Birgen Cansu, Dürre Peter, Preisig Heinz A, Wentzel Alexander
1Department of Chemical Engineering, NTNU, 7491 Trondheim, Norway.
2Institute of Microbiology and Biotechnology, Ulm University, 89069 Ulm, Germany.
Biotechnol Biofuels. 2019 Jun 28;12:167. doi: 10.1186/s13068-019-1508-6. eCollection 2019.
After just more than 100 years of history of industrial acetone-butanol-ethanol (ABE) fermentation, patented by Weizmann in the UK in 1915, butanol is again today considered a promising biofuel alternative based on several advantages compared to the more established biofuels ethanol and methanol. Large-scale fermentative production of butanol, however, still suffers from high substrate cost and low product titers and selectivity. There have been great advances the last decades to tackle these problems. However, understanding the fermentation process variables and their interconnectedness with a holistic view of the current scientific state-of-the-art is lacking to a great extent. To illustrate the benefits of such a comprehensive approach, we have developed a dataset by collecting data from 175 fermentations of lignocellulosic biomass and mixed sugars to produce butanol that reported during the past three decades of scientific literature and performed an exploratory data analysis to map current trends and bottlenecks. This review presents the results of this exploratory data analysis as well as main features of fermentative butanol production from lignocellulosic biomass with a focus on performance indicators as a useful tool to guide further research and development in the field towards more profitable butanol manufacturing for biofuel applications in the future.
在工业丙酮 - 丁醇 - 乙醇(ABE)发酵拥有100多年历史后(1915年由魏茨曼在英国获得专利),与更成熟的生物燃料乙醇和甲醇相比,丁醇如今因其若干优势再次被视为一种有前景的生物燃料替代品。然而,丁醇的大规模发酵生产仍面临底物成本高、产物滴度和选择性低的问题。在过去几十年里为解决这些问题已取得了巨大进展。然而,在很大程度上缺乏从当前科学技术水平的整体视角来理解发酵过程变量及其相互关联性。为了说明这种综合方法的益处,我们通过收集过去三十年科学文献中报道的175次木质纤维素生物质和混合糖发酵生产丁醇的数据,开发了一个数据集,并进行了探索性数据分析以描绘当前趋势和瓶颈。本综述展示了此次探索性数据分析的结果以及从木质纤维素生物质发酵生产丁醇的主要特征,重点关注性能指标,作为指导该领域未来进一步研发以实现更具盈利性的生物燃料应用丁醇制造的有用工具。