Se trata del primer reservorio elaborado en la Argentina y que contiene información sobre los anticuerpos que producen estos camélidos frente al SARS-CoV-2. Con la información obtenida de la biblioteca se podrán obtener nanoanticuerpos con la capacidad de inhibir la infección viral provocada por el coronavirus-2.
Trabajos en Prensa
Evaluation of the quality of soybean by-products
By-products from agribusiness tend to have high variability in nutritional quality. This is problematic when used in diets intended for animal production. In the present work, the nutritional profile and variability of expellers and soy flour from the Rafaela, Santa Fe region were analyzed through chemical tests, in sacco and surveys. From the samples it was observed that the variability in the indicators of nutritional quality of these by-products, such as crude protein content (PB), ethereal extract (EE) and degradability, was not different from that reported by the national literature. In addition, this variability could be explained by factors such as the contents of EE and crude fiber (FC), and was associated with the solubility of the protein in potassium hydroxide (PB-KOH). In correspondence with this, the expellers presented less degradability than the flours. Among the factors of industrial processing that modified the variability of the expeller, it was found that cleaning the grain prior to oil extraction increased the EE content of the bean and decreased that of the expeller, increasing the extraction efficiency by 22%. The heat treatment modified the degradability fractions through the decrease in fraction a (immediately soluble) and the increase in fraction b (potentially degradable). In addition to cleaning the grain, this work indicates that to reduce the variability of these by-products, simple and reliable quality controls such as PB-KOH should be implemented. This would allow generating protocolization plans and reducing EE variability in these by-products.
Keywords: soybean expeller, nutritional variability, process protocols, feed evaluation.
1 Universidad de Buenos Aires (UBA), Facultad de Agronomía, Cátedra de Nutrición Animal. San Martín 4544, CABA.
2 Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria (EEA) Rafaela, Ruta 34, km 227 (2300), Rafaela, Santa Fe, Argentina. 3Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria (EEA) Oliveros, Agencia de Extensión Rural (AER) Totoras, Av. Maipú 1138 (2144). Correo electrónico: firstname.lastname@example.org