DISINFECTION OF Aspergillus ochraceus AND INACTIVATION OF OCHRATOXIN A IN CREAL – BASED BABY FOOD USING GAMMA RADIATION | ||
| Journal of Agricultural Chemistry and Biotechnology | ||
| Article 5, Volume 32, Issue 2, February 2007, Pages 1425-1433 PDF (557.82 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jacb.2007.200993 | ||
| Authors | ||
| M. A. Arafa1; Alia M. Hashem2 | ||
| 1The Department of Nutrition and Food Science, Faculty of Home Economics, Helwan University, Cairo, Egypt | ||
| 2Department of Food Hygiene, Mycotoxins Unit, National Nutrition Institute, Cairo, Egypt | ||
| Abstract | ||
| Ochratoxin A is a typical cereal contaminant with strong nephrotoxic activity. Gamma irradiation was used as a technique of food preservation to disinfect the cereal – based baby food of Aspergillus ochraceus, as well as inactivation of ochratoxin A. Unirradiated samples of cereal-based baby food were spiked with A.ochraceus and incubated for 30 days, the fungus could grown reaching to mean counts of 2.3 Í 107 (CFU/g) and produced ochratoxin A in mean amounts of 86 (ppb) through the incubation period. At a radiation dose of 5 (K Gy), the growth of A.ochraceus and the subsequent ochratoxin A production in cereal – babsed baby food were completely inhibited. The results of detoxification trial revealed that destruction of ochratoxin A by gamma irradiation doses had already begun at 5 (KGy). A radiation dose of 10 (KGy), controlled the occurrence of ochratoxin A in cereal – based baby food only by 23%. | ||
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