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Objective: The aim of present study was to investigate fungal contamination in a salted bivalved Donax trunculus and controlling their hazards by some natural products. Material: A total of 70 samples were selected from two fish markets in Alexandria (Egypt). Microbiological analysis was performed to identify potential sources of fungal contamination and investigate the bioactivity potential of lemon juice, vinegar and black seed oil as antifungal agent in the preservation of Donax trunculus. Results: Results obtained showed that Donax trunculus collected were contaminated by fungi, namely: Aspergillus niger, Aspergillus flavus, Rhizopus stolonifer, Fusarium oxysporum and Candida albicans. Results of in vitro antifungal tests revealed that mixing blackseed oil and vinegar (2:1) has strong antifungal activity against all isolated fungal strains. Conclusion: The present study indicates that treatment with natural organic product like blackseed oil and vinegar can effectively reduce the fungal load. Hence, it is suggested that mollusc should be preserved and depurated before salting in both blackseed oil and vinegar (2:1) to prevent fungal contamination for human consumption.
[Nessma A. El Zawawy and Mahy M. Mona (2015); Isolation of pathogenic fungi from salted marine bivalve Donax trunculus in Egypt with particular emphasis on controlling their hazard Int. J. of Adv. Res. 3 (4). 0] (ISSN 2320-5407). www.journalijar.com
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