003) (ARABE & DALE, 1990).…”

Technical assistance and seasonality in the diet and production of dairy herds in household agriculture of Western Paraná

“…Despite variations, the obtained values are similar to those found by Rieger et al (2008), who studied the composition of soybean meals of the West and Southwest regions of Paraná, and Zambom et al (2001), who studied the nutritional value of feed for ruminants in the North West of Paraná. The CP, however, showed variations depending on the seasons, but these variations are not due specifically to climatic conditions, but rather to the origin of the grains used for bran production (Grieshop et al, 2003) and the shell proportion added to the bran (Zambom et al, 2001).…”