Gamma irradiation effects on ochratoxin A: Degradation, cytotoxicity and application in food

Add time:09/10/2019    Source:sciencedirect.com

Ochratoxin A (OTA) is one of the main mycotoxins that can be found in food. The use of gamma radiation is a technique for preserving food that may exert some effects on mycotoxins. OTA was irradiated in its dry form, in aqueous and in methanolic solutions, and in wheat flour, grape juice and wine. Additionally, the toxicity of OTA irradiated in water was tested. In aqueous solutions, more than 90% of the OTA was degraded by γ-radiation doses ≥2.5 kGy, and a 2-fold reduction in OTA cytotoxicity was observed. In food matrices, the elimination of OTA by γ-radiation was found more difficult, as radiation doses of 30 kGy eliminate at most 24% of the OTA. Higher moisture content of food matrices did not substantially increase OTA elimination. It is concluded that OTA is very sensitive to irradiation in water solutions but resistant in its dry form and in food matrices.

We also recommend Trading Suppliers and Manufacturers of Ochratoxin B methyl ester (cas 18496-57-6). Pls Click Website Link as below: cas 18496-57-6 suppliers

Prev:Validation of a liquid chromatography method for the simultaneous quantification of ochratoxin A and its analogues in red wines
Next:Co-occurrence of ochratoxin a and aflatoxins in chocolate marketed in Brazil)