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

红色紫色色调来自花青等辅助色，而类胡萝叶黄分别产生橙色黄色。

Roasting pumpkins, carrots and sweet potatoes increases available carotenoids.

烤南瓜、烤胡萝烤红薯可以增加可用的类胡萝。

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起的。

While carotenoids are present in most green plants, they only become visible each fall when chlorophyll gets broken down to save energy for the winter.

然而，类胡萝在大多数绿色植物中都有，它们只有在叶绿都分解掉之后才能看从而为度过冬天保存能量。

Those on short-term organic diets do show higher levels of carotenoids, polyphenols, Vitamin C and E, LDL cholesterol, antioxidant activity, immune system markers, and ever higher semen quality.

那些短期内食用有机食品的人确实体内含有更多的类胡萝、多酚、维生 C E、密度脂蛋白胆固醇、抗氧化活性、免疫系统标记，以及更高的精液质量。

Carrots have other carotenoids, but for beta carotene, you'd actually absorb about 7 times more beta-carotene if you took it suspended in oil.

胡萝中还有其它类胡萝，如果油一同食用 β-胡萝的吸收率可提高七倍。

The yellow and orange stone fruits such as peaches are high in the carotenoids we turn into vitamin A and which are antioxidants.

黄色橙色的核果类水果中类胡萝含量很高，如桃子，这些类胡萝会转变成维他命 A，具有抗氧化作用。

You might know this thanks to flamingos: They're born gray, but turn pink thanks to pigments called carotenoids in crustaceans they eat.

它们出生的时候是灰色的，但是由于它们食用的甲壳纲动物体内叫做类胡萝的东西变成了粉色。

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

β-胡萝之类的类胡萝除了能转化为维生 A 以外还有其它功能。

There are over 1,100 types of carotenoids, pigments which absorb high energy blue and green light, while leaving behind the lower energy red and yellow light.

有超过 1100 种类胡萝，这是一种吸收高能量的蓝光绿光，而留下能量的红、黄光的色。

This is because carrots don't contain Vitamin A but a carotenoid called beta carotene which is a “provitamin” — a substance that can be converted into a vitamin.

因为胡萝所含的并不是维生 A，而是一种叫做β-胡萝的类胡萝，它是一种“维生原”，一种可以转化成维生的物质。

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

最后一点是，类胡萝的吸收效率随着饮食中类胡萝摄入的升高而降。

So, it makes sense that this research from Ohio state found that avocado is a good way to help absorb carotenoids like beta-carotene and convert them to Vitamin A.

因此，俄亥俄州的这项研究发现言之有理，是说，牛油果有助于类胡萝（如β-胡萝）的吸收并将其转化为维生 A。

The cardinal's bright red comes from carotenoids, the same pigments that make carrots orange, while the black of its face is from melanin, the pigment that colors our hair and skin.

红衣凤头鸟鲜艳的红色源自类胡萝，这种色同样让胡萝呈现橙色，而它面部黑色则来自黑色，这种色也赋予我们的头发皮肤颜色。

For example, And this is something that I think I really broke the news on with Genius Foods was the role of dietary carotenoids.

例如，我认为我在《天才食物》一书中率先报道了膳食类胡萝的作用。

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，一种叫做角黄的红色，存在于虾、甲壳类动物藻类中。

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

这种藻类会产生一种叫做类胡萝的色化合物，有助于吸收阳光，同时也使其呈现粉红色。

Animals can't produce carotenoids themselves and need to get them through their food like berries, fruits, or shrimp.

动物不能自己产生类胡萝，需要通过食物（如浆果、水果或虾）来获取。

Carotenoids are a natural coloring in plants.

类胡萝是植物中的天然色。

Some of these carotenoid compounds that I mentioned earlier.

一些我之前提到的类胡萝化合物。