Bioconversion of sugarcane tops to bioethanol and other value added products: An overview

Khaire, Kaustubh Chandrakant; Moholkar, Vijayanand S.

doi:10.1016/j.mset.2020.12.004

Cited by 37 publications

(29 citation statements)

References 130 publications

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“…El Chami et al ( 2020 ) and Khaire et al ( 2021 ) reported that sustainability of the sugar industry and especially the sugarcane field, requires the participation of all the stakeholders taking a holistic approach and adopting new emerging frameworks considering topics such as: i) any country, region, or scale; ii) increase in sugarcane productivity and expansion of sugarcane production; iii) comparing benefits and / or impacts on ecosystem outcomes; iv) methods of experiments and / or modeling and software; v) studies that consider benefits / impacts on water, land and air resources, biodiversity, wildlife, environment, food, health, income, and other social aspects—e.g., labor rights, child labor; v) health of the soil, sugar cane fields and workers, soil chemical properties, soil biological properties, soil physical properties, water resources, air quality, human well-being, impacts on health, impacts on farmers' income, labor conditions, biodiversity.…”

Section: Constraints and Barrier To Sugar Industry Sustainabilitymentioning

confidence: 99%

Bioindicators for the Sustainability of Sugar Agro-Industry

Aguilar‐Rivera

2022

Sugar Tech

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The worldwide sugar industry presents a productive inertia and a fragile sustainability due to there are marginal advances in the productivity, productive diversification, and reduction of the environmental impact in cane crop fields, sugar factories, distilleries, and non-centrifuged sugar production. The complexity of sustainability evaluation in sugar industry is highlighted by the incorporation of many criteria including both quantitative and qualitative issues, measured by different units or at least the development of standards for benchmarking. The key to successful sustainability will ultimately depend on the progress in sugarcane productivity without increasing the cultivated area and decreases the environmental impacts without the lack of coordination between public policies, stakeholders, and markets which would have benefits and wellness on social, economic, and environmental aspects. The aim of this research was to carry out a review about the sustainability frameworks, indicators, constraints, and barrier to transit the sugar industry to sustainability. The results present opportunities and strengths of sugar industry related to 2030 agenda for sustainable development and circular economy as an useful guidance to formulate strategies to maximizing the potential of the sugar industry to a sustainable biofactory.

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Section: Constraints and Barrier To Sugar Industry Sustainabilitymentioning

confidence: 99%

Bioindicators for the Sustainability of Sugar Agro-Industry

Aguilar‐Rivera

2022

Sugar Tech

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“…Their study showed the feasibility and maximum potential for zero waste biorefinery. Khaire et al [ 131 ] also overviewed bioethanol production, xylo-oligosaccharides and lignin from sugarcane tops. For adding value to the process, xylan and lignin separation from biomass before enzymatic hydrolysis is also a beneficial approach.…”

Section: Circular Economy/biorefinery Approach In Bioethanol Processmentioning

confidence: 99%

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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“…Well-ordered with crystalline and amorphous regions [14] Few crystalline structure [14] Branched, single chain and amorphous heteropolysaccharide [2] An amorphous, highly branched and heterogeneous aromatic polymer [2] Degree of polymerization 100 -10,000 [14] 50 -200 [3] 4,000 [14]…”

Section: Molecular Arrangementmentioning

confidence: 99%

“…The main components of hemicellulose are Xylan, Mannan, Xyloglucan, Galactan, Arabinogalactan and Arabinan [14]. Other monosaccharide sugars in hemicelluloses include arabinose, mannose, xylose, galactose and rhamnose [2]. Hemicelluloses are grouped based on the highest residual sugar content in the polymer structure.…”

Section: Monomermentioning

confidence: 99%

A review of sugarcane bagasse pretreatment for bioethanol production

Nasution

Lelinasari

Kelana

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Bioethanol is a new and renewable energy source. The second-generation bioethanol production process from lignocellulosic materials has development opportunities. This is because the first generation of bioethanol raw materials is generally a food source. Diversification of raw materials for the bioethanol production process can be developed through the use of non-food or waste sources. The process of developing bioethanol from local non-food resources or waste can increase energy security and the added value of these sources. One of the potential sources is sugarcane bagasse. The production process of bioethanol from sugarcane bagasse consists of: (i) pretreatment; (ii) enzymatic hydrolysis; (iii) fermentation; (iv) distillation; and (v) dehydration. The major composition of sugarcane bagasse consists of cellulose, hemicellulose, and lignin. Sugarcane bagasse requires a pretreatment process to separate lignin and hemicellulose from cellulose, reduce the crystallinity of cellulose and facilitate the hydrolysis of cellulose. This review focuses on sugarcane bagasse pretreatment for bioethanol production. There are several types of pretreatment processes, including (i) physical pretreatment; (ii) acid pretreatment; (iii) alkaline pretreatment; (iv) organosolv pretreatment; (v) steam explosion; and (vi) wet oxidation. Physical pretreatment is the process of physically changing the size of the sugarcane bagasse to be smaller. Chemical pretreatment is the separation process of lignin and hemicellulose from cellulose using acid compounds. Alkaline pretreatment is the separation process of lignin and hemicellulose from cellulose using alkali compounds. Organosolv pretreatment is lignocellulosic pretreatment using organic solvents. Steam explosion is the process of disrupting the complicated structure of sugarcane bagasse using steam. Wet oxidation is the process of biomass treatment with water, oxygen, or air. Steam explosion is superior to other processes in terms of hemicellulose solubilization, reaction time and no toxic substances.

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Bioconversion of sugarcane tops to bioethanol and other value added products: An overview

Cited by 37 publications

References 130 publications

Bioindicators for the Sustainability of Sugar Agro-Industry

Bioindicators for the Sustainability of Sugar Agro-Industry

Lignocellulosic Biomass Valorization for Bioethanol Production: a Circular Bioeconomy Approach

A review of sugarcane bagasse pretreatment for bioethanol production

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