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为什么我们喜爱甜食

Why We Love Sugar

我手上拿的是我们宇宙中 最棒
I’m holding in my hands one of the most magnificent
最强大 最不可思议的化学物质
powerful marvelous chemicals in our the universe.
我想知道你是否同意我尝一些
I’m wondering if you would be okay with me if I just add some.
嗯……
mmm
吃起来不错
This taste so good.
这就是普通的食糖
This my friends’ is your run-of-the-mill table sugar.
它可能是从甜菜或者甘蔗里提取出来的
It’s made our there from sugar beets or from a sugar cane.
我们根本区分不出来是哪种
There’s no way to tell which.
但是今后我们打算给它起个恰当的名字蔗糖
But henceforth we’re going to be calling it by its proper name which is sucrose.
食糖种类繁多
There’s a bunch of different kinds of sugar.
但它们尝起来都很甜 而且都可食用
But they’re all sweet tasting edible carbohydrates.
糖类可能是英语里最有吸引力的单词
Carbohydrates probably the tastiest word in the English language
除了可以填满你零食空缺 还可以让孩子们获得全部的满足
and aside from filling up your snack hole and making your kids get all spazzy.
糖是世界上最重要的化学品之一
Sugar is one of the most important chemicals on planet.
它们是地球一切生命的基础能量来源
They’re pretty much the primary source of energy for everything on earth
准确来说 其实并不是这种物质
not this stuff exactly.
这种物质是地球上一切更基础的资源
This stuff is more the primary source of all cavities on earth.
每一个地球上的生命 其细胞层次都极其多
At the cellular level pretty much every living thing on earth
无论是植物 动物或细菌 他们都需要储存能量
when it needs an energy fix whether it’s a plant and animal or a bacterium.
第一件事我们要确认的就是
The first thing they turn to
这些糖是从哪来的
sure now where does sugar come from
或至少是什么能量创造了糖
or at least what is the energy used to create sugar come from that.
当然是我们的朋友“太阳”
Of course is our friend the Sun.
每一株植物中 我们都可以发现这种甜的合成物
These lovely sweet compounds are found in every single plant
所以它变化的种类才会如此之多
that would vastly vary quantities of course
因为它是合成品的基本原料
because it is the primary product to for the synthesis.
在这个频道上 我会给大家讲述全部的生物光合作用
I’ll be talking all about photosynthesis on the biology crash course channel
我们会做成视频 发到网上
and when we do that episode and posted online.
如果想要更多的了解光合作用
You will see a link down description
你可以看到屏幕下方有一个链接
if you want to learn more about photosynthesis.
但是现在 让我们谈谈植物将二氧化碳 水
But for now let’s just say that the importance of plants turning carbon dioxide and
和阳光 转变成糖 是多么重要 而且这并不是夸大其词
water and sunlight into sugar cannot be overstated.
一般来讲 植物利用太阳中获取的能量 将水中的分子分离
Basically plants use energy from the Sun to split molecules of water and
从水中释放出的氢与二氧化碳结合 创造了葡萄糖
and the hydrogen from that water is combined with the carbon dioxide to create glucose.
所以事实上 整个过程都要从太阳那获取能量
So in a fact this whole process captures the energy of the Sun
然后把它作为化学能量储存在糖中
and stores it as chemical energy in sugar.
我正在吃“太阳”
I’m eating the Sun.
现在我正在品尝“太阳” 此刻它在我舌头上了
I’m eating the Sun right now. It’s under my tongue.
阿波罗拥有许多糖
Apollo owes a lot of sugar.
我担心 我可能要胃疼了
I’m worried I’m going to have a stomachache.
除了葡萄糖 另一种常见的果糖
In addition to glucose another common plant sugars fructose
也有同样的化学配比
which has the same chemical formulas just
只是构成分子重新排列了一点
rearranged a little bit.
即使它们很相似 包含
And even though they’re very similar and contain the
同样等量的能量
the same amount of energy,
果糖实际上 尝起来要更甜
fructose actually tastes significantly sweeter
这也就是为什么我们喜欢把高糖分的果葡糖浆放到饮料当中
which is why we like to put high fructose corn syrup into beverages.
也就是为什么我们会从极甜的土豆中尝到各种味道
That’s why we get a wide range of tastiness in plants from
然后渐渐没味
super sweet potatoes to not sweet doll potatoes
那就是我们通常所说的淀粉也是复杂的碳水化合物
which is what we generally call starch for the complex carbohydrate.
事实上几个糖分子是要结合在一起的
Actually bunch of sugar molecules are linked together.
所有可以得到糖的方式
All the way to the sugar
获取甘蔗也就是我们的老朋友蔗糖的办法
and sugar cane which is our old friend sucrose
就是把无序的葡萄糖分子与果糖结合到一起
which is actually just mark your glucose anarchy or fructose linked together.
要点在于所有这些糖都很重要
Point is that all these sugars are important.
我们认为它们美味的原因在于
The reason why we think they’re so delicious is
我们需要能量来维持生命
because we need energy to survive
而糖就是我们获得能量很好的来源
and sugar is a really great place to get energy from.
如果看起来 我在这个视频中已经吃了好多糖了
If it seems to you like I’ve been eating a lot of sugar in this video.
请记住 到目前为止 我可能也就吃了2或3匙的糖吧
Keep in mind that I’ve maybe had about two to three teaspoons so far.
美国人平均一天要吃22匙
The average American has about 22 per day
所以我还差得远呢
so I got a long way to go.
一天22匙
22 teaspoons a day people
那样人可能就不健康了
that cannot be healthy.
我做过一个调查
I did a little bit of research
我发现 从昨晚喝掉的苏打水来看
and I discovered last night that just from drinking soda
美国人平均一年要吃50磅的糖
the average American drinks about 50 pounds of sugar a year.
通常 美国人的摄糖量巨高 远超过我们正常所需
We Americans generally have a heck of a lot more sugar than we need to have.
我们正常一天应该摄入6-9勺的糖
We should probably having more like 6 to 9 teaspoons a day.
因此 你可能要重新思考一下
So you might want to rethink that all
你现在紧缩的节食法
cap and crunch diet you’re currently on.
我们并不是生在一个可以无尽获取糖的世界中
We’re not really designed for a world where sugar is infinitely available.
从自然界其实很难得到真正甜的东西
It’s certainly pretty hard to come by something really sweet in nature and
纵使你找到一些 像一打儿苹果
even if you find something like a bunch of apples,
你很难一下连续吃许多苹果 除非你想生病
it’s hard to eat a lot of apples without making yourself pretty sick.
目前 我们可以生产这种美妙的
Nowadays we’ve gotten around that by producing this wonderful
白色粉末 以及高含量的果葡糖浆
white powder as well as the high fructose corn syrup
把它添加到任何东西里
that they put in absolutely everything these days.
所以你想要征询我的健康意见的话:
So if you want my health advice:
尝试按史前石器时代的祖先饮食方式进食
try and maybe eat the way that your caveman ancestors did.
水果和蔬菜可能也是复杂的碳水化合物
Fruits and vegetables maybe some complex carbohydrates here and there.
我建议你们都不要以这种方式摄入糖分
And I would suggest overall to not consume sugar in this manner.
感谢你们收看Scishow视频
Thank you for watching this episode of Scishow.
想要了解更多关于糖的信息 请登录我们的链接
If you want to learn more about sugar check the links in description.
你可以向我们提问
You can also ask us questions
我们很乐意解答 在YouTube评论区
which we will be happy to answer and suggest the topics
写上你对Scishow的建议
for Scishow in the YouTube comments.
也可以在脸书和推特上跟我们联系 拜拜
You can hook up with us on Facebook and Twitter as well goodbye.

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视频概述

糖分是我们维持生命的能源

听录译者

收集自网络

翻译译者

喋喋

审核员

译学馆审核员B

视频来源

https://www.youtube.com/watch?v=f5zdr0COebw

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