Expeditious production of concentrated glucose-rich hydrolysate from sugarcane bagasse and its fermentation to lactic acid with high productivity

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dc.contributor.authorBaral, Pratibha
dc.contributor.authorPundir, Anushka
dc.contributor.authorKumar, Vinod
dc.contributor.authorKurmi, Akhilesh K.
dc.contributor.authorAgrawal, Deepti
dc.date.accessioned2020-08-26T14:14:31Z
dc.date.available2020-08-26T14:14:31Z
dc.date.issued2020-08-22
dc.description.abstractSugarcane bagasse (SCB) is anticipated to emerge as a potential threat to waste management in India on account of cheap surplus energy options and lower incentives through its co-generation. Through biotechnological intervention, the efficient utilization of SCB is seen as an opportunity. The present study aimed towards expeditious production of concentrated glucose-rich hydrolysate from SCB. Alkali pretreated biomass was chosen for hydrolysis with a new generation cellulase cocktail, Cellic CTec2 dosed at 25 mg g−1 glucan content. A two-step (9% + 9%) substrate feeding strategy was adopted with a gap of an hour, and saccharification was terminated in three different ways. Irrespective of the methods employed for termination, ∼84.5% cellulose was hydrolyzed releasing ≥100 g L−1 glucose from 18% biomass. Direct use of glucose-rich filtrates yielded 69.2 ± 2.5 g L−1 of L (+) lactic acid (LA) using thermophilic Bacillus coagulans NCIM 5648. The best-attained glucose and LA productivities during separate hydrolysis and fermentation (SHF) in the present study were 5.27 and 2.88 g L−1 h−1, respectively. A green and sustainable process is demonstrated for the production of industrially relevant sugars from SCB at high productivity and its valorization to bio-based LA.en_UK
dc.identifier.citationBaral P, Pundir A, Kumar V, et al., (2020) Expeditious production of concentrated glucose-rich hydrolysate from sugarcane bagasse and its fermentation to lactic acid with high productivity. Food and Bioproducts Processing, Volume 124, November 2020, pp. 72-81en_UK
dc.identifier.issn0960-3085
dc.identifier.urihttps://doi.org/10.1016/j.fbp.2020.08.005
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/15724
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectCellic CTec2en_UK
dc.subjectAlkali pretreated sugarcane bagasseen_UK
dc.subjectHigh-solids saccharificationen_UK
dc.subjectGlucose-rich filtrateen_UK
dc.subjectProductivityen_UK
dc.subjectLactic aciden_UK
dc.titleExpeditious production of concentrated glucose-rich hydrolysate from sugarcane bagasse and its fermentation to lactic acid with high productivityen_UK
dc.typeArticleen_UK

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