Mycoflora and mycotoxin of hazelnut (Corylus avellana L.) and walnut (Juglans regia L.) seeds in Egypt

aflatoxin aflatoxinas aflatoxine aflatoxins analyse microbiologique aspergillus flavus aspergillus fumigatus aspergillus niger avellana cladosporium corylus avellana egipto egypt eurotium flora microbiana flore microbienne fusarium hazelnuts isolierung juglans regia micotoxinas microbial flora microbiological analysis mycotoxine mycotoxins noisette noix nuez penicilina penicillins rhizomucor walnuts zearalenon zearalenona zearalenone