Healthy diet: Is there a pesticide on the dish? Three kinds of vegetables are not easy to be polluted
People are most worried about pesticide residues when they eat vegetables. In general, fragile vegetables that are easy to attract insects will have more pesticides applied; while some dishes or themselves are “strong in body” or have a good growth environment, they do not require too much protection of pesticides and can grow healthily. So, which dishes can “get out of the mud and not stain”?
The first category: pest-resistant
They are vegetables that are not susceptible to insect pests. They are highly resistant and therefore have less pesticides, such as cabbage, leeks, celery, cauliflower, peppers, and radishes.
The second category: long soil
The second type of vegetables that are not easily contaminated are vegetables that are partially grown in the soil, such as alfalfa, potatoes, taro, kohlrabi, and sweet potatoes.
The third category: wild
It is an edible fungus and wild vegetables that grow in the wild. They grow in the seasons in nature, without the need for artificial care, and the safety factor for eating is naturally higher.
The most common wild vegetables in the market are: bracken, leeks, malan, purslane, and asparagus.
Vegetables most susceptible to pesticide contamination
Most leafy vegetables use pesticides more often, such as cabbage, canola, and chicken. When eating these vegetables, the washing should be extraordinarily careful.
Many people think that vegetables with insect eyes use less pesticides and are safer. I don't know, with the promotion and use of pesticides, the resistance of pests is also increasing.
Moreover, some pesticides can't stop the survival of worms, but they are harmful to humans. Therefore, vegetables that eat insects cannot be taken lightly.
In addition, the pesticide residues of green leafy vegetables are also seasonal, and generally the green vegetables in summer are more pesticides.
Liu Zhenfang, a professor at the Department of Health Nutrition at Taipei Medical University, pointed out that vegetables and vegetables are the most pesticide residues. For example, the cabbage roots near the roots of the Chinese cabbage and the concave parts of the bell peppers are more than the other parts, and it is best to throw them away when eating.
Why do pesticide residues on vegetables accumulate in these areas? Researchers at the National Vegetable Engineering Technology Research Center pointed out that this is related to the growth pattern of vegetables and the method of spraying.
Taking Chinese cabbage as an example, first of all, due to the action of gravity during the spraying, the pesticide will flow down the leaves and vegetable stalks and gather under the dish. Therefore, there will be more pesticides on the dish.
Secondly, because the vegetable gang is close to the ground, the probability of reducing or decomposing pesticides caused by day and night wind and sun is relatively small, so the pesticide residue on the vegetable gang is more stubborn. However, such as artemisia stalks, rapeseed meal and other vegetables without obvious food, there is no such problem.
The green pepper, although hanging, still follows this rule. Experts explained that because the green pepper plants are relatively short, the pesticides are often top-down when spraying pesticides, and many pesticides will accumulate in the pedicles of green peppers. Therefore, vegetables such as green peppers have such troubles, and other cowpeas and cucumbers do not have such concerns.
Therefore, when we eat vegetables, it is best to cut off the dishes near the ground. For vegetables such as green peppers, you should take them off and eat them.
How do you eat vegetables and fruits?
Fruits and vegetables bought home, don't worry about eating
Many consumers will be surprised to see this article - it is a fresh thing to eat vegetables, and it may not be so delicious after a few days. However, in order to maintain the "safe interval" principle, consumers may wish to keep their minds and make more "safe period" for the vegetables they buy.
Experts remind that in the autumn and winter season when the temperature is low and the vegetables are not easy to rot, consumers can put them in the natural circulation air for a few days after buying vegetables and fruits, especially green vegetables such as cabbage, Chinese cabbage and leeks. It can accelerate the natural decomposition of residual pesticides, especially in the cold winter, many vegetables will not spoil on the outside for a few days, you can use this method. In the hot season, if you are worried about decay, you can put it in a large refrigerator for a few days. As long as the internal air circulation is maintained, it can also help the residual pesticides to volatilize.
Don't be superstitious about "worm-eye" vegetables
In order to eat vegetables without pesticide residues, many consumers like to buy green leafy vegetables and cowpeas with insect eyes, and think that such vegetables must not be pesticides.
He Jiguo suggested not to be keen on buying vegetables and fruits with insect eyes. Whether or not insect eyes are not a measure of whether or not pesticides are used. Because consumers bought vegetables and fruits with insect eyes, basically no insects were found in the vegetables, and the farmers did not artificially catch insects. Therefore, they were generally removed by pesticides after the occurrence of pests.
He pointed out that the fruits and vegetables of the insects are killed by pesticides, while the insects are killed by larvae or eggs. It should also be noted that the resistance of adults is obviously greater than that of larvae, so the use of pesticides may be higher. Moreover, the emergence time of adults is definitely later than that of larvae. Therefore, the application time of vegetables with insect eyes is closer to the harvest, and the pesticides are less decomposed and higher. In summary, consumers should not believe in the traditional concept of “there is no pesticide”.
Dedicated detergent is not as good as boiling water
Experts caution that the washing of vegetables and fruits is very important. Effective washing can remove about 95% of bacteria, 60% of pesticide residues and almost all parasite eggs.
For green leafy vegetables that are easily broken and broken, it is recommended to soak them in water for about 30 minutes. In order to increase the effect of removing pesticides, the detergent solution can be configured with a professional detergent, but it should be noted that most of the popular detergents on the market that can remove the pesticide flag have little effect. Help remove, it is recommended to consult agricultural professionals. In fact, the effect of washing with boiling water is actually better than a lot of detergent. Especially for leek, it should be soaked 3 to 5 times, 10 to 15 minutes each time, and then boiled in boiling water.
However, in order to further remove bacteria and microorganisms, it should be rinsed after dipping, especially the overlapping parts of the roots of the vegetables should be rinsed open, and the leaves must be washed one by one. Especially for spinach, sage, chicken, cabbage, etc., which have smaller leaves, the roots can be removed, and then the roots are washed up in front of the faucet, and the residual pesticide is removed by the impact of water.
In addition, vegetables having a certain hardness such as cucumbers and potatoes may be further brushed by a brush in addition to the above means.
It is advisable to eat fruit or peel.
For fruits, in addition to adequate washing, it is best to peel them before eating.
Experts pointed out that many fruits, such as apples and pears, have a layer of wax that can block pesticides from entering the interior of the plant. Therefore, before eating such fruits, as long as the surface of the skin is removed, most of the pesticide residues can be avoided.
Shi Shusen also introduced, for example, tomatoes, cucumbers, strawberries and other fruits in order to reduce the growth cycle, as soon as possible, producers usually use plant growth regulators and other pesticides for ripening, etc., it is recommended not to buy a fruit that is too large and too bright colors.
Buy vegetables, don't just look at "beautiful"
When buying vegetables, some vegetables that look a bit like melons may be healthier than those big, bright ones.
Experts suggest that you should not buy too much food, buy a head, the shape is more common. Because the shape of vegetables that abuse hormones and pesticides usually changes, such as oversized, oddly colored tomatoes, potatoes, and cucumbers. Onions, fennel, coriander, and peppers have special tastes, usually less pests and less pesticide residues. Don't worry too much when buying.
Another principle is to try to choose quality vegetables with a place of origin and signs. The high-quality vegetables are fresh and tender, the shape is full, the surface is moist and bright, no yellow leaves, no scars, no pests and diseases, no bad spots. According to the control and use of pesticides and fertilizers in the vegetable production process, the current vegetables in China can be divided into organic, green, pollution-free and uncontrolled. It is recommended to purchase the first three categories where possible. Uncontrolled vegetables usually do not have any indications, but this does not mean that uncontrolled vegetables must be unsafe, but the marked products are more insured.
How to eliminate pesticide residues in vegetables and fruits