Mycolgical Studies On Infant Foods With Special Reference To Mycotoxins

A total of one hundred samples of locally manufactured and imported milk based infant foods samples (70 and 30 samples respectively) were collected in their containers from different pharmacies and supermarkets in Zagazig city. Samples transferred to laboExamined samples were contaminated with moulds by count ranged from 0.6x103 to 5.4x103/g of locally manufactured samples and 0.3x102 to 4x102 in imported one with a mean values of 2.38x103±0.32x102, 2.1x102±0.51x102/g respectively.A total of 201 mould strains be recovered from all tested samples were distributed in locally manufactured samples as 48 (32.43%), Penicillium spp., 47 (31.76%) Aspergillus spp., 18 (12.16%) Mucor spp., 2 (1.35%) Geotrichum spp., 6 (4.06%) Rhizopus spp., A total of 131 isolated Aspergillus strains were isolate form surveyed samples and distributed as 51 (38.93%) A.niger, 433 (32.82%) A.flavus, 26 (19.85%) A.candidus, 5 (3.82%) A.oryzea and 6 (4.58%) A.terreus strains.A total of 43 A.flavus strains were obtained from examined samples and screened for their ability to produce aflatoxins. TLC analysis showed that 9 (20.9%) strains were toxigenic and could be produce 3 types of aflatoxins: B2, G1 and G2 in liquid syntheti