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ISSN: 2155-952X

Journal of Biotechnology & Biomaterials
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Research Article

Evaluation of Bioethanol Production from Ulva lactuca By Saccharomyces cerevisiae

Waleed M M El-Sayed1*, Hassan A H Ibrahim2, Usama M Abdul-Raouf3 and Manal Mahmoud El-Nagar2

1Microbiology Department, National Institute of Oceanography and Fisheries (NIOF), Red Sea, Egypt

2Microbiology Department, National Institute of Oceanography and Fisheries (NIOF), Alexandria, Egypt

3Microbiology Department, Faculty of Science, Al-Azhar University, Assuit Branch, Egypt

*Corresponding Author:
Waleed M M El-Sayed
Microbiology Department, Marine Environmental Division
National Institute of Oceanography and Fisheries (NIOF), Red Sea, Egypt
Tel: +201224526982
E-mail: [email protected]

Received date: April 19, 2016; Accepted date: May 13, 2016; Published date: May 20, 2016

Citation: El-Sayed WMM, Ibrahim HAH, Abdul-Raouf UM, El-Nagar MM (2016) Evaluation of Bioethanol Production from Ulva lactuca By Saccharomyces cerevisiae. J Biotechnol Biomater 6:226. doi:10.4172/2155-952X.1000226

Copyright: © 2016 El-Sayed WMM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Ulva lactuca acts a vital potential marine energy crop. Reducing sugars from U. lactuca were obtained and evaluated for the bioethanol production by Saccharomyces cerevisiae. The optimization process was investigated by Plackett-Burman experimental design followed by immobilization technique on supported solid materials. Results show that the sugar concentration, pH level and the inoculums size have a significant effect on the bioethanol production by S. cerevisiae to give concentration (12 ± 0.5 g/g of sugar/l) with conversion efficiency (47.1%).

The immobilization of yeast cells upon luffa pulp shows the highest bioethanol productivity (13.3 g/g of sugar/l) with conversion efficiency (52%). Therefore, the immobilized yeast upon luffa pulp was recommended in the current work. Moreover, the supportive luffa pulp was efficiently used and recycled for several times in the bioethanol production.

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