Stainless steel exposed to synergetic action of biocide Oxonia-Active® (OA) and microbial spores was investigated. The corrosion effect of AISI 316L stainless steel treated by OA (consisting of dihydrogen dioxide and ethaneperoxoic acid solution) and in a mixture consisting of OA and Aspergillus niger spore suspension (Bio-OA) was explored. The stainless steel shows higher corrosion behavior in Bio-OA than in OA immersion. Taking into account the electrochemical results and the AFM measurements, we can assert that Bio-OA acts more destructively on the metallic surface than pure OA. This effect should be taken into account because it can affect the quality of the food and beverages produced in equipments made of AISI 316L stainless steel.

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