Edamame soybean protein concentrate as a source of amino acid nutrition for poultry

This study aims to determine the opportunity and characteristics of edamame soybean protein concentrate (eSPC) as a source of amino acid. In this study, edamame soybean protein concentrate (eSPC) was manufactured using various methods of manufacturing solvent-based materials. This experiment consisted of two different methods, namely washing with acid and ethanol solvent. The results of manufacturing eSPC were analyzed for nutrients, especially the protein and amino acids contents. From the presentation and description of data, the best results of edamame soybean processing into protein concentrate (eSPC) was obtained in the acid method with a protein content of 48.83% and a total of 36.66% amino acids. The highest content of lysine was obtained at eSPC processing using 3.77% of acid, while methionine highest was with approximately 1.12%. These results showed that the eSPC is well used as a source of lysine and methionine in poultry feed.

Antifungal Soybean Protein Concentrate Adhesive as Binder of Rice Husk Particleboards

The aim of this research was to prepare an antifungal soybean protein concentrate (SPC) adhesive containing carvacrol (CRV) as a bioactive agent able to delay the attack of molds and yeast during storage of SPC adhesive at 4 °C as water-based systems. CRV was incorporated in SPC slurry at 0.5% v/v (~10 times its minimum inhibitory concentration against Aspergillus terreus, used as model fungus), to ensure its long-term action. CRV scarcely altered the thermal properties, structure and apparent viscosity of SPC adhesive. Active SPC aqueous dispersion was microbiologically stable for at least 30 days at 4 °C where the colonization begins, while control SPC was visually colonized from the second day. Rice husk (RH) particleboards of density ~900 kg/m3 were manufactured using the active SPC stored for 0, 10, 20, and 30 days as a binder. Modulus of elasticity, modulus of rupture and internal bond of RH–control SPC (without CRV) panels were 12.3 MPa, 2.65 GPa and 0.27 MPa, respectively, and were statistically unaltered compared with those obtained with fresh SPC, regardless of the presence of CRV or the storage time. This last implies that active SPC should not necessarily have to be prepared daily and/or be used immediately after its preparation. Since it is microbiologically stabilized, it can be store at least for 30 days, ensuring the stability of the protein. The quality of the adhesive was evidenced by the consistent properties of the adhesive, expanding its potential use and commercialization.

Soybean Molasses in Animal Nutrition

Concerning the increasing global demand for food and accumulation of huge amounts of biomass waste from the agro-food industry whose manipulation is usually inadequate, the potential of livestock to convert by-products as alternative feed ingredients into valuable proteins has been proposed as an outstanding option. Soybean molasses present a by-product of soybean protein concentrate production with low commercial cost but high nutritive and functional value. It is a rich source of soluble carbohydrates in the form of sugars and soybean phytochemicals. Therefore, this paper provides a review of published works about the production of soybean molasses, chemical composition, and nutritive value. In addition, the possibility of the application of soybean molasses in animal nutrition as a pelleting aid and functional feed ingredient is also discussed. Special attention is devoted to the influence of the inclusion of soybean molasses in the diets for ruminants, non-ruminants, and aquaculture on animal performance and health.