家庭小实验揭示炒青菜褪绿之谜

Uncover the Mystery of Green Fading While Cooking Vegetables in Home Lab

从科学的角度解释了炒青菜时经常会出现的青菜变色现象。为什么大多数蔬菜是绿色的?在加热过程中青菜经历了哪些生理和化学变化?生活中常用哪些方式保持炒青菜时不变色?本文讨论了这些问题及其背后的科学道理,同时设计了可在家中完成的实验进行科学验证,结果表明在焯水的过程中加入适量的盐和油,炒时不盖锅盖能很好地保持青菜原本的颜色。

The phenomenon of green fading while cooking vegetables is explained scientifically in this paper.Why most vegetables are green?What kind of physiological and chemical changes occurs to the vegetables during heating?How to prevent the green fading while cooking vegetables in daily life?All these questions are discussed in detail.A series of scientific experiments in home lab are also designed to keep green while cooking vegetables.The results indicate that vegetables might keep green via pretreatment with proper amount of salt or oil in the boiling water,or cooking without the lid covering the pot.