ABSTRACT: Concerns over fossil fuels are of increasing interest in biorefineries that utilize lignocellulosic residues. Besides sugars, inhibitors are formed during biomass pretreatment, including acetic acid (AI) and formic acid (FI), which can hinder microbial fermentation. The TG1 and Tuner strains of Escherichia coli were subjected to various acid concentrations. Samples were taken during fermentation to mo...
Pine nut shells, a biomass residue from the Mediterranean Pinus pinea pine nut industrial processing, were treated by microwave- assisted autohydrolysis to produce xylo-oligosaccharides. Microwave-assisted processes provide alternative heating that may reduce energy input and increase overall process efficiency. The autohydrolysis treatments were performed under isothermal and non-isothermal operations within a...
The suitability of globe artichoke crop residues to be transformed into bioethanol was assessed in this paper from the field to the fermenter. A 2-year field trial on “Opera F1” (OF1), a hybrid variety of globe artichoke, resulted in an average annual production of residues of 14 t/ha. The residual biomass of OF1 is made up of 24% glucan and 17% hemicelluloses and is rich in soluble sugars. Water extraction (WE...
Apresentação de resultados da Tese de Mestrado Mestre em Gestão e Desenvolvimento em Recursos Humanos.
Este trabalho mostra que é possível através da tecnologia de radiotraçadores fazer um estudo da degradação do pesticida 2-(4-(2-(etoxicarbamatoetoxi) etoxi)benzil)-1ciclohexanona etileno acetal – W328 (análogo da hormona juvenil) por uma estirpe bacteriana existente no solo. De duas amostras de solo recolhidas a 8 km de Reguengos de Monsaraz foram isolados os microrganismos aeróbios através do cultivo em três m...