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Tolerance of the Nanocellulose-Producing Bacterium Gluconacetobacter xylinus to Lignocellulose-Derived Acids and Aldehydes
Umeå universitet, Teknisk-naturvetenskapliga fakulteten, Kemiska institutionen.
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2014 (Engelska)Ingår i: Journal of Agricultural and Food Chemistry, ISSN 0021-8561, E-ISSN 1520-5118, Vol. 62, nr 40, s. 9792-9799Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Lignocellulosic biomass serves as a potential alternative feedstock for production of bacterial nanocellulose (BNC), a high-value added product of bacteria such as Gluconacetobacter xylinus. The tolerance of G. xylinus to lignocellulose derived inhibitors (formic acid, acetic acid, levulinic acid, furfural, and S-hydroxymethylfurfural) was investigated. Whereas 100 mM formic acid completely suppressed the metabolism of G xylinus, 250 mM of either acetic acid or levulinic acid still allowed glucose metabolism and BNC production to occur. Complete suppression of glucose utilization and BNC production was observed after inclusion of 20 and 30 mM furfural and 5-hydroxymethylfurfural, respectively. The highest yields observed were 88% for furoic acid/furfural and 76% for 5-hydroxymethyl-2-furoic acid/5-hydroxymethylfurfural. These results are the first demonstration of the capability of G. xylinus to tolerate lignocellulose derived inhibitors and to convert furan aldehydes.

Ort, förlag, år, upplaga, sidor
2014. Vol. 62, nr 40, s. 9792-9799
Nyckelord [en]
Gluconacetobacter xylinus, bacterial nanocellulose, lignocellulose, aliphatic acids, furan aldehydes, otransformation
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Kemi
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URN: urn:nbn:se:umu:diva-96610DOI: 10.1021/jf502623sISI: 000343016200021OAI: oai:DiVA.org:umu-96610DiVA, id: diva2:766712
Tillgänglig från: 2014-11-28 Skapad: 2014-11-24 Senast uppdaterad: 2018-06-07Bibliografiskt granskad

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Winestrand, SandraJönsson, Leif

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