Abstract：
:Microbial fuel cells (MFCs) have emerged as a promising technology for sustainable wastewater treatment coupled with electricity generation. A MFC is a device that uses microbes as catalysts to convert chemical energy present in biomass into electrical energy. Among the various mechanisms that drive the operation of a MFC, extracellular electron transfer (EET) to the anode is one of the most important. Exoelectrogenic bacteria can natively transfer electrons to a conducting surface like the anode. The mechanisms employed for electron transfer can either be direct transfer via conductive pili or nanowires, or mediated transfer that involves either naturally secreted redox mediators like flavins and pyocyanins or artificially added mediators like methylene blue and neutral red. EET is a mechanism wherein microorganisms extract energy for growth and maintenance from their surroundings and transfer the resulting electrons to the anode to generate current. The efficiency of these electron transfer mechanisms is dependent not only on the redox potentials of the species involved, but also on microbial oxidative metabolism that liberates electrons. Attempts at understanding the electron transfer mechanisms will boost efforts in giving rise to practical applications. This article covers the various electron transfer mechanisms involved between microbes and electrodes in microbial fuel cells and their applications.
journal_name
World J Microbiol Biotechnoljournal_title
World journal of microbiology & biotechnologyauthors
Aiyer KSdoi
10.1007/s11274-020-2801-zsubject
Has Abstractpub_date
2020-01-18 00:00:00pages
19issue
2eissn
0959-3993issn
1573-0972pii
10.1007/s11274-020-2801-zjournal_volume
36pub_type
杂志文章,评审abstract：:Dehydration of yeast cells causes them to enter a state of anhydrobiosis in which their metabolism is temporarily and reversibly suspended. This unique state among organisms is currently used in the production of active dry yeasts, mainly used in baking and winemaking. In recent decades non-conventional applications o...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-016-2058-8
更新日期：2016-06-01 00:00:00
abstract：:The aim of this study was to investigate the space mutagenesis of genetically engineered bacteria expressing recombinant human interferon α1b. The genetically engineered bacteria expressing the recombinant interferon α1b were sent into outer space on the Chinese Shenzhou VIII spacecraft. After the 17 day space flight,...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-013-1512-0
更新日期：2014-03-01 00:00:00
abstract：:In the present study, the biosynthesis of silver nanoparticles (AgNPs) using Neurospora intermedia, as a new non-pathogenic fungus was investigated. For determination of biomass harvesting time, the effect of fungal incubation period on nanoparticle formation was investigated using UV-visible spectroscopy. Then, AgNPs...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-013-1417-y
更新日期：2014-02-01 00:00:00
abstract：:Alkaliphilic halotolerant cyanobacterium Aphanothece halophytica showed optimal growth in the medium containing 0.5 M NaCl. The increase of exogenously added glycine to the medium up to 10 mM significantly promoted cell growth under both normal (0.5 M NaCl) and salt stress (2.0 M NaCl) conditions. Salt stress imposed ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1790-1
更新日期：2015-02-01 00:00:00
abstract：:In this study, we developed a novel technique for preparing polyvinyl alcohol (PVA) hydrogel as an immobilizing matrix by the addition of sodium bicarbonate. This resulted in an increase in the specific surface area of PVA_sodium bicarbonate (PVA_SB) hydrogel beads to 65.23 m(2) g(-1) hydrogel beads, which was approxi...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1621-4
更新日期：2014-07-01 00:00:00
abstract：:The experiment was conducted in three model drinking water distribution systems (DWDSs) made of unplasticized polyvinyl chloride (PVC), silane cross-linked polyethylene (PEX) and high density polyethylene (HDPE) pipes to which tap water was introduced. After 2 years of system operation, microbial communities in the DW...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1761-6
更新日期：2015-01-01 00:00:00
abstract：:The following is a Technical Information Sheet of the World Federation for Culture Collections and appears here with the permission of the WFCC's Education Committee. ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF01202132
更新日期：1990-12-01 00:00:00
abstract：:Kaolin is an important industrial raw material and a basis of a range of different products. Microbial spoilage is a detrimental process observed especially in kaolin slurries, leading to low quality products and economic loss. Although the alteration of kaolin slurries in ceramic industry was observed, the process an...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-011-0976-z
更新日期：2012-04-01 00:00:00
abstract：:Rice bran was superior to other proteinaceous substrates for protease production by Rhizopus oligosporus ACM 145F in solid-state fermentation. Maximum protease yield was after 72 h. The optimal initial moisture content was 47% (a w=0.97). Dried, ground and resuspended fermented rice was the most pratical and effective...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF00414872
更新日期：1994-05-01 00:00:00
abstract：:Endophytes are recognised as potential sources of novel secondary metabolites, including enzymes and drugs, with applications in medicine, agriculture and industry. There is a growing need for new enzymes, including proteases, for use in industry that can function under a variety of conditions. In this study, three fu...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1598-z
更新日期：2014-06-01 00:00:00
abstract：:Growth at 25°C and pH 5.50 favour the production ofβ-glucosidase. De-fatted oilseed flour and Tween 80 enhanced the production ofβ-glucosidase, Lactose, gentibiose, gentibiose-acetate, laminarabiose and xylobiose inducedβ-glucosidase activity. Precipitation of the culture filtrate with (NH4)2SO4 resulted in 26-fold pu...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF02310911
更新日期：1991-01-01 00:00:00
abstract：:The establishment of safe and effective methods for controlling fungal disease is an urgent issue in agriculture and forestry. Microbiological control of plant disease is expected to achieve better results than use of chemically derived fungicides. This study aimed to establish Brevibacillus laterosporus JX-5 as a pot...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-015-1912-4
更新日期：2015-10-01 00:00:00
abstract：:Biofilm formation can make significant effects on bacteria habits and biological functions. In this study, diketopiperazines (DKPs) produced by strain of Bacillus amyloliquefaciens Q-426 was found to inhibit biofilm formed in the gas-liquid interface. Four kinds of DKPs were extracted from B. amyloliquefaciens Q-426, ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-016-2106-4
更新日期：2016-09-01 00:00:00
abstract：:Orange juice is a major agricultural product, and oranges are among the most widely sold fresh fruits in several countries. Citrus black spot (CBS), caused by the fungus Phyllosticta citricarpa, affects almost every species of citrus, causing a esthetic depreciation of the fruit and fruit drop, with consequent financi...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-019-2772-0
更新日期：2019-12-16 00:00:00
abstract：:Terpenoids are a large class of compounds that have far-reaching applications and economic value, particularly those most commonly found in plants; however, the extraction and synthesis of these compounds is often expensive and technically challenging. Recent advances in microbial metabolic engineering comprise a brea...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-015-1975-2
更新日期：2016-01-01 00:00:00
abstract：:Menaquinone (MK) was an attractive membrane-bound intracellular chemical. To enhance its production, we tried to find the relationship between its synthesis and the state of cell membrane in producing strain. Due to non-ionic surfactant-polyoxyethylene oleyl ether (POE) and plant oil-cedar wood oil (CWO) can typically...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-017-2222-9
更新日期：2017-03-01 00:00:00
abstract：:Cultural tourism expanded in the last half of the twentieth century, and the interest of visitors has come to include caves containing archaeological remains. Some show caves attracted mass tourism, and economical interests prevailed over conservation, which led to a deterioration of the subterranean environment and t...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-012-1070-x
更新日期：2012-07-01 00:00:00
abstract：:Bacillus subtilis, isolated from tannery waste, produced an alkaline protease at optimal activity when grown in a casein/gelatine medium in a stirred tank fermenter at 37°C with the dissolved oxygen tension at 40% air saturation. Optimum protease activity (223 U ml(-1)) was at pH 8.5 and was stable for 1 h up to 45°C ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF00360930
更新日期：1996-05-01 00:00:00
abstract：:The capacity of different naphthoquinones to inhibit and eradicate Yersinia enterocolitica biofilm was investigated and possible mechanisms of action were evaluated. Inhibition of biofilm formation and cell viability, quorum sensing (QS) inhibition and oxidative stress generation of 23 naphthoquinones were assayed aga...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-020-02971-7
更新日期：2021-01-18 00:00:00
abstract：:Anaerobic digestion (AD) is the most popular path of organic waste disposal. It is often used in wastewater treatment plants for excessive sludge removal. Methanogenic fermentation had usually been performed under mesophilic conditions, but in the past few years the thermophilic processes have become more popular due ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-014-1731-z
更新日期：2014-12-01 00:00:00
abstract：:This paper aims to characterize halophilic bacteria inhabiting Algerian Saline Ecosystems (Sebkha and Chott) located in arid and semi-arid ecoclimate zones (Northeastern Algeria). In addition, screening of enzymatic activities, heavy metal tolerance and antagonistic potential against phytopathogenic fungi were tested....
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-019-2705-y
更新日期：2019-08-20 00:00:00
abstract：:The threat of heavy metal pollution to environmental health is getting worldwide attention due to their persistence and non-biodegradable nature. Ineffectiveness of various physicochemical methods due to economical and technical constraints resulted in the search for a cost-effective and eco-friendly biological techni...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-016-2117-1
更新日期：2016-10-01 00:00:00
abstract：:Listeria monocytogenes is a particular risk for the ready-to-eat food sector because of its ability to grow in various environmental conditions. In the literature, growth and survival of L. monocytogenes on food is tested using inoculation densities ranging from less than 102 to over 105 CFU g-1. Inoculation densities...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-017-2379-2
更新日期：2017-11-27 00:00:00
abstract：:Butanol is not only an important chemical intermediate and solvent in pharmaceutical and cosmetics industries, but also considered as an advanced biofuel. Although species of the natural host Clostridium have been engineered, butanol titers in the anaerobe seem to be limited by its intolerance to butanol less than 13 ...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-017-2246-1
更新日期：2017-04-01 00:00:00
abstract：:Paclitaxel is a highly toxic anticancer agent which is used in a wide range against ovarian, breast, lung, and prostate cancers. Paclitaxel is manufactured recently in the north of Iran which may lead to the introduction of the drug into the environment via pharmaceutical wastewater. To our knowledge, Paclitaxel degra...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/s11274-016-2087-3
更新日期：2016-08-01 00:00:00
abstract：:Two Clostridium thermocellum strains were improved for ethanol tolerance, to 5% (v/v), by gradual adaptation and mutation. The best mutant gave an ethanol yield of 0.37 g/g substrate, with a growth yield 1.5 times more than its parent. Accumulation of acids and reducing sugars by the mutant strain with 5% (v/v) ethano...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF00327802
更新日期：1996-01-01 00:00:00
abstract：:Cobamides ('complete' corrinoids) are essential for organohalide-respiring bacteria because they act as cofactors of reductive dehalogenases (RDases). RDases are the key enzymes in organohalide respiration, a process relevant for environmental remediation. More than a decade ago, the unusual norpseudo-B12 was identifi...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-017-2258-x
更新日期：2017-05-01 00:00:00
abstract：:Siderophores are metal chelating secondary metabolites secreted by almost all organisms. Beside iron starvation, the ability to produce siderophores depends upon several other factors. Chemical structure of siderophore is very complex with vast structural diversity, thus the principle challenge involves its detection,...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-020-02955-7
更新日期：2020-10-31 00:00:00
abstract：:The fermentation of industrial bacteria encounters a serious problem in continuous culture, i.e. the production traits lose. However, current research on the mechanism of strain degeneration is not clear enough, and there are few methods to effectively control the degeneration. Under growth restriction, the mutation r...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章,评审
doi：10.1007/s11274-020-02901-7
更新日期：2020-07-18 00:00:00
abstract：:Tween 80 (0.1%, v/v) added to Thermomonospora curvata growing in minimal medium caused a transient lowering of the dry cell mass, decreased the optimal growth temperature of the thermophile from 62 to 54°C, and increased extracellular esterase activity. Cells grown in the presence of Tween 80 had decreased concentrati...
journal_title：World journal of microbiology & biotechnology
pub_type： 杂志文章
doi：10.1007/BF00327954
更新日期：1994-11-01 00:00:00
