Application of enzymatic and bacterial biodelignification systems for enhanced breakdown of model lignocellulosic wastes

A Review on Bacterial Contribution to Lignocellulose Breakdown into Useful Bio-Products

“…In the process of breaking down lignocellulose, bacterial cellulases, and hemicellulases are known to have several advantages and be more effective when it comes to ease to culture, possibility of speeding up production, and boosting expression [ 23 ]. Bacterial strains generally have a short generation time which means they can be grown with ease for further use in biofuel production [ 10 ]. They can withstand environmental stress better as they are biochemically versatile, with the ability to adapt to changes in temperature, salinity, pH, and oxygen availability [ 20 ].…”

“…In lignin breakdown, fungi, especially white rot, have been extensively studied [ 10 ]. Despite the large amount of research that has established fungi as primary decomposers, their genetic manipulation capabilities for genetic engineering still remain very low as opposed to other organisms of interest.…”

Modeling of Pretreatment and Combined Alkaline and Enzymatic Hydrolyses of Blue Agave Bagasse in Corotating Twin‐Screw Extruders

“…Although enzymes are expensive, their advantages in energy requirements, milder conditions, and minimal formation of by-products seem to compensate for their high costs. [10][11][12][13][14]50,51] A correlation between lignin removal and an efficient enzymatic digestibility process is reported in the literature. [51][52][53] Enzymes also help in the fermentation step since they do not generate yeast inhibitory byproducts.…”

“…[10][11][12][13][14]50,51] A correlation between lignin removal and an efficient enzymatic digestibility process is reported in the literature. [51][52][53] Enzymes also help in the fermentation step since they do not generate yeast inhibitory byproducts. On the other hand, extrusion has two effects: the first one is decreasing crystalline cellulose content, and the second one is increasing the available surface area for enzyme action.…”

“…[54,55] Enzymatic degradation of cellulose is a heterogeneous process that is conducted at the solid-liquid interface and enzymes are the mobile components. [51][52][53][54][55] The enzyme (cellulase) promotes solubility of intermediate components of low molecular weight which, in turn, produce glucose. [56,57] Several commercial enzymes and different substrates have been explored for the hydrolysis of biomasses.…”