英语听力文摘716 吃蔬菜的正确时间
教程:英语听力文摘  浏览:619  
  • 00:00/00:00
  • 提示:点击文章中的单词,就可以看到词义解释
    Timing Your Vegetables Right

    Veggie Insect Repellent

    When a vegetable is growing, it protects itself from insects by producing chemical nutrients that make it taste bad or seem repellant to predators. Some of these nutrients—in particular phytochemicals—have been shown to fight cancer in people. What’s more, many vegetables are able to anticipate when insects will attack, and will ramp up its defenses accordingly.

    Light Exposure

    Even after vegetables are harvested and they’re no longer fighting insects, these garden wonders can still be made to produce more nutrients at certain times. This is done by varying a vegetable’s light exposure to simulate the experience of night turning into day. Studies have shown that vegetables stored this way produce more phytochemicals during the light cycle.

    So eating vegetables during this golden period means you’re getting more nutritional value!

    It’s not yet clear how people might be able to activate these nutrition-packed properties at home. Perhaps simply storing veggies in the dark and then subjecting them to a flash of light is enough to trigger the process. Or it could be more complex. In any case, more research could help us find ways to maximize vegetables’ nutritional benefits.

    0/0
      上一篇:英语听力文摘715 如何构建更强的大脑? 下一篇:英语听力文摘717 杂草为何容易重生?

      本周热门

      受欢迎的教程