The difference between sweet potato and purple potato The original name of sweet potato is sweet potato. The tuber of sweet potato is rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, and the sugar content is 1.5%-5%. Purple potato, also known as black potato, is purple to deep purple and is very popular in the international market at present. It is rich in protein, 18 kinds of amino acids easily digested and absorbed by human body, 8 kinds of vitamins such as vitamins A, B and C, phosphorus and iron, and 10 kinds of natural mineral elements. It is an essential element for human body to resist fatigue and replenish blood. Like sweet potato, purple potato is also rich in cellulose, which can promote detoxification, improve the digestive tract environment and prevent gastrointestinal diseases. There is not much difference between sweet potato and purple potato in protein and sugar, the only difference is his color. The purple color of purple potato is mainly due to the "anthocyanin" it contains.

Efficacy and function of purple sweet potato 1. be anticancer

Purple sweet potato is rich in selenium and iron, which is an essential element for anti-fatigue, anti-aging and blood-enriching. In particular, selenium is known as the "king of cancer", which is easily absorbed by human body and can remain in serum, repair myocardium, enhance immunity, eliminate free radicals in the body, inhibit DNA synthesis and the division and growth of cancer cells, and prevent the occurrence of cancer diseases such as gastric cancer and liver cancer.

2. Promote gastrointestinal peristalsis

Purple sweet potato is rich in cellulose, which can increase the volume of feces, promote gastrointestinal peristalsis, clean up mucus, gas accumulation and corruption in intestinal cavity, discharge toxic substances and carcinogens in feces, keep defecation unobstructed, improve digestive tract environment and prevent gastrointestinal diseases.

3. It is beneficial to lose weight.

Eating purple potato will not only make you fat, but also help you lose weight, keep fit, prevent sub-health, relieve constipation and detoxify. Every 100g of fresh purple sweet potato contains only 0.2g of fat, which generates 99 kilocalories of heat energy, which is about 1/3 of that of rice. It is a good food with low fat and low heat energy, and it can effectively prevent sugar from transforming into fat, which is conducive to weight loss and bodybuilding.

4. Enhance immunity

Purple sweet potato contains a lot of mucin, which can prevent the atrophy of liver and kidney connective tissue, improve immunity and prevent collagen disease. The minerals contained in purple sweet potato play a very important role in maintaining and regulating human functions. Calcium and magnesium contained in it can prevent osteoporosis.

Effect and function of sweet potato on kidney deficiency

Symptoms are "cold", backache, chills in limbs, chills, kidney-yang deficiency with edema. Symptoms are "fever", mainly symptoms of kidney yin deficiency such as backache, dryness and heat, night sweats, sweating, dizziness and tinnitus.

purify

Cellulose can promote the peristalsis of intestinal wall, help digestion and prevent dry stool.

nourishing the stomach

Warming stomach and treating stomach cold.

Nourishing yin and tonifying deficiency

Tonify deficiency, invigorate qi, moisten lung and tonify kidney, and be used for yin deficiency of lung and kidney. Suitable for people with chronic diseases, physical weakness or fatigue.

Sweet potato is not only a healthy food, but also a good medicine for treating diseases.

The Manual of Sweet Potato says that it has six medicinal values: treating dysentery and diarrhea; Treat wine accumulation and heat diarrhea; Treating damp-heat jaundice; Treating nocturnal emission with white turbidity; Treating blood deficiency and menstrual disorder; Treat infantile malnutrition.

"Luchuan Materia Medica" says that sweet potato can produce fluid to quench thirst and cure fever and thirst.

Purple and sweet potatoes are cooked separately. Purple potato milk cake

Materials:

Purple potato150g, fresh milk 360g, sugar 50g, gelatin powder12g.

Exercise:

1. Soak gelatin powder in a little water to soften it.

2. Peel and cut the purple potato, put it into a blender and stir, then add 200g fresh milk and stir (until it becomes purple potato pulp).

3. Pour the remaining 160g fresh milk into the pot, add sugar and stir the gelatine powder until it melts.

4. Add purple sweet potato paste to boil, and then continue to stir with low heat for five minutes. The process should be stirred constantly to avoid boiling.

5. Pour it into a container, let it cool, and put it in the refrigerator until it is solidified. Ice tastes better.

Sweet potato pie

Materials:

2 sweet potatoes, 2 eggs, some flour and sugar.

Exercise:

1. Wash the sweet potato, cut it in half or cut it into three pieces (cooked well), then steam it in a pressure cooker, which usually takes 10- 15 minutes.

2. Then take out the hot sweet potato skin and put it in a porcelain basin, mash it with a wooden shovel, add sugar and flour while stirring, and finally add eggs.

3. Stir well, knead into a ball, gently flatten it on the chopping block, and then use the shell of the big jelly that the baby usually eats as a mold to press them into a round or heart shape.

4. finally, put the cake on the oil pan rack (you don't need much oil, so you don't eat oil) and fry it on both sides.

skill

1. When peeling and mashing the sweet potato, it must be hot, so that the flour and sugar can be dissolved. 2. Don't put too much flour, it will be hard or not. 3. Sweet potato is sticky, it is better to use some starch, and flour is also ok. Golden yellow is attractive and easy to cook. Just fry it, preferably while it's hot, and it's delicious.