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Why does purple cabbage water turn pink when it meets lemon?

Put a purple kale, shredded, kale strands into a container with hot water and stir with chopsticks for a while. The color of the hot water is blue at this point. Take 6 clear glasses with quantitative solutions of sugar water, lemonade, soda, lye, sparkling water, and plain water. Strain the hot water that just contained purple kale, throw away the kale, leaving only blue water, and pour this blue water into each of the 6 different solutions, which can take on different colors, such as greenish-purple, rosy-red, lime green, green, pink, and blue.

Seeing the fruit scared me. "It's amazing. What happened? It's obviously the same vegetable? Why does it change color when you go in backwards? And so beautiful!" The important property of anthocyanins is that they are easily soluble in water, especially hot water. What's more, the colors appear differently in acid and alkaline environments. Anthocyanins will be plum red when encountering a solution with PH=2, which is a strong acid, and pink when PH=5, if it is a partial acid solution. As you can see, anthocyanins gradually change from red to pink and lighten in color as the PH goes from acidic to neutral. When anthocyanin reaches PH=7 neutral, the color will change to its original color of greenish-purple. pH=9 is alkaline and the color is blue. When the PH value becomes large, the color will change to green.

In our amazing experiment, 6 different solutions, which had different PH values, lemonade, Sprite acidic solution, so when the purple cabbage juice was poured into both solutions, it was set to red, but with a slightly different degree of redness. The color of the white radish made with purple cabbage water soaked on lemon is fresh and sweet. How can you turn white radishes into such a girly pink color if you add the freshness of lemon to the traditional kimchi. Among the mysteries that lemon brings. Lemon does not only play a purely decorative role on the table, but the best explanation is that the people of Anyue use their innovation and wisdom to fully integrate lemon into the food of the Anyue Lemon Feast.

Because the anthocyanin of purple kale is alkaline in itself, which is blue in itself, lemon contains acidic substances, acidic substances and alkaline substances interact with each other, and the blue color in itself becomes red. Cabbage turns pink is definitely cabbage spoiled. It is also possible for cabbage to stick to other things. It is recommended to never eat it. Cabbage generally cannot turn pink and should never be eaten. Watch food videos, people who do pink radish, purple kale juice, add a little white vinegar, immediately turn from purple to pink, add radish, refrigerate for 24 hours and add pink radish slices can be eaten.