Applied Biochemistry and Microbiology

, Volume 39, Issue 3, pp 257–264

Isolation and Characterization of Humin-Like Substances Produced by Wood-Degrading White Rot Fungi

  • I. S. Yavmetdinov
  • E. V. Stepanova
  • V. P. Gavrilova
  • B. V. Lokshin
  • I. V. Perminova
  • O. V. Koroleva
Article

DOI: 10.1023/A:1023571426331

Cite this article as:
Yavmetdinov, I.S., Stepanova, E.V., Gavrilova, V.P. et al. Applied Biochemistry and Microbiology (2003) 39: 257. doi:10.1023/A:1023571426331

Abstract

Three samples of high-molecular-weight humin-like substances were obtained by solid-phase cultivation of Coriolus hirsutus and/or Cerrena maxima on oat straw. The yield of humin-like substances amounted to 1.38–2.26% of the weight of the plant substrate consumed. These substances, produced both by individual and mixed cultures of the basidiomycetes, were shown to be similar in their structure and physicochemical properties. According to the data of IR and 13C-NMR spectroscopy, the substances contained aromatic fragments and were close to soil humic acids. Studies of the dynamics of laccase production suggested that the humin-like substances were produced via direct degradation of lignin macromolecules with direct involvement of extracellular laccase.

Copyright information

© MAIK “Nauka/Interperiodica” 2003

Authors and Affiliations

  • I. S. Yavmetdinov
    • 1
  • E. V. Stepanova
    • 1
  • V. P. Gavrilova
    • 2
  • B. V. Lokshin
    • 3
    • 4
  • I. V. Perminova
    • 3
    • 4
  • O. V. Koroleva
    • 1
  1. 1.Russian Academy of SciencesBach Institute of BiochemistryMoscowRussia
  2. 2.Russian Academy of SciencesKomarov Institute of BotanySt. PetersburgRussia
  3. 3.Russian Academy of SciencesNesmeyanov Institute of Organoelemental CompoundsMoscowRussia
  4. 4.Faculty of ChemistryMoscow State UniversityMoscowRussia

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