A just lately printed examine exhibits promising outcomes from combining edible turkey tail fungus with an answer of wooden fibers. The top product is a pure sustainable waterproof coating which may be be a substitute for single-use plastic meals wrap and artificial paper cup coatings.
College of Maine researchers needed to develop an environmentally secure coating that may resist water, oil and grease however was additionally was food-safe, so that they experimented with the mycelium from the turkey tail mushroom (Trametes versicolor).
The mycelium is a root-like construction discovered within the wooden on which the mushroom grows, and it takes the type of a dense tangle of featherlike strands which are additionally waterproof. Mixed with tiny wooden cellulose fibers known as nanofibrils (utilized in paper-making) it was utilized to create an oxygen-, oil- and grease-proof floor.
“Our hope is that by offering extra methods to doubtlessly scale back our reliance on single-use plastics, we might help reduce the waste that results in landfills and the ocean; nature affords elegant, sustainable options to assist us get there,” says Assoc. Prof. Caitlin Howell, corresponding creator of the examine.
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The fungus and wooden fiber mixture was utilized in skinny coats on the surfaces of two varieties of paper, denim, polyester felt and birch wooden veneer, and left in an oven to dry for a day. An efficient waterproof base concerning the thickness of a coating of paint was produced after three days of fungus progress in heat circumstances, and by the fourth day the coating produced patchy yellow, orange or tan markings.
Water droplets that had been subsequently positioned on the coated supplies beaded up into small spheres, whereas droplets positioned on untreated surfaces unfold out or soaked in utterly. The fungal coating was additionally efficient in stopping absorption of different liquids such because the gasoline n-heptane, toluene-a solvent and castor oil, demonstrating nice promise as an efficient barrier in opposition to different liquids apart from water.
Tailored from Langmuir 2025, DOI: 10.1021/acs.langmuir.5c03185
Mycelium-based merchandise are actually changing into extra prevalent within the area of constructing building – not less than on an experimental foundation – akin to oyster-mushroom-and-bamboo-based tiles produced from leftover scraps, created by scientists from Nanyang Technological College in Singapore. The tiles resemble elephant pores and skin with its bumpy knobby floor, and are designed to passively hold a constructing cool in sizzling months as properly enhance power effectivity throughout cooler months.
Different mushroom tech in constructing building consists of mycocrete, a kind of concrete manufactured from mycelium and grains together with components that present bulk, in improvement at Newcastle College in Britain.
A paper on the College of Maine examine was just lately printed within the journal Langmuir.
Supply: American Chemical Society
