The use of essential oils as “green” biocides. Their interaction with painting mater

The article discusses foreign and domestic experience in the use of natural compounds (essential oils and their components), as well as a mixture of one essential oil and a hydrolate of another essential oil for fungicidal treatment of paintings. The results of a study of the effect of vapors of seven essential oils - dill oil, mint oil, sage oil, thuja oil, fennel oil, fir oil, bay oil and three components of essential oils - terpineol (contained in orange oil, camphor oil), eugenol (the main component of clove oil), citral (contained in lemon essential oil) on the development of three pure fungal cultures: Penicillium chrysogenum 3T, Aspergillus niger 2T, Ulocladium sp. 2B. Eugenol, citral, and terpeniol turned out to be the most effective. It has been established that essential oils and their components have a fungicidal effect. Samples of painting materials show the effect of essential oil vapors on varnishes and drying oil immediately after treatment and after artificial aging, yellowing of the treated samples is noticeable in comparison with the control. The revealed interaction of essential oils with varnishes and drying oil is not a limitation for their use as fungicides, but it should be taken into account when processing paintings.