Researchers at the University of Illinois compared the nutrient composition of soybeans grown in Brazil, China and the U.S. Soybeans were collected and analyzed for various nutrients important to the feed industry.
Results indicated that dry matter, organic matter and ash content differences were small and probably reflected the individual samples. Differences in crude protein, amino acids and lipid content were detected both within and between countries. Soybeans obtained from China (40.86%) had greater crude protein levels compared to Brazil (41.58%) and the United States (41.58%). The average oil concentration was greatest for the soybean samples from the United States (18.70%), Brazil (18.66%) compared to China (17.25%). These composition values reflect the environmental condition under which the soybeans are grown. These results are important to the feed industry since the composition of soybean meal is directly influenced by the composition of the soybean and the processing conditions.
Composition of soybeans from Brazil, China and the United States (*)
|Neutral Detergent Fiber||13.36||13.79||13.85|
|Protein Solubility (**)||27.68(a)||29.18(b)||30.80(c)|
|Essential Amino Acids||blank||blank||blank|
|Nonessential Amino Acids||blank||blank||blank|
|Total Essential Amino Acids||16.64(a)||17.39(b)||18.51(c)|
|Total Nonessential Amino Acids||21.52(a)||22.12(a)||23.29(b)|
|Total Amino Acids||38.17(a)||39.51(a)||41.80(b)|
(*) All values are expressed as per cent dry weight and means in the same row with different letters differ (P<0.05).
(**) Protein solubility in potassium hydroxide.
Grieshop, C.M. and Fahey, G.C. Jr. 2001 Comparison of quality characteristics of soybeans from Brazil, China and the United States. J. Agric. Food Chem. 59(5):2669-2673.