叶黄素是一种类胡萝卜素，在很多的植中的存在，特别是在羽衣甘蓝中。
Lutein is a carotenoid found in a variety of plants, especially kale.
番茄中大量含有一种类胡萝卜素即番茄红素，其所发挥的作用不可小觑。
A carotenoid called lycopene, which tomatoes contain in abundance, appeared to be responsible. But scientists were puzzled: tomato juice didn't seem to have a protective effect.
伯利维说，这种多汁的水果是番茄红素最好的食物来源，该番茄红素是一种类胡萝卜素，使西红市呈现红色。
This juicy fruit is the best dietary source of lycopene, a carotenoid that gives tomatoes their red hue, Béliveau says.
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