| 000 | 03249cam a2200349 a 4500 | ||
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| 003 | EG-GiCUC | ||
| 005 | 20250223032649.0 | ||
| 008 | 201231s2020 ua dho f m 000 0 eng d | ||
| 040 |
_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aPh.D | ||
| 099 | _aCai01.07.06.Ph.D.2020.Ma.U | ||
| 100 | 0 | _aMaram Mamdouh Mohamed Sayed | |
| 245 | 1 | 0 |
_aUse of microbial isolates producing Biosurfactant for degradation of Synthetic dyes in water and its Activities as antimicrobial agent / _cMaram Mamdouh Mohamed Sayed ; Supervised Khalid Abdalfatah Abdelkawy , Mahoued Abdelhallim Mahmoued , Mahmoued Wafek Sadik |
| 246 | 1 | 5 | _aإستخدام سلالات ميكروبية منتجة لمخفضات التوتر السطحى فى التخلص من الصبغات من المياه وتأثيرها كمضادات الميكروبات |
| 260 |
_aCairo : _bMaram Mamdouh Mohamed Sayed , _c2020 |
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| 300 |
_a139 P . : _bcharts , facsmilies , photographs ; _c25cm |
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| 502 | _aThesis (Ph.D.) - Cairo University - Faculty of Agriculture - Department of Microbiology | ||
| 520 | _aDue to the presence of many microbes has a high ability to produce biosurface tension reducer from inexpensive renewable substrates. Recently it was reported that biosurfactants have many properties and applications. This study aimed to isolate biosurfactant producer{u2019}s microbes with heavy metals tolerance using different screening methods from different districts in Egypt. Hundred and seventy-one isolates were isolated from 10 different soil samples in different regions in Egypt. Soil analysis was performed to check for soil nutrients, pH level, the percentage of organic matter, and the volumetric distribution of soil granules. The total microbial count has assessed, and the morphological characterization of microbial isolates has identified. The lipase activity, the Parafilm-M method, Oil spreading technique, and the Emulsification index (E24), were performed. Organic matter percentage of soil samples were ranged from 0.07 % to 0.35 %. The most soil types were respectively, silt clay soil and sandy soil while the pH level was found to be neutral to alkaline. Out of 171 isolates, 80 (46.78 %) isolates were showed a high ability to degrade the used oil completely, while 91 (53.22 %) isolates have a low ability to degrade the oil. Among those 80 isolates, only 21 isolates were categorized as strong isolates according to their results in oil degradation, ParafilmM-and oil spreading tests. Our study reveals the high ability of biosurfactant production among Egyptian isolates isolated from highly nutrient-rich soils from different regions in Egypt. High resistance to different heavy metals was also shown which makes our isolates a promising source for different applications | ||
| 530 | _aIssued also as CD | ||
| 653 | _aE24 and Oil degradation | ||
| 653 | 4 | _aBiosurfactant | |
| 653 | 4 | _aHeavy-metals | |
| 700 | 0 |
_aKhalid Abdalfatah Abdelkawy , _eSupervisor |
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| 700 | 0 |
_aMahmoued Wafek Sadik , _eSupervisor |
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| 700 | 0 |
_aMahoued Abdelhallim Mahmoued , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
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_aAmira _eCataloger |
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| 905 |
_aNazla _eRevisor |
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| 942 |
_2ddc _cTH |
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_c79393 _d79393 |
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