Fruit and Vegetable Pesticide Residue Detector:Enzyme Inhibition-Based Pesticide Residue Analyzer for Food Safety Monitoring​

The importance of pesticide residue detection in fruits and vegetables

Pesticide residues are one of the core factors affecting the quality and safety of fruits and vegetables, especially organophosphate and carbamate pesticides. Excessive intake can pose a serious threat to human health. Traditional laboratory testing methods have long cycles and high costs, making it difficult to meet the needs of rapid on-site screening and batch testing. The fruit and vegetable pesticide residue detector is based on enzyme inhibition rate colorimetric method, which realizes rapid and accurate detection of pesticide residues in vegetables, fruits, tea, grains and other products, providing efficient technical means for quality and safety supervision of agricultural products, market circulation control, and household food safety.

Working principle

The fruit and vegetable pesticide residue detector is designed according to the national standard GB/T5009.199-2003 and relevant international standards (WHO, FAO, EPA). Its core detection principle is the enzyme inhibition rate method:

Enzyme reaction mechanism: Using acetylcholinesterase to catalyze substrate hydrolysis reaction, pesticide residues will inhibit the enzyme activity, leading to changes in color reaction;

Luminescence detection: By measuring the changes in absorbance values of the colorimetric system, the inhibition rate is calculated to determine whether pesticide residues exceed the standard;

Intelligent judgment: The instrument's built-in algorithm automatically judges whether the sample is qualified or not, and the test results are displayed intuitively.

This method is specifically designed for rapid screening of organophosphorus and carbamate pesticides, with good sensitivity and specificity.

Technical advantages and core functions

1. Efficient multi-channel detection: Equipped with 12 independent detection channels, it can process multiple samples simultaneously, allowing for immediate detection without interference, greatly improving detection efficiency and suitable for batch sample screening.

2. Intelligent operating system and user-friendly design: Equipped with a multi-core processor (with a main frequency of 1.88GHz), a 7-inch high-sensitivity touch screen, supporting Chinese menu operations, and a built-in database of over 100 vegetable names that can be customized for editing and printing, significantly enhancing the user experience.

3. High precision optical system: The light source adopts imported ultra bright LED, which has automatic light intensity calibration and intelligent voltage stabilization functions, effectively avoiding temperature drift and ensuring stable and reliable detection results.

4. Data networking and remote management: Supports GPRS remote transmission, WiFi networking, and USB interface connection. Data can be uploaded to the platform in real time or exported to a computer for easy statistics, analysis, and traceability, meeting regulatory compliance requirements.

5. Portable design and safety guarantee: using DC12V DC power supply, equipped with lithium battery charger, suitable for on-site and mobile scenarios; Equipped with user permission management, power on self-test, and fault diagnosis functions, ensuring equipment safety and operating standards.

Main application areas

Agricultural product production bases and wholesale markets: used for rapid screening of pesticide residues before fruit and vegetable harvesting and during circulation;

Food supervision and third-party testing agencies: assist in conducting food safety sampling and risk monitoring;

Catering services and collective canteens: ensuring safety control before food processing;

Family and personal use: Provide convenient fruit and vegetable safety self inspection tools.

The fruit and vegetable pesticide residue detector has become an important detection tool in modern food safety supervision due to its fast, accurate, and portable characteristics. With the continuous improvement of society's requirements for food safety, comprehensive and easy to operate fruit and vegetable pesticide residue detectors will play an increasingly important role in various aspects of production, circulation, and consumption. Choosing a reliable fruit and vegetable pesticide residue detector is not only a necessary means of quality control, but also an important technical support for building a food safety trust system.