Chitin biomass powered microbial fuel cell for electricity production using halophilic Bacillus circulans BBL03 isolated from sea salt harvesting area

Gurav, Ranjit; Bhatia, Shashi Kant; Choi, Taekjib; Jung, Hye-Rim; Yang, Seun-Ah; Song, Hun-Suk; Kim, Hwang-Phill; Han, Yujia; Park, Jun-Young; Kim, Yun‐Gon; Choi, Kwon‐Young; Yang, Yung‐Hun

doi:10.1016/j.bioelechem.2019.107329

Cited by 35 publications

(26 citation statements)

References 46 publications

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“…Previous reports showed that the chitinolytic bacteria Aeromonas hydrophila and Bacillus circulans can be used in microbial fuel cells for electricity generation. [5,6]. In other applications, accelerating the biodegradation of chitin will not only reduce pollution but also produce high-value products [7], as chitin wastes can be conveniently degraded (which was not certified by peer review) is the author/funder.…”

Section: Introductionmentioning

confidence: 99%

Vibrio campbellii chitoporin: Thermostability study and implications for the development of therapeutic agents against Vibrio infections

Aunkham

Schulte

Sim

et al. 2020

International Journal of Biological Macromolecules

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Vibrio campbellii (formerly Vibrio harveyi) is a bacterial pathogen that causes vibriosis, which devastates fisheries and aquaculture worldwide. V. campbellii expresses chitinolytic enzymes and chitin binding/transport proteins, which serve as excellent targets for antimicrobial agent development. We previously characterized VhChiP, a chitooligosaccharide-specific porin from the outer membrane of V. campbellii BAA-1116. This study employed far-UV circular dichroism and tryptophan fluorescence spectroscopy, together with single channel electrophysiology to demonstrate that the strong binding of chitoligosaccharides enhanced thermal stability of VhChiP. The alanine substitution of Trp 136 at the center of the affinity sites caused a marked decrease in the binding affinity and decreased the thermal stability of VhChiP. Tryptophan fluorescence titrations over a range of temperatures showed greater free-energy changes on ligand binding (Gbinding) with increasing chain length of the chitooligosaccharides. Our findings suggest the possibility of designing stable channel-blockers, using sugar-based analogs that serve as antimicrobial agents, active against Vibrio infection.

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Section: Introductionmentioning

confidence: 99%

Vibrio campbellii chitoporin: Thermostability study and implications for the development of therapeutic agents against Vibrio infections

Aunkham

Schulte

Sim

et al. 2020

International Journal of Biological Macromolecules

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“…The production of electrons to the metabolism of microorganisms produces bioelectricity (Gurav et al, 2019). The microbial fuel cell is used to produce electricity from the hydrolysis and fermentation of algae.…”

Section: Microalgae-microbial Fuel Cell (Mmfc)mentioning

confidence: 99%

Valorization of Wastewater Resources Into Biofuel and Value-Added Products Using Microalgal System

et al. 2021

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Wastewater is not a liability, instead considered as a resource for microbial fermentation and value-added products. Most of the wastewater contains various nutrients like nitrates and phosphates apart from the organic constituents that favor microbial growth. Microalgae are unicellular aquatic organisms and are widely used for wastewater treatment. Various cultivation methods such as open, closed, and integrated have been reported for microalgal cultivation to treat wastewater and resource recovery simultaneously. Microalgal growth is affected by various factors such as sunlight, temperature, pH, and nutrients that affect the growth rate of microalgae. Microalgae can consume urea, phosphates, and metals such as magnesium, zinc, lead, cadmium, arsenic, etc. for their growth and reduces the biochemical oxygen demand (BOD). The microalgal biomass produced during the wastewater treatment can be further used to produce carbon-neutral products such as biofuel, feed, bio-fertilizer, bioplastic, and exopolysaccharides. Integration of wastewater treatment with microalgal bio-refinery not only solves the wastewater treatment problem but also generates revenue and supports a sustainable and circular bio-economy. The present review will highlight the current and advanced methods used to integrate microalgae for the complete reclamation of nutrients from industrial wastewater sources and their utilization for value-added compound production. Furthermore, pertaining challenges are briefly discussed along with the techno-economic analysis of current pilot-scale projects worldwide.

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“…The electricity production could be enhanced by using substrates of precise size, and slowly degradable substrates. The substrates of precise size enhance the degradation surface area, and the slowly degradable substrates enhance the power production duration [ 146 ].…”

Section: Performance Of Bmfc Affected By Organic Substratementioning

confidence: 99%

Insights into Advancements and Electrons Transfer Mechanisms of Electrogens in Benthic Microbial Fuel Cells

et al. 2020

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Benthic microbial fuel cells (BMFCs) are a kind of microbial fuel cell (MFC), distinguished by the absence of a membrane. BMFCs are an ecofriendly technology with a prominent role in renewable energy harvesting and the bioremediation of organic pollutants through electrogens. Electrogens act as catalysts to increase the rate of reaction in the anodic chamber, acting in electrons transfer to the cathode. This electron transfer towards the anode can either be direct or indirect using exoelectrogens by oxidizing organic matter. The performance of a BMFC also varies with the types of substrates used, which may be sugar molasses, sucrose, rice paddy, etc. This review presents insights into the use of BMFCs for the bioremediation of pollutants and for renewable energy production via different electron pathways.

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Chitin biomass powered microbial fuel cell for electricity production using halophilic Bacillus circulans BBL03 isolated from sea salt harvesting area

Cited by 35 publications

References 46 publications

Vibrio campbellii chitoporin: Thermostability study and implications for the development of therapeutic agents against Vibrio infections

Vibrio campbellii chitoporin: Thermostability study and implications for the development of therapeutic agents against Vibrio infections

Valorization of Wastewater Resources Into Biofuel and Value-Added Products Using Microalgal System

Insights into Advancements and Electrons Transfer Mechanisms of Electrogens in Benthic Microbial Fuel Cells

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