초록
<P><B>Abstract</B><P>This review presents a summary of published papers on the improvement of sugar beet yield and its transformation into bioethanol. After describing the current political and economic context of sugar beet production, the influence of factors during crop growth is considered. The main factor influencing the crop yield and consequently the bioethanol yield is weather variability. Other parameters such as climate change, fertilizer and crop management are noted and explained in further paragraphs. Irrigation is required in semi-arid countries and plays a role in the different results achieved. After the overview of the crop growth conditions, sugar beet transformation into bioethanol is outlined with reference to the most critical steps, the different raw materials derived from sugar beet and the optimal parameters for obtaining the highest possible yield in terms of bioethanol. With regard to the economics on bioenergy production, the goal is to obtain the highest yield possible in terms of sugar beet, sugar and then bioethanol. Some savings can be made via energy reduction during the fermentation or distillation steps. There is no single way to reach this goal because of the variability of the parameters, depending on the location and on the variability of weather.</P></P>