Department of Biological and Agricultural Engineering, Campus Box 7625, North Carolina State University, Raleigh, NC 27695, USA.
Bioresour Technol. 2011 Sep;102(17):7613-20. doi: 10.1016/j.biortech.2011.05.070. Epub 2011 May 30.
Bermuda grass is a promising feedstock for the production of fuel ethanol in the Southern United States. This paper presents a review of the significant amount of research on the conversion of Bermuda grass to ethanol and a brief discussion on the factors affecting the biomass production in the field. The biggest challenge of biomass conversion comes from the recalcitrance of lignocellulose. A variety of chemical, physico-chemical, and biological pretreatment methods have been investigated to improve the digestibility of Bermuda grass with encouraging results reported. The subsequent enzymatic hydrolysis and fermentation steps have also been extensively studied and effectively optimized. It is expected that the development of genetic engineering technologies for the grass and fermenting organisms has the potential to greatly improve the economic viability of Bermuda grass-based fuel ethanol production systems. Other energy applications of Bermuda grass include anaerobic digestion for biogas generation and pyrolysis for syngas production.
百慕大草是美国南部生产燃料乙醇很有前途的原料。本文综述了大量关于将百慕大草转化为乙醇的研究，并简要讨论了影响田间生物质产量的因素。生物质转化的最大挑战来自木质纤维素的顽固性。已经研究了多种化学、物理化学和生物预处理方法来提高百慕大草的消化率，报告了令人鼓舞的结果。随后的酶解和发酵步骤也得到了广泛的研究和有效优化。预计草和发酵生物的遗传工程技术的发展有可能大大提高基于百慕大草的燃料乙醇生产系统的经济可行性。百慕大草的其他能源应用包括用于沼气生产的厌氧消化和用于合成气生产的热解。
