Performance of a UV-A LED system for degradation of aflatoxins B and M in pure water kinetics and cytotoxicity study.

The efficacy of a UV-A light emitting diode system (LED) to reduce the concentrations of aflatoxin B, aflatoxin M (AFB, AFM) in pure water was studied. This work investigates and reveals the kinetics and main mechanism(s) responsible for the destruction of aflatoxins in pure water and assesses the cytotoxicity in liver hepatocellular cells. Irradiation experiments were conducted using an LED system operating at 365 nm (monochromatic wave-length).