What is the method to remove pesticide residues in fruits and vegetables?
1. Soaking water cleaning method. Only part of the pesticides that pollute the environment can be removed, but water washing is the fundamental way to eliminate other waste and remove pesticides from vegetables and fresh fruits. Generally, the surface is cleaned with clean water first, and then soaked in clean water for 20-30 minutes.
You can add a small amount of vegetable and fruit detergent when soaking. After soaking, wash it with water two or three times. Suitable for various leafy vegetables, such as broccoli, daylily, amaranth, lettuce, coriander, green vegetables, etc.
2. Edible alkali immersion cleaning method. Keep a bottle of soda in the kitchen. The main pesticide used in our country is methyl parathion. Most of the methyl parathion pesticides will gradually dissolve and become ineffective after encountering alkali.
Methyl parathion pesticide can dissolve quickly and be ineffective in alkaline environment. Soaking in alkali is an effective way to remove pesticide pollution. First clean the surface debris, soak it in soda ash (usually 5g-10g of soda is added to 500ml of water) for about 15 minutes, and then rinse with water 3-5 times. Available fruits and vegetables: various vegetables, fruits and vegetables.
3. Rinse with boiling water and scald to clean. Pesticides on some vegetables can be rendered ineffective by heating. Boil the vegetables in hot water for 1-3 minutes and then rinse them. The pesticides on the vegetables will also lose their effectiveness. Such as broccoli, lettuce, coriander, cabbage, lettuce, pepper, beans and other vegetables.
4. Soaking and cleaning method in rice washing water. Before cooking rice in every home, the rice is usually rinsed several times with clean water. We can save the rice washing water used to rinse the rice and use it to rinse vegetables, because the rice washing water is weakly acidic, and the pesticide residues on the vegetables will not react with the rice. The acidic and alkaline rice washing water will slowly dissolve and become ineffective, thus removing some of the remaining pesticides on the vegetables.
5. Salt water cleaning method. Using 1%-3% salt water to clean vegetables can not only remove some pesticides, but also remove various small bugs hidden in the stems or the texture on the back of the leaves. Such as cabbage, cabbage, lettuce and other vegetables.
Before eating, you can also tear these vegetables into leaf by leaf, and then soak them in saline for a period of time. When soaking the vegetables, , it is best to allow all sides of the vegetables to fully absorb the salt water. Pesticide residues on vegetables will gradually lose their effectiveness after being soaked in water. Then, wash the vegetables several times with clean water until no colorful oily substance can be seen on the surface of the water.
6. Add water, soda and wheat flour to multiply. For fruits such as grapes, cherries, cherries, etc., first clean the surface of the fruits, then add some flour to soda ash (usually 5g-10g of soda is added to 500ml of water) to increase the water content. The consistency should be soaked for about 15 minutes, and then washed with water 3-5 times. It is very effective in removing residual pesticides, microorganisms, pollutants, residues, etc.
7. Peeling method. There are relatively large amounts of pesticides on the surface of vegetables and fruits, so peeling them is a better, easier and easier way to remove residual pesticides. In this way, the remaining pesticides and parasite eggs on the fruits and vegetables will be completely cleaned. Available fruits and vegetables: apples, pears, kiwis, loofah, cucumber, east melon, winter melon, beans, green beans, carrots, radishes, potatoes, etc.
8. Storage method. During the storage process of vegetables, oxygen in the air and active substances such as enzymes in vegetables can react with residual pesticides, causing the pesticides to oxidize and dissolve in the air, which can reduce the amount of pesticide residues and reduce their toxic side effects. Therefore, fruits and vegetables that are easy to store can be stored for a certain period of time to reduce the amount of pesticide residues. Suitable for iPhone, kiwi, winter melon and other non-perishable types. During the period of household prevention and control of the COVID-19 epidemic, every household purchased a large number of vegetables and fruits at one time, and the storage method played an auxiliary role in reducing residual pesticides.
9. Drying method. The function of the spectrometer will dissolve and destroy some residual pesticides in vegetables. Vegetables exposed to direct sunlight have less pesticide residue. For vegetables that are easy to store, it is best to store them for a few days. The oxygen in the air and the color enzymes in the vegetables have a certain decomposition effect on residual pesticides. Suitable for Chinese cabbage, Chinese cabbage, cabbage, etc. During the period of household prevention and control of the COVID-19 epidemic, every household purchased a large number of vegetables and fruits at one time, and the storage method played an auxiliary role in reducing residual pesticides.