Single-step, single-organism bioethanol production and bioconversion of lignocellulose waste materials by phlebioid fungal species

Hans Mattila, Jaana Kuuskeri, Taina Lundell

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Ethanol production from non-pretreated lignocellulose was carried out in a consolidated bioprocess with wood-decay fungi of phlebioid Polyporales. Ethanol production was attempted on glucose, spruce wood sawdust and waste core board. Substantial quantities of ethanol were achieved, and isolate Phlebia radiata 0043 produced 5.9 g/L of ethanol reaching the yield of 10.4% ethanol from core board lignocellulose substrate. Acidic initial culture conditions (pH 3) induced ethanol fermentation compared to the more neutral environment. Together with bioethanol, the fungi were able to produce organic acids such as oxalate and fumarate, thus broadening their capacity and applicability as efficient organisms to be utilized for bioconversion of various lignocelluloses. In conclusion, fungi of Phlebia grow on, convert and saccharify solid lignocellulose waste materials without pre-treatments resulting in accumulation of ethanol and organic acids. These findings will aid in applying fungal biotechnology for production of biofuels and biocompounds.
Original languageEnglish
Pages (from-to)254-261
Number of pages8
JournalBioresource Technology
Volume225
DOIs
Publication statusPublished - 1 Feb 2017
MoE publication typeA1 Journal article-refereed

Keywords

  • Bioconversion
  • Consolidated bioprocessing
  • Lignocellulose waste
  • Phlebia radiata
  • White rot fungi

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