Can the skin of summer black grapes be eaten? Why do summer black grapes lose color?

Summer black grapes are a nutritious fruit. The reason why black grapes have a black appearance is that they are rich in pigments. Grapes contain anthocyanins, which are soluble in water. When washing or eating, anthocyanins in the epidermal cells overflow and cause discoloration. So sometimes we are very curious, is it because some pigment is added to cause discoloration? In fact, it is not. So can the skin of summer black grapes be eaten? Let's see what the Encyclopedia Knowledge Network says.

Contents of this article

1. Can the skin of summer black grapes be eaten?

2. How to eat summer black grapes

3. Why do summer black grapes lose color?

Can the skin of summer black grapes be eaten?

Grape skins are edible. They are rich in the following nutrients: resveratrol, which has the effects of lowering blood lipids, resisting thrombosis, preventing arteriosclerosis, and enhancing immunity; tannins, which have the effects of anti-allergy, delaying aging, enhancing immunity, and preventing cardiovascular and cerebrovascular diseases; anthocyanins, which have strong antioxidant, anti-mutation, reduce liver dysfunction, and protect cardiovascular functions. So it makes sense to eat grapes without spitting out the skins.

At the same time, since most grapes on the market currently have some pesticides and other chemical components on their skin, we would like to remind everyone to wash grapes thoroughly before eating them. It is best to rinse them with clean water and use detergents that can effectively remove chemical components for more than two minutes. However, it is not advisable to soak them in clean water, because soaking in water can easily cause the residual pesticides on the surface of the grapes to penetrate into the flesh.

How to eat summer black grapes

In addition to being eaten directly, summer black grapes can also be made into salads.

Black Grape Apple Pineapple Juice

Ingredients: 1 plate of grapes, 1 pineapple, 1 apple, seasoning, 1 spoon of honey

practice:

1. Cut off the black grapes first, do not remove the fruit stems, and rinse them with clean water.

2. Add 1 teaspoon of baking soda; add water to cover the black grapes, soak for 10 minutes; then rinse the grapes carefully with clean water.

3. After washing, remove the fruit stems and put some black beans into the blender.

4. Add some chopped pineapple and chopped apples.

5. Add 1 spoon of honey and a few drops of lemon; add water and stir well.

Why do summer black grapes lose color?

Grapes contain anthocyanins, which are soluble in water. When washing or eating, the anthocyanins in the epidermal cells overflow and cause discoloration. This is a normal phenomenon.

Most of the "discolored" grapes come from the anthocyanins in the grapes. When the grape skin is damaged, the anthocyanins inside the grapes flow out, giving people the illusion of being dyed. Grapes are very easy to fall off during the picking, packaging, and boxing process, and they are relatively easy to rot and deteriorate, so it is unlikely to dye grapes.