“紫罗酮”的英语？

叶黄素是含紫罗酮环的二 羟基 类胡萝卜素,在自然界广泛存在.Lutein is dihydroxy - carotenoids with the ionone ring systems distributed widely in nature.叶黄素和玉米黄质是含紫罗酮环的二 羟基 类胡萝卜素,在自然界广泛存在.Lutein and zeaxanthin are both dihydroxy - carotenoids with the...