Autohidrólisis y deslignificación organosolv de madera de Pinus radiata para la recuperación de hemicelulosas y lignina con aprovechamiento de la fracción celulósica por vía enzimática

Abstract

The depletion of fossil fuel reserves, growing concern about climate change and increasing greenhouse gas emissions are leading to consider new sources of energy and chemicals. One of the most promising alternatives is the biomass and biomass derived materials, framing their use within the biorefinery concept.According to the definition of International Energy Agency (IEA), biorefining is the sustainable processing of biomass into bio-based products (food, feed, chemicals, and materials) and bioenergy (biofuels, power and/or heat). The features necessary to define a biorefinery are: plataforms, feedstock, products, and processes.Lignocellulosic biomass is the most abundant and available renewable feedstock. The use of these materials has the advantage that they do not competition with food production. However, the major disadvantage is the recalcitrance structure to be transformed into added value products. To overcome this drawback, different pretreatments have been studied in order to get the fractionation of lignocellulosic materials into their major constituents, like cellulose, hemicellulose, and lignin. Thus, they can be used as biofuels precursors and others chemicals...