Feasibility assessment of bioethanol production from humic acid-assisted alkaline pretreated Kentucky bluegrass (Poa pratensis L.) followed by downstream enrichment using direct contact membrane distillation.
Cellulosic ethanol
Downstream purification
Humic acid
Kentucky bluegrass
Membrane distillation
Journal
Bioresource technology
ISSN: 1873-2976
Titre abrégé: Bioresour Technol
Pays: England
ID NLM: 9889523
Informations de publication
Date de publication:
Sep 2022
Sep 2022
Historique:
received:
23
05
2022
revised:
22
06
2022
accepted:
23
06
2022
pubmed:
28
6
2022
medline:
17
8
2022
entrez:
27
6
2022
Statut:
ppublish
Résumé
The effective fractionation of structural components of abundantly available lignocellulosic biomass is essential to unlock its full biorefinery potential. In this study, the feasibility of humic acid on the pretreatment of Kentucky bluegrass biomass in alkaline condition was assessed to separate 70.1% lignin and hydrolyzable biocomponents. The humic acid-assisted delignification followed by enzymatic saccharification yielded 0.55 g/g of reducing sugars from 7.5% (w/v) pretreated biomass loading and 16 FPU/g of cellulase. Yeast fermentation of the biomass hydrolysate produced 76.6% (w/w) ethanol, which was subsequently separated and concentrated using direct contact membrane distillation. The hydrophobic microporous flat-sheet membrane housed in a rectangular-shaped crossflow module and counter-current mode of flow of the feed (hot) and distillate (cold) streams yielded a flux of 11.6 kg EtOH/m
Identifiants
pubmed: 35760251
pii: S0960-8524(22)00850-1
doi: 10.1016/j.biortech.2022.127521
pii:
doi:
Substances chimiques
Humic Substances
0
Ethanol
3K9958V90M
Lignin
9005-53-2
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
127521Informations de copyright
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