Recent Advances in the Pretreatment of Lignocellulosic Biomass for Biofuel/Chemical Production

A special issue of Fermentation (ISSN 2311-5637). This special issue belongs to the section "Industrial Fermentation".

Deadline for manuscript submissions: closed (31 March 2024) | Viewed by 468

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Guest Editor
Department of Biosystems Engineering, Auburn University, Auburn, AL, USA
Interests: biomass; thermochemical process; biofuel/chemical; bio-char; catalysis; adsorption; wastewater treatment
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Special Issue Information

Dear Colleagues,

Lignocellulosic biomass is regarded as a sustainable and potentially renewable resource, offering an alternative to fossil fuels. Research into developing novel and innovative methods for harnessing lignocellulosic biomass for fuels, energy, and materials has significantly increased in the past decade. This surge in interest is driven by the recognition that emerging technologies must prioritize the mitigation of climate change. Lignocellulosic biomass consists of renewable woody feedstocks composed of cellulose, hemicellulose, and lignin. Due to its diverse composition, obtaining high-quality chemicals and fuels from it can be challenging. To simplify the production of quality products from biomass, pretreatment methods have proven effective. Most pretreatments can be categorized as physical, chemical, and/or biological processes. For any pretreatment process to be economically viable, it is essential to consider factors such as energy costs and solvent requirements for the separation, depolymerization, and conversion of lignocellulose. Furthermore, it should be optimized for effectiveness while keeping capital and operational costs low. This Special Issue focuses on advancing green pretreatment methods that employ environmentally friendly approaches with minimal resource consumption, aiming to reduce product complexity. The primary objective of this Special Issue is to provide a critical and systematic understanding of recent developments in pretreatment methods used in chemical/biofuel production from lignocellulosic biomass and suggest future research directions. We welcome submissions of original research articles, critical reviews, and perspectives for this Special Issue. Potential topics include, but are not limited to, the following areas:

  • Exploitation of physical, chemical, and/or biological treatment processes for chemical, fuel, and gas production;
  • Conversion process, such as fermentation, hydrolysis, thermochemical, etc., for turning treated residue into quality chemicals/fuels;
  • Development of new pretreatment technologies or processes for converting lignocellulosic biomass into chemicals/biofuels;
  • Modeling and economic analyses of the pretreatment processes used to convert biomass into high-quality biofuels.

Dr. Bijoy Biswas
Guest Editor

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fermentation is an international peer-reviewed open access monthly journal published by MDPI.

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Keywords

  • lignocellulosic biomass
  • physical treatment process
  • chemical treatment process
  • biological treatment process
  • fermentation method
  • thermochemical methods
  • transesterification
  • chemicals/fuels
  • syngas
  • modeling and economic analyses

Published Papers (1 paper)

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Research

15 pages, 3944 KiB  
Article
Functional Study of Different Lignocellulases from Trichoderma guizhouence NJAU4742 in the Synergistic Degradation of Natural Straw
by Tuo Li, Ronghua Pei, Jiaguo Wang, Yihao Zhou and Dongyang Liu
Fermentation 2024, 10(5), 230; https://doi.org/10.3390/fermentation10050230 - 26 Apr 2024
Viewed by 232
Abstract
The enzyme-based degradation of lignocellulose for bioenergy production is an eco-friendly and sustainable approach. This study aimed to elucidate the enzymatic characteristics of endoglucanase (EGL), β-glucosidase (BGL), and xylanase (XYN) from Trichoderma guizhouence NJAU4742, and to explore the potential mechanisms underlying their synergistic [...] Read more.
The enzyme-based degradation of lignocellulose for bioenergy production is an eco-friendly and sustainable approach. This study aimed to elucidate the enzymatic characteristics of endoglucanase (EGL), β-glucosidase (BGL), and xylanase (XYN) from Trichoderma guizhouence NJAU4742, and to explore the potential mechanisms underlying their synergistic degradation of different natural substrates. The results demonstrated that the three enzymes possessed remarkable high-temperature catalytic activity, broad pH adaptability, and responsiveness to different metal ions. The functional group absorption peaks of different substrates were shifted and altered after the synergistic action, particularly for C=O and O-H. Simultaneously, the crystallinity index of wheat straw, soybean straw, rice straw, and corn straw decreased by 7.40%, 2.37%, 20.60%, and 7.67%, respectively, compared to CK (natural straw). Additionally, the dense structure of different substrates was destroyed, and the inner parenchyma began to be exposed after the synergistic action, as observed by SEM. These findings offer valuable theoretical guidance for the development of lignocellulase applications. Full article
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