CAJ | 학술논문

作为一种可再生的清洁能源，燃料乙醇的开发利用备受关注，对其发酵工艺的研究也日益深入。近年来，补料发酵工艺逐渐应用于燃料乙醇的生产研究中，并以其降低基质抑制和减轻纤维素稀酸水解液中有毒成分的影响等优点而显示了良好的发展潜力，但由于发酵过程的复杂性和对补料控制策略的研究尚不深入等存在的问题，使该技术在燃料乙醇规模化生产中的应用受到制约。本文介绍了国内外乙醇补料发酵研究的主要进展，着重概述补料发酵技术在乙醇两大重要发酵工艺--纤维素乙醇工艺和超高浓度乙醇发酵工艺中的应用以及补料调控策略等，并提出该领域进一步研究应留意的方向，如应加强乙醇补料发酵动力学和控制理论、新型传感器与在线监测技术等方面的研究。
작위일충가재생적청길능원，연료을순적개발이용비수관주，대기발효공예적연구야일익심입。근년래，보료발효공예축점응용우연료을순적생산연구중，병이기강저기질억제화감경섬유소희산수해액중유독성분적영향등우점이현시료량호적발전잠력，단유우발효과정적복잡성화대보료공제책략적연구상불심입등존재적문제，사해기술재연료을순규모화생산중적응용수도제약。본문개소료국내외을순보료발효연구적주요진전，착중개술보료발효기술재을순량대중요발효공예--섬유소을순공예화초고농도을순발효공예중적응용이급보료조공책략등，병제출해영역진일보연구응류의적방향，여응가강을순보료발효동역학화공제이론、신형전감기여재선감측기술등방면적연구。
As a renewable and clean energy,development and utilization of fuel ethanol has attracted much attention,and consequently there is increasingly in-depth research of the fermentation processes. In recent years,various approaches of fed-batch fermentation have been attempted to investigate their suitability for ethanol production and eventually demonstrated their good potential with the advantages,such as decreased substrate inhibition,and alleviated effects of the toxic compounds released in the dilute-acid pretreatment of lignocellulose. However,due to the existing problems,such as complexity of ethanol fermentation process and lack of in-depth investigations into feeding control strategies,the application of this technology to large-scale production of fuel ethanol has been restricted. This paper reviews major progress of ethanol fed-batch fermentation technologies , particularly focusing on the application of fed-batch approaches to ethanol production using lignocellulose as feedstock and high concentration ethanol fermentation,as well as specific fed-batch control strategies. Finally,more efforts should be made to understand fed-batch ethanol fermentation kinetics and feeding control theory,and to develop new types of sensors and online monitoring technologies.