Abstract：
:Sewage sludge rich in carbohydrates and other nutrients could be a good feedstock for fuel/chemical production. In this study, fungal and engineered bacterial cultivations were integrated with a modified anaerobic digestion to accumulate fatty acids on sewage sludge. The anaerobic digestion was first adjusted to enable acetogenic bacteria to accumulate acetate. A fungus (Mortierella isabellina) and an engineered bacterium (Escherichia coli created by optimizing acetate utilization and fatty acid biosynthesis as well as overexpressing a regulatory transcription factor fadR) were then cultured on the acetate solution to accumulate fatty acids. The engineered bacterium had higher fatty acid yield and titer than the fungus. Both medium- and long-chain fatty acids (C12:0-C18:0) were produced by the engineered bacterium, while the fungus mainly synthesized long-chain fatty acids (C16:0-C18:3). This study demonstrated a potential path that combines fungus or engineered bacterium with anaerobic digestion to achieve simultaneous organic waste treatment and advanced biofuel production.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Liu Z,Ruan Z,Xiao Y,Yi Y,Tang YJ,Liao W,Liu Ydoi
10.1016/j.biortech.2013.01.017subject
Has Abstractpub_date
2013-03-01 00:00:00pages
166-70eissn
0960-8524issn
1873-2976pii
S0960-8524(13)00040-0journal_volume
132pub_type
杂志文章abstract：:Different pre-treatment severities by thermo-alkaline conditions (100°C, Ca(OH)2) on press mud were evaluated for different pre-treatment time and lime loading. COD solubilization and the methane yield enhancement were assessed. The biochemical methane potential was determined in batch assays under mesophilic conditio...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.12.167
更新日期：2013-03-01 00:00:00
abstract：:In the present work the preparation of biodiesel from Jatropha curcas L. oil produced by two-phase solvent extraction (TSE) was studied. The experimental results of TSE process showed that the optimal extraction conditions were 30 g samples, 240 mL of extraction solvent mixture and methanol/n-hexane volume ratio 60:40...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.04.018
更新日期：2010-09-01 00:00:00
abstract：:Effects of substrate-selective inoculum prepared by growing on glucose, xylose, arabinose, GXA (glucose, xylose, arabinose, 1:1:1) and corn stover hydrolyzate (dilute acid pretreated and enzymatically hydrolyzed, CSH) on ethanol production from CSH by a mixed sugar utilizing recombinant Escherichia coli (strain FBR5) ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2015.04.079
更新日期：2015-08-01 00:00:00
abstract：:The aim of this study were to efficiently produce fermentable sugars by continuous type supercritical water hydrolysis (SCWH) of Quercus mongolica at the pilot scale with varying acid catalyst loading and to use the obtained sugars for ethanol production. The SCWH of biomass was achieved in under one second (380°C, 23...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.08.058
更新日期：2017-12-01 00:00:00
abstract：:Reducing moisture in sewage sludge is one of the main goals of sewage sludge composting and biodrying. A mathematical model was used to simulate the performance of water removal under different aeration strategies. Additionally, the correlations between temperature, moisture content (MC), volatile solids (VS), oxygen ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.07.006
更新日期：2014-11-01 00:00:00
abstract：:The membrane fouling mechanism was studied in treating succinic acid fermentation broth during dead-end ultrafiltration. Different membranes were used and two models were applied to analyze the fouling mechanism. Resistance-in-series model was applied to determine the main factor that caused the operation resistance. ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.03.099
更新日期：2012-07-01 00:00:00
abstract：:The relative effects of three precise nitrogen limitation regimes on green micro-algae were assessed using the Trebouxiophycean alga Coccomyxa subellipsoidea grown in a chemostatic bioreactor system. The data provides further evidence that growth and triglyceride (TAG) accumulation are concurrent and independently pro...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.07.043
更新日期：2014-10-01 00:00:00
abstract：:The purpose of this study was to remove cadmium (Cd) and mercury (Hg) from non-point source wastewater by a hybrid bioreactor consisting of two different processes (anaerobic-anoxic-aerobic and photoautotrophic). The results showed that the bioreactor could concurrently culture heterotrophic and autotrophic microorgan...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2011.08.049
更新日期：2011-11-01 00:00:00
abstract：:Phanerochete chrysosporium, the white-rot fungus, (a best source for lignolytic enzymes system) was used in the biological pretreatment of rice husk for reducing sugars production. Usually reducing sugar production through biochemical process involves two steps: solid state fermentation (SSF) of fungal pretreatment fo...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.10.030
更新日期：2013-01-01 00:00:00
abstract：:An efficient production method of heme-iron-enriched peptide was developed based on enzymatic hydrolysis. Hemoglobin hydrolysis, carried out stepwise with commercially available exopeptidase and endopeptidase, resulted in an increased degree of hydrolysis (DH). Exopeptidase-catalyzed protein hydrolysis formed low mole...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/s0960-8524(02)00009-3
更新日期：2002-08-01 00:00:00
abstract：:This is the first of two papers concerning the behavior of black liquor during pyrolysis under pressurized conditions. Two industrial kraft liquors were pyrolyzed in a laboratory-scale pressurized single particle reactor and a pressurized grid heater at temperatures ranging from 650 to 1100 degrees C and at pressures ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.11.065
更新日期：2008-02-01 00:00:00
abstract：:Microbial fuel cell (MFC) is a promising device for energy generation and organic waste treatment simultaneously by electrochemically active bacteria (EAB). In this study, an integrated aerobic-anaerobic strategy was developed to improve the performance of P. aeruginosa-inoculated MFC. With an aerobic start-up and fol...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.06.050
更新日期：2017-10-01 00:00:00
abstract：:A vertical flow constructed wetland (VFCW) packed with the different substrates was designed to remediate the antibiotics in the wastewater. Zeolite (CW-Z) paralleled with Manganese (Mn) ore (CW-M) and biochar (CW-C) were used to enhance the synchronous removal of ciprofloxacin hydrochloride (CIPH), sulfamethazine (SM...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2020.123419
更新日期：2020-08-01 00:00:00
abstract：:Improvement on electron shuttle-mediated extracellular electron transfer (EET) is of great potential to enhance the power output of MFCs. In this study, sophorolipid was added to enhance the performance of Pseudomonas aeruginosa-inoculated MFC by improving the electron shuttle-mediated EET. Upon sophorolipid addition,...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2014.05.093
更新日期：2014-09-01 00:00:00
abstract：:Cellulosic plant material represents an as-of-yet untapped source of fermentable sugars for significant industrial use. Many physio-chemical structural and compositional factors hinder the enzymatic digestibility of cellulose present in lignocellulosic biomass. The goal of any pretreatment technology is to alter or re...
journal_title：Bioresource technology
pub_type： 杂志文章,评审
doi：10.1016/j.biortech.2004.06.025
更新日期：2005-04-01 00:00:00
abstract：:The effects of wood vinegar (WVG) on extracellular polymeric substances (EPS), and flocculation, sedimentation and dewatering performances of activated sludge were investigated in sequencing batch reactor (SBR) process. Results showed that polysaccharide (PS) and DNA were accounted for the largest and smallest proport...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.11.064
更新日期：2019-02-01 00:00:00
abstract：:The feasibility of employing Microbial Electrochemical Technology (MET)-driven electro-Fenton oxidation was evaluated as a post-treatment of an anammox system treating sanitary landfill leachate. Two different MET configuration systems were operated using effluent from partial nitrification-anammox reactor treating ma...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.07.042
更新日期：2017-11-01 00:00:00
abstract：:The aim of this work was to study the effect of different organic wastes, viz. cow dung, grass, aquatic weeds and municipal solid waste with lime and microbial inoculants on chemical and biochemical properties of vermicompost. Cow dung was the best substrate for vermicomposting. Application of lime (5 g/kg) and inocul...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2006.09.017
更新日期：2007-09-01 00:00:00
abstract：:In biobed bioremediation systems (BBSs) with vermicomposts exposed to a high load of pesticides, 6 bacteria and 4 fungus strains were isolated, identified, and investigated to enhance the removal of pesticides. Three different mixtures of BBSs composed of vermicomposts made from greenhouse (GM), olive-mill (OM) and wi...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.04.105
更新日期：2016-08-01 00:00:00
abstract：:The efficiency of a biofilter to simultaneously remove nitric oxide (NO) and sulfur dioxide (SO2) was investigated under thermophilic (48 ± 2 °C) micro-oxygen (3 vol%) conditions. After the start-up stage (Days 0-14), the stable operation period was divided into three stages. SO2 inlet concentration remained 500 mg/m3...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.121768
更新日期：2019-10-01 00:00:00
abstract：:Herein the effect of increasing light intensity on the degree of ammonia toxicity and its impact on the photosynthetic performance of Arthrospira and Chlorella was investigated using Chl fluorescence as a technique to characterize their photosystem II (PSII) activity. The results revealed that the increase of light in...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.05.094
更新日期：2016-09-01 00:00:00
abstract：:This study is designed to examine the chemical composition and in vitro antioxidant activity of the essential oil and sub-fractions of the methanol extract of Marrubium globosum subsp. globosum. The GC and GC-MS analysis of the essential oil were resulted in the determination of 84 components representing 88.2% of the...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2007.08.058
更新日期：2008-07-01 00:00:00
abstract：:Three ceramic MBRs (CMBR) installed with varied electrodes, i.e. Cu, Ti and Fe, were operated in parallel under the minute electric field to evaluate their suppression effect on membrane fouling, by comparison with control CMBR. Fe-CMBR released Fe2+ continuously to induce a higher organic removal efficiency and a smo...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.08.087
更新日期：2018-12-01 00:00:00
abstract：:In this study, the performance of Chlorococcum sp. GD in synthetic medium with different glucose concentrations (ranging from 1 to10 g/L) was investigated. Moreover, transcriptome sequencing was conducted to clarify the response of the microalga to glucose concentrations. High concentration of glucose (6-10 g/L) not o...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2019.121568
更新日期：2019-09-01 00:00:00
abstract：:The effect of electrodialytic treatment in terms of a current density, pH and Na(2)H(2)EDTA addition on the methanogenic activity of copper-amended anaerobic granular sludge taken from the UASB reactor from paper mill was evaluated. Moreover, the specific energy consumption and simplified operational and treatment cos...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.10.067
更新日期：2011-05-01 00:00:00
abstract：:Acetone, butanol and ethanol were produced in a continuous two-stage fermentation integrated with pervaporation using freely suspended cells of C. acetobutylicum ATCC 824. PDMS composite pervaporation membranes were directly coupled to the second fermentor which lead to decreased solvent titers. Overall productivity w...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2012.11.072
更新日期：2013-02-01 00:00:00
abstract：:In this study, the apparent kinetics of fast pyrolysis of alkali lignin was evaluated by obtaining isothermal mass loss data in the timescale of 2-30s at 400-700°C in an analytical pyrolyzer. The data were analyzed using different reaction models to determine the rate constants and apparent rate parameters. First orde...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2017.05.084
更新日期：2017-10-01 00:00:00
abstract：:Five bacteria isolated from earthworm viscera and identified as Brevibacillus agri, Bacillus cereus, Bacillus licheniformis, and Brevibacillus parabrevis by 16S rRNA sequencing were employed in the conversion of fish wastes generated from a restaurant specializing in sliced raw fish into fertilizer. Within 120h after ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2010.02.001
更新日期：2010-07-01 00:00:00
abstract：:In this study, a coculture bioprocess was developed with Clostridium strains producing butyric acid and Megasphaera hexanoica producing caproic acid from the butyric acid. The two bacterial strains were each cultivated in two submerged hollow-fiber membrane bioreactors (s-HF/MBRs), separately. Each fermentation broth ...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2018.09.033
更新日期：2018-12-01 00:00:00
abstract：:The garbage enzymes produced from preconsumer organic waste containing multi hydrolytic enzyme activity which helps to solubilize the waste activated sludge. The continuous production of garbage enzyme and its scaling up process need a globe optimized condition. In present study the effect of fruit peel composition an...
journal_title：Bioresource technology
pub_type： 杂志文章
doi：10.1016/j.biortech.2016.12.029
更新日期：2017-02-01 00:00:00
