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WSE Defense: Wood-Rotting Fungal Pigments as Colorant Coatings on Oil-Based Textile Dyes

Natural dyes have been used to color textiles for centuries, but with the shift to mass production, the use of synthetic dyes has increased due to their lower cost, high color stability, and easy mass production.  Unfortuately, synthetic dyes have many health and environmental issues, and is a major problem in terms of wastewater production.  Fungal pigments, especially those derived from spalting fungi, offer the color stability of synthetic pigments.  Research up to this point has carried spalting fungal pigments in dichloromethane (DCM), a solvent with human toxicity concerns.  Recent research has shown that the pigments can be carried in raw linseed oil, but how this carrier affects the pigments' properties on substrates such as textires, has not been researched.  This research sought to understand the behavior of a particular fungal pigment--the naturally occuring napthoquinone crystal 'dramada' from Scytalidium cuboideum' when carried in raw linseed oil and applied to natural and synthetic fabrics.  Of particular interest was if the carrier altered the known attributes of the pigment, such as its intense color stability.  Results from this work should remove the final barrier to industrialization of 'dramada' as a natural, ecofriendly, renewable textile dye.


Mardonio Palomino was born in Peru, and is currently pursuing a Master's degree in Wood Science at OSU.  He did his undergraduate at the Universidad Nacional Agraria La Molina in Lima, Peru studying in the program of Forest Engineering.  He has been working in sustainability projects for a private organization.  In 2015 he met Dr. Robinson and became interested in her work, and shortly joined her lab in 2016.  Mardonio is exploring different alternatives for his future, including sustainability, wood manufacturing, textile research, and engineering projects.

Friday, December 28, 2018 at 9:00am to 10:00am

Richardson Hall, 107
3180 SW Jefferson Way, Corvallis, OR 97331

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Lecture or Presentation

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Academic, Research


Faculty and Staff, Student, Industry Partner





Department of Wood Science & Engineering
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Department of Wood Science & Engineering

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