Lettuce Gets a Healthy Sun Tan
Monday, May 18, 2009 - 16:28
in Mathematics & Economics
Salad dressing aside, a pile of spinach has more nutritional value than a wedge of iceberg lettuce. That's because darker colors in leafy vegetables are often signs of antioxidants that are thought to have a variety of health benefits. Now a team of plant physiologists has developed a way to make lettuce darker and redder--and therefore healthier--using ultraviolet light-emitting diodes (LEDs).