Fate of Carbohydrates and Lignin during Composting and Mycelium Growth of Agaricus bisporus on Wheat Straw Based Compost

Edita Jurak, Arjen M. Punt, Wim Arts, Mirjam A. Kabel, Harry Gruppen*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

41 Citations (Scopus)
19 Downloads (Pure)

Abstract

In wheat straw based composting, enabling growth of Agaricus bisporus mushrooms, it is unknown to which extent the carbohydrate-lignin matrix changes and how much is metabolized. In this paper we report yields and remaining structures of the major components. During the Phase II of composting 50% of both xylan and cellulose were metabolized by microbial activity, while lignin structures were unaltered. During A. bisporus' mycelium growth (Phase III) carbohydrates were only slightly consumed and xylan was found to be partially degraded. At the same time, lignin was metabolized for 45% based on pyrolysis GC/MS. Remaining lignin was found to be modified by an increase in the ratio of syringyl (S) to guaiacyl (G) units from 0.5 to 0.7 during mycelium growth, while fewer decorations on the phenolic skeleton of both S and G units remained.

Original languageEnglish
Article number0138909
Number of pages16
JournalPLoS ONE
Volume10
Issue number10
DOIs
Publication statusPublished - 5-Oct-2015
Externally publishedYes

Keywords

  • GENOME SEQUENCE
  • BUTTON MUSHROOM
  • LIFE-CYCLE
  • ACIDS
  • CULTIVATION
  • DEGRADATION

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