美食速递 ﹕ 怎样炒菜保持青绿?
Gourmet Express: How to keep vegetable green? Source: Supplied: Mrs Lee
怎样炒菜才使青菜保持青绿?一般来说,绿色蔬菜应该在低温环境保存,如果温度超过高,所含的「叶绿素酶」会将叶绿素与蛋白质分开而散失,但如果低于零度,叶绿素又会因冷冻而遭到破坏。
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Gourmet Express: How to keep vegetable green? Source: Supplied: Mrs Lee