How to effectively remove pesticides from fruits and vegetables

With the use of pesticides in the cultivation of fruits and vegetables, how to effectively remove pesticides from fruits and vegetables has become a problem that plagues people. This article will introduce how to effectively remove pesticides from fruits and vegetables. I hope everyone can eat green and healthy fruits and vegetables.

Tap water. Zhu Yi, an associate professor at the College of Food Science and Nutritional Engineering at China Agricultural University, said that soaking or rinsing with tap water can remove some pesticide residues from fruits and vegetables, but do not soak for too long, preferably 10 minutes. If the inflation time is too long, nitrite may be produced and it may be harmful to health. It is best to wash the fruits and vegetables under the faucet first. The skin with the appearance of “sturdy” can also be washed with a small brush. It feels cleaned, and then rinsed with water for 15-20 seconds. Tang Xiaowei, an associate researcher at the National Vegetable Systems Engineering Center, added that the proportion of vegetable poisoning caused by organophosphorus pesticides is high, including common dichlorvos. When cleaning such pesticides, the warm water washing effect is better than cold water.

brine. He Jiguo, an associate professor at the College of Food Science and Nutritional Engineering at China Agricultural University, said that it is not advisable to soak fruit and vegetables with salt water. Especially for green leafy vegetables, salt water will destroy the cell membrane of the leaves, not only losing nutrients, but also allowing the pesticides to enter the dish. . Ma Zhiying, director of the Shanghai Food Association Expert Committee, pointed out that salt water does not have much effect on removing pesticides from fruits and vegetables, but it is helpful to remove pests from fruits and vegetables. For example, salt water can soak some insects in fruits and vegetables such as cherries and cauliflower.

Add vinegar or alkali (sodium bicarbonate) to the water. Zhu Yi pointed out that adding some vinegar or baking soda to the water is more or less helpful in washing off the pesticide residues of different kinds of fruits and vegetables. However, for common pesticide residues, the effect of baking with baking soda may be better. Research by Liu Weisen and others from the School of Light Industry and Food Science, South China University of Technology also confirmed that baking soda and other edible bases have certain effects on removing organic phosphorus pesticide residues. The removal of 10% edible alkali in clear water has the best effect and the removal rate of dichlorvos. It can reach 76.11%, however, the effect of the alkalinity of less than 2% or more than 15% is the same as that of tap water. Therefore, it is necessary to control the concentration of fruits and vegetables with alkaline water.

Taomi water. Ma Zhiying pointed out that the common rice water in people's lives is actually weak alkaline water, which is helpful for cleaning pesticide residues. However, Taiwan's "Health" magazine reminded that some rice itself has pesticide residues, and there may be uncertain risks in the rice water.

Detergent. Jiang Wei, a professor at the College of Food Science and Nutritional Engineering at China Agricultural University, warned that the method of washing fruits and vegetables with detergents is not worth promoting because the detergent itself is a chemical substance that may cause secondary pollution.

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