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Biotransformation of vanillin into vanillyl alcohol by a novel strain of Cystobasidium laryngis isolated from decaying wood
Gävle högskola.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0002-9468-0099
Mid Sweden University, Faculty of Science, Technology and Media, Department of Chemical Engineering.ORCID iD: 0000-0002-5543-2041
Gävle högskola.
2018 (English)In: AMB Express, ISSN 2191-0855, E-ISSN 2191-0855, Vol. 8, no 1, article id 137Article in journal (Refereed) Published
Abstract [en]

Vanillin is an aromatic aldehyde found as a component of lignocellulosic material, and in the cured pods of orchidaceae plants. Like other phenolic substances, vanillin has antimicrobial activity and can be extracted from lignin either by a thermo-chemical process or through microbial degradation. Vanillin, can serve as a model monomer in biodegradation studies of lignin. In the present study, a yeast isolated from decaying wood on the Faroe Islands, was identified as Cystobasidium laryngis strain FMYD002, based on internal transcribed spacer sequence analysis. It demonstrated the ability to convert vanillin to vanillyl alcohol, as detected by ultra-high performance liquid chromatography-quadrupole-time-of-flight. Structural analysis of vanillyl alcohol was carried out by using gas chromatography-mass spectrometry and H-1 NMR spectroscopy, and further verified by synthesis. The reduction of vanillin to vanillyl alcohol has been documented for only a few species of fungi. However, to our knowledge, this biotransformation has not yet been reported for basidiomycetous yeast species, nor for any representative of the subphylum Pucciniomycotina. The biotransformation capability of the present strain might prove useful in the industrial utilisation of lignocellulosic residues.

Place, publisher, year, edition, pages
2018. Vol. 8, no 1, article id 137
Keywords [en]
Vanillin, Cystobasidium, Bioconversion, Biodegradation, Cystobasidiomycetes, Rhodotorula
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-34517DOI: 10.1186/s13568-018-0666-4ISI: 000442555800002PubMedID: 30143905Scopus ID: 2-s2.0-85052069822OAI: oai:DiVA.org:miun-34517DiVA, id: diva2:1251212
Available from: 2018-09-26 Created: 2018-09-26 Last updated: 2018-10-01Bibliographically approved

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Ljunggren, JoelHedenström, Erik

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