WOOD RESEARCH Volume 71, Number 3, 2026
EKİM ELÇİN SOYTÜRK, Muratcan Aldemir, and SAIP NAMI KARTAL

Bioremediation of Wood Treated with CCA-C, ACQ, and MCQ Wood Preservatives by Phanerochaete chrysosporium Fungal Strains

This study investigated the bioremediation of wood treated with copper–chromium– arsenic (CCA-C), alkaline copper quat (ACQ), and micronized copper quat (MCQ) using two Phanerochaete chrysosporium fungal strains. Wood flour samples were incubated in fungal liquid cultures over 1 to 10 days. Fungal treatments removed substantially more copper than distilled water controls across all preservative types. Lower preservative loadings yielded copper extraction rates exceeding 90–95% for ACQ and MCQ, whereas higher loadings reduced efficiency. The P. chrysosporium Me strain demonstrated superior performance during later remediation stages. These findings confirm that P. chrysosporium effectively mobilizes copper from soluble and micronized formulations, offering a viable strategy for detoxifying waste wood and enabling resource recovery.

WOOD RESEARCH Volume 66, Number 4, 2021
Jiapeng Wang, Zhenju Bi, Zhangjing Chen, Li Yan, and Yafang Lei

Decay resistance, dimensional stability and mechanical strength of poplar wood modified with plant-derived compounds

The cinnamaldehyde, salicylic acid, stearolic acid and citric acid were plant-derived organic compounds that can be activated to fungi, that could degrade the wood in long term. The compounds with concentrations of 3%, 5% and 7% assisted by different dispersants were impregnated into poplar (Populus nigra L.) specimens by the vacuum-pressure method. After that, weight percentage gain (WPG), decay resistance against white-rot fungi (Trametes versicolor) and brown-rot fungi (Gloeophyllum trabeum), color change, dimensional stability and mechanical properties including modulus of elasticity (MOE) and modulus of rupture (MOR) were measured. The results indicated that cinnamaldehyde impregnated poplar showed antifungi activity against both G. trabeum and T. versicolor, and citric acid impregnated poplar showed antifungi activity against G. trabeum. The color of poplar specimens before and after impregnated cinnamaldehyde and citric acid had a little change, dimensional stability had been improved and mechanical properties especially for MOR increased significantly.