
好词典

源自拉丁语 'carota'(胡萝卜)和希腊语后缀 '-oid'(类似),因其最早从胡萝卜中发现而得名。
❶ 类胡萝卜素是一类天然色素,广泛存在于植物、藻类和某些细菌中,赋予它们黄色、橙色或红色。
“Carotenoids are responsible for the bright colors of many fruits and vegetables.”
(类胡萝卜素使许多水果和蔬菜呈现鲜艳的颜色。)
“Beta-carotene, a type of carotenoid, is converted into vitamin A in the body.”
(β-胡萝卜素是一种类胡萝卜素,在体内转化为维生素A。)
dietary carotenoids — 指通过饮食摄入的类胡萝卜素,通常来源于水果、蔬菜等天然食物。
“Eating a variety of colorful vegetables ensures adequate intake of dietary carotenoids.”
(食用多种颜色的蔬菜可确保摄入足够的膳食类胡萝卜素。)