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.

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

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 A Comprehensive Review on Advanced Sustainable Woven Natural Fibre Polymer Composites

Polymers ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 471
Author(s):  
H. A. Aisyah ◽  
M. T. Paridah ◽  
S. M. Sapuan ◽  
R. A. Ilyas ◽  
A. Khalina ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Polymeric Materials ◽  
Major Effect ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Lignocellulosic Materials ◽  
Structural Composites ◽  
Detailed Review ◽  
Green Materials ◽  
Manufacturing Parameters

Over the last decade, the progressive application of natural fibres in polymer composites has had a major effect in alleviating environmental impacts. Recently, there is a growing interest in the development of green materials in a woven form by utilising natural fibres from lignocellulosic materials for many applications such as structural, non-structural composites, household utilities, automobile parts, aerospace components, flooring, and ballistic materials. Woven materials are one of the most promising materials for substituting or hybridising with synthetic polymeric materials in the production of natural fibre polymer composites (NFPCs). These woven materials are flexible, able to be tailored to the specific needs and have better mechanical properties due to their weaving structures. Seeing that the potential advantages of woven materials in the fabrication of NFPC, this paper presents a detailed review of studies related to woven materials. A variety of factors that influence the properties of the resultant woven NFRC such as yarn characteristics, fabric properties as well as manufacturing parameters were discussed. Past and current research efforts on the development of woven NFPCs from various polymer matrices including polypropylene, polylactic acid, epoxy and polyester and the properties of the resultant composites were also compiled. Last but not least, the applications, challenges, and prospects in the field also were highlighted.

scholarly journals Chemical Pretreatment-Independent Saccharifications of Xylan and Cellulose of Rice Straw by Bacterial Weak Lignin-Binding Xylanolytic and Cellulolytic Enzymes

2017 ◽  
Vol 83 (22) ◽  
Author(s):  
Thitiporn Teeravivattanakit ◽  
Sirilak Baramee ◽  
Paripok Phitsuwan ◽  
Somphit Sornyotha ◽  
Rattiya Waeonukul ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Rice Straw ◽  
Chemical Pretreatment ◽  
Environment Friendly ◽  
Glucose Yield ◽  
Content Type ◽  
Enzyme Pretreatment ◽  
One Step ◽  
Arabinoxylan Arabinofuranohydrolase ◽  
Xylanolytic Enzyme

ABSTRACT Complete utilization of carbohydrate fractions is one of the prerequisites for obtaining economically favorable lignocellulosic biomass conversion. This study shows that xylan in untreated rice straw was saccharified to xylose in one step without chemical pretreatment, yielding 58.2% of the theoretically maximum value by Paenibacillus curdlanolyticus B-6 PcAxy43A, a weak lignin-binding trifunctional xylanolytic enzyme, endoxylanase/β-xylosidase/arabinoxylan arabinofuranohydrolase. Moreover, xylose yield from untreated rice straw was enhanced to 78.9% by adding endoxylanases PcXyn10C and PcXyn11A from the same bacterium, resulting in improvement of cellulose accessibility to cellulolytic enzyme. After autoclaving the xylanolytic enzyme-treated rice straw, it was subjected to subsequent saccharification by a combination of the Clostridium thermocellum endoglucanase CtCel9R and Thermoanaerobacter brockii β-glucosidase TbCglT, yielding 88.5% of the maximum glucose yield, which was higher than the glucose yield obtained from ammonia-treated rice straw saccharification (59.6%). Moreover, this work presents a new environment-friendly xylanolytic enzyme pretreatment for beneficial hydrolysis of xylan in various agricultural residues, such as rice straw and corn hull. It not only could improve cellulose saccharification but also produced xylose, leading to an improvement of the overall fermentable sugar yields without chemical pretreatment. IMPORTANCE Ongoing research is focused on improving “green” pretreatment technologies in order to reduce energy demands and environmental impact and to develop an economically feasible biorefinery. The present study showed that PcAxy43A, a weak lignin-binding trifunctional xylanolytic enzyme, endoxylanase/β-xylosidase/arabinoxylan arabinofuranohydrolase from P. curdlanolyticus B-6, was capable of conversion of xylan in lignocellulosic biomass such as untreated rice straw to xylose in one step without chemical pretreatment. It demonstrates efficient synergism with endoxylanases PcXyn10C and PcXyn11A to depolymerize xylan in untreated rice straw and enhanced the xylose production and improved cellulose hydrolysis. Therefore, it can be considered an enzymatic pretreatment. Furthermore, the studies here show that glucose yield released from steam- and xylanolytic enzyme-treated rice straw by the combination of CtCel9R and TbCglT was higher than the glucose yield obtained from ammonia-treated rice straw saccharification. This work presents a novel environment-friendly xylanolytic enzyme pretreatment not only as a green pretreatment but also as an economically feasible biorefinery method.

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

Study on lignin-free lignocellulosic biomass and PSF-PEG membrane compatibility

BioResources ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 1063-1075
Author(s):  
Abiodun A. Amusa ◽  
Abdul L. Ahmad ◽  
Jimoh K. Adewole
Keyword(s):  
Contact Angle ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Lignocellulosic Biomass ◽  
Biomedical Applications ◽  
Composite Membranes ◽  
Hydroxyl Groups ◽  
Chemical Pretreatment ◽  
Physical And Chemical ◽  
Porosity Measurements

Lignocellulosic biomass was delignified by combining physical and chemical pretreatment techniques. Then, a polysulfone-polyethylene glycol blend, which was compatible with the lignin-free biomass (0 wt% to 3.0 wt%), was used to fabricate composite membranes. The presence of hydroxyl groups after the pretreatment was evaluated via Fourier transform infrared spectroscopy. The rheology of the polymer solutions was assessed via the viscometric method. Also, the hydrophobicity of the fabricated membranes was determined using contact angle and porosity measurements. The fabricated membranes with near superhydrophobic properties (a contact angle of approximately 140°) based on this study revealed that contactor systems and biomedical applications would benefit from this modification.

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

Dual potassium salt-assisted lyophilization of natural fibres for the high-yield synthesis of one-dimensional carbon microtubes for supercapacitors and the oxygen reduction reaction

2020 ◽  
Vol 44 (16) ◽  
pp. 6297-6311 ◽  
Author(s):  
Jiawei Qi ◽  
Wendu Zhang ◽  
Haozhi Zhou ◽  
Lang Xu
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Potassium Salt ◽  
Nitrogen Doping ◽  
Freeze Drying ◽  
Natural Fibre ◽  
Reduction Reaction ◽  
Natural Fibres ◽  
High Yield ◽  
One Dimensional

Natural fibre-derived carbon microtubes exhibit excellent performances as supercapacitor electrodes and oxygen reduction electrocatalysts via dual-potassium-salt-assisted freeze-drying and post-nitrogen doping.

scholarly journals Characterisation of Natural Fibre Reinforcements and Composites

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Richard K. Cullen ◽  
Mary Margaret Singh ◽  
John Summerscales
Keyword(s):  
Polymer Matrix Composites ◽  
Natural Fibre ◽  
Natural Fibres ◽  
Matrix Composites ◽  
Principal Candidates ◽  
Reinforced Polymer ◽  
Ecological Implications ◽  
Fibre Reinforced Polymer ◽  
Eu Directives ◽  
Plant Stem

Recent EU directives (e.g., ELV and WEEE) have caused some rethinking of the life cycle implications of fibre reinforced polymer matrix composites. Man-made reinforcement fibres have significant ecological implications. One alternative is the use of natural fibres as reinforcements. The principal candidates are bast (plant stem) fibres with flax, hemp, and jute as the current front runners. The work presented here will consider the characterisation of jute fibres and their composites. A novel technique is proposed for the measurement of fibre density. The new rule of mixtures, extended for noncircular cross-section natural fibres, is shown to provide a sensible estimate for the experimentally measured elastic modulus of the composite.

Sign in / Sign up

Export Citation Format

Share Document