1. Differences in shape:

Pakchoi is a cultivated plant of the genus Brassica (mustard), with edible stems and leaves. It is a one- or two-year herbaceous plant, 25-70cm tall. Often cultivated as an annual. The stem is erect, smooth, pinkish-frosted, and branched. The basal leaves are obovate, 20 to 30cm long, dark green, shiny, entire edge, blunt at the tip, narrow at the base into a wide stalk, fleshy, white or light green.

Shanghai Qing is a kind of Chinese cabbage with fewer leaves and more stems. The stems are as white as gourds and gourds. Each leaf is green, and each leaf has completed the photosynthesis of chlorophyll during the growth period. The leaves are oval, the petiole is thick, green, the plant shape is girdle, beautiful and neat, the fiber is thin, and the taste is sweet and good.

Pakchoi:

Shanghai Green:

2. Differences in nutritional value:

Pakchoi contains 63kj of energy per 100g. Moisture 94.5g, protein 1.5g, fat 0.3g, dietary fiber 1.1g, carbohydrate 1.6g, carotene 1680μg, retinol equivalent 280μg, thiamine 0.02mg, riboflavin 0.09mg, niacin 0.7mg,

Vitamin C 28mg, Vitamin E 0.7mg, potassium 178mg, sodium 73.5mg, calcium 90mg, magnesium 18mg, iron 1.3mg, manganese 0.16mg, zinc 0.35mg, copper 0.06mg, phosphorus 26mg, Selenium 1.06μg.

Every 100 grams of Shanghai green contains 1.3 grams of protein, 2.3 grams of carbohydrates, 0.6 grams of crude fiber, 1.49 mg of carotene, 10.03 mg of vitamin B, 20.08 mg of vitamin B, and 40 mg of vitamin C. , calcium 56 mg, phosphorus 32 mg, iron 1.2 mg.

3. Differences in efficacy:

The minerals calcium and phosphorus contained in pak choi can promote bone development, accelerate human metabolism, and enhance the body's hematopoietic function. It is also rich in vitamin B1, vitamin B6, pantothenic acid, etc., which can relieve mental stress. Eating more cabbage before exams can help keep your mind calm. Bok choy also contains anti-allergic vitamins, which can help reduce urticaria.

Shanghai Qing can maintain the elasticity of blood vessels and provide the minerals and vitamins needed by the human body. Vitamin B2 is particularly rich in it and has the effect of inhibiting ulcers. Regular consumption has a good effect on the maintenance of skin and eyes. Rich in fiber, it can effectively improve constipation.

Baidu Encyclopedia—Shanghai Qing

Baidu Encyclopedia—Xiaobaicai