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每日视频新闻:冰冻蔬菜不如新鲜蔬菜有营养?

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冰冻蔬菜不如新鲜蔬菜有营养?

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Food Myths: Frozen veggies are less nutritious than fresh veggies.
食物谬论:冰冻蔬菜不如新鲜蔬菜有营养mxq(8FQEG1mPH

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Some say frozen veggies are less nutritious than fresh ones.So let’s take a walk through the wild and wonderful world of flash freezing.
有人说冰冻的蔬菜不如新鲜的蔬菜那么有营养Hm4pMu4[FPz!vLO.#%ga。所以,让我们探访一下狂野精彩的速冻世界7X~t;YXe0rp#Fq

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First of all, when vegetables are chosen for freezing, they’re picked at the peak of their ripeness, which is also the peak of their nutritional value.
首先,当选择蔬菜进行冰冻的时候,是在最为成熟的巅峰期采摘的,也就是营养价值的巅峰^+37s.oHj.hb3

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Before they’re frozen, they’re dunked in boiling water and quickly cooled to preserve their quality and to get rid of dirt and organisms.
冰冻之前,先用沸水浸泡,然后迅速冷却至储藏温度,消除污垢和微生物w14.C4=0d8sg0yR3Fd

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It’s a process called blanching.
该过程叫做热烫SYaS~qTk..2b@wTZS

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Enzymes found in veggies help them grow and ripen but after peak ripening, these enzymes will begin to break down the vegetables,and reduce their nutritional value.
蔬菜中发现的酶帮助它们生长和成熟sNJi6b0z%[~cB&。但是成熟的巅峰期过后,这些酶开始分解蔬菜,破坏其营养价值Fj8uCQw(p&%6

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Blanching deactivates this enzyme induced breakdown and only causes a slight loss of some water soluble vitamins.
热烫可以阻止酶造成的分解,只会造成少量水解维生素的流失Rdpc9qHvHcixv4k(S,

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When frozen, veggies will maintain their quality for a little over a year.
冰冻的时候,蔬菜会维持其质量超过一年的时间g4.]VY=45eEEctj

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So thanks to that enzymatic deactivation, your frozen veggies may be nutritionally better off than fresh ones that have been sitting on the shelf too long after peak ripeness.
由于酶失活作用,冰冻蔬菜在营养方面比那些摘下来之后长时间放在架子上的新鲜蔬菜还要好&a].alp7WAEUj

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So yeah, frozen is a go!
所以,放心选择冰冻蔬菜吧kojJJ02hAeQ

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Alright folks, you know the deal.
朋友们,现在你们知道是怎么回事了zNccjbcS(E

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重点单词   查看全部解释    
slight [slait]

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adj. 轻微的,微小的,纤细的,脆弱的
vt

 
ripen ['raipən]

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v. (使)成熟

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limited ['limitid]

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adj. 有限的,被限制的
动词limit的过

 
nutritious [nju:'triʃəs]

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adj. 有营养的,滋养的

 
impact ['impækt,im'pækt]

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n. 冲击(力), 冲突,影响(力)
vt.

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statement ['steitmənt]

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n. 声明,陈述

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potential [pə'tenʃəl]

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adj. 可能的,潜在的
n. 潜力,潜能

 
global ['gləubəl]

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adj. 全球性的,全世界的,球状的,全局的

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perspective [pə'spektiv]

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n. 远景,看法,透视
adj. 透视的

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enzyme ['enzaim]

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n. 酶

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