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糖自何处来? – 译学馆
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糖自何处来?

Where Does Sugar Come From?

你喜欢时不时地吃些甜食吗?
Do you like to eat a sweet treat every now and then?
我就是 我们许多人都享受在一个特别的甜品时间
I know I do, and a lot of us enjoy a cookieor a piece of candy
吃上一块饼干或一颗糖果
when it’s time for that special goodie.
一个没有蛋糕的生日会是怎样啊
And what’s a birthday without a cake?
但尽管很喜欢这样的小点心
But as much as we might like special snacks like these,
我们也知道它们对身体无益 对吧
we know that they aren’t good for us, right?
幸运的是 当我们想吃甜食的时候
Fortunately, there are lots of healthier choicesout there for
我们还有许多更健康的选择
when we want something sweet to eat.
像苹果 香蕉这类食物
Foods like apples and bananas
里面满满的都是营养
are full of things that are good for our bodies
而且它们也拥有自然甜
and they’re also naturally sweet.
所有的点心和水果吃起来是那么的甜
The reason that both desserts and fruits taste so sweet
这多亏了糖
is thanks to sugar.
那么这些美味的糖都来自哪里呢
So where does all that tasty sugar come from?
不管你信不信 糖的故事开始于太阳
Believe it or not, the story of sugar starts withthe sun!
绿色植物捕获阳光
Green plants catch the light from the sun,
然后吸收其中的能量
and then take the energy in the sunlight,
再结合空气和水中的其他物质
and use it with other materials in the air and water,
就合成了一种糖
to make a kind of sugar,
叫做葡萄糖
called glucose.
植物将这些葡萄糖作为能源
Plants use this glucose as a source of energy,
来帮助自己生长
to help them grow.
然后 当动物 包括我们人类 吃下这些植物时
Then, when animals — including people like us! — eat plants,
我们的身体将植物中的葡萄糖
our bodies use the glucose in the plants for
变成自己的能源 用于生长和运动
our own energy, to grow and play.
多谢了 植物们!
Aw, thanks, plants!
但葡萄糖只是来自植物的
And glucose is just one kind of sugar
其中一种糖类
that comes from plants.
在你家中也许是厨房某个容器里的糖
The sugar that’s probably in the canisters in your kitchen
是另一种来自植物的甜蜜
is another kind of sweet stuff made by plants,
名为蔗糖
called sucrose.
植物通过一种液体将蔗糖从其一处转移
Plants move sucrose around from one part of a plant
到另一处 这液体就叫树汁
to another, in a liquid called sap.
你可能已经知道 我们会从枫树里收集树汁
You might already know that we collect sap from maple trees.
而如果你长时间地煮制这些树汁,直到
If you cook the sap for a really long time, until
其中的大部分水分被蒸发
most of the water in the sap is gone,
留下的甜蜜物质
then the sweet stuff that’s left behind
就是我们所说的枫糖浆
is what we called maple syrup.
不过 枫树只是我们用来制糖的植物的其中之一
But, maple trees are just one plant that we use to get sugar.
我们食用的大部分蔗糖
Most of the sucrose we eat
都来源于一种叫甘蔗的植物
comes from a plant called sugar cane.
甘蔗生长在全年温暖的地区
Sugar cane grows in places where it’s warm all year round.
它与我们生长在草坪上的草类似
and it’s related to the grass that grows in our lawns.
甘蔗又长又粗的茎里贮满了糖
Its long, thick stems are full of sugar, and
在被砍下后 它的茎干会被
when the cane is cut down, the stems can be
压榨 直到榨出全部的汁液 或说“糖汁”
squeezed until all of the sap, or “juice,” comes out.
我们也从另一种植物中获得蔗糖 那就是甜菜
We also get sucrose from another plant, called a sugar beet.
不像甘蔗用茎制汁 我们通过
Instead of getting sap from the stem though, we can
粉碎 蒸煮 压榨甜菜的根来获得
crush, cook, and squeeze the root of the sugar beet to get
它的糖汁
its sweet juice.
所有这些植物都会制造并储存很多的蔗糖 因此
All of these plants make and store a lot of sucrose, so
我们会用它们来制糖 填满我们的糖罐
we use them to make the sugar thatfills up our sugar bowls.
那糖又是怎么从植物里跑到你的糖罐中的呢
But how does it get from the plants and into your bowl?
你吃的糖是用甘蔗
The sugar you eat is made by taking the sap from sugar cane,
或者甜菜的汁液
or the juice from sugar beets,
通过加热
and then heating it,
直到里面的水分蒸干得到的
until the water in the juice is gone.
在水分蒸发过程中 组成糖的小分子
As it dries, the particles that make up sugar
会一点一点地聚集起来 变成小颗粒
stick to each other, making little squares
最终形成晶体小糖块
that eventually form sweet little crystals!
所以 不管是薄煎饼里的枫糖浆 还是
So, whether it’s maple syrup for your pancakes, or
甜饼干里的糖 甚至是
sugar for your sugar cookies, or
一颗甜而多汁的草莓
ever a sweet, juicy strawberry,
你吃的这些糖都来自于植物
the sugar that you eat comes from plants!
另外 你知道大多数植物最甜的部位是哪里吗
And you know what the sweetest part of many plants is?
果实!
Fruit!
大多数植物将大量的糖储存在它们的果实中
Lots of plants store a whole bunch of sugar in their fruits,
而且 不像那些粘乎乎的甜点
but, unlike those sticky desserts,
水果中也含有许多其他
fruit also carries a lot of other goodthings
我们保持身体健康所需的物质
that your body needs to stay healthy.
谢谢加入我们SciShow Kids!
Thanks for joining us at SciShow Kids!
如果有什么 有关于你喜爱的食物的问题
Do you have a question about a food you like?
或者其他的 那么就寻求大人的
Or anything else? Then get some help
帮助并给我们留言 或者
from a grown up and leave us a comment, or
发送邮件到kids@SciShow.com
send us an email at kids@SciShow.com!
我们下期见
We’ll see you next time!

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