Document Type
Article
Publication Date
7-24-2014
Department
College of Forest Resources and Environmental Science
Abstract
The extracellular colorants produced by Chlorociboria aeruginosa, Scytalidium cuboideum, and Scytalidium ganodermophthorum, three commonly utilized spalting fungi, were tested against a standard woodworker’s aniline dye to determine if the fungal colorants could be utilized in an effort to find a naturally occurring replacement for the synthetic dye. Fungal colorants were delivered in two methods within a pressure treater—the first through solubilization of extracted colorants in dichloromethane, and the second via liquid culture consisting of water, malt, and the actively growing fungus. Visual external evaluation of the wood test blocks showed complete surface coloration of all wood species with all colorants, with the exception of the green colorant (xylindein) from C. aeruginosa in liquid culture, which did not produce a visible surface color change. The highest changes in external color came from noble fir, lodgepole pine, port orford cedar and sugar maple with aniline dye, cottonwood with the yellow colorant in liquid culture, lodgepole pine with the red colorant in liquid culture, red alder and Oregon maple with the green colorant in dichloromethane, and sugar maple and port orford cedar with the yellow colorant in dichloromethane. The aniline dye was superior to the fungal colorants in terms of internal coloration, although none of the tested compounds were able to completely visually color the inside of the test blocks.
Publication Title
Materials
Recommended Citation
Robinson, S. C.,
Hinsch, E.,
Weber, G.,
Leipus, K.,
&
Cerney, D.
(2014).
Wood colorization through pressure treating: The potential of extracted colorants from spalting fungi as a replacement for woodworkers’ aniline dyes.
Materials,
7(8), 5427-5437.
http://doi.org/10.3390/ma7085427
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/1977
Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.
Version
Publisher's PDF
Publisher's Statement
© 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/). Publisher’s version of record: https://doi.org/10.3390/ma7085427