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- W4364322929 abstract "Heat-treated wood has good dimensional stability, durability, and color, but its susceptibility to fungal growth affects its commercial value. In this study, lumber harvested from mature Masson’s pine (<i>Pinus massoniana</i> Lamb.) was vacuum impregnated with a basic copper salt solution (copper hydroxide, diethanolamine, and polyethylene glycol 200) prior to heat-treatment at 220°C for 3 h. Antifungal properties, surface chemistry, crystal structure and sugar contents were tested, compared with heat treatment alone. The results showed that the samples treated by heating without copper salt treatment showed poor suppression of fungal growth, the copper-impregnated heat-treated wood suppressed (100%) the growth of <i>Botryodiplodia theobromae</i> Pat., <i>Aspergillus niger</i> V. Tiegh., <i>Penicillium citrinum</i> Thom, and <i>Trichoderma viride</i> Pers. The combined results of X-ray photoelectron spectroscopy, X-ray diffraction and sugars analysis suggested that fungal inhibition by the heat-treated copper-bearing Masson’s pine was mainly due to the reduction of the metal salt by PEG200 at high temperature to generate copper nanoparticles. In addition, the reduced sugar content of the treated timber, and hence the nutrient substrate for spoilage microbes, reduced in the presence of the metal salts at high-temperature. This study has demonstrated an effective method of increasing low-grade wood’s utility and commercial value." @default.
- W4364322929 created "2023-04-12" @default.
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- W4364322929 date "2023-01-01" @default.
- W4364322929 modified "2023-10-18" @default.
- W4364322929 title "In Situ Generation of Copper Nanoparticles in Heat-Treated Copper-Containing Masson’s Pine as a Preservative Process for Sawn Timber" @default.
- W4364322929 doi "https://doi.org/10.32604/jrm.2023.027441" @default.
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