An Overview of Fungal Enzymes in the Generation of Value-Added Product of Industrial Significance

The global objective of ensuring energy independence and preservation of the environment has resulted in an increased emphasis on generating biofuel worldwide. To decrease greenhouse gas (GHG) emissions and reliance on nonrenewable energy sources, alternatives are required. Integrated biorefineries, which effectively utilize all components of lignocellulosic biomass (LCB) for extraction of chemicals, fuels, and energy, constitute a foundation in the establishment of a circular economy. The increasing focus on biological treatment in biorefinery advancements reflects a conscientious approach toward environmental considerations, diverging from conventional physicochemical methods. This approach aims to enhance the recovery of bio-based products from waste, as well as improve saccharification and fermentation yields. LCB has become particularly appealing for the production of second-generation bioethanol (BE), offering both environmental and economic benefits. Enzymatic hydrolysis (EH) process is considered sustainable and enables increased sugar production, facilitating the generation of ethanol as a more readily available industrial product. Fungal enzymes are essential to these bioconversions because they can decompose LCB’s complex structures into simpler molecules and sugars. These sugars can then undergo further conversion into bio-based products. Therefore, the goal of the chapter is to provide an in-depth analysis of both conventional and novel approaches to biomass valorization, which will encompass the processes involved in transforming biomass into commercially viable products and sources of energy.