The Effect of KMnO4 and K3[Fe(CN)6] Concentrations on Electrical Production in Fuel Cell Microbial System with Lactobacillus bulgaricus Bacteria in a Tofu Whey Substart

Ilmi Muftiana; Linda Suyati; Didik Setiyo Widodo

doi:10.14710/jksa.21.1.49-53

DOI: https://doi.org/10.14710/jksa.21.1.49-53

The Effect of KMnO4 and K3[Fe(CN)6] Concentrations on Electrical Production in Fuel Cell Microbial System with Lactobacillus bulgaricus Bacteria in a Tofu Whey Substart

Ilmi Muftiana, Linda Suyati

, Didik Setiyo Widodo

Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University, Indonesia

Published: 31 Jan 2018.

BibTex Citation Data :

@article{JKSA18558,
    author = {Ilmi Muftiana and Linda Suyati and Didik Widodo},
    title = {The Effect of KMnO4 and K3[Fe(CN)6] Concentrations on Electrical Production in Fuel Cell Microbial System with Lactobacillus bulgaricus Bacteria in a Tofu Whey Substart},
    journal = {Jurnal Kimia Sains dan Aplikasi},
  volume = {21},
    number = {1},
    year = {2018},
    keywords = {Microbial Fuel Cell (MFC); tofu whey; Lactobacillus bulgaricus; KMnO4; K3[Fe(CN)6]},
    abstract = {Microbial Fuel Cell (MFC) is a bioelectrochemical system that utilize metabolism of microorganisms to produce electrical energy. Microbial fuel cell is a bioelectrochemical system involving redox reactions that required an oxidizing agent in the process The purpose of this study was to determine the effect of various concentration of electrolyte solution KMnO 4  and K 3 [Fe(CN) 6 ] on electricity produced by microbial fuel cell system with  Lactobacillus bulgaricus  in tofu whey substrate. The principle of this study was bioelectrochemistry that changes chemical energy into electrical energy which involves a redox reaction by utilizing microbes. This study used a microbe  Lactobacillus bulgaricus  and substrate tofu whey with 0.39 % carbohydrate content in dual chamber MFC system using a salt bridge as a conductor of protons from anode to cathode. Anode compartment contains a mixture of microbes that have been cultured and phosphate buffer with pH 7 while cathode compartment contained electrolytes KMnO 4  or K 3 [Fe(CN) 6 ] in some various concentration that is 0.25 M; 0.2 M; 0.15 M; 0.1 M and 0.01 M with added potassium phosphate buffer pH 7. The MFC system using  Lactobacillus bulgaricus  and substrate tofu whey with 0.39% carbohydrate content and electrolyte solution KMnO 4  generated maximum potential difference of 99.2 mV at concentration of 0.2 M which was higher than system with electrolyte solution K 3 [Fe(CN) 6 ] 0.2 M that produced maximum potential difference of 48.6 mV.},
   issn = {2597-9914},   pages = {49--53}  doi = {10.14710/jksa.21.1.49-53},
    url = {https://ejournal.undip.ac.id/index.php/ksa/article/view/18558}
}

Citation Format:

Abstract

Microbial Fuel Cell (MFC) is a bioelectrochemical system that utilize metabolism of microorganisms to produce electrical energy. Microbial fuel cell is a bioelectrochemical system involving redox reactions that required an oxidizing agent in the process The purpose of this study was to determine the effect of various concentration of electrolyte solution KMnO₄ and K₃[Fe(CN)₆] on electricity produced by microbial fuel cell system with Lactobacillus bulgaricus in tofu whey substrate. The principle of this study was bioelectrochemistry that changes chemical energy into electrical energy which involves a redox reaction by utilizing microbes. This study used a microbe Lactobacillus bulgaricus and substrate tofu whey with 0.39 % carbohydrate content in dual chamber MFC system using a salt bridge as a conductor of protons from anode to cathode. Anode compartment contains a mixture of microbes that have been cultured and phosphate buffer with pH 7 while cathode compartment contained electrolytes KMnO₄ or K₃[Fe(CN)₆] in some various concentration that is 0.25 M; 0.2 M; 0.15 M; 0.1 M and 0.01 M with added potassium phosphate buffer pH 7. The MFC system using Lactobacillus bulgaricus and substrate tofu whey with 0.39% carbohydrate content and electrolyte solution KMnO₄ generated maximum potential difference of 99.2 mV at concentration of 0.2 M which was higher than system with electrolyte solution K₃[Fe(CN)₆] 0.2 M that produced maximum potential difference of 48.6 mV.

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Keywords: Microbial Fuel Cell (MFC); tofu whey; Lactobacillus bulgaricus; KMnO4; K3[Fe(CN)6]

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Section: Research Articles

Language : EN

In Vol 21, No 1 (2018): Volume 21 Issue 1 Year 2018

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