提高酵母乙酸胁迫耐性的方法概述

An Overview of The Methods for Improving the Acetic Acid Stress Tolerance of Yeast

利用木质纤维素制备燃料乙醇新能源有利于人类社会的可持续发展,具有深远的社会效益和经济效益。预处理是利用木质纤维素类生物质的首要环节,在此过程中会产生一些抑制剂,其中乙酸是最主要的抑制剂之一,对酵母的生长和发酵产乙醇产生抑制作用。目前,可通过紫外诱变、驯化、代谢工程等菌种选育方法以及发酵过程中的控制等方式提高酵母在发酵过程中对乙酸的胁迫耐受性。

Ethanol production from lignocellulose is beneficial to the sustainable development of human society and has profound social and economic benefits. Pretreatment is the first step of using lignocellulosic biomass, in which some inhibitors are generated, acetic acid is one of the most inhibitors, which inhibiting microbial growth and subsequent fermentation.At present, mutagenic breeding, adaption, metabolic engineering, and also fermentation control to reduce the effects of the acetic acid.