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

Morais, H. and Ramos, C. and Forgács, E. and Cserháti, T. and Oliviera, J. (2001) Lignin-modifying enzymes of Pleurotus ostreatus grown on agro-residues. Acta Alimentaria, 30 (4). pp. 363-372. ISSN 0139-3006

Preview

Text aalim.30.2001.4.5.pdf Download (61kB) | Preview

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.

Actions (login required)

Edit Item