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Document Type |
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Thesis |
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Document Title |
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The optimal conditions for the biofuel (bioethanol) production from Sugarcane wastes using Saccharomyces cerevisiea الظروف المثلى لإنتاج الوقود الحيوي (الإيثانول) من مخلفات قصب السكر باستخدام الخميره |
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Subject |
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Faculty of Sciences |
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Document Language |
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Arabic |
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Abstract |
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Saccharomyces cerevisiae is an interesting microorganism with good prospects in the future of yeast bioethanol production. In this study, both commercial and genetically modified S. cerevisiae were obtained from the local shops and the Microbial Biotechnology Department – National Research Center (Dokki-Egypt), and incubated at 25°C before being acclimatized for the conditions of this research.
In this work, the impacts of eight different biochemical conditions on the growth, carbohydrates yields, and mainly bioethanol productivity from sugarcane wastes SCW were studied in both species. Under different pH levels, the optimum pH observed between 6.0 and 6.5. When studying the impact of fermentation periods and temperature, the best fermentation periods were found to be between the 3rd and the 4th day. Additionally, the suitable temperature could be 30℃. Under different nitrogen source concentrations, 2g/L was the best one. Three different acidic pretreatment methods were studied and HCl acidic pre-treatment method was the most effective one. SCW were used as a solo carbon source in this study. However, it is used also as a case study with different concentrations. 33.3% of this carbon source was the better concentration to achieve this research targets. Nevertheless, different inoculums volumes were subjected in this work. 3ml inoculums volumes were observed to be the suitable volumes. Finally, under different phosphate source concentrations, at 1.6 g/L of H2PO4 with 1g/L K2HPO4 the highest ethanol production and other study goals were achieved. This project concludes by some suggestions for future work in an attempt to reach the commercial production of yeast bioethanol for the purpose of producing bioethanol at the lowest possible costs. |
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Supervisor |
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Prof. Lubna Saleh Maatouq Nawar |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1439 AH
2018 AD |
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Co-Supervisor |
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Prof. Hameda El Sayed Ahmed Elsayed |
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Added Date |
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Monday, July 2, 2018 |
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Researchers
| وفاء عابد باز | Baz, Wafa Abed | Researcher | Master | |
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