Synergistic of yeast Saccharomyces cerevisiae and glucose oxidase enzyme as co-biocatalyst of enzymatic microbial fuel cell (EMFC) in converting sugarcane bagasse extract into electricity

Journal of Electrochemical Science and Engineering

article

Marcelinus Christwardana¹  J. Joelianingsih²  Linda Aliffia Yoshi² 

[1] Department of Chemistry, Diponegoro University, Jl. Prof. Sudarto SH, Tembalang, Semarang, Central Java 50275;Department of Chemical Engineering, Institut Teknologi Indonesia

关键词: Bioelectricity;    fuel cells;    enzymes;    sustainable energy;   

DOI  :  10.5599/jese.1559

学科分类：内科医学

来源: International Association of Physical Chemists (IAPC)

【 摘 要 】

The microbial fuel cell (MFC) is an ecologically friendly alternative energy source. Due to the typically limited electron transfer in MFC systems, co-biocatalysts are necessary to enhance their performance. Enzymes are used as co-biocatalysts due to their superior ability to generate energy, and the system is known as an enzymatic microbial fuel cell (EMFC). One of the substrates that may be used is bagasse waste extracted from sugarcane. Saccharo­myces cerevisiae and the enzyme glucose oxidase (GOx) serve as co-biocatalysts in the breakdown of sugarcane bagasse waste in this study, which uses single-chamber EMFCs. In EMFC using sugarcane bagasse waste extract employing S. cerevisiae biocatalyst and glucose oxidase enzyme co-biocatalyst, the open circuit voltage was 0.56 V and the maximum power density was 146.65 mW m-2, an increase of 10.4 times to MFCs that solely employed only yeast biocatalyst. In addition, the chemical oxygen demand (COD) reduction achieved by this technology is 75 %. In addition, the pH of sugarcane bagasse waste extract samples treated with Saccharomyces cerevisiae yeast and GOx enzyme decreased from 4.6 to 4.2. This research demonstrates that adding the co-biocatalyst GOx enzyme may boost the performance of the traditional yeast MFC.

【 授权许可】

CC BY