气候变化领域集成服务门户(CCPortal): Power-to-protein: Converting renewable electric power and carbon dioxide into single cell protein with a two-stage bioprocess

CCPortal

DOI	10.1039/c9ee02381j
	Power-to-protein: Converting renewable electric power and carbon dioxide into single cell protein with a two-stage bioprocess
	Molitor B.; Mishra A.; Angenent L.T.
发表日期	2019
ISSN	17545692
起始页码	3515
结束页码	3521
卷号	12 期号:12
英文摘要	To prevent an environmental collapse while feeding a future human population of 10 billion people, dilute nitrogen in waste streams as a nitrogen source and carbon dioxide as a carbon source should be recovered and recycled into edible protein as part of the circular economy. For this to work, however, ample renewable electric power would be necessary to provide hydrogen from water electrolysis as an electron donor. We developed a two-stage bioprocessing system as part of a power-to-protein approach to fix carbon dioxide in a first stage by anaerobic acetogenic bacteria, and grow yeasts or fungi in a second stage under aerobic conditions with acetate as the intermediate metabolite. We were able to obtain a carbon yield of 25% as yeast biomass with a protein mass-fraction of ∼40-50% during a proof-of-concept experiment. We developed a technological solution to circumvent conventional agriculture for protein production, while still being able to provide protein for human consumption. © 2019 The Royal Society of Chemistry.
英文关键词	Aerobic bacteria; Carbon dioxide; Metabolites; Yeast; Acetogenic bacteria; Aerobic condition; Conventional agricultures; Intermediate metabolites; Protein production; Single cell proteins; Technological solution; Water electrolysis; Proteins; alternative energy; carbon dioxide; cell component; electrical power; electrokinesis; experimental study; oxic conditions; protein; Fungi
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189777
作者单位	Center for Applied Geosciences, University of Tübingen, Tübingen, 72074, Germany
推荐引用方式 GB/T 7714	Molitor B.,Mishra A.,Angenent L.T.. Power-to-protein: Converting renewable electric power and carbon dioxide into single cell protein with a two-stage bioprocess[J],2019,12(12).
APA	Molitor B.,Mishra A.,&Angenent L.T..(2019).Power-to-protein: Converting renewable electric power and carbon dioxide into single cell protein with a two-stage bioprocess.Energy & Environmental Science,12(12).
MLA	Molitor B.,et al."Power-to-protein: Converting renewable electric power and carbon dioxide into single cell protein with a two-stage bioprocess".Energy & Environmental Science 12.12(2019).