Grass, when it's lush, and green, and in season, contains beta carotene.

小草正值葱岁月之时富含β-素。

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

她说蛋黄的颜色主是由鸡吃的类素引起的。

Also, cooked carrots have more beta-carotene that can be absorbed by the body.

此外，煮熟的含有更多可以被身体吸收的β-素。

Roasting pumpkins, carrots and sweet potatoes increases available carotenoids.

烤南瓜、烤和烤红薯可以增加可用的类素。

They have betacarotene, which is an important part of the vitamin A pathway.

它们含有β素，这是维生素 A 途径的重组成部分。

The milk is whiter because the animal cannot digest beta carotene, an orange nutrient in many fruits and vegetables.

这种牛奶颜色更白是因为水牛无法消化吸收β-素，而β-素是许多水果和蔬菜所含的一种橙色营养物质。

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

最后一点是，类素的吸收效率随着饮食中类素摄入的升高而降低。

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

红色和紫色色调来素等辅助色素，而类素和叶黄素分别产生橙色和黄色。

This is mostly because the beta carotene is bound up in a hard to digest fiber matrix.

这主是因为β-素与难以消化的纤维基质结合在一起。

This study found that the bioefficacy of beta-carotene from a mixed diet is only 1: 21.

这项研究发现，混合性膳食中的β-素的生物效能仅为二十一分之一。

Carotenoids are a natural coloring in plants.

类素是植物中的天然色素。

In a series of studies, after 3 days of storage, frozen broccoli had higher levels of Vitamin C and Beta-Carotene.

在一系列研究中，经过3天冷冻储存的西兰含有更高水平的维生素C和素。

Carotenoids are the pigments responsible for yellow, orange, and red tones.

类素是产生黄色、橙色和红色色调的色素。

Then, one might be providing Vitamin A as beta carotene where another provides it as retinyl palmitate and so on.

同时，有的产品当中的维生素 A 是β-素，而另一些则是视黄醇棕榈酸酯，等等。

Some of these carotenoids are put into feathers.

一些类素被放入羽毛中。

The tomato-based cold soup is loaded with carotenes, vitamin C and polyphenols, which researchers think may help lower blood pressure.

以番茄为基础的冷汤富含素、维生素 C 和多酚，研究人员认为这可能有助于降低血压。

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

类素与绿茶中的 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， 类素和多酚会积聚在皮肤中并吸收各种波长的阳光。

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

β-之类的类素除了能转化为维生素 A 以外还有其它功能。

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

黄色和橙色的核果类水果中类素含量很高，如桃子，这些类素会转变成维他命 A，具有抗氧化作用。