Antimicrobial and Antifungal Properties of Madder Root (Rubia tinctorum) Colorant Used as an Environmentally-Friendly Wood Preservative

Abstract

The aim of this study was to determine the antifungal and antimicrobial properties of madder root extract when used as an environmentallyfriendly wood preservative and against blue stain. Plant dyestuff was extracted from the root of madder by using an ultrasonic assisted method and then applied to Turkish oriental beech, Scots pine, oak, and walnut wood blocks with the immersion (classic) and immersion + ultrasonic assisted methods. For mordants, ferrous sulfate, aluminum sulfate, copper sulfate, and vinegar were used. In order to compare the performances of the natural paints, a synthetic dye was used. The abilities of the extracts to suppress attack by brown rot (Postia placenta) and white rot (Trametes versicolor) were investigated. Treated blocks were exposed to P. placenta and T. versicolor attacks for 16 weeks according to the TS 5563-EN 113 method. Antimicrobial activity of the extracts was determined with the agar dilution method by using the disk diffusion method for bacteria. Results showed that the mordant mixes were considerably more resistant to fungal decay compared to their untreated and synthetic counterparts. In general, control (non-mordant) and vinegar mixtures showed good performance against brown and white rot fungi. Copper mixes showed better antimicrobial activity against all types of microorganisms. In conclusion, it was found that madder root extracts and mordant mixes could be used as wood preservatives.

Activity of Anthracenediones and Flavoring Phenols in Hydromethanolic Extracts of Rubia tinctorum against Grapevine Phytopathogenic Fungi

“…Sacc., Postia placenta (Fr.) M.J. Larsen and Lombard, Trametes versicolor (L.) Lloyd) has also been reported, albeit not in a quantitative manner [ 47 , 48 ].…”

Bio-based Methods with Potentials for Application in Wooden Furniture Industry

“…Treatment with natural products can change the surface properties of wood and thus reduce the leaching of other protectants (Fernández-Costas et al, 2017). Multifunctional protectants that also serve as dyes have been investigated (Colak, 2016;Ozen et al, 2014). Furthermore, protectants can be extracted from waste materials.…”

Decay Resistance and Color Change of Pine and Beech Wood Impregnated with R. Luteum and R. Ponticum Plant Extracts

“…In this context, one of the subjects that are considered as a scientific alternative and studied scientifically is herbal extracts and tannins (Goktas et al, 2008;Tascioglu et al, 2013;Broda, 2020). These extractives are compounds that naturally protect wood from biological degradation (Toshiaki, 2001;Windeisen et al, 2002;Kartal et al, 2006;Lin et al, 2007;Goktas et al, 2010;Ozen et al, 2014;Colak, 2016). In addition, extracts can affect the color, odor, drying, adhesion, water absorption and acoustic properties of wood (Tanaka et al, 2008).…”