An eco-friendly biomass pretreatment strategy utilizing reusable enzyme mimicking nanoparticles for lignin depolymerization and biofuel production

Rajak, Rajiv Chandra; Saha, Pathikrit; Singhvi, Mamata; Kwak, Darae; Kim, Danil; Lee, Huijeong; Deshmukh, Aarti R.; Bu, Yingjie; Kim, Beom Soo

doi:10.1039/d1gc01456k

Cited by 57 publications

(36 citation statements)

References 86 publications

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“…The application of nanotechnology for lignin depolymerization can significantly improve lignin degradation efficiency (Du et al, 2020). Novel cerium doped iron oxide nano particle catalyst developed by Rajak et al (2021) was able to mimic peroxidase activity and directly degrade lignin from corn cobs into a mixture of low molecular products. This lignin degradation process required only low operation temperatures (25 °C) to reach 44% (wt) degradation of lignin within 30 h (Rajak et al, 2021).…”

Section: Outlook: Opportunities and Challenges For Lignin Use In Biorefinery Industrymentioning

confidence: 99%

“…Novel cerium doped iron oxide nano particle catalyst developed by Rajak et al (2021) was able to mimic peroxidase activity and directly degrade lignin from corn cobs into a mixture of low molecular products. This lignin degradation process required only low operation temperatures (25 °C) to reach 44% (wt) degradation of lignin within 30 h (Rajak et al, 2021). Continuous lignin depolymerization systems equipped with catalysts can be used to increase the lignin degradation efficiency (Nandiwale et al, 2020).…”

Section: Outlook: Opportunities and Challenges For Lignin Use In Biorefinery Industrymentioning

confidence: 99%

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A Review: Depolymerization of Lignin to Generate High-Value Bio-Products: Opportunities, Challenges, and Prospects

et al. 2022

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Lignin is identified as a promising candidate in renewable energy and bioproduct manufacturing due to its high abundance, polymeric structure, and biochemical properties of monomers. Thus, emerging opportunities exist in generating high-value small molecules from lignin through depolymerization. This review aims at providing an overview of the major technologies of lignin depolymerization. The feasibility of large-scale implementation of these technologies, including thermal, biological, and chemical depolymerizations, are discussed in relation to potential industrial applications. Lignin as a renewable alternative to petroleum-based chemicals has been well documented. This review attempts to emphasize potential applications of lignin-derived monomers and their derivatives as bioactives in food, natural health product, and pharmaceutical sectors. The critical review of the prospects and challenges of lignin-derived bioproducts reveals that the advancement of research and development is required to explore the applications of depolymerization of lignins to their full potential.

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Section: Outlook: Opportunities and Challenges For Lignin Use In Biorefinery Industrymentioning

confidence: 99%

Section: Outlook: Opportunities and Challenges For Lignin Use In Biorefinery Industrymentioning

confidence: 99%

A Review: Depolymerization of Lignin to Generate High-Value Bio-Products: Opportunities, Challenges, and Prospects

et al. 2022

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“…Isolation of the lignocellulosic biomass fractions is a difficult process started with pretreatment which is intended as a means of isolating the three components from depolymerization in subsequent heterogeneous catalytic steps. In general, this objective is achieved by the deconstruction of the complex matrix composed of lignin and hemicellulose in lignocellulose (Jusner et al 2021;Rajak et al 2021). Compared with one-pot deconstruction of whole lignocellulose (Sun et al 2018b;Tian et al 2022;Xia et al 2016;Liao et al 2020), emerging strategies are introduced to directly isolate components from lignocellulose to obtain tailor-made fractions through and for catalysis, thereby capitalizing on the full potential of catalysis in the refinement of lignocellulosic fractions into chemicals and fuels (Renders et al 2018).…”

Section: Isolation Of the Lignocellulosic Fractionsmentioning

confidence: 99%

Heterogeneous strategies for selective conversion of lignocellulosic polysaccharides

et al. 2022

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Lignocellulosic biomass is the most abundant renewable carbon resource on earth, for which many efforts have been made to convert it using various chemocatalytic processes. Heterogeneously chemocatalytic conversion conducted based on reusable solid catalysts is the process with the greatest potential studied presently. This review provides insights into the representative achievements in the research area of heterogeneous chemical catalysis technologies for the production of value-added chemicals from lignocellulosic polysaccharides (cellulose and hemicellulose). Popular approaches for the conversion of lignocellulosic polysaccharides into chemicals, including hydrolyzation (glucose, xylose 2 and arabinose), dehydration (5-hydroxymethylfurfuran, furfural and levulinic acid), hydrogenation/hydrogenolysis (sorbitol, mannitol, xylitol, 1,2-propylene glycol, ethlyene glycol and ethanol), selective oxidation (gluconic acid and lactic acid), have been comprehensively reviewed.However, technological barriers still exist, which have to be overcome to further integrate hydrolysis with the refinery processes based on multifunctional solid catalysts, and convert ligncellulosic polysaccharides into value-added fine chemicals. In general, the approaches and technologies are discussed and critically evaluated in terms of the possibilities and potential for further industrial implementation.

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“…Molybdenum oxide supported by carbon nanotubes were deemed as an economic alternative to reduce lignin to phenolic derivatives which prove useful for further processes of biofuel production [ 73 ]. A Fenton-like process utilizing iron oxide nanoparticles by mimicking their peroxidase activity to reduce lignin was successful in the process while also not detrimentally impacting the carbohydrate content of the biomass [ 74 ]. This approach is gaining research limelight, and many versions and derivatives are under investigation.…”

Section: Introductionmentioning

confidence: 99%

Experimental and computational studies of cellulases as bioethanol enzymes

et al. 2022

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Bioethanol industries and bioprocesses have many challenges that constantly impede commercialization of the end product. One of the bottlenecks in the bioethanol industry is the challenge of discovering highly efficient catalysts that can improve biomass conversion. The current promising bioethanol conversion catalysts are microorganism-based cellulolytic enzymes, but lack optimization for high bioethanol conversion, due to biological and other factors. A better understanding of molecular underpinnings of cellulolytic enzyme mechanisms and significant ways to improve them can accelerate the bioethanol commercial production process. In order to do this, experimental methods are the primary choice to evaluate and characterize cellulase’s properties, but they are time-consuming and expensive. A time-saving, complementary approach involves computational methods that evaluate the same properties and improves our atomistic-level understanding of enzymatic mechanism of action. Theoretical methods in many cases have proposed research routes for subsequent experimental testing and validation, reducing the overall research cost. Having a plethora of tools to evaluate cellulases and the yield of the enzymatic process will aid in planning more optimized experimental setups. Thus, there is a need to connect the computational evaluation methods with the experimental methods to overcome the bottlenecks in the bioethanol industry. This review discusses various experimental and computational methods and their use in evaluating the multiple properties of cellulases.

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An eco-friendly biomass pretreatment strategy utilizing reusable enzyme mimicking nanoparticles for lignin depolymerization and biofuel production

Abstract: Pretreatment of lignocellulosic biomass to specifically depolymerise lignin moieties without loss of carbohydrates as well as to minimize the generation of harmful intermediates during the process is a major challenge...

Cited by 57 publications

References 86 publications

A Review: Depolymerization of Lignin to Generate High-Value Bio-Products: Opportunities, Challenges, and Prospects

A Review: Depolymerization of Lignin to Generate High-Value Bio-Products: Opportunities, Challenges, and Prospects

Heterogeneous strategies for selective conversion of lignocellulosic polysaccharides

Experimental and computational studies of cellulases as bioethanol enzymes

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