Red bugs called cochineal are the source for a red color used in dyes.

被称为胭脂虫的红色虫子是红色染料的来源。

They used a red dye to dye the bacteriophages in this experiment.

他们使用红色染料在这个实验中对噬菌体进行染色。

Like, I was using one vegetable, a bee root, for a red dye, and I had to chop up a whole pile of it.

比如，我用一种蔬菜，甜菜根，来制作红色染料，我不得不切碎一大堆。

Back in his day, a few scientists had been tinkering with staining tissues, especially with a compound called carmine — a red dye derived from the scales of a crushed-up insects.

在他那个时代，一家一直在修补染色组织，特别是一种叫做胭脂红的化合物——一种从压碎的昆虫鳞片中提取的红色染料。

He simply used the red dye the factory had available at the time, transforming the bubblegum from gray into the iconic pink confection we know today.

他只是使用了工厂当时可用的红色染料，将泡泡糖从灰色变为我们今天所知的标志性粉红色糖果。

On Saturday, California Governor Gavin Newsom signed a law that bans Red dye No.3 and other potentially harmful food additives and consumer goods.

上周六，加利福尼亚州长加文·纽森签署了一项法律，禁止使用红色染料3号其他具有 潜在有害物质的食品添加剂品。

What the FDA is doing specifically is revoking the authorization of red dye number 3 as a type of color additive.

美国食品及药物管理局颁布的具体做法是撤销3号红色染料作为颜色添加剂的授权。

We marked a weak rip current with red fluorescent dye, which otherwise would not have been apparent.

我们用红色荧光染料标记了一个微弱的离岸流，否则会十分不明显。

Conservationists in South Africa are infusing a special red dye into the horns of live rhinos.

南非环保人士将一种特殊的红色染料注入活犀牛的角中。

They never use harmful ingredients like Red Dye No.

他们从不使用有害成分，比如红色40号染料。

Tartrazine (TAR-truh-zeen) worked especially well. This orangey-red dye colors foods brightly. Since it absorbs bluer wavelengths, it helped light pass through water and fat molecules at similar speeds. That turned skin transparent.

柠檬黄（TAR-truh-zeen）表现尤为出色。这种橙红色的染料能使食物色泽鲜艳。由于它能吸收较短波长的蓝光，有助于光线以相近速度穿透水脂肪分子，从而使皮肤变得透明。

So that would indicate that the coat was probably owned and worn by someone who worked at the mill, and they got that red dye on it.

所以这表明这件大衣很可能属于并被工厂里的人穿着，他们把那种红色染料沾到了上面。

And I think there's a lot of fear mongering people who are like saying really absurd things like, Oh gosh, red dye is made from petroleum.

我认为有很多散布恐慌的人在说一非常荒谬的话， 比如，天哪， 红色染料是由石油制成的。

As the plants grew, scientists injected the plant stems with red and blue dyes so that they could distinguish between the roots of competing plants.

随着植物生长，家向植物茎部注入了红色蓝色染料，以便区分竞争植物的根系。

Well, it should turn red on its own, but I don't think there's any harm in adding some more synthetic chemical red dye.

嗯， 它应该会自己变红，但我觉得再加一合成化红色染料也没什么坏处。

It's name comes from the Moroccan city Fez, the city that historically produced dye made from crimson berries to color the hat.

它的名字来自摩洛哥城市非斯，这座城市历史上生产由深红色浆果制成的染料来为帽子着色。

This bright red dye is produced by a specific kind of true bug: female cochineal scale insects.

这种鲜艳的红色染料是由一种特定的真虫——雌性胭脂虫产生的。

So why add the red dye just in case?

既然如此，何必多此一举添加红色染料呢？

Eosinophils take up a red acidic dye called eosin; their main function is to detoxify foreign proteins, especially those causing allergic reactions.

嗜酸性粒细胞吸收一种叫做伊红的红色酸性染料;它们的主要功能是解除外源蛋白质，特别是那引起过敏反应的蛋白质的毒性。

Today, the main exporters of the red dye are Peru and the Canary Islands, where the bugs are farmed on prickly pear plantations.

如今，红色染料的主要出口国是秘鲁加那利群岛， 在这地方， 昆虫在刺梨种植园中被养殖。