Ethanol from lignocellulosic biomass: An in-depth analysis of pre-treatment methods, fermentation approaches and detoxification processes

Devi, Arti; Singh, Anita; Bajar, Somvir; Pant, Deepak; Din, Zaheer Ud

doi:10.1016/j.jece.2021.105798

Cited by 121 publications

(37 citation statements)

References 176 publications

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“…The glycosidic bond connects the glucose units, while the hydrogen bond connects the straight chains of the polymer. Cellulose has a high degree of polymerization, due to which it has low flexibility and is primarily insoluble in water and most of the solvents [ 46 ].…”

Section: Value-added Products From Lcb Componentsmentioning

confidence: 99%

“…Lignin does not take part in the fermentation process; instead, it is used to extract other chemicals, which are majorly used as a part of biorefinery [ 20 ]. The lignin polymer consists of three phenylpropanoid monomeric subunits: guaiacyl (G), syringyl (S) and p-hydroxyphenyl (H) [ 46 ]. The presence of these subunits distinguishes its composition from others, such as softwood or hardwood, and significantly impacts the delignification process.…”

Section: Value-added Products From Lcb Componentsmentioning

confidence: 99%

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Lignocellulosic Biomass Valorization for Bioethanol Production: a Circular Bioeconomy Approach

et al. 2022

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Lignocellulosic biomass generated from different sectors (agriculture, forestry, industrial) act as biorefinery precursor for production of second-generation (2G) bioethanol and other biochemicals. The integration of various conversion techniques on a single platform under biorefinery approach for production of biofuel and industrially important chemicals from LCB is gaining interest worldwide. The waste generated on utilization of bio-resources is almost negligible or zero in a biorefinery along with reduced greenhouse gas emissions, which supports the circular bioeconomy concept. The economic viability of a lignocellulosic biorefinery depends upon the efficient utilization of three major components of LCB—cellulose, hemicellulose and lignin. The heterogeneous structure and recalcitrant nature of LCB is main obstacle in its valorization into bioethanol and other value-added products. The success of bioconversion process depends upon methods used during pre-treatment, hydrolysis and fermentation processes. The cost involved in each step of the bioconversion process affects the viability of cellulosic ethanol. The lignocellulose biorefinery has ample scope, but much-focused research is required to fully utilize major parts of lignocellulosic biomass with zero wastage. The present review entails lignocellulosic biomass valorization for ethanol production, along with different steps involved in its production. Various value-added products produced from LCB components were also discussed. Recent technological advances and significant challenges in bioethanol production are also highlighted in addition to future perspectives. Graphical abstract

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Section: Value-added Products From Lcb Componentsmentioning

confidence: 99%

Section: Value-added Products From Lcb Componentsmentioning

confidence: 99%

Lignocellulosic Biomass Valorization for Bioethanol Production: a Circular Bioeconomy Approach

et al. 2022

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“…for biofuel production (first generation biofuel) causes the problem of food security. The use of biomass feedstock (second generation) in bioethanol production solves this matter in many aspects [100]. Depending on fermentation conditions such as temperature, pH, aeration, and nutrient supplementation microorganisms are susceptible to lignocellulosic hydrolysate to produce bio ethanol [101].…”

Section: Fermentationmentioning

confidence: 99%

Biomass and Energy Production: Thermochemical Methods

Shafizadeh¹,

Danesh²

2022

Biomass, Biorefineries and Bioeconomy

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In this chapter, an overview of bioenergy importance toward energy systems with low (zero or negative) greenhouse gas emissions and general conversion technologies to produce different types of bioenergy products from various biomass feedstock is presented. The bioenergy products from biomass cover all physical phases including solid (biochar), liquid (bio-oil and bio-crude oil), and gases phase (bio syngas) which make them an interesting field in terms of both academic types of research and industrial scale. A discussion on the available technologies for thermochemical, biochemical, and extraction processes is presented, which is followed by some important parameters on each separate process that cause the optimum production rate and desired products. In addition, in the final part, an overview of the technology readiness level for the processes is reported.

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“…Despite the effectiveness of peroxidases in hazardous compounds degradation, an application on an industrial scale cannot be envisaged in a free form, which is often associated with a lack of operational and storage stability. In order to overcome these drawbacks, enzymatic engineering has devoted special attention to the conditioning and immobilization of this protein structure (Devi et al, 2021). In extreme conditions of pH and temperature, the immobilization preserves the free enzyme from denaturation.…”

Section: Introductionmentioning

confidence: 99%

Peroxidase enzymes as green catalysts for bioremediation and biotechnological applications: A review

Sellami

Couvert

Nasrallah

et al. 2022

Science of The Total Environment

103

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Ethanol from lignocellulosic biomass: An in-depth analysis of pre-treatment methods, fermentation approaches and detoxification processes

Cited by 121 publications

References 176 publications

Lignocellulosic Biomass Valorization for Bioethanol Production: a Circular Bioeconomy Approach

Lignocellulosic Biomass Valorization for Bioethanol Production: a Circular Bioeconomy Approach

Biomass and Energy Production: Thermochemical Methods

Peroxidase enzymes as green catalysts for bioremediation and biotechnological applications: A review

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