Evaluation of the effects of cold argon plasma jet on the clearance of Ochratoxin A produced by different isolates of Aspergillus nigri

Mycotoxins are secondary metabolites of the fungi, and often arrange as cyclic hydrocarbons structurally. The aim of this study was an evaluation of the effects of cold argon plasma jet on the clearance of Ochratoxin A produced by isolates of Aspergillus nigri. food sources including corn, wheat, oatmeal, rice and flour products were sampled of Iran. The fungal species were cultured for identification on CHAPK medium and also on (SB + YE) and (SB + ME) media for obtaining Ochratoxin A. The mean initial concentration of Ochratoxin A in ME + SB medium was 22.23 μg / kg and at 60 and 360 seconds reached to 38.36 and 4.82 μg / kg concentrations respectively, and in the YE + SB medium being at 38 / 34 μg / kg reached to 25.88 and 2.47 mg / kg concentrations, respectively. In comparison with Log / Lin with Lin / Log, the initial concentrations of Ochratoxin A in ME + SB medium was 39.224 μg/kg and at 60 and 360 seconds reached 22.26 and 8.414 μg / kg, respectively, and in the YE + SB medium from 31.50 to 22.68 and 8.95 μg / kg concentrations, respectively. Statistical analysis showed significant reduction of Ochratoxin changes produced by fungal isolates. This change was significant until the increase of 360 seconds with Plasma jet treatment in the environment (YE + SB), a decrease in the amount of Ochratoxin. Therefore, the jet plasma system can be used to eliminate fungal mycotoxins in order to increase the quality of food.