Lotus can not eat black? Edible Lotus Notes

The nutritional value of lotus root is very high, and it is also the food that everyone likes to eat. However, there are certain techniques for cooking lotus root. Sometimes it is often darkened after cooking. Then, can the lotus root become black and eaten? Will the black lotus be poisonous?

Why did you turn black?

There are many explanations on the Internet that seem to be the most "scientific", such as "the lotus root will become black after heating, because the lotus root is rich in iron, and when heated, it will oxidize and the color will turn deep." If this is stated, When heated, it oxidizes, so cooking the lotus root in a casserole should also turn black, but this is not the case. Moreover, the lotus root's iron content is far from the high fungus, but not the pig's liver high, but never heard that these things into the iron pan can dye the black soup.

莲藕

Prevent lotus root from turning black

In fact, it is not difficult to keep lotus roots white. Boiled in 100 °C boiling water for 70 seconds can make all the polyphenol oxidase lost, also called the stop polyphenols to the quinone transformation process. However, this method may only be suitable for dishes such as ribs, stewed lotus root, which require soft chewy texture. If you use this method to make cold buns, black is not dark, but it also loses its crisp taste.

Do not worry, in addition to high temperature treatment, appropriate addition of acidic substances can also bind the hands and feet of polyphenol oxidase. In the production of cold selenium tablets, vinegar is immediately added to the hot selenium tablets, which can largely avoid the catalysis of polyphenol oxidase and maintain the white lotus color. In fact, some instant-packaged selenium tablets have added substances such as citric acid that inhibit polyphenol oxidase activity.

Those fresh hawks who bought it could not finish eating in a short time. How can they remain clean? This is not difficult, although polyphenol oxidase has a strong catalytic effect, but the need for oxygen participation, phenolic compounds in lotus root can be oxidized into helium, so the isolation of oxygen is also a method. Soaking lotus root in water can delay the blackening of lotus root.

Black can not eat in the end?

From the point of why 藕 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 变 。 。 。 。 。 。 。 。 。 。 。 。.

Edible Lotus Notes

1, spleen deficiency stomach, easy to diarrhea who are advised not to eat oysters, raw oysters cool, raw salad is more difficult to digest, impede the spleen and stomach, it is appropriate to eat cooked wolfberry.

2, black, odorless crickets are not suitable for human consumption. Should be selected to be tan brown, meat hypertrophy and white, pay attention to non-injury rust-free spots, continuous section without drying shrinkage without discoloration.

3, lotus root is best not to eat raw. Some mistletoe with ginger bugs can easily cause ginger worm disease. People eat oysters with cysticercus, capsules will develop into adults in the small intestine, adults attached to the intestinal mucosa, can cause intestinal injury and ulcers, make people abdominal pain, diarrhea, indigestion, children will also appear facial edema , stunting, mental decline and other symptoms.

4. Avoid using iron utensils when boiled, so as not to blacken it during cooking.

5, cut scorpion should not be stored directly. Uncut lotus roots can be left at room temperature for a week, but because the lotus roots are easy to darken, the cut-off parts are perishable. Therefore, the cut lotus roots should be covered with plastic wrap at the incisions and be kept fresh for about a week.

Foods with lotus root

1. Soybeans and lotus root should not be eaten together: Because soybeans are rich in iron, they cannot be eaten together with lotus roots containing more cellulose, because cellulose can affect the body's absorption of iron.

2, liver and lotus root should not be the same to eat: lotus root contains cellulose, fiber aldonic acid and pig liver iron, copper, zinc and other trace elements to form a mixture to reduce the body's absorption of these elements.

Ancient Chinese medicine reminds: As the lotus root is cool, so maternal should not be eaten prematurely, postpartum 1 to 2 weeks after eating can eliminate silt.


How to pick a good lotus?

Choose a yellow-brown cricket skin, thick and white meat, do not choose to have a black odor of lotus root odor. To buy a home-made lotus root can not be eaten in a short time, you can soak the lotus root in water, to avoid the combination of phenol oxidase and oxygen into thorium oxide, so that the lotus root black, metamorphic ugly.

The last thing to remember is that lotus root should not be cooked in an iron pan, and it is easy to turn black. It is best to add water while frying while keeping lotus white and pleasing.

Benefits of eating lotus root



For tuber vegetables, lotus root has a high iron content and is particularly suitable for patients with iron deficiency anemia. Lotus root is also suitable for liver disease, constipation, and diabetes patients because of its low sugar content, high content of cellulose and vitamins.

Lotus root tastes sweet, non-toxic, into the heart, spleen, stomach. Raw oysters can eliminate cooling and cooling, quench thirst and heat.

Cockroaches can also benefit from blood and appetizers, eliminate fatigue, relieve diarrhea, mucus protein and dietary fiber contained in gills can be combined with bile salts, cholesterol and triglycerides in the body to exclude them from the faeces, thereby introducing lipids. Absorption. The lotus root contains a certain amount of spleen and diarrhea, which can promote digestion and help restore health.

Vitamin C, which is contained in lotus root, is one of the effective nutrients for anti-aging and can help Improve Immunity, delay aging, and prevent cancer.

In addition, lotus root has the effect of removing silt milk, maternal eat lotus root, help to clear the intra-abdominal congestion, promote milk secretion.


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