University Chemistry ›› 2020, Vol. 35 ›› Issue (11): 195-201.doi: 10.3866/PKU.DXHX202007006

Special Issue: 化学科普(2020)

• Science Education • Previous Articles     Next Articles

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

Yaru Jiang, Liang Zhao, Weiguang Zhao(), Ying Guan()   

  • Received:2020-07-02 Accepted:2020-07-20 Published:2020-08-12
  • Contact: Weiguang Zhao,Ying Guan E-mail:zwg@nankai.edu.cn;yingguan@nankai.edu.cn

Abstract:

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.

Key words: Home laboratory, Green vegetables, Chlorophyll

MSC2000: 

  • G64