"People take food as the sky", eating is an indispensable thing in daily life, and "five fruits and vegetables every day" are the basic nutritional needs for maintaining health, but the food safety of these vegetables and fruits eaten in the stomach, Are you at ease? The pesticide residues in fruits and vegetables may not be washed away. It is most important to choose the source of high-quality fruits and vegetables. Pesticides can be divided into systemic pesticides and contact pesticides according to the characteristics of the mechanism of action.
The guiding effect is distributed in the plant to achieve the purpose of eliminating pests and diseases. Since systemic pesticides act job email list in plants rather than just on the surface of plants, if there are excessive residues of systemic pesticides, they cannot be removed by cleaning. Therefore, it is more important to choose a safe source of vegetables and fruits than to wash them carefully.TNL Brand Studio How to test for pesticide residues in fruits and vegetables? Mass spectrometry quick sieve method is the most accurate It is not easy to check the safety of all fruits and vegetables! The Taipei Agricultural Products Transportation and Marketing Corporation (Bei Nong) alone can handle about 1,500 tons of vegetables in a single day. Taiwan eats so many fruits and vegetables every day. How does it manage? At present, the domestic agricultural production center adopts a random sampling method, and takes some samples from a large number of fruits and vegetables to test the pesticide residues. Sometimes the unqualified rate of pesticide residues can reach 10% . Even in 2021, the Consumer Protection Department of the Executive Yuan will sample online shopping. The results of pesticide residues in vegetable products are even more alarming, with a failure rate of 30%.
One of the green onion products has a pesticide exceeding the standard by 36 times . In 2022, the Consumer Foundation will randomly test imported strawberries and local strawberries. up to 50% . This kind of situation is really uncomfortable, and it is very necessary to carefully examine and check. So, what method is used to test the pesticide residues in fruits and vegetables? At present, the commonly used rapid detection methods for pesticides (quick screening methods) can be divided into biochemical methods, Raman spectroscopy, and mass spectrometry fast screening methods. The biochemical method with the longest history is currently the most common quick screening method in major domestic markets and mass retailers. The main method is to allow pesticides to react with reagents to generate color, and to measure pesticide residues by color changes. This method is fast and cheap, but it has low specificity for pesticides and can only detect more than 30 kinds of pesticides.