Cashew nuts go great with a cold beer or G&T on a hot day. And if you are sitting in the sun while imbibing, you might find some use from their shells as well.
Chemists from the University of the Witwatersrand, in collaboration with scientists from Germany, Malawi and Tanzania, have produced aromatic compounds from cashew nut shells with good UVA and UVB absorbance, which can be applied to humans, livestock and industrial coatings for protection from the sun’s harmful UV rays.
This certainly seems to be a win-win, turning a biodegradable waste product into something useful, at probably minimum cost. This is potentially good news for big cashew producers such as Guinea-Bissau, an impoverished West African nation where 12% of the territory is devoted to cultivating the nut. So next time you snack on cashews with a cocktail, spare a thought for the shell which might someday provide a protective shell for your skin.
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