Optimization of combined hydrothermal and mechanical refining pretreatment of forest residue biomass for maximum sugar release during enzymatic hydrolysis

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dc.contributor.authorHossain, Md Shahadat
dc.contributor.authorTherasme, Obste
dc.contributor.authorVolk, Timothy A.
dc.contributor.authorKumar, Vinod
dc.contributor.authorKumar, Deepak
dc.date.accessioned2024-12-19T15:25:18Z
dc.date.available2024-12-19T15:25:18Z
dc.date.freetoread2024-12-19
dc.date.issued2024-10-02
dc.date.pubOnline2024-10-02
dc.description.abstractThis study aimed to investigate the effect of chemical-free two-stage hydrothermal and mechanical refining pretreatment on improving the sugar yields during enzymatic hydrolysis of forest residue biomass (FRB) and optimize the pretreatment conditions. Hot-water pretreatment experiments were performed using a central composite design for three variables: temperature (160–200 °C), time (10–20 min), and solid loading (10–20%). Hydrothermally pretreated biomass was subsequently pretreated using three cycles of disk refining. The combined pretreatment was found to be highly effective in enhancing sugar yields during enzymatic hydrolysis, with almost 99% cellulose conversion for biomass pretreated at 213.64 °C, 15 min, and 15% solid loading. However, the xylose concentrations in the hydrolysate were found to be low under these conditions due to sugar degradation. Thus, less severe optimum pretreatment conditions (194.78 °C, 12.90 min, and 13.42% solid loading) were predicted using a second-order polynomial model. The response surface model optimized the hydrothermal pretreatment of FRB and predicted the glucan, xylan, and overall conversions of 94.57%, 79.78%, and 87.84%, respectively, after the enzymatic hydrolysis. The model-predicted biomass conversion values were validated by the experimental results.
dc.description.journalNameEnergies
dc.description.sponsorshipSUNY College of Environmental Science and Forestry
dc.description.sponsorshipThis research was funded by the McIntire Stennis Program at SUNY ESF
dc.identifier.citationHossain MS, Therasme O, Volk TA, et al., (2024) Optimization of combined hydrothermal and mechanical refining pretreatment of forest residue biomass for maximum sugar release during enzymatic hydrolysis. Energies, Volume 17, Issue 19, October 2024, Article number 4929
dc.identifier.eissn1996-1073
dc.identifier.elementsID554902
dc.identifier.issn1996-1073
dc.identifier.issueNo19
dc.identifier.paperNo4929
dc.identifier.urihttps://doi.org/10.3390/en17194929
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/23276
dc.identifier.volumeNo17
dc.languageEnglish
dc.language.isoen
dc.publisherMDPI
dc.publisher.urihttps://www.mdpi.com/1996-1073/17/19/4929
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjecthydrothermal pretreatment
dc.subjectdisk milling
dc.subjectforest residue biomass
dc.subjectenzymatic hydrolysis
dc.subjectresponse surface methodology (RSM)
dc.subjectcentral composite design (CCD)
dc.subject40 Engineering
dc.subject33 Built Environment and Design
dc.subject51 Physical Sciences
dc.subject7 Affordable and Clean Energy
dc.subject33 Built environment and design
dc.subject40 Engineering
dc.subject51 Physical sciences
dc.titleOptimization of combined hydrothermal and mechanical refining pretreatment of forest residue biomass for maximum sugar release during enzymatic hydrolysis
dc.typeArticle
dc.type.subtypeJournal Article
dcterms.dateAccepted2024-09-30

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