Lignocellulosic biomass: Acid and alkaline pretreatments and their effects on biomass recalcitrance – Conventional processing and recent advances

2020 ◽  
Vol 304 ◽  
pp. 122848 ◽  
Author(s):  
Adenise Lorenci Woiciechowski ◽  
Carlos José Dalmas Neto ◽  
Luciana Porto de Souza Vandenberghe ◽  
Dão Pedro de Carvalho Neto ◽  
Alessandra Cristine Novak Sydney ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Biomass Recalcitrance ◽  
Recent Advances

scholarly journals Recent Advances in Renewable Polymer Production from Lignin-Derived Aldehydes

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 364
Author(s):  
Nahyeon Lee ◽  
Yong Tae Kim ◽  
Jechan Lee
Keyword(s):  
Lignocellulosic Biomass ◽  
Aromatic Aldehydes ◽  
Renewable Chemicals ◽  
Platform Chemicals ◽  
Recent Advances ◽  
Promising Source

Lignin directly derived from lignocellulosic biomass has been named a promising source of platform chemicals for the production of bio-based polymers. This review discusses potentially relevant routes to produce renewable aromatic aldehydes (e.g., syringaldehyde and vanillin) from lignin feedstocks (pre-isolated lignin or lignocellulose) that are used to synthesize a range of bio-based polymers. To do this, the processes to make aromatic aldehydes from lignin with their highest available yields are first presented. After that, the routes from such aldehydes to different polymers are explored. Challenges and perspectives of the production the lignin-derived renewable chemicals and polymers are also highlighted.

scholarly journals Conversion of Lignocellulosic Biomass to Nanocellulose: Structure and Chemical Process

2014 ◽  
Vol 2014 ◽  
pp. 1-20 ◽  
Author(s):  
H. V. Lee ◽  
S. B. A. Hamid ◽  
S. K. Zain
Keyword(s):  
Molecular Structure ◽  
Mechanical Properties ◽  
Lignocellulosic Biomass ◽  
Chemical Process ◽  
Catalyst Design ◽  
Natural Resistance ◽  
Cellulose Crystallinity ◽  
Biomass Recalcitrance ◽  
Cellulose Accessibility ◽  
High Cellulose

Lignocellulosic biomass is a complex biopolymer that is primary composed of cellulose, hemicellulose, and lignin. The presence of cellulose in biomass is able to depolymerise into nanodimension biomaterial, with exceptional mechanical properties for biocomposites, pharmaceutical carriers, and electronic substrate’s application. However, the entangled biomass ultrastructure consists of inherent properties, such as strong lignin layers, low cellulose accessibility to chemicals, and high cellulose crystallinity, which inhibit the digestibility of the biomass for cellulose extraction. This situation offers both challenges and promises for the biomass biorefinery development to utilize the cellulose from lignocellulosic biomass. Thus, multistep biorefinery processes are necessary to ensure the deconstruction of noncellulosic content in lignocellulosic biomass, while maintaining cellulose product for further hydrolysis into nanocellulose material. In this review, we discuss the molecular structure basis for biomass recalcitrance, reengineering process of lignocellulosic biomass into nanocellulose via chemical, and novel catalytic approaches. Furthermore, review on catalyst design to overcome key barriers regarding the natural resistance of biomass will be presented herein.

scholarly journals A comprehensive study of the promoting effect of manganese on white rot fungal treatment for enzymatic hydrolysis of woody and grass lignocellulose

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Xiao Fu ◽  
Jialong Zhang ◽  
Xiangyu Gu ◽  
Hongbo Yu ◽  
Shulin Chen
Keyword(s):  
Wheat Straw ◽  
Lignocellulosic Biomass ◽  
Quantum Coherence ◽  
Plant Cell Wall ◽  
White Rot ◽  
Yield Enhancement ◽  
Biomass Recalcitrance ◽  
Fungal Treatment ◽  
Ether Linkage ◽  
Glucose Yield

Abstract Background The efficiency of biological systems as an option for pretreating lignocellulosic biomass has to be improved to make the process practical. Fungal treatment with manganese (Mn) addition for improving lignocellulosic biomass fractionation and enzyme accessibility were investigated in this study. The broad-spectrum effect was tested on two different types of feedstocks with three fungal species. Since the physicochemical and structural properties of biomass were the main changes caused by fungal degradation, detailed characterization of biomass structural features was conducted to understand the mechanism of Mn-enhanced biomass saccharification. Results The glucose yields of fungal-treated poplar and wheat straw increased by 2.97- and 5.71-fold, respectively, after Mn addition. Particularly, over 90% of glucose yield was achieved in Mn-assisted Pleurotus ostreatus-treated wheat straw. A comparison study using pyrolysis gas chromatography mass spectrometry (Py-GC/MS) and two-dimensional 1H–13C heteronuclear single quantum coherence (2D HSQC) nuclear magnetic resonance (NMR) spectroscopy was conducted to elucidate the role of Mn addition on fungal disruption of the cross-linked structure of whole plant cell wall. The increased Cα-oxidized products was consistent with the enhanced cleavage of the major β-O-4 ether linkages in poplar and wheat straw lignin or in the wheat straw lignin–carbohydrate complexes (LCCs), which led to the reduced condensation degree in lignin and decreased lignin content in Mn-assisted fungal-treated biomass. The correlation analysis and principal component analysis (PCA) further demonstrated that Mn addition to fungal treatment enhanced bond cleavage in lignin, especially the β-O-4 ether linkage cleavage played the dominant role in removing the biomass recalcitrance and contributing to the glucose yield enhancement. Meanwhile, enhanced deconstruction of LCCs was important in reducing wheat straw recalcitrance. The findings provided not only mechanistic insights into the Mn-enhanced biomass digestibility by fungus, but also a strategy for improving biological pretreatment efficiency of lignocellulose. Conclusion The mechanism of enhanced saccharification of biomass by Mn-assisted fungal treatment mainly through Cα-oxidative cleavage of β-O-4 ether linkages further led to the decreased condensation degree in lignin, as a result, biomass recalcitrance was significantly reduced by Mn addition. Graphic abstract

Recent Advances in Production of Bioethanol from Lignocellulosic Biomass

2009 ◽  
Vol 32 (4) ◽  
pp. 517-526 ◽  
Author(s):  
S. Kumar ◽  
S. P. Singh ◽  
I. M. Mishra ◽  
D. K. Adhikari
Keyword(s):  
Lignocellulosic Biomass ◽  
Recent Advances

scholarly journals Recent advances on ammonia-based pretreatments of lignocellulosic biomass

2020 ◽  
Vol 298 ◽  
pp. 122446 ◽  
Author(s):  
Chao Zhao ◽  
Qianjun Shao ◽  
Shishir P.S. Chundawat
Keyword(s):  
Lignocellulosic Biomass ◽  
Recent Advances

Recent advances in biological pretreatment of microalgae and lignocellulosic biomass for biofuel production

2019 ◽  
Vol 105 ◽  
pp. 105-128 ◽  
Author(s):  
Hossain M. Zabed ◽  
Suely Akter ◽  
Junhua Yun ◽  
Guoyan Zhang ◽  
Faisal N. Awad ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Biofuel Production ◽  
Biological Pretreatment ◽  
Recent Advances

Inhibition of Maize Caffeate 3-O-Methyltransferase by Nitecapone as a Possible Approach to Reduce Lignocellulosic Biomass Recalcitrance

2020 ◽  
Author(s):  
Angela Valderrama Parizotto ◽  
Ana Paula Ferro ◽  
Rogério Marchiosi ◽  
Aline Finger-Teixeira ◽  
Jennifer Munik Bevilaqua ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Biomass Recalcitrance

Recent advances in the pretreatment of microalgal and lignocellulosic biomass: A comprehensive review

2020 ◽  
Vol 298 ◽  
pp. 122476 ◽  
Author(s):  
Revathy Sankaran ◽  
Ricardo Andres Parra Cruz ◽  
Harshini Pakalapati ◽  
Pau Loke Show ◽  
Tau Chuan Ling ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Comprehensive Review ◽  
Recent Advances

Theory, practice and prospects of X-ray and neutron scattering for lignocellulosic biomass characterization: towards understanding biomass pretreatment

2015 ◽  
Vol 8 (2) ◽  
pp. 436-455 ◽  
Author(s):  
Gang Cheng ◽  
Xin Zhang ◽  
Blake Simmons ◽  
Seema Singh
Keyword(s):  
Neutron Scattering ◽  
Detailed Analysis ◽  
Lignocellulosic Biomass ◽  
Small Angle ◽  
Small Angle Scattering ◽  
Biomass Pretreatment ◽  
Biomass Recalcitrance ◽  
X Ray ◽  
Angle Scattering ◽  
Biomass Characterization

We present a detailed analysis of application of wide and small angle scattering techniques to study the structures of cellulose and lignin which are relevant to biomass recalcitrance.

scholarly journals Greener Pretreatment Approaches for the Valorisation of Natural Fibre Biomass into Bioproducts

Polymers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2971
Author(s):  
Mohd Nor Faiz Norrrahim ◽  
Muhammad Roslim Muhammad Huzaifah ◽  
Mohammed Abdillah Ahmad Farid ◽  
Siti Shazra Shazleen ◽  
Muhammad Syukri Mohamad Misenan ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Advanced Technology ◽  
Chemical Pretreatment ◽  
Biological Pretreatment ◽  
Essential Requirement ◽  
Main Drawback ◽  
Recent Advances ◽  
Alternative Approach

The utilization of lignocellulosic biomass in various applications has a promising potential as advanced technology progresses due to its renowned advantages as cheap and abundant feedstock. The main drawback in the utilization of this type of biomass is the essential requirement for the pretreatment process. The most common pretreatment process applied is chemical pretreatment. However, it is a non-eco-friendly process. Therefore, this review aims to bring into light several greener pretreatment processes as an alternative approach for the current chemical pretreatment. The main processes for each physical and biological pretreatment process are reviewed and highlighted. Additionally, recent advances in the effect of different non-chemical pretreatment approaches for the natural fibres are also critically discussed with a focus on bioproducts conversion.

Sign in / Sign up

Export Citation Format

Share Document