1. Excellent fresh purple cabbage leaf bulbs are relatively dry, tender and shiny, the bulbs are even and firm, do not bolt, do not break, have no mechanical damage, the spherical surface is relatively clean, and there are no dead leaves. , free from diseases and insect pests, and can have 3 to 4 outer green leaves.

2. The inferior purple cabbage bulbs are not firm, not fresh, or the center is wilted, and the outer leaves turn yellow or have a small number of insect bites on the leaves.

3. Inferior purple cabbage has cracked or bolting leaf balls, mechanical damage or rotten outer leaves, severe pests and diseases, and insect droppings.

1. What are the nutritional values ??of purple cabbage:

Purple cabbage is rich in nutrients, especially rich in vitamins C, V and more vitamins E and B complex. In addition, every 100 grams of edible portion contains 1.4 grams of protein, 0.1 grams of fat, 3.3 grams of sugar, 57 mg of calcium, 42 mg of phosphorus, and 0.7 mg of iron.

2. Benefits of eating purple cabbage

1. Sterilization and anti-inflammation

Purple cabbage has sterilization and anti-inflammatory effects, such as: sore throat, traumatic swelling and pain, mosquito bites, etc. Insect bites, stomachache, toothache, etc. As a new and nutritious vegetable, purple cabbage has penetrated into the hearts of Chinese consumers and is favored by the common people.

2. Anti-aging and antioxidant effects

The anti-aging and antioxidant effects of purple cabbage are at the same high level as asparagus and cauliflower. It can improve human immunity, prevent colds, and protect the life indicators of cancer patients.

3. Reduce joint pain

Be like medicine, cabbage vegetables can reduce the symptoms of joint pain, and can also prevent and treat throat pain caused by colds. Therefore, it is best for patients with arthritis to eat these vegetables regularly. In order to prevent throat inflammation caused by colds, they should also eat cabbage regularly during the high incidence of colds in winter and spring.

4. Treatment of ulcers

Purple cabbage contains a certain "ulcer healing factor", which has a good therapeutic effect on ulcers and can accelerate wound healing. It is an effective food for patients with gastric ulcers. .