Kadam K L, Newman M M
Biotechnology Center for Fuels and Chemicals, National Renewable Energy Laboratory, Golden, Colorado 80401, USA.
Appl Microbiol Biotechnol. 1997 Jun;47(6):625-9. doi: 10.1007/s002530050985.
Nutrient cost is an important aspect in the fermentation of biomass to ethanol. With a goal of developing a cost-effective fermentation medium, several industrially available nutrient sources were evaluated for their effectiveness in the simultaneous saccharification and fermentation of pretreated poplar with Saccharomyces cerevisiae D5A. These studies showed that a low-cost medium containing 0.3% corn steep liquor and 2.5 mM MgSO4 7H2O was similar in performance to a nutrient-rich medium. Besides its low cost, this alternative medium consists of components that are available on a commercial scale, thereby making it industrially relevant.
营养成本是生物质发酵生产乙醇的一个重要方面。为了开发一种具有成本效益的发酵培养基，评估了几种工业上可用的营养源在酿酒酵母D5A对预处理杨树进行同步糖化发酵中的有效性。这些研究表明，含有0.3%玉米浆和2.5 mM七水硫酸镁的低成本培养基在性能上与营养丰富的培养基相似。除了成本低之外，这种替代培养基的成分在商业规模上可得，因此具有工业相关性。
