Abstract：
Background:Microbial fuel cell (MFC) convokes microorganism to convert biomass into electricity. However, most well-known electrogenic strains cannot directly use glucose to produce valuable products. Zymomonas mobilis, a promising bacterium for ethanol production, owns special Entner-Doudoroff pathway with less ATP and biomass produced and the low-energy coupling respiration, making Z. mobilis a potential exoelectrogen. Results:A glucose-consuming MFC is constructed by inoculating Z. mobilis. The electricity with power density 2.0 mW/m2 is derived from the difference of oxidation-reduction potential (ORP) between anode and cathode chambers. Besides, two-type electricity generation is observed as glucose-independent process and glucose-dependent process. For the sake of enhancing MFC efficiency, extracellular and intracellular strategies are implemented. Biofilm removal and addition of c-type cytochrome benefit electricity performance and Tween 80 accelerates the electricity generation. Perturbation of cellular redox balance compromises the electricity output, indicating that redox homeostasis is the principal requirement to reach ideal voltage. Conclusion:This study identifies potential feature of electricity activity for Z. mobilis and provides multiple strategies to enhance the electricity output. Therefore, additional electricity generation will benefit the techno-economic viability of the commercial bulk production for biochemicals or biofuels in an efficient and environmentally sustainable manner.
journal_name
Biotechnol Biofuelsjournal_title
Biotechnology for biofuelsauthors
Geng BY,Cao LY,Li F,Song H,Liu CG,Zhao XQ,Bai FWdoi
10.1186/s13068-020-01672-5subject
Has Abstractpub_date
2020-03-05 00:00:00pages
36issn
1754-6834pii
1672journal_volume
13pub_type
杂志文章abstract：BACKGROUND:Butanol is not only an important solvent and chemical intermediate in food and pharmaceutical industries, but also considered as an advanced biofuel. Recently, there have been resurging interests in producing biobutanol especially using low-cost lignocellulosic biomass, but the process still suffers from low...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0566-2
更新日期：2016-07-19 00:00:00
abstract：BACKGROUND:Separating acidification and methanogenic steps in anaerobic digestion processes can help to optimize the process and contribute to producing valuable sub-products such as methane, hydrogen and organic acids. However, the full potential of this technology has not been fully explored yet. To assess the underl...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0859-0
更新日期：2017-07-03 00:00:00
abstract：BACKGROUND:Renewable energy production is currently a major issue worldwide. Biogas is a promising renewable energy carrier as the technology of its production combines the elimination of organic waste with the formation of a versatile energy carrier, methane. In consequence of the complexity of the microbial communiti...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-5-41
更新日期：2012-07-12 00:00:00
abstract：BACKGROUND:Production of biofuels from microalgae has been recognized to be a promising route for a sustainable energy supply. However, the microalgae harvesting process is a bottleneck for industrialization because it is energy intensive. Thus, by displaying interactive protein factors on the cell wall, oleaginous mic...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-015-0406-9
更新日期：2016-01-13 00:00:00
abstract：UNLABELLED: BACKGROUND:Industrial production of biofuels and other products by cellulolytic microorganisms is of interest but hindered by the nascent state of genetic tools. Although a genetic system for Clostridium thermocellum DSM1313 has recently been developed, available methods achieve relatively low efficiency a...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-5-30
更新日期：2012-05-06 00:00:00
abstract：BACKGROUND:Microbial synthesis of oleochemicals derived from native fatty acid (FA) metabolism has presented significant advances in recent years. Even so, native FA biosynthetic pathways often provide a narrow variety of usually linear hydrocarbons, thus yielding end products with limited structural diversity. To over...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0631-x
更新日期：2016-10-14 00:00:00
abstract：BACKGROUND:Accumulation of recalcitrant oligosaccharides during high-solids loading enzymatic hydrolysis of cellulosic biomass reduces biofuel yields and increases processing costs for a cellulosic biorefinery. Recalcitrant oligosaccharides in AFEX-pretreated corn stover hydrolysate accumulate to the extent of about 18...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-015-0378-9
更新日期：2015-11-26 00:00:00
abstract：BACKGROUND:Glycoside hydrolases are important for various industrial and scientific applications. Determination of their temperature as well as pH optima and range is crucial to evaluate whether an enzyme is suitable for application in a biotechnological process. These basic characteristics of enzymes are generally det...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0923-9
更新日期：2017-10-11 00:00:00
abstract：Background:Icariside D2 is a plant-derived natural glycoside with pharmacological activities of inhibiting angiotensin-converting enzyme and killing leukemia cancer cells. Production of icariside D2 by plant extraction and chemical synthesis is inefficient and environmentally unfriendly. Microbial cell factory offers a...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1601-x
更新日期：2019-11-06 00:00:00
abstract：Background:Bioelectrochemical systems (BESs) harness electrons from microbial respiration to generate power or chemical products from a variety of organic feedstocks, including lignocellulosic biomass, fermentation byproducts, and wastewater sludge. In some BESs, such as microbial fuel cells (MFCs), bacteria living in ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-018-1111-2
更新日期：2018-04-23 00:00:00
abstract：BACKGROUND:Microalgae accumulate a considerable amount of lipids and carbohydrate under nutrient-deficient conditions, which makes them one of the promising sustainable resources for biofuel production. In the present study, to obtain the biomass with higher lipid and carbohydrate contents, we implemented a short-term ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0747-7
更新日期：2017-03-09 00:00:00
abstract：Background:The extremely thermophilic bacterium Caldicellulosiruptor lactoaceticus can degrade and metabolize untreated lignocellulosic biomass containing xylan. The mechanism of the bacterium for degradation of insoluble xylan in untreated biomass has not been revealed. Results:In the present study, the only annotate...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-019-1480-1
更新日期：2019-06-08 00:00:00
abstract：BACKGROUND:Microbial lipid production represents a potential alternative feedstock for the biofuel and oleochemical industries. Since Escherichia coli exhibits many genetic, technical, and biotechnological advantages over native oleaginous bacteria, we aimed to construct a metabolically engineered E. coli strain capabl...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-014-0172-0
更新日期：2014-12-24 00:00:00
abstract：BACKGROUND:Renewable chemicals have attracted attention due to increasing interest in environmental concerns and resource utilization. Biobased production of industrial compounds from nonfood biomass has become increasingly important as a sustainable replacement for traditional petroleum-based production processes depe...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-021-01878-1
更新日期：2021-01-19 00:00:00
abstract：BACKGROUND:Development of biofuels is considered as one of the important ways to replace conventional fossil energy and mitigate climate change. However, rapid increase of biofuel production could cause other environmental concerns in China such as water stress. This study is intended to evaluate the life-cycle water f...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0778-0
更新日期：2017-04-18 00:00:00
abstract：BACKGROUND:Production of valuable metabolites by Yarrowia lipolytica using renewable raw materials is of major interest for sustainable food and energy. Galactose is a monosaccharide found in galactomannans, hemicelluloses, gums, and pectins. RESULTS:Yarrowia lipolytica was found to express all the Leloir pathway gene...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-015-0370-4
更新日期：2015-11-25 00:00:00
abstract：BACKGROUND:Although lignin peroxidase is claimed as a key enzyme in enzyme-catalyzed lignin degradation, in vitro enzymatic degradation of lignin was not easily observed in lab-scale experiments. It implies that other factors may hinder the enzymatic degradation of lignin. Irreversible interaction between phenolic comp...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0664-1
更新日期：2016-11-15 00:00:00
abstract：BACKGROUND:Contamination of corn mash by lactic acid bacteria (LAB) reduces the efficiency of the ethanol fermentation process. The industry relies heavily on antibiotics for contamination control and there is a need to develop alternative methods. The goals of this study were to determine the diversity and abundance o...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-015-0325-9
更新日期：2015-09-04 00:00:00
abstract：UNLABELLED: BACKGROUND:Recent studies demonstrate that enzymes from the glycosyl hydrolase family 61 (GH61) show lytic polysaccharide monooxygenase (PMO) activity. Together with cellobiose dehydrogenase (CDH) an enzymatic system capable of oxidative cellulose cleavage is formed, which increases the efficiency of cellu...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-5-79
更新日期：2012-10-26 00:00:00
abstract：BACKGROUND:Lipid/carbohydrate content and ratio are extremely important when engineering algal cells for liquid biofuel production. However, conventional methods for such determination and quantification are not only destructive and tedious, but also energy consuming and environment unfriendly. In this study, we first ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0691-y
更新日期：2017-01-03 00:00:00
abstract：BACKGROUND:Replacing the energy-intensive evaporation of stillage by anaerobic digestion is one way of decreasing the energy demand of the lignocellulosic biomass to the ethanol process. The biogas can be upgraded and sold as transportation fuel, injected directly into the gas grid or be incinerated on-site for combine...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-3-21
更新日期：2010-09-15 00:00:00
abstract：Background:n-Butyraldehyde is a high-production volume chemical produced exclusively from hydroformylation of propylene. It is a versatile chemical used in the synthesis of diverse C4-C8 alcohols, carboxylic acids, esters, and amines. Its high demand and broad applications make it an ideal chemical to be produced from ...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-017-0978-7
更新日期：2017-12-04 00:00:00
abstract：BACKGROUND:Solid-state anaerobic digestion (SS-AD) has been increasingly used for lignocellulosic biomass treatment. However, the separate reactor required for pretreatment prior digestion, poor treatment capacity, and process stability inhibit further development of the SS-AD. In this study, a novel method called SS-A...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-016-0530-1
更新日期：2016-06-01 00:00:00
abstract：:Microalgae hold great promises as sustainable cellular factories for the production of alternative fuels, feeds, and biopharmaceuticals for human health. While the biorefinery approach for fuels along with the coproduction of high-value compounds with industrial, therapeutic, or nutraceutical applications have the pot...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章,评审
doi：10.1186/s13068-019-1635-0
更新日期：2019-12-23 00:00:00
abstract：BACKGROUND:Non-productive cellulase adsorption onto lignin has always been deemed to negatively affect the enzymatic hydrolysis of lignocellulosic feedstocks. Therefore, understanding enzyme-lignin interactions is essential for the development of enzyme mixtures, the processes of lignocellulose hydrolysis, and the gene...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-7-38
更新日期：2014-03-14 00:00:00
abstract：BACKGROUND:To make lignocellulosic fuel ethanol economically competitive with fossil fuels, it is necessary to reduce the production cost. One way to achieve this is by increasing the substrate concentration in the production process, and thus reduce the energy demand in the final distillation of the fermentation broth...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-3-14
更新日期：2010-06-25 00:00:00
abstract：Background:Cyanobacteria can be metabolically engineered to convert CO2 to fuels and chemicals such as ethylene. A major challenge in such efforts is to optimize carbon fixation and partition towards target molecules. Results:The efe gene encoding an ethylene-forming enzyme was introduced into a strain of the cyanobac...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-020-1653-y
更新日期：2020-01-28 00:00:00
abstract：Background:Functional sugar alcohols have been widely used in the food, medicine, and pharmaceutical industries for their unique properties. Among these, erythritol is a zero calories sweetener produced by the yeast Yarrowia lipolytica. However, in wild-type strains, erythritol is produced with low productivity and yie...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-020-01815-8
更新日期：2020-10-20 00:00:00
abstract：BACKGROUND:The recalcitrance of lignocellulosic biomass is a major limitation for its conversion into biofuels by enzymatic hydrolysis. The use of a pretreatment technology is an essential step to diminish biomass recalcitrance for bioethanol production. In this study, a two-step pretreatment using hydrothermal pretrea...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/s13068-014-0116-8
更新日期：2014-08-20 00:00:00
abstract：BACKGROUND:Oxygenic photosynthetic microorganisms such as cyanobacteria and microalgae have attracted attention as an alternative carbon source for the next generation of biofuels. Glycogen abundantly accumulated in cyanobacteria is a promising feedstock which can be converted to ethanol through saccharification and fe...
journal_title：Biotechnology for biofuels
pub_type： 杂志文章
doi：10.1186/1754-6834-7-88
更新日期：2014-06-11 00:00:00
