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Home > News & Events > Detecting Toxins in Food

Detecting Toxins in Food

Nuts and FruitsAflatoxins are formed in mold within stored foods such as almonds and peanuts. Typical chromatography methods of toxin screening can be complex and time-consuming. By using a fluorescence-based system, one Ocean Optics customer now offers customers a reliable alternative to chromatography for aflatoxin detection.

Solutions in Action

The Problem: 

Contamination of peanuts with aflatoxin is carefully regulated, but monitoring in food products requires sending samples to a lab for high-performance liquid chromatography (HPLC) testing.

The Application:

Fluorescence-based detection offers a rapid, accurate alternative to HPLC detection of aflatoxin in non-lab settings. By looking at ratios of multiple fluorescence peaks, the levels of multiple mycotoxins can be assessed simultaneously.

The Solution: 

A complex optical sub-assembly to interrogate a glass capillary containing the sample. Once mounted in the customer-provided chamber, this subsystem becomes a drop-in component to the final system.

Customization:OEM_module_schematic

  • Optical subsystem consisting of LED illumination module, light collection and filtering optics, QE65000 spectrometer and neon wavelength calibration source
  • Automated 12-point spectrometer calibration routine run by onboard CCA
  • Custom firmware using subpixel interpolation to report values at consistent wavelengths from system to system
  • Integrated cooling system to maintain constant spectrometer temperature
Learn more about other Solutions in Action and popular spectrometers for OEM applications.