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Sultan Qaboos University (2018)

Microbial community-and lsolate-based approaches for the production of biofuels and high-value products in the Sultanate of Oman.

Gomaa, Mohamed Ahmed

Titre : Microbial community-and lsolate-based approaches for the production of biofuels and high-value products in the Sultanate of Oman.

Auteur : Gomaa, Mohamed Ahmed

Université de soutenance : Sultan Qaboos University

Grade : Doctor of Philosophy in biology 2018

Résumé partiel
The modern world has come to the realization that our industrial productivity has been having detrimental effects on the environment, like the release of high amounts of greenhouse gases from factories making high-value products and transportation vehicles. As a consequence, many of the world’s influential entities have been striving for the preservation of our environment while maintaining technological and industrial advancement. A major contributor to the large carbon footprint of modern civilization is the use of fossil fuels for transportation and in large industrial factories for the production of high-value products. An attractive alternative for the use of fossil fuels, which cause a lot of carbon and nitrogen emissions, is the more environmentally benign biofuels. Apart from biofuels, production of high-value products has been gaining momentum with the advancements in genetic engineering. However, production of biofuels and high-value products has not been investigated from the various unexplored ecosystems and renewable sources available in the Sultanate of Oman. Therefore, this doctoral study investigated the potential of available and cheap resources (like organic wastes, lignocellulosic leaves and microbial mats), which have been deemed an environmental burden, for the production of different types of biofuels (specifically bioethanol, biodiesel and biomethane). Furthermore, genetic engineering techniques have been employed for the generation of a phototrophic mutant capable of producing astaxanthin, which is considered a high-value compound in today’s market. The approaches taken in this doctoral thesis are based on the use of either communities or isolates for the production of biofuel or high-value compounds. The results of this doctoral thesis would form a strong basis for biofuel and high-value compound production in the Sultanate of Oman. Below is a summary of the different studies performed in this doctoral thesis summa Study One : Potential of fecal waste for the production of bioethanol, biodiesel and biomethane. • Fecal waste was compared from different sources for bioethanol, biodiesel and biomethane production. .

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