High-efficient production of biobutanol by a novel Clostridium sp. strain WST with uncontrolled pH strategy

Bioresource Technology
Sabarathinam ShanmugamYi-Rui Wu

Abstract

A novel Clostridium sp. strain WST isolated from mangrove sediments demonstrated its unique characteristics of producing high titer of biobutanol from low concentration of substrates via anaerobic fermentation. The strain is able to convert glucose and galactose to high amount of biobutanol up to 16.62 and 12.11 g/L, respectively, and the yields of 0.54 and 0.55 g/g were determined to be much higher than those from the previous reports on Clostridial batch fermentation. Moreover, the inherent strong regulatory system of strain WST also prompts itself to perform the fermentation process without any requirement of pH control. In addition to tolerance of high butanol concentration and negligible production of by-products (e.g., ethanol or acids), this strain has immense potential for the sustainable industry-scale production of biobutanol.

Citations

Mar 19, 2019·Water Environment Research : a Research Publication of the Water Environment Federation·Youzhao WangTong Zhu
Sep 27, 2018·Biotechnology for Biofuels·Fengxue XinMin Jiang
Jan 5, 2021·Frontiers in Bioengineering and Biotechnology·Bin ZhangXiao-Yu Wu
Aug 1, 2020·Journal of Environmental Management·Surbhi SharmaTejraj M Aminabhavi

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