One last thing, the absorption efficiency of carotenoids decreases as the amount of dietary carotenoids increases.

最后一点是，类胡萝卜素的吸收效率随着饮食中类胡萝卜素摄入的升高而降低。

She says that yolk color is mainly caused by the carotenoids that chickens eat.

她说蛋黄的颜色主要是由鸡吃的类胡萝卜素引起的。

Carotenoids like beta-carotene have their own functions other than just conversion to Vitamin A.

β-胡萝卜之类的类胡萝卜素除了能转化为维生素 A 以外还有其它功能。

Red and purple hues stem from secondary pigments called anthocyanins, while carotenoids and xanthophylls yield oranges and yellows, respectively.

红色和紫色色调来自花青素等辅助色素，而类胡萝卜素和叶黄素分别产生橙色和黄色。

Carotenoids are a natural coloring in plants.

类胡萝卜素是植物中的天然色素。

Their color, which actually ranges from red to purple, comes from pigments like carotenoids, which they use to capture light energy.

它们的颜色，实际上从红色到紫色不等，来自类胡萝卜素等色素，它们用来捕捉光能。

Carotenoids, along with polyphenols like EGCG in green tea, offer natural sun protection.

类胡萝卜素与绿茶中的 EGCG 等多酚一起提供天然防晒保护。

Carotenoids and polyphenols accumulate in skin and absorb sunlight of various wavelengths, according to Farris.

Farris 表示， 类胡萝卜素和多酚会积聚在皮肤中并吸收各种波长的阳光。

The algae produces pigment compounds called carotenoids that help it absorb sunlight, and also make it look reddish-pink.

藻类会产生称为类胡萝卜素的色素化合物，帮助它吸收阳光，并使它看起来呈红粉色。

Spoonbills are ingesting the carotenoid  a red pigment called canthaxanthin, which can be found in shrimp, crustaceans,   and algae.

琵鹭正在摄取类胡萝卜素，一种叫做角黄素的红色素，存在于虾、甲壳类动物和藻类中。