Sorghum: Health food, sweetener and now, clothing dye

Sorghum has long been a staple food in many parts of the world, but in the US, it's best known as a sweetener and livestock feed. As demand for the grain soars, so does the amount of waste husks. To reduce this waste, scientists report in the journal ACS Sustainable Chemistry & Engineering a new use for it: a wool dye that can add ultraviolet protection and fluorescence properties to clothing. Read more