Using starchy waste as a promising raw material for bioethanol production with consequence purification using chitosan/sodium alginate polymeric membrane | ||||
Journal of Bioscience and Applied Research | ||||
Article 2, Volume 5, Issue 2, June 2019, Page 154-166 PDF (1.45 MB) | ||||
Document Type: Original Article | ||||
DOI: 10.21608/jbaar.2019.138664 | ||||
![]() | ||||
Authors | ||||
Tarek H. Taha ![]() ![]() | ||||
1Environmental Biotechnology Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, 21934, Alexandria, Egypt. | ||||
2Polymer Materials Research Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, 21934, Alexandria, Egypt. | ||||
3Chemistry Department, Faculty of Science, Al-Azhar University, Cairo, Egypt | ||||
4Environment and Natural Materials Research Institute (ENMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, 21934, Alexandria, Egypt | ||||
5Environment and Natural Materials Research Institute (ENMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab, 21934, Alexandria, Egyp | ||||
Abstract | ||||
The current study is concerned with using environmental wastes as raw materials for bio-ethanol production. The alpha-amylase enzyme has been used to convert the starch molecules of kitchen waste into simple units of glucose which are subsequently fermented into bioethanol. The obtained results showed that 40% substrate and 100 µl of α-amylase were the optimum concentration to produce the highest glucose units at 417.9 and 482.5 milligram/deciliter (mg/dl), respectively. The highest bioethanol production of 423.5 mg/dl was obtained after anaerobic fermentation of free yeast cells at 30oC without shaking. Both bio-ethanol and 25% ethanol were separated by using an amicon cell ultra-filtration system integrated with chitosan or sodium alginate membranes under nitrogen pressure. Each membrane was characterized by Scanning Electron Microscope (SEM) and Ion Exchange Capacity (IEC); while, the hydrophilicity/hydrophobicity was investigated using contact angle. The whole system succeeded to elevate the ethanol concentration in a range of 47-50%, which could be increased with more polymeric modifications | ||||
Keywords | ||||
Environmental waste; Chitosan; and sodium alginate membranes; Production of bio-ethanol; Bioethanol/water polymeric separation | ||||
Statistics Article View: 307 PDF Download: 371 |
||||