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.author Baral, Pratibha
dc.contributor.author Pundir, Anushka
dc.contributor.author Kumar, Vinod
dc.contributor.author Kurmi, Akhilesh K.
dc.contributor.author Agrawal, Deepti
dc.date.accessioned 2020-08-26T14:14:31Z
dc.date.available 2020-08-26T14:14:31Z
dc.date.issued 2020-08-22
dc.identifier.citation Baral 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, Available online 22 August 2020 en_UK
dc.identifier.issn 0960-3085
dc.identifier.uri https://doi.org/10.1016/j.fbp.2020.08.005
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/15724
dc.description.abstract Sugarcane 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.language.iso en en_UK
dc.publisher Elsevier en_UK
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/4.0/ *
dc.subject Cellic CTec2 en_UK
dc.subject Alkali pretreated sugarcane bagasse en_UK
dc.subject High-solids saccharification en_UK
dc.subject Glucose-rich filtrate en_UK
dc.subject Productivity en_UK
dc.subject Lactic acid en_UK
dc.title Expeditious production of concentrated glucose-rich hydrolysate from sugarcane bagasse and its fermentation to lactic acid with high productivity en_UK
dc.type Article en_UK


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