Fortune Telling Collection - Ziwei fortune-telling - Excuse me: How do you keep the leaves fresh for a long time?
Excuse me: How do you keep the leaves fresh for a long time?
Spray some water on the leaves, wrap them with plastic wrap, and put them in a place with low temperature and humid air, which can usually last for about a week.
How can I keep the leaves from changing color?
Chlorophyll molecule contains a "head" of porphyrin ring and a "tail" of chlorophyllin. Magnesium atom is located in the center of porphyrin ring and tends to be positively charged, while the nitrogen atom associated with it tends to be negatively charged, so porphyrin is polar and hydrophilic and can combine with protein.
The magnesium atom in porphyrin ring can be replaced by H+, Cu2 ++ and Zn2+. When leaves are treated with acid, H+ easily enters chloroplasts and often replaces magnesium atoms to form pheophytin, which turns leaves brown. Pheophytin is easy to combine with copper ions to form copper chlorophyll, and its color is more stable than before. People often treat green plant specimens with copper acetate according to this principle.
After treatment, press it dry.
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