Most of my friends are impressed by the fact that the more fresh vegetables they have, the higher their nutrient content is. The longer they are placed, the lower their nutrient content is, and the more they lose water, such as our common spinach, celery, cucumber and other vegetables. But there are also such vegetables in nature. The more fresh they are, the more they can not be consumed directly. Otherwise, food poisoning may be caused by carelessness. Do you know these ingredients?
Fresh day lily
Day lily, also known as lily, lemon, lily, forget you grass. Because of its petal hypertrophy, golden color, rich flavor, the fragrance of the food, smooth, tender waxy, often with the fungus, are "on the table treasures." Day lily dietary fiber content is higher, can promote bowel movements, prevent constipation, for colon cancer have a good preventive effect. But fresh day lily looks particularly good and sad, but it needs to be cautious. This is because of the symptoms of gastrointestinal toxicity caused by the inclusion of colchicine, which is converted from colchicine to dioxane colchicine in the human body. Fresh lily should be above 60 ℃ high temperature treatment, or soaked in cold water, eat boiled water with boiling time slightly longer, so as not to poison. Prolonged drying can also destroy the colchicine contained in day lily.
Green beans
String beans in different geographical names are not the same, such as some places called black beans. Green beans are generally used as cooking food. However, most of the friends in the cooking time in order to lock the nutrients in the food and use emergency fire fast method, but this method is not suitable for green beans. Many times there is consumption of green beans poisoning, the reason is that beans contained in saponin will strongly stimulate the digestive tract, and beans contain hemagglutinin, with coagulation. In addition, green beans also contain nitrite and trypsin, can stimulate the body's stomach, food poisoning, gastroenteritis symptoms. The way to prevent green beans poisoning is very simple, as long as all the beans cooked simmer on it. The amount of each pot should not exceed half of the capacity of the pot, fried with oil, add the right amount of water, add the pot simmered for about 10 minutes, and constantly shovel green beans with a shovel to make it heated evenly.
persimmon
Persimmons are one of the most striking fruits of the fall, with strings of persimmons hanging on the branches, symbolizing good luck. However, fresh persimmons contain more tannic acid, eat very astringent. These tannic acid into the human body may cause persimmon stones, so when buying persimmons try to choose astringent persimmons, to avoid tannic acid on the body caused harm.
Fresh fungus
Pleurotus ostreatus contains fungus polysaccharide for our good health, generally we buy fungus is basically dried fungus, but in the fungus picking season fresh fungus is also on the market for sale, especially its price far Below the dried fungus, which is very popular with elderly friends. However, the fresh fungus contains a substance that is a kind of light-sensitive substance. After being eaten, it will be distributed to human epidermal cells with blood circulation, and solar dermatitis will be caused when irradiated by the sun. And this substance is not soluble in water, although fresh fungus after washing, water soaking will not reduce its toxicity, so can not eat fresh fungus.