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Aflatoxins, particularly aflatoxin B1 (AFB1), represent one of the most persistent and serious threats to global food and feed safety. Produced primarily by Aspergillus flavus and Aspergillus parasiticus, these naturally occurring mycotoxins contaminate an estimated 25% of global crops — from corn and peanuts to tree nuts, cereals, and oilseeds — posing severe health risks including liver cancer, immune suppression, and growth impairment in both humans and animals. Classified as a Group 1 human carcinogen by the International Agency for Research on Cancer, aflatoxin B1 is the most potent naturally occurring liver carcinogen known to science.
In response to this escalating challenge, international food safety authorities, including the European Union, the U.S. FDA, and China’s GB standards, have established strict maximum residue limits (MRLs) for aflatoxins in food and feed commodities. According to recent analyses of RASFF notifications, aflatoxin B1 remains the most frequently reported mycotoxin in border rejections across products originating from the U.S. to China, underscoring the global nature of contamination and the urgent need for robust, rapid monitoring systems. As global supply chains become more complex and regulatory scrutiny intensifies, the demand for fast, accurate, and user‑friendly on-site testing solutions has never been greater.
At the heart of the iCheck Aflatoxin B1 Strip Test lies colloidal gold immunochromatography (GICA), a well‑established lateral flow technology that has revolutionized rapid on‑site screening. The test is built upon a competitive binding immunoassay format — a method ideally suited for detecting small‑molecule contaminants like mycotoxins.
When a prepared liquid sample is applied to the test strip, aflatoxin B1 molecules (if present) compete with a toxin‑protein conjugate immobilized on the test line for binding to a limited number of colloidal gold‑labeled antibodies. In the absence of AFB1, the gold‑labeled antibodies bind to the test line, producing a visible red color. Conversely, when AFB1 is present in the sample, it binds to the labeled antibodies first, preventing them from accumulating at the test line — causing the red color to diminish or disappear. The control line always appears regardless of sample composition, serving as an internal validity check. By scanning the strip with a dedicated iCheck reader, the instrument translates color intensity on the test line into a precise quantitative readout of AFB1 concentration in just 10–30 minutes.
The entire workflow requires no sophisticated laboratory equipment or highly trained personnel, making it equally suitable for central testing facilities, field inspection stations, and grain processing plants.
Clover Technology Group, Inc. , founded in 2002, has established itself as a premier provider of professional high‑tech products and services for the food industry. The company’s management and technical team are drawn from top research institutes and universities, with specialized expertise spanning physics, analytical chemistry, biochemistry, electronic engineering, and international trade.
Clover’s core competencies lie in three integrated product pillars: Immunoaffinity Columns (IAC) for sample purification, ELISA kits for residue detection of veterinary drugs and food contaminants, and Test Strips in both quantitative and qualitative formats. All Clover products are built upon proprietary antigen synthesis and monoclonal antibody preparation technologies, enabling rapid product development and consistently high batch‑to‑batch reproducibility. With a comprehensive quality management system that spans the entire chain of pre‑treatment consumables, testing instruments, and analytical methods, Clover serves a broad spectrum of sectors including inspection and quarantine authorities, dairy processors, grain and oil manufacturers, and feed producers — earning widespread recognition from testing institutions and enterprises around the world.
Headquartered in New York, Clover Technology Group, Inc. continues to drive innovation through collaborations with global partners, delivering practical, cost‑effective solutions that help ensure the safety and integrity of the global food supply.
| Feature | Highlight |
|---|---|
| Quantitative & Qualitative Capabilities | Available in both quantitative (iCheck reader‑assisted) and qualitative formats to suit different testing needs and budgets. |
| Fast Turnaround | Results delivered within 10–30 minutes from sample preparation to final readout, enabling real‑time decision‑making at receiving docks and production lines. |
| Broad Compatibility | Effective across a wide range of matrices including grains, corn, peanuts, animal feed, edible oils, and other aflatoxin‑susceptible commodities. |
| Built‑In Quality Control | Each test strip incorporates an internal control line that validates both strip integrity and correct assay execution — no false negatives from expired or damaged strips. |
| User‑Friendly Kit Composition | Each test kit contains: 25 iCheck rapid test cards, AFB‑specific microwells, dilution buffer (5 mL), 200 µL pipette tips (50 pcs), QR code (2 pcs) for calibration, and a detailed instruction manual. |
| High Sensitivity | Detection limits align with or exceed international regulatory MRLs, ensuring compliance with EU, FDA, and Chinese national standards. |
With its robust performance, operational simplicity, and the full technical backing of Clover Technology Group, the iCheck Aflatoxin B1 Strip Test represents an indispensable tool for any organization committed to proactive aflatoxin control — from farm to fork.