Bioreactor technology applied to enzymatic hydrolysis has been studied to overcome the main limitation of enzymatic hydrolysis. This work presents the application of an oscillatory flow reactor (OFR) for enzymatic hydrolysis of lignocellulosic biomass at high solids loading [> 15% (w/v)]. OFR consists of a tubular reactor with periodical constrictions where vortices are created due to the oscillating flow deter...
Enzymatic hydrolysis is a key process for lignocellulosic biomass conversion; a way to increase its efficiency and lessen the process cost is by targeting alternative strategies to improve the use of cellulolytic enzymes. This work addresses enzyme immobilization as a strategy to enhance lignocellulosic biomass hydrolysis by simplifying enzyme recovery and opening possibility for continuous processes. Magnetic ...
Environmental issues have led to the urgent necessity of research to focus on fossil fuel dependency detachment in the near future. Under the biorefinery concept, enzymatic hydrolysis is a key bioprocess for lignocellulosic biomass conversion into biofuels and bioproducts. Even though taking place under milder conditions and without the use of hazardous chemicals compared, for example, with acid hydrolysis, the...
Lignocellulosic residues have been receiving growing interest as a promising source of polysaccharides, which can be converted into a variety of compounds, ranging from biofuels to bioplastics. Most of these can replace equivalent products traditionally originated from petroleum, hence representing an important environmental advantage. Lignocellulosic materials are theoretically unlimited, cheaper and may not c...
In Europe, pine forests are one of the most extended forests formations, making pine residues and by-products an important source of compounds with high industrial interest as well as for bioenergy production. Moreover, the valorization of lumber industry residues is desirable from a circular economy perspective. Different extraction methods and solvents have been used, resulting in extracts with different cons...
The production of tequila in Mexico generates a large amount of agave bagasse per year. However, this biomass can be considered as a potential source for biofuel production. In this study, it is described how the hydrothermal pretreatment was scaled in a bench scale, considering the severity index as a strategy. The best condition was at 180°C in isothermal regime for 20min with 65.87% of cellulose content and ...
Hoje em dia os pré-tratamentos precisam ser robustos, para num mesmo processo, se produzirem compostos de alto valor acrescentado, como os xilooligossacarídeos (XOS) que podem ser aplicados na indústria alimentar, farmacêutica e energética, além de isto a produção de substratos para a conversão em biocombustíveis, como o bioetanol, e assim reduzir os altos custos das biorrefinerias de segunda geração. Além diss...