What is the difference between potatoes and yams? Difference Between Potato and Yam

Potatoes belong to the Solanaceae family and are perennial herbaceous tuber vegetables. It is native to the alpine regions of South America and was introduced to our country in the eighteenth century, and is cultivated everywhere, all year round.

Potatoes are oval-shaped, have bud eyes, red, yellow, white or purple skin, white or yellow flesh, have more starch content, and have a crisp or powdery taste.

Potato is a vegetable that can be used as a grain and vegetable, and its scientific name is potato, which is known as the world's five major crops along with rice, wheat, corn, and sorghum. In France, potatoes are known as the "apples of the earth". Potatoes are full of nutrients and easy for the human body to digest and absorb, and enjoy the title of "second bread" in Europe and the United States.

The quality of potatoes is required to be large, shaped, neat and uniform; The skin surface is smooth but not too thick, and the bud eyes are shallow and easy to peel; The meat is fine and the taste is pure; When fried, it is crispy, and the fried strips are not broken.

Yam is a dried tuber of the perennial creeping herbaceous plant of the dioscaceae family.

The grower is called the domestic yam, and the wild one is called the wild yam; Chinese medicinal materials are called Huai Mountain, Huai Yam, Huai Yam and so on.

Because of its rich nutrition, it has been regarded as a good and inexpensive supplement since ancient times, which can be used as a staple food, a vegetable, and a snack such as sugar gourd.

China is mainly produced in Henan Province, Boai, Qinyang, Wuzhi, Wenxian and other places, Hebei, Shanxi, Shandong, central south, southwest and other regions are also cultivated. In winter, after the stems and leaves wither, they are dug up, the roots are cut off, washed and dried.

There are two main types of yams cultivated in China: common yam and field potato. The tubers of ordinary yams are smaller, among which the "foot plate potato" in Sichuan and other places, the Huai yam in Huai County, Shanxi, and the Huai yam in the south of Jianghan are the most famous.

Potatoes and yams are two completely different ingredients, they differ in appearance, cooking taste and nutritional value.

Potatoes contain a relatively high starch content, and the content of various vitamins and trace elements is also relatively rich, which can effectively promote the digestion and absorption of the stomach and intestines.

Yam is a relatively nourishing ingredient, it not only contains a variety of nutrients, but also can nourish the spleen and stomach, and achieve the effect of enhancing physical fitness.

First, the shape is different.

1. Yam: Dried rhizomes of yam, a plant of the dioscaceae family.

2. Potatoes and potatoes: the primary leaves are single leaves, with a whole margin. As the plant grows, pinnate compound leaves are gradually formed. Perennial herb, but cultivated annually or twice a year.

Underground tubers are round, oval, oval, etc., with bud eyes, and red, yellow, white, or purple skin. The above-ground stems are prismatic and hairy. Odd pinnate compound leaves. The inflorescences are apical, and the flowers are white, red or purple. The berries are spherical, green or purplish-brown. The seeds are kidney-shaped, yellow.

Second, the origin is different.

1. Yam: The main producing areas of yam are Bo'ai, Wuzhi, Wenxian and other places in Henan, Shanxi, Shaanxi, Shandong, Hebei, Zhejiang, Hunan, Sichuan, Yunnan, Guizhou, Guangxi and other places. Guangxi, Hebei, Henan and other places constitute the main yam cultivation areas in China.

2. Potatoes and potatoes: Potatoes are native to the Andes and the coastal mountains of Chile, and are used as the main food by local Indians. It was introduced to Europe by Spanish sailors in 1536, to England and Ireland in 1565, and to France in 1785 by the pharmacist Farmonche.

The potato was introduced to India around the 17th century and a little earlier to China. From the foregoing, it can be determined that the introduction of potatoes to Middle-earth was no later than in Europe. Japanese potatoes were brought to the port of Nagasaki by the Dutch in 1598, and Chinese potatoes were introduced no later than those in Japan and even in some European countries.

Third, the nutritional content is different.

1. Yam: Each 100g of yam contains about 75g of water, carbohydrates, proteins, fats, diosgenins, 50ug and B vitamins, vitamin C, vitamin E, and carbohydrates are mainly starch. The viscous substance in yam is mucin, which is formed by combining mannan with globulin.

2. Potatoes and potatoes: Potatoes contain a lot of starch and protein, B vitamins, vitamin C, etc., which can promote the digestive function of the spleen and stomach.

Yam is yam and potato is potato, two kinds of things.

Potatoes and yams are not the same thing; In a dish that has already been fried, it is distinguished: potatoes are yellow, yams are white with mucilage; Crispy on the palate; What is the difference between potatoes and yams: Distinguish them from the appearance of color:

The surface color of the potato is earthy yellow, the skin is smooth, and the shape is basically round or oval, and the round shape is not uniform; The epidermis of yam is granular, rough to the touch, and long in shape; Distinguish from the nutritional content: the ingredients contained in fresh potatoes in general: starch 9 20%, protein, fat, crude fiber.

Nutrients contained in 100g of potatoes: calories 66 113j, calcium 11 60mg, phosphorus 15 68mg, iron, thiamine, riboflavin, niacin.

Potatoes have anti-aging properties. It is rich in B vitamins such as vitamins B1, B2, B6 and pantothenic acid, as well as a large amount of high-quality fiber, as well as trace elements, amino acids, proteins, fats and high-quality starch and other nutrients.

Potatoes are rich in dietary fiber, and it is reported that there are as many amounts as apples. Therefore, the absorption of potatoes by the stomach and intestines is slower, and after eating potatoes, they stay in the intestines for a longer time than rice, so they are more satiety, and at the same time, they can also help take away some oil and garbage, which has a certain laxative and detoxification effect. Potatoes are carbohydrates, but their content is only about 1 4 of the same weight of rice.

Studies have shown that the starch in potatoes is a resistant starch that has the effect of shrinking fat cells. At the same time, potatoes are almost fat-free, and the fat content of 100g potatoes is only. Potatoes are a very good high-potassium and low-sodium food, which is very suitable for edematous obese people, and its rich potassium content is almost the highest among vegetables, so it also has the effect of slimming legs.

Nutrients of yam: common aliases: Huai yam, Huai yam, sweet potato, yam,

Yuyan. Sexual taste is attributed to the meridians: flat and sweet. Return to the lungs, spleen, and kidney meridians. Nutrients: Contains a variety of amino acids, glycoproteins, and mucus.

quality, carotene, vitamin heart, vitamin B

2. Starch. enzymes, etc. Therapeutic effect: Yam is rich in nutrition, has the effect of nourishing the lungs and moistening the lungs and dissolving phlegm, and can be used as a good vegetable for bronchiectasis people to eat and simmer.

The soup is suitable for cooking. Applicable amount: about 200 grams each time. Yam is a perennial herbaceous plant with vine-growing, often purple, cylindrical roots, opposite, ovate or oval.

shaped, the flowers are milky white, dioecious.

The differences between the two are as follows:1. According to the data of the agricultural planting network, the nutrients are different: yam contains starch, protein, vitamins B1, B2, C, calcium, iron and other minerals, as well as viscous polysaccharides and starch decomposition enzymes and other nutrients; Potatoes are rich in carbohydrates, protein, potassium, vitamins B6, C, fiber and other nutrients.

2. Different uses: the viscous polysaccharides and starch decomposition enzymes of yam can protect the digestive system, enhance human immunity, and have the effects of nourishing yin and nourishing the kidneys, moistening the lungs and relieving cough, regulating blood sugar, and preventing cancer; Potatoes are a common staple ingredient that can be coarsely made into mashed potatoes, chips, hash browns, baked potatoes and other delicacies.

3. Different morphologies: yams are oblong or oval, and the epidermis is dark yellow or light brown; Potatoes are nearly spherical in shape, usually earthy yellow or light brown.