Can you eat purple sweet potatoes Can you eat purple sweet potatoes

OK. At present, purple ketchup is produced in the United States, while the first in the Chinese market is Heinz purple ketchup. In fact, this tomato sauce is no different from the ordinary red one, except that edible coloring is added to it.

Blue ketchup, for example, may be called blueberry ketchup, but the real color is made only by adding coloring. This purple ketchup is specially produced for children to play with and stimulate their creativity while eating, and this ketchup even comes in a variety of colors such as green, orange, pink and dark blue. Therefore, as long as it is a purple ketchup produced by a regular manufacturer, it is completely edible, but edible coloring is added to it.

You only have to go to Heinz China's homepage and browse to find this colorful ketchup.

The scientific name of purple sweet potato is selenium-rich purple sweet potato "Yuzi 263", which is a new variety of sweet potato, with purple skin and purple meat, sweet and glutinous taste, which is more suitable for the taste of the general public, and the most important thing is that it is rich in a trace element selenium that is beneficial to the human body.

Because of the high anthocyanin content

Purple potatoes grow purple because of their high anthocyanin content. Anthocyanins have good antioxidant capacity, which is why purple potatoes are considered by some people to be anti-aging. In addition to anthocyanins, purple potatoes also contain protein, starch, pectin, amino acids, dietary fiber, trace elements, vitamins and other nutrients.

Purple potatoes are very low in calories, 100g of purple potatoes produce about 70 calories, in addition to low-fat, high nutrition, satiety and other characteristics, so it is popular with people and is an excellent delicacy for people. In addition to being regarded as food, purple potatoes also play a role in pharmaceutical, chemical, light industry, textile and other industries.

Anthocyanins are the main **

Anthocyanins are widely found in flowering plants (angiosperms), and their content in plants varies greatly with variety, season, climate, maturity, etc. According to preliminary statistics, anthocyanins are contained in 27 families and 73 genera of plants, such as purple sweet potato, grapes, blood orange, red cabbage, blueberry, eggplant, cherry, cranberry, strawberry, mulberry, hawthorn, morning glory and other plants.

The earliest and most abundant anthocyanins were grape skin red pigment extracted from red grape pomace, which was marketed in Italy in 1879 and can be extracted from grape pomace, a waste material from wineries. Elderberries contain a large amount of anthocyanins, and they are all cyanidins, with a fresh weight of 200 1000 mg per 100 grams.

In addition, anthocyanins are also widely found in food crops such as barley, sorghum, and legumes. The study found that extracts from grape seed and pine bark had the highest levels of anthocyanins.

The above content refers to Encyclopedia-Purple Potato.

Because of anthocyanins. The color of purple potatoes is related to some of the pigments it contains, and purple is the presence of anthocyanins in purple potatoes. It is a water-soluble dye widely found in plants in nature, belongs to flavonoid compounds, and is also the main coloring substance in plant petals.

The meeting was hot and hot.

The purple sweet potato is purple potato, so it is also called black potato, purple sweet potato or purple sweet potato. Purple sweet potato contains more than 10 kinds of mineral elements such as SE, ZN, FE, P, etc., contains 18 kinds of amino acids, and is rich in 8 kinds of vitamins such as vitamin C, B, and A, especially anthocyanins with a lot of medicinal value.

Purple sweet potato is a special variety type of sweet potato, which has the characteristics of grain, cash crops and medicinal crops, in addition to the composition and function of ordinary sweet potato, it also has a variety of physiological functions, and is an important raw material for food, medicine, chemical industry, light industry, textile and other industries.

Edible Generally, purple sweet potatoes are the most delicious among sweet potatoes (in my opinion).

Of course, that is the so-called dry noodle sweet potato.

Of course, you can eat it, and the nutrition is higher than that of ordinary sweet potatoes.

It's delicious and I like to steam it for breakfast.

Purple sweet potatoes are easy to cook and have a lighter taste.

Purple, dark vegetables are generally more nutritious, purple potatoes are also called black potatoes, and the flesh of the potatoes is purple to dark purple. In addition to the nutrients of ordinary sweet potatoes, they are also rich in selenium and anthocyanins. In recent years, purple potatoes have become very popular in the international and domestic markets, and the development prospects are very broad.

Now, every country has a purple sweet potato breed in breeding, and the purple sweet potato varieties currently cultivated in various parts of our country are: 1. Mountain and river purple. This variety was introduced from Japan and has a high pigment content, more than 2 times higher than the anthocyanin content of ordinary purple sweet potatoes, and can also be used to extract pigments in addition to eating.

The yield of 667 square meters is generally more than 1500 kg, the potato shape is slender, the uniformity is poor, and the main vine stem is 6 to 7 meters long. The young stems and leaves (tips) of the potato are used to cook dishes, and the taste is better than that of water spinach. Second, American black potato.

This breed was bred in the United States. The taste is delicate and sweet, and the aroma is rich. This potato has strong germination, many branches, stout, up to 1 meter, not vigorous and long, semi-erect.

Generally, 667 square meters of output of 3000 kilograms, its nutrients are rich, lysine and manganese, potassium, zinc and other trace elements, as well as iodine and selenium with anti-cancer effects are higher than the American black sweet potato, color, aroma, taste, shape are the most ideal health food at present. It can also be used to extract pigments. Three, German black potato.

Introduced into China in 2002, the vine, many branches, neat size of potato pieces, delicate flesh, sweet and delicious, strong disease resistance, from 667 square meters of output are mostly about 4,5000, single plant can reach more than 10 kilograms, the largest single potato weight kilograms. In addition to eating, it can also extract pigments, which is one of the best varieties of purple sweet potato.

Of course you can, and it's more nutritious.

What a delicious thing purple potatoes are...

A new variety of sweet potato, good stuff! However, don't eat and hold on to good things, it's uncomfortable to hold on.

Yes, I sometimes pick this color to buy, it's even more delicious!

It is normal for purple potatoes to turn blue and can be eaten. Because purple potatoes contain a large amount of "anthocyanins" that are beneficial to the human body, it will turn blue when it encounters alkalinity, and purple when it encounters acidity.

If the water you steam or boil the purple potato is alkaline, the purple potato will turn pale, or a little residual dish soap and other liquid after brushing the pot will also make the purple potato turn blue, in short, this phenomenon is a normal reaction. It is safe to consume.

Purple potato porridge turning blue is a very common phenomenon, many people will encounter this situation, it is mainly caused by anthocyanins, not harmful substances, or edible.

The way to prevent purple potato porridge from turning blue is: Purple potato porridge will turn blue-green because purple potatoes are rich in anthocyanins.

Anthocyanins, a natural pigment, are purple in a neutral environment, purple-red in an acidic environment, and blue in an alkaline environment.

All you need to do is add a little acidic liquid like white vinegar or lemon juice to turn purple again.

It can be eaten, purple potatoes turn blue when exposed to alkali, turn red when exposed to acid, and react with pigments.

The most important thing about purple sweet potato is that it is rich in selenium, a trace element that is beneficial to the human body. Potato leaves are as rich in nutrients as their roots: per 100 grams of sweet potato leaves contain grams of protein, grams of fat, grams of carbohydrates, milligrams of vitamins, milligrams of niacin.

Sweet potato leaves and roots contain a lot of liquid protein. Liquid protein is a mixture of polysaccharides and proteins, which can prevent fat deposition in the cardiovascular system, maintain the elasticity of arterial blood vessels, and help prevent coronary heart disease.

Liquid proteins also prevent the atrophy of connective tissue in the liver and kidneys, keeping the digestive tract, respiratory tract, and joint cavity lubricated. The rich fiber in sweet potato leaves can speed up the movement of food in the stomach and intestines, and has the effect of cleaning the intestines.

Purple heart sweet potato is a kind of sweet potato family, and the biggest difference between it and other sweet potatoes is that the heart is purple, and there is a special violet in it. It is not toxic to people and animals, and is usually common in Guangdong, making it a delicious food. Sweet potato Purple heart sweet potato is more beautiful, delicate meat, contains 9 kinds of amino acids and carotene, can supplement the nutritional deficiency of the human body, and the medicinal function is also better; It contains purple pigment, chlorogenic acid, a variety of vitamins, selenium, iodine, copper, iron, zinc and other mineral trace elements than ordinary sweet potatoes, some trace elements are even several times that of ordinary sweet potatoes; It is also the main raw material for food processing, and can be used to make various colored foods and various beverages.

However, the purple sweet potato has thin skin, easy to rub the skin of the potato, and is not cold-tolerant in winter. During the period from October 2005 to March 2006, the researchers went through the experiment of eating purple sweet potatoes in 36 families of 120 people, there are men, women and children in the family members, but purple sweet potatoes are suitable for all ages, the general family cooks porridge with purple sweet potatoes in the morning, steamed in the evening in cooking, eats one or two before meals, twice a day, and then only eats a small amount of staple food, after nearly 6 months of eating tests, it was found in the visit survey that most of the elderly in the family members had high blood pressure, after starting to eat purple sweet potatoes, blood pressure has been effectively controlled, 17 of them have blood pressure to the normal range, below 140 90mmHg, young people in the family, prefer health and beauty, insist on eating purple sweet potatoes, the body is healthy and relaxed, especially a few patients with chronic gastrointestinal problems, the second day after starting to eat purple sweet potatoes feel much better, the belly is very relaxed, there is no feeling of swelling before, the stool is very bad three times a day, it becomes once a day in the morning, the stool is also in strips, interesting is that there are two little boys in the survey, A 9-year-old, a 12-year-old, everyone calls them little chubby, after eating purple sweet potatoes for a few months, their posture has changed significantly, chubby dun is not fat, and the growth height is also ideal, this is mainly because purple sweet potatoes are rich in trace elements, especially the content of calcium to promote the growth of children's bones.

Purple sweet potato is rich in dietary fiber, starch, vitamins, trace elements (selenium, iron, calcium, potassium, etc.) and anthocyanins, glycoproteins, carotene, dehydroepiandrostakes (ster) ketones and other functional factors, and the nutritional value is very rich.