Cold plasma is an effective method for degrading fungal toxins in agricultural products,but degradation process is influenced by parameters of cold plasma process.To accurately predict degradation process of ochratoxin A in raisins,a computational model was developed using finite element software COMSOL.This model considered process parameters of plasma,including discharge frequency,size of reaction chamber,and shape of food matrix,to predict degradation process of ochratoxin A in raisins.Results showed that mod-el and experimental outcomes were highly consistent.As discharge frequency increases,half-life of ochratoxin A degradation signific-antly decreased.When discharge frequency increased from 0.6 to 1.2 kHz,half-life was reduced to 57%of original duration.Raisins shape and reactor size had a minor impact on degradation process.Results confirmed that this model was a reliable tool for optimizing conditions of cold plasma treatment,providing a theoretical basis for industrial application of plasma degradation of fungal toxins in agri-cultural products.
维普
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