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| 003 | EG-GiCUC | ||
| 005 | 20250223032836.0 | ||
| 008 | 211026s2021 ua dh f m 000 0 eng d | ||
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_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aM.Sc | ||
| 099 | _aCai01.12.05.M.Sc.2021.No.A | ||
| 100 | 0 | _aNoura Elsayed Ali Mostafa | |
| 245 | 1 | 0 |
_aAntimicrobial activity of zinc nanoparticles against some food borne microorganisms / _cNoura Elsayed Ali Mostafa ; Supervised Mohamed A. Rizk , Magdy Attia M. Yousef |
| 246 | 1 | 5 | _aتأثير النشاط ضد الميكروبى لجزيئات الزنك النانونيه على بعض ميكروبات الأغذية |
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_aCairo : _bNoura Elsayed Ali Mostafa , _c2021 |
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| 300 |
_a103 P. : _bcharts , facsimiles ; _c25cm |
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| 502 | _aThesis (M.Sc.) - Cairo University - Faculty of Science - Department of Botany - Microbiology | ||
| 520 | _aThis study aims to synthesize zinc oxide nanoparticles from Aspergillus terreus using the biological technique and evaluated for their antimicrobial activity against some food-borne microorganisms including (Gram+ve and Gram-ve bacteria) and filamentous fungi, Aspergillus fumigatus, A. niger, Fusarium verticillioides and Penicillium sp using agar plate diffusion method.The results showed that ZnONPs have a remarkable inhibition effect on the growth of tested bacteria and fungi. Maximum inhibition was observed at the concentration of 100 og/ml. Enzyme activities (amylase, protease and lipase) were significantly decreased by increasing the concentration of ZnONPs. It was interesting to note that the production of amylase by P. aeruginosa was nil.The obtained data of DNA showed that ZnO nanoparticles had a damaging effect on the total genomic DNA of the tested bacteria. Total microbial populations were significantly reduced when the plant seeds (beans, maize and pea) were treated with ZnONPs and stored for 30 days at room temperature. Therefore, zinc oxide nanoparticles were used as a preservative food material to increase the shelf life of food | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aAntimicrobial | |
| 653 | 4 | _aEnzyme activity | |
| 653 | 4 | _aZnONPs | |
| 700 | 0 |
_aMagdy Attia M. Yousef , _eSupervisor |
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| 700 | 0 |
_aMohamed A. Rizk , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
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_aNazla _eRevisor |
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_aShimaa _eCataloger |
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_2ddc _cTH |
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