Lignin-modifying enzymes of Pleurotus ostreatus grown on agro-residues

H. Morais, C. Ramos, E. Forgács, T. Cserháti, J. Oliveira

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7 Citations (Scopus)

Abstract

The activity of lignin peroxidase (LiP) and laccase produced by Pleurotus ostreatus in culture media composed of agro-residues was measured by spectrophotometry. The overall enzyme activity and its dependence on the composition of culture media were determined by using spectral mapping technique followed by non-linear mapping. The relationships between the parameters of enzyme production and the composition of culture media and fermentation time were assessed by stepwise regression analysis. It was established that P. ostreatus did not produce LiP. The lowest enzyme production was observed in culture media containing extract of wheat straw. This finding indicates that the use of other agro-residues as substitutes for wheat straw is justified. It was further established that the enzyme production was also influenced by the pH of the culture media. It was found that enzyme activity quadratically depended on the fermentation time.

Original languageEnglish
Pages (from-to)363-372
Number of pages10
JournalActa Alimentaria
Volume30
Issue number4
DOIs
Publication statusPublished - 1 Dec 2001

Keywords

  • Nonlinear mapping
  • Pleurotus ostreatus
  • Spectral mapping

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