Authors: (Hanaa H. Abd El-Baky, Gamal S. El-Baroty, Plant Biochemistry Department, National Research Centre, Dokki, Cairo, Egypt, and others)
Abstract: Renewable biofuels are needed to displace petroleum derived transport fuels, which contribute to global warming and are of limited availability. The scarcity of conventional fossil fuels, growing emissions of combustion-generated pollutants, and their increasing costs will make renewable energy sources more attractive (Chisti 2008). Petroleum-based fuels are limited reserves concentrated in certain regions of the world. These sources are on the verge of reaching their peak production. The fossil fuel resources are shortening day by day. As a consequence there is interest in interactive biomass resources including biomass from an aquatic environmental (Chisti, 2007 and Ross et al., 2008). Recently, there are two kinds of important issues, environment and energy crisis issues. The environmental issue is global warming. Everybody knows that using fossil fuels has caused global warming; therefore renewable clean energy is required for replacing fossil fuel with biomass to reduce the CO2 emission. Another issue is the energy crisis, where increasing global petroleum crude oil prices have impacts on domestic energy situations as well as on local society life. Therefore, for solving the important issue above, a renewable energy should be developed. Global warming, induced by increases of greenhouse effect gases concentrations in the atmosphere, has become an important environmental concern (Chisti 2008 and Mike 2009).