Bioresource Technology 249 (2018) 322–327 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech The chemostat metabolite spectra of alkaline mixed culture fermentation under mesophilic, thermophilic, and extreme-thermophilic conditions a,1 a,b,1 b b, Kun Dai , Fang Zhang , Yan Zhang , Raymond Jianxiong Zeng Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, Hebei 066004, People’s Republic of China CAS Key Laboratory for Urban Pollutant Conversion, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People’sRepublicofChina GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: Alkaline mixed culture fermentation (MCF) is a promising technology for reducing organic waste and producing Mixed culture fermentation biochemicals. However, chemostat metabolite spectra that are necessary for constructing a model and analyzing factors Alkaline areseldomreported. In thepresent study, theeﬀects of pH on the metabolites distribution in mesophilic (35 °C), Chemostat thermophilic (55 °C), and extreme-thermophilic (70 °C) alkaline MCF were demonstrated. A chemical oxygen demand Metabolic spectra balance above 80% was achieved, and the main metabolites included acetate, ethanol, propionate, lactate, and formate. Thermodynamic The yieldsofethanol andformate increasedaspHwas increased from7.5 to higher pH undermesophilicand ther- mophilic conditions, while the yields of acetate,
Bioresource Technology – Elsevier
Published: Feb 1, 2018
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