Scanning Electron Microscopy of Fungi Isolated From Some Cake Samples
Thirty cake samples of twelve different companies were collected from Damietta and Dakahlia Governorates in September and October 2012. The highest value of total fungal counts was in C12 sample being 90.27×102cfu/g and the lowest value was in B27 sample being 0.27×102cfu/g. All samples were in production date except one sample (A4) was expired. The validity periods of most samples were between 3 and 6 months except one sample (C7) was one year. All samples were not in conformity with the Egyptian Organization for Standardization and Quality of cake (ES: 4037/2005). Fourteen fungal isolates were obtained from cake samples. Identification was based on the visual observation of fungal isolates grown on different cultivation media. The vegetative and reproductive strictness was observed by digital light microscope and scanning electron microscope (SEM). From these characteristics, fungal isolates were identified as Rhizopus stolonifer, Aspergillus niger, Aspergillus oryzae, Aspergillus flavus and Penicillium sp.