未登录,请登录后再发表信息
最新评论 (0)
播放视频

新鲜的VS冷冻的食物

Fresh vs Frozen Food

随着冰箱的出现,我们能够
With the advent of freezers, we’re able to
让食物储存的时间更长
keep our food lasting longer than ever before,
但是如果就营养而言,新鲜和冷冻的食物有区别吗?
But is there a difference between fresh and frozen produce in terms of nutrition?
你应该要吃哪一种呢?
Which should you be eating?
你可能会本能的说‘当然新鲜的食物更好’,因为它是新鲜的。
You instinct may be to shout out ‘Of course fresh food is better. It’s fresh.’
也许你是对的,但这很大程度上是取决于周围的环境。
And you may be right. But it’s highly dependent on the circumstances.
在很多情况下,你在杂货店架上拿到的食物
In many instances, the food you take off the shelf in a grocery store
是为避免在运输过程中产生损坏而在未完全成熟前就被采摘下来的。
has been harvasted under ripe to avoid damage during travel time.
这就意味着,它的营养价值还未达到最高点。
This means that it hasn’t yet reached its peak nutrition.
而且,从被采摘的那一刻开始,它的营养成分就开始流失了。
Furthermore, the minute it was picked, its nutritional content began to deteriorate.
然后食物被装上卡车、船或者飞机,在经过好几天的运输后,它被摆在货架上供你选择。
The food is then loaded on a truck, boat or plane, travels for days and waits on a shelf for you to choose it.
最后,在被吃掉以前,它很可能要在你的冰箱里再放上几天。
After, which it may sit in your fridge for a few more days before being eaten.
在这段潜伏期内,食物可能会损失高达百分之五十的营养价值。
Over this period of potentially weeks, the food may lose up to 50% of its nutritional value.
在另外一方面,冷冻食物是在完全成熟的时候被采摘并立刻冷藏起来的。
Frozen foods on the other hand are picked when they’re ripe and frozen immediately.
快速冷藏的过程并不影响食物维生素含量,
And while the quick freeze process does affect some vitamin content,
从本质上来说,它恰如其分地冷藏或者说锁住了食物的营养。
it essentially freezes, or locks most of the nutrients in place.
与放了几周的新鲜食物相比,
Next to the fresh produce that has been sitting around for weeks,
毫无疑问,冷藏食物里含有更多的营养,
there’s no doubt that frozen foods can contain more nutrition,
特别是在当地作物还没到成熟季节,需要在外地长途运输食物到当地的月份。
particularly during the month that local produce is not in season and travelling far distances.
一系列的研究表明,经过3天的储藏,冷冻西兰花的维生素C和β-胡萝卜素的含量上升。
In a series of studies, after 3 days of storage, frozen broccoli had higher levels of Vitamin C and Beta-Carotene.
冷冻蓝莓里含有更多的多酚类和花青素,
Frozen blueberries were much higher in polyphenols and anthocyanins,
而冷冻豆芽菜在所有的营养元素测试中都录得高分。
and frozen sprouts scored higher in all nutrient measurements.
当然,如果是你从花园里采摘或者当地农贸市场上买到的新鲜蔬菜,
Of course if you pick a fresh vegetable from your garden or get it from your local farmer’s market,
并且在当天食用,那么无论是味道还是营养方面,冷冻蔬菜都是没有任何可比性的。
and eat it that date nothing could be quite compared to both the nutrition and the taste.
除非你可以每隔几天购物一次,否则冷冻蔬菜确实是营养方面可比性较好的选择。
But unless you’re able to shop every few days, frozen produce could be a great nutritionally comparable alternative.
喜欢我们的白板手绘又想解放你的创意思维吗?
Like our whiteboard drawings and looking to free your creative side?
访问我们UpDesk的朋友们吧,我们正在使用的这些漂亮的可调节高度的白板书桌,
Check out our friends at UpDesk who have created these amazing height adjustable whiteboard desks,
正是他们创作的。
which we now proudly use.
在灵感来的时候简单地把它记下来,或者画在桌子上,
Jot down ideas when they hit you, or just doodle on your desk.
如果你已经观看过我们关于久坐的视频,就应该知道经常站立的重要性。
And if you watched our video on sitting down, you know how important it is to be standing more often.
这些东西真的非常棒,而且我们的观众将得到购买任何大小和型号的站桌都可以便宜50美元的优惠。
These things are seriously awesome and they’re offering our viewers $50 off any size and model UpDesk.
登录UpDesk.com网站进行查看,并可以使用推广码UPDESKSAP订阅更多每周科学视频。
Check them out at UpDesk.com and use the promo code UPDESKASAP and subscribe for more weekly science videos.

发表评论

译制信息
视频概述
听录译者

收集自网络

翻译译者

收集自网络

审核员

自动通过审核

视频来源

https://www.youtube.com/watch?v=zjsOOT347cA

相关推荐