Julia NanThe Chemistry of ColorLarson, Nina. "The Chemistry of Color."Scientific America. Scientific America. 28 Oct. 2008 < http://www.sciam.com/article.cfm?id=the-chemistry-of-color>.Genetic researchers have studied plant pigments for many reasons in recent years, and one major reason was to proven health benefits to humans. For example, the carotenoids increase levels of vitamin A; together with anthocyanins and other flavonoids, they provide protection against cancer and heart disease. But the decorative value of chemical pigments has also stirred interest among scientists. Scientists have worked hard to make violets red and roses blue. Engineers from Tohoku University in Japan discovered that enzyme responsible for making some flowers bright yellow. Toru Nakayama and his colleagues identify the enzyme that turns chemicals called chalcones into aurones, flavonoids found in the yellow flowers of many plants. They began with 32
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Chemical substance, chemical substances, Pigment, Flavonoid, Biological pigment