The dairy industry is searching for more uses for whey protein, now an inexpensive byproduct. UVM dairy scientists have already shown how protein molecules can be stretched and manipulated into a polymer to form a film that would coat and protect wood. But there are hurdles. Guo must find a way to make the varnish more resistant to scratches and dents, and to make it shiny. Just as important, he's looking for an ingredient that will repel bacteria.
Whey protein offers an attractive food source where microbes can flourish.
His idea is to add either propolis, a natural germ killer found in honey which bees obtain from resinous buds of poplar and pine trees, or an extract from a wood such as cedar. The development of a whey-based finish will take time, and the money to hire a polymer scientist, Guo says. Robson says the wood varnish should be welcomed by everyone. J. Harlow For more information about whey-based varnish, contact Mingruo Guo . The natural channel design will include tree planting and vegetation to maintain the restoration.