The white rot fungi, Oxyporus latemarginatus, Rigidoporus
vinctus, Phanerochaete chrysosporium and Coriolus
versicolor used in this study were obtained from the culture
center of the Forest Research Institute Malaysia (FRIM).
The asexual stage was kept in Potato Dextrose Agar (PDA)
slants and sub-cultured every 2 months. For inoculation,
they were grown in PDA slants at 28°C for 7 days, after
which the asexual spores are normally produced. Fungal
spores at the concentration of 107spores/mL were prepared
in sterilized distilled water for use in pretreatment.