Overcoming cellulose recalcitrance in woody biomass for the lignin-first biorefinery.
Catalysis
Cellulose
Delignification
Lignin
Poplar
Recalcitrance
Journal
Biotechnology for biofuels
ISSN: 1754-6834
Titre abrégé: Biotechnol Biofuels
Pays: England
ID NLM: 101316935
Informations de publication
Date de publication:
2019
2019
Historique:
received:
17
04
2019
accepted:
15
06
2019
entrez:
13
7
2019
pubmed:
13
7
2019
medline:
13
7
2019
Statut:
epublish
Résumé
Low-temperature swelling of cotton linter cellulose and subsequent gelatinization in trifluoroacetic acid (TFA) greatly enhance rates of enzymatic digestion or maleic acid-AlCl Low-temperature (- 20 °C) treatment of S-lignin-rich poplar wood particles in TFA slightly increased yields of glucose from enzymatic digestions and HMF and LA from maleic acid-AlCl Genetic modification of lignin composition can enhance the portfolio of aromatic products obtained from lignocellulosic biomass while promoting disassembly into biofuel and bioproduct substrates. CDL enhances rates of enzymatic digestion and chemical conversion, but cellulose remains intrinsically recalcitrant. Cold TFA is sufficient to overcome this recalcitrance after CDL treatment. Our results inform a 'no carbon left behind' strategy to convert total woody biomass into lignin, cellulose, and hemicellulose value streams for the future biorefinery.
Sections du résumé
BACKGROUND
BACKGROUND
Low-temperature swelling of cotton linter cellulose and subsequent gelatinization in trifluoroacetic acid (TFA) greatly enhance rates of enzymatic digestion or maleic acid-AlCl
RESULTS
RESULTS
Low-temperature (- 20 °C) treatment of S-lignin-rich poplar wood particles in TFA slightly increased yields of glucose from enzymatic digestions and HMF and LA from maleic acid-AlCl
CONCLUSIONS
CONCLUSIONS
Genetic modification of lignin composition can enhance the portfolio of aromatic products obtained from lignocellulosic biomass while promoting disassembly into biofuel and bioproduct substrates. CDL enhances rates of enzymatic digestion and chemical conversion, but cellulose remains intrinsically recalcitrant. Cold TFA is sufficient to overcome this recalcitrance after CDL treatment. Our results inform a 'no carbon left behind' strategy to convert total woody biomass into lignin, cellulose, and hemicellulose value streams for the future biorefinery.
Identifiants
pubmed: 31297159
doi: 10.1186/s13068-019-1503-y
pii: 1503
pmc: PMC6599248
doi:
Types de publication
Journal Article
Langues
eng
Pagination
171Déclaration de conflit d'intérêts
Competing interestsThe authors declare that they have no competing interests.
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