Genetic manipulation strategies for ethanol production from bioconversion of lignocellulose waste

Design of a sustainable system for wastewater treatment and generation of biofuels based on the biomass of the aquatic plant Eichhornia Crassipes

“…These biotechnologies could help the country in two important areas: water treatment and energy generation. Ethanol production from lignocellulosic material has become an interesting alternative for revaluing waste and opening new markets 13 – 15 . E. crassipes biomass has also been successfully used for biohydrogen production, with different bioreactors used depending on the metabolic bioprocess and microorganism type, including dark fermentation 16 – 19 .…”

A natural consortium of thermophilic bacteria from Huancarhuaz hot spring (Ancash-Peru) for promising lignocellulose bioconversion

“…Lignocellulosic biomass (LCB) is an abundant and renewable source of carbohydrates useful for microbial bioconversion to produce second-generation biofuels, bioproducts, or chemicals [ [1] , [2] , [3] ]. Although lignocellulose is the most abundant and cheap raw material, its chemical composition, consisting of hydrophobic fibers of cellulose cross-linked with hemicellulose, lignin, and other polymers, makes it recalcitrant and represents a challenge for biodegradation [ 3 , 4 ].…”

“…In this sense, cellulases and xylanases from thermophilic bacteria could be used to facilitate the development of low-cost and highly efficient processes for the conversion of lignocellulosic biomass [ 10 ]. This offers a solution to meet the growing demand for biofuel, provide bioproducts for industrial applications, and can help in the reduction of CO 2 emissions caused by the burning of lignocellulose waste and the use of fossil fuels [ 2 , 16 , 20 ].…”

Engineering of Ogataea polymorpha strains with ability for high-temperature alcoholic fermentation of cellobiose

“…However, because the main raw materials for the production of ethanol are starch and sucrose, which are also important components of food and feed for farm animals, this poses a significant ethical problem. Furthermore, bioethanol production from these raw materials may consequently lead to a reduction in their availability, an increase in their unit cost and, in some regions of the world, would lead to a shortage of these feedstocks (Bušić et al 2018 , Gong et al 2022 ). As a result of the above, alternative sources are sought that could successfully replace sucrose and starch, while being inedible substrates; therefore, the main alternative is the dry plant biomass (lignocellulose) (Abo et al 2019 ).…”