Sugarcane bagasse based biorefineries in India: potential and challenges

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dc.contributor.authorKonde, Kakasaheb S.
dc.contributor.authorNagarajan, Sanjay
dc.contributor.authorKumar, Vinod
dc.contributor.authorPatil, Sanjay V.
dc.contributor.authorRanade, Vivek V.
dc.date.accessioned2021-01-18T16:29:43Z
dc.date.available2021-01-18T16:29:43Z
dc.date.issued2020-11-10
dc.description.abstractSugarcane bagasse (SCB) is one of the world's most abundant agricultural residues and in an Indian context, ∼100 million tonnes per annum is produced. The current use of SCB is restricted to the cogeneration of steam and power; however considering its potential, cogeneration is not the best valorisation route. Furthermore, with falling electricity prices and reducing global sugar prices due to excess sugar stock, it is inevitable that the waste generated (SCB) by sugar mills are utilised for generating revenue sustainably. With this background, this review aims to put forth a biorefinery perspective based on SCB feedstock. Biogas and bioethanol are the Government of India's current focus with policies and subsidies clearly pointing towards a sizeable future market. Therefore, alongside these biofuels, high-value chemicals such as xylitol, succinic acid and lactic acid were identified as other desired products for biorefineries. This review firstly discusses SCB pre-treatment options based on end applications (saccharification or anaerobic digestion, AD). Next, state-of-the-art for each of these aspects was reviewed and our perspective on a profitable biorefinery is presented. We propose an AD based biorefinery where vortex-based hydrodynamic cavitation was found to be the best choice for pre-treatment. AD is considered not only a bioprocess for energy production here but also a ‘pre-treatment’, where partial conversion of holocellulose leads to a digestate rich in a loosened fibre matrix. This digestate rich in cellulose can be enzymatically hydrolysed and further valorised biochemically. This approach would be cost effective and provide a sustainable waste management route for sugar mills.en_UK
dc.identifier.citationKonde KS, Nagarajan S, Kumar V, et al., (2020) Sugarcane bagasse based biorefineries in India: potential and challenges. Sustainable Energy and Fuels, Volume 5, Issue 1, 2021, pp. 52-78en_UK
dc.identifier.issn2398-4902
dc.identifier.urihttps://doi.org/10.1039/D0SE01332C
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/16192
dc.language.isoenen_UK
dc.publisherRoyal Society of Chemistryen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectIndian sugar industryen_UK
dc.subjectsugar manufacturing processen_UK
dc.subjectsugarcane bagasse (SCB)en_UK
dc.subjectSCB fly ashen_UK
dc.subjectsugarcane trashen_UK
dc.titleSugarcane bagasse based biorefineries in India: potential and challengesen_UK
dc.typeArticle

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