1,386 results match your criteria Biodegradation[Journal]


Identification of naphthalene carboxylase subunits of the sulfate-reducing culture N47.

Biodegradation 2019 Mar 15. Epub 2019 Mar 15.

Biofilm Centre, Universität Duisburg-Essen, Essen, Germany.

Expanding industrialization and the associated usage and production of mineral oil products has caused a worldwide spread of polycyclic aromatic hydrocarbons. These pollutants accumulate and persist under anoxic conditions but little is known about the biochemical reactions catalyzing their anaerobic degradation. Recently, carboxylation of naphthalene was demonstrated for the sulfate-reducing culture N47. Read More

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http://dx.doi.org/10.1007/s10532-019-09872-zDOI Listing

Impact of primary carbon sources on microbiome shaping and biotransformation of pharmaceuticals and personal care products.

Biodegradation 2019 Feb 28. Epub 2019 Feb 28.

Department of Civil and Environmental Engineering, Colorado State University, 1301 Campus Delivery, Fort Collins, CO, 80523, USA.

Knowledge of the conditions that promote the growth and activity of pharmaceutical and personal care product (PPCP)-degrading microorganisms within mixed microbial systems are needed to shape microbiomes in biotreatment reactors and manage process performance. Available carbon sources influence microbial community structure, and specific carbon sources could potentially be added to end-of-treatment train biotreatment systems (e.g. Read More

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http://link.springer.com/10.1007/s10532-019-09871-0
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http://dx.doi.org/10.1007/s10532-019-09871-0DOI Listing
February 2019
2 Reads

Role of hydrogen (H) mass transfer in microbiological H-threshold studies.

Biodegradation 2019 Feb 20. Epub 2019 Feb 20.

Biodesign Swette Center for Environmental Biotechnology, Arizona State University, 1001 S. McAllister Avenue, Tempe, AZ, 85287-5701, USA.

Gas-to-liquid mass transfer of hydrogen (H) was investigated in a gas-liquid reactor with a continuous gas phase, a batch liquid phase, and liquid mixing regimes relevant to assessing kinetics of microbial H consumption. H transfer was quantified in real-time with a H microsensor for no mixing, moderate mixing [100 rotations per minute (rpm)], and rapid mixing (200 rpm). The experimental results were simulated by mathematical models to find best-fit values of volumetric mass transfer coefficients-ka-for H, which were 1. Read More

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http://dx.doi.org/10.1007/s10532-019-09870-1DOI Listing
February 2019

Biodegradability of legacy crude oil contamination in Gulf War damaged groundwater wells in Northern Kuwait.

Biodegradation 2019 02 6;30(1):71-85. Epub 2019 Feb 6.

CSIRO Land and Water, Centre for Environment and Life Sciences, Private Bag No.5, Wembley, WA, 6913, Australia.

During the 1991 Gulf War, oil wells in the oil fields of Kuwait were set aflame and destroyed. This resulted in severe crude oil pollution of the countries only fresh water aquifers. Here, for the first time the natural attenuation and biodegradation of the persisting groundwater contamination was investigated to assess potential processes in the aquifer. Read More

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http://dx.doi.org/10.1007/s10532-019-09867-wDOI Listing
February 2019

Methane utilization in aerobic methane oxidation coupled to denitrification (AME-D): theoretical estimation and effect of hydraulic retention time (HRT).

Biodegradation 2019 Feb 5. Epub 2019 Feb 5.

Department of Environmental Engineering, Korea University, Sejong-ro 2511, Sejong, 30019, Republic of Korea.

Even though aerobic methane-oxidation coupled to denitrification (AME-D) has been extensively studied, the exact estimation of CH utilization during this process still requires better understanding because effective utilization of CH is essential in denitrification performance, CH emission and economy. This study presents the effect of hydraulic retention time (HRT) on CH utilization in an AME-D bioreactor. Stoichiometries for AME-D were newly established by using the energy balance and the thermodynamic electron equivalent model. Read More

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http://dx.doi.org/10.1007/s10532-019-09869-8DOI Listing
February 2019

Recovery of unstable digestion of vegetable waste by adding trace elements using the bicarbonate alkalinity to total alkalinity ratio as an early warning indicator.

Biodegradation 2019 02 1;30(1):87-100. Epub 2019 Feb 1.

Biogas Institute of Ministry of Agriculture, No. 13 Section 4, Renmin Nan Road, Chengdu, 610041, Sichuan, China.

Vegetable waste (VW) is highly perishable and susceptible to acidification during anaerobic digestion, which inhibits biogas production. Effective process monitoring, diagnosis and control are necessary to maintain stable anaerobic digestion at a high organic loading rate (OLR). Continuous mesophilic digestion was conducted at OLRs of 0. Read More

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http://dx.doi.org/10.1007/s10532-019-09868-9DOI Listing
February 2019
1 Read

Antibacterial, anti-adherent and cytotoxic activities of surfactin(s) from a lipolytic strain Bacillus safensis F4.

Biodegradation 2019 Jan 1. Epub 2019 Jan 1.

Laboratory of Molecular and Cellular Screening Processes, Centre of Biotechnology of Sfax, University of Sfax, Sidi Mansour Road Km 6, P.O. Box 1177, 3018, Sfax, Tunisia.

The bacterial strain F4, isolated from olive oil-contaminated soil, has been found to produce biosurfactants as confirmed by oil displacement test and the emulsification index results. The identification of the strain F4, by 16S ribosomal RNA gene, showed a close similarity to Bacillus safensis, therefore the strain has been termed Bacillus safensis F4. The Thin Layer Chromatography (TLC) and the High Pressure Liquid Chromatography-Mass Spectrometry (HPLC-MS/MS) demonstrated that the biosurfactant had a lipopeptide structure and was classified as surfactin. Read More

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http://dx.doi.org/10.1007/s10532-018-09865-4DOI Listing
January 2019
2 Reads

Overproduction of rhamnolipid by fed-batch cultivation of Pseudomonas aeruginosa in a lab-scale fermenter under tight DO control.

Biodegradation 2019 02 1;30(1):59-69. Epub 2019 Jan 1.

Chemistry and Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran.

Rhamnolipids are one of the most well-known classes of biosurfactants having wide applications in various industries due to low toxicity, high biodegradability, and environmentally friendly. Dissolved oxygen (DO) concentration has the crucial effect on rhamnolipids production, particularly through fed-batch cultivation. In this study, the effect of different levels of DO concentrations on rhamnolipid production by Pseudomonas aeruginosa in both batch and fed-batch fermentation was investigated in a lab-scale fermenter under precise DO control. Read More

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http://dx.doi.org/10.1007/s10532-018-09866-3DOI Listing
February 2019
1 Read

Economic production and biocontrol efficiency of lipopeptide biosurfactants from Bacillus mojavenis A21.

Biodegradation 2018 Dec 6. Epub 2018 Dec 6.

Laboratoire de Génie Enzymatique et de Microbiologie, Ecole Nationale d'Ingénieurs de Sfax, Université de Sfax, B.P. 1173-3038, Sfax, Tunisia.

In the wake of an increased attention on the eco-friendly biopesticidal products and the rising market requirements for organic agents, lipopeptides compounds have been described as biological control agents which improve the overall health growth and development of plants. Nevertheless, their high production cost constitue the major flaw in their wide use to control plant diseases. The present article aims to formulate an economic media for lipopeptides production by Bacillus mojavensis A21 for application as natural fungicides for plant disease treatment. Read More

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http://link.springer.com/10.1007/s10532-018-9864-7
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http://dx.doi.org/10.1007/s10532-018-9864-7DOI Listing
December 2018
5 Reads

Long-term performance of a UASB reactor treating acid mine drainage: effects of sulfate loading rate, hydraulic retention time, and COD/SO ratio.

Biodegradation 2019 02 8;30(1):47-58. Epub 2018 Nov 8.

Laboratório de Biotecnologia Anaeróbia, Instituto de Ciência e Tecnologia, Universidade Federal de Alfenas (UNIFAL-MG), Rodovia José Aurélio Vilela, 11999 (BR 267, Km 533), 37715-400, Poços de Caldas, MG, Brazil.

Acid mine drainage (AMD) is among the most serious threats to water and the typical alkali-based treatment costs are high. This study's main objective was the establishment of a highly efficient biological process using an upflow anaerobic sludge blanket (UASB) reactor to treat AMD based on a shorter hydraulic retention time (HRT) and lower organic matter input. The process was evaluated for a long-term operation (739 days) in terms of the influence of HRT (14-24 h), metal addition, sulfate loading rate (0. Read More

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http://link.springer.com/10.1007/s10532-018-9863-8
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http://dx.doi.org/10.1007/s10532-018-9863-8DOI Listing
February 2019
26 Reads

Bio-emulsifying and biodegradation activities of syringafactin producing Pseudomonas spp. strains isolated from oil contaminated soils.

Biodegradation 2018 Nov 2. Epub 2018 Nov 2.

Unit of Enzyme and Bioconversion, National School of Engineers, Soukraroad, 3038, Sfax, Tunisia.

Pseudomonas strains isolated from oil contaminated soils were screened for biosurfactant production. Three out of eleven Pseudomonas isolates were selected for their high emulsifying activity (E24 value on n-hexadecane ~ 78%). These isolates (E39, E311 and E313) were identified as members of the P. Read More

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http://link.springer.com/10.1007/s10532-018-9861-x
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http://dx.doi.org/10.1007/s10532-018-9861-xDOI Listing
November 2018
23 Reads

RETRACTED ARTICLE: Rhamnolipid biosurfactants: functional properties and potential contributions for bioremediation.

Biodegradation 2018 Oct 24. Epub 2018 Oct 24.

Shaanxi Provincial Key Laboratory of Biotechnology, Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, 229 Taibai North Rd, Xi'an, 710069, Shaanxi, China.

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http://link.springer.com/10.1007/s10532-018-9862-9
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http://dx.doi.org/10.1007/s10532-018-9862-9DOI Listing
October 2018
20 Reads

Degradation of 4-bromophenol by Ochrobactrum sp. HI1 isolated from desert soil: pathway and isotope effects.

Biodegradation 2019 02 22;30(1):37-46. Epub 2018 Oct 22.

Zuckerberg Institute for Water Research, Department of Environmental Hydrology and Microbiology, Ben-Gurion University of the Negev, 84990, Sede Boqer Campus, Israel.

Anthropogenic activities have introduced elevated levels of brominated phenols to the environment. These compounds are associated with toxic and endocrine effects, and their environmental fate is of interest. An aerobic strain Ochrobactrum sp. Read More

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http://link.springer.com/10.1007/s10532-018-9860-y
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http://dx.doi.org/10.1007/s10532-018-9860-yDOI Listing
February 2019
10 Reads

Anaerobic Digestion Model No. 1 (ADM1) for mathematical modeling of full-scale sludge digester performance in a municipal wastewater treatment plant.

Authors:
Hale Ozgun

Biodegradation 2019 02 17;30(1):27-36. Epub 2018 Oct 17.

Environmental Engineering Department, Civil Engineering Faculty, Istanbul Technical University, Ayazaga Campus, Maslak, 34469, Istanbul, Turkey.

Anaerobic digestion of sludge is considered to be one of the most appropriate technologies for energy production via conversion of organic matter into methane containing biogas. Biogas produced by anaerobic digestion of municipal wastewater sludge can be utilized as fuel to offset heat and electricity consumption of wastewater treatment facilities. Modeling can be used effectively to evaluate the impact of different process and operation variables on the performance of the treatment processes including complex ones such as anaerobic digestion. Read More

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http://dx.doi.org/10.1007/s10532-018-9859-4DOI Listing
February 2019
3 Reads

An RND transporter in the monoterpene metabolism of Castellaniella defragrans.

Biodegradation 2019 02 17;30(1):1-12. Epub 2018 Oct 17.

Dept. of Microbiology, Max Planck-Institute for Marine Microbiology, Celsiusstr. 1, 28359, Bremen, Germany.

The betaproteobacterium Castellaniella defragrans 65Phen grows on monoterpenes at concentrations toxic to many bacteria. Tolerance mechanisms include modifications of the membrane fatty acid composition and the mineralization of monoterpenes. In this study, we characterized an efflux transporter associated to the monoterpene metabolism. Read More

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http://dx.doi.org/10.1007/s10532-018-9857-6DOI Listing
February 2019
3 Reads

Impact of additives of commercial rubber compounds on the microbial and enzymatic degradation of poly(cis-1,4-isoprene).

Biodegradation 2019 02 15;30(1):13-26. Epub 2018 Oct 15.

Institut für Molekulare Mikrobiologie und Biotechnologie, Westfälische Wilhelms-Universität Münster, Corrensstraße 3, 48149, Münster, Germany.

Much fundamental research has already been performed to understand the mechanism of microbial rubber degradation. Due to the increasing amount of rubber waste, biotechnical methods to degrade that particular waste are strongly needed. The present study evaluates whether a microbial or an enzymatic process is more suitable for efficient biodegradation, due to less sensitivity towards rubber additives. Read More

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http://dx.doi.org/10.1007/s10532-018-9858-5DOI Listing
February 2019
1 Read

Simultaneous removal of hexavalent chromium and o-dichlorobenzene by isolated Serratia marcescens ZD-9.

Biodegradation 2018 12 28;29(6):605-616. Epub 2018 Sep 28.

College of Environmental Science and Engineering, Hunan University, Changsha, 410082, People's Republic of China.

Heavy metals-organics mixture pollution is increasingly concerned and simultaneous removal of organic pollutants and heavy metals is becoming significant. In this study, a strain was isolated from the sediment of a tannery effluent outfalls, which can remove o-dichlorobenzene (o-DCB) and Cr(VI) simultaneously. The bacterial isolate was identified as Serratia marcescens by the 16S rRNA gene sequences. Read More

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http://link.springer.com/10.1007/s10532-018-9856-7
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http://dx.doi.org/10.1007/s10532-018-9856-7DOI Listing
December 2018
4 Reads
2.340 Impact Factor

Characteristics and metabolic pathway of acetamiprid biodegradation by Fusarium sp. strain CS-3 isolated from soil.

Biodegradation 2018 12 26;29(6):593-603. Epub 2018 Sep 26.

State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Puzhu Road No. 30, Nanjing, 211800, People's Republic of China.

An acetamiprid-degrading fungus was isolated from contaminated soil and identified as Fusarium sp. strain CS-3 based on physiological, biochemical, and molecular analyses. Strain CS-3 exploited 50 mg/L as the sole carbon source in liquid culture, removing 98% in 96 h. Read More

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http://link.springer.com/10.1007/s10532-018-9855-8
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http://dx.doi.org/10.1007/s10532-018-9855-8DOI Listing
December 2018
17 Reads

Inhibition of benzene, toluene, phenol and benzoate in single and combination on Anammox activity: implication to the denitrification-Anammox synergy.

Biodegradation 2018 12 26;29(6):567-577. Epub 2018 Sep 26.

State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, 400044, People's Republic of China.

A previous study demonstrated that denitrification synergized with Anammox could accelerate the anaerobic degradation of benzene. The inhibitory effects of benzene, toluene, phenol and benzoate in single and combination on Anammox activity were investigated by short-term batch tests. The results indicated that the inhibition of single compounds on Anammox could be well fitted with the extended non-competitive and Luong inhibition kinetic models. Read More

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http://dx.doi.org/10.1007/s10532-018-9853-xDOI Listing
December 2018
1 Read

Interdependence between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge in semi-continuous reactors.

Biodegradation 2018 12 21;29(6):579-592. Epub 2018 Sep 21.

Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA) CCT La Plata CONICET - Fac. de Cs. Exactas, UNLP, 47 y 116, B1900AJJ, La Plata, Argentina.

The objective of the present work was to analyze the interrelationship between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge (AS) in semi-continuous reactors (SCRs). AS were obtained from three SCRs fed with glucose, acetate or peptone. AS from these reactors were used as inocula for three SCRs that were fed with each biogenic substrate, and for three SCRs that were fed with the biogenic substrate and BPA. Read More

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http://dx.doi.org/10.1007/s10532-018-9854-9DOI Listing
December 2018
1 Read

Effects of fungal-assisted algal harvesting through biopellet formation on pesticides in water.

Biodegradation 2018 12 1;29(6):557-565. Epub 2018 Sep 1.

Division of Natural Sciences, Kristianstad University, Kristianstad, Sweden.

Recent research has demonstrated the potential of using filamentous fungi to form pellets with microalgae (biopellets), in order to facilitate harvesting of microalgae from water following algae-based treatment of wastewater. In parallel, there is a need to develop techniques for removing organic pollutants such as pesticides and pharmaceuticals from wastewater. In experiments using the microalga Chlorella vulgaris, the filamentous fungus Aspergillus niger and biopellets composed of these microorganisms, this study investigated whether fungal-assisted algal harvesting can also remove pesticides from contaminated water. Read More

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http://dx.doi.org/10.1007/s10532-018-9852-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6245101PMC
December 2018
1 Read

Rapid start-up and performance of denitrifying granular sludge in an upflow sludge blanket (USB) reactor treating high concentration nitrite wastewater.

Biodegradation 2018 12 23;29(6):543-555. Epub 2018 Aug 23.

Hualu Environmental Technology Co., Ltd., Guangzhou, China.

Denitrifying granular sludge reactor holds better nitrogen removal efficiency than other kinds of denitrifying reactors, while this reactor commonly needs seeding anaerobic granular sludge and longer period for start-up in practice, which restricted the application of denitrifying granular sludge reactor. This study presented a rapid and stable start-up method for denitrifying granular sludge. An upflow sludge blanket (USB) reactor with packings was established with flocculent activated sludge for treatment of high concentration nitrite wastewater. Read More

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http://dx.doi.org/10.1007/s10532-018-9851-zDOI Listing
December 2018
4 Reads

HS biotreatment with sulfide-oxidizing heterotrophic bacteria.

Biodegradation 2018 12 23;29(6):511-524. Epub 2018 Aug 23.

State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, People's Republic of China.

Many industrial activities produce HS, which is toxic at high levels and odorous at even very low levels. Chemolithotrophic sulfur-oxidizing bacteria are often used in its remediation. Recently, we have reported that many heterotrophic bacteria can use sulfide:quinone oxidoreductase and persulfide dioxygenase to oxidize HS to thiosulfate and sulfite. Read More

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http://dx.doi.org/10.1007/s10532-018-9849-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6245092PMC
December 2018
5 Reads
2.340 Impact Factor

Screening of a beta-cypermethrin-degrading bacterial strain Brevibacillus parabrevis BCP-09 and its biochemical degradation pathway.

Biodegradation 2018 12 16;29(6):525-541. Epub 2018 Aug 16.

School of Food and Bioengineering, Xihua University, Chengdu, 610039, Sichuan, People's Republic of China.

A novel beta-cypermethrin (Beta-CP)-degrading strain isolated from activated sludge was identified as Brevibacillus parabrevis BCP-09 based on its morphological and physio-biochemical characteristics, and 16S rRNA gene analysis. Strain BCP-09 could effectively degrade Beta-CP at pH 5.0-9. Read More

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http://dx.doi.org/10.1007/s10532-018-9850-0DOI Listing
December 2018
6 Reads

Anaerobic degradation of 2,4-dichlorophenoxyacetic acid by Thauera sp. DKT.

Authors:
Duc Danh Ha

Biodegradation 2018 10 13;29(5):499-510. Epub 2018 Aug 13.

Dong Thap University, Cao Lanh City, Dong Thap Province, Vietnam.

Thauera sp. strain DKT isolated from sediment utilized 2,4-dichlorophenoxyacetic acid (2,4D) and its relative compounds as sole carbon and energy sources under anaerobic conditions and used nitrate as an electron acceptor. The determination of 2,4D utilization at different concentrations showed that the utilization curve fitted well with the Edward model with the maximum degradation rate as 0. Read More

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http://link.springer.com/10.1007/s10532-018-9848-7
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http://dx.doi.org/10.1007/s10532-018-9848-7DOI Listing
October 2018
17 Reads

Simultaneous production of alkaline amylase and biosurfactant by Bacillus methylotrophicus DCS1: application as detergent additive.

Biodegradation 2018 Aug 10. Epub 2018 Aug 10.

Laboratoire de Génie Enzymatique et de Microbiologie, Ecole Nationale d'Ingénieurs de Sfax, B.P. "1173", 3038, Sfax, Tunisia.

This study investigated the coproduction of alkaline amylase and lipopeptides by Bacillus methylotrophicus DCS1 strain, as well as their biochemical characterisation. The best production of both amylase and biosurfactant was obtained when potato starch (10 g/L) and glutamic acid (5 g/L) were used as carbon and nitrogen sources, respectively. The bacterial strain was incubated for 48 h at 25 °C and 150 rpm. Read More

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http://dx.doi.org/10.1007/s10532-018-9847-8DOI Listing
August 2018
27 Reads

Growth of Dehalococcoides mccartyi species in an autotrophic consortium producing limited acetate.

Biodegradation 2018 10 10;29(5):487-498. Epub 2018 Aug 10.

Department of Civil and Environmental Engineering, National University of Singapore, Singapore, 117576, Singapore.

The dechlorinating Dehalococcoides mccartyi species requires acetate as carbon source, but little is known on its growth under acetate limiting conditions. In this study, we observed growth and dechlorination of a D. mccartyi-containing mixed consortium in a fixed-carbon-free medium with trichloroethene in the aqueous phase and H/CO in the headspace. Read More

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http://dx.doi.org/10.1007/s10532-018-9846-9DOI Listing
October 2018
2 Reads

Biodegradability of polar compounds formed from weathered diesel.

Biodegradation 2018 10 23;29(5):443-461. Epub 2018 Jul 23.

Centre for Environment and Life Sciences, CSIRO Land and Water, Private Bag No. 5, Wembley, WA, 6913, Australia.

Once released into the environment, petroleum is exposed to biological and physical weathering processes which can lead to the formation and accumulation of highly recalcitrant polar compounds. These polar compounds are often challenging to analyse and can be present as an "unresolved complex mixture" (UCM) in total petroleum hydrocarbon (TPH) analyses and can be mistaken for natural organic matter. Existing research on UCMs comprised of polar compounds is limited, with a majority of the compounds remaining unidentified and their long-term persistence unknown. Read More

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http://dx.doi.org/10.1007/s10532-018-9841-1DOI Listing
October 2018
13 Reads

Simultaneous nitrification-denitrification and microbial community profile in an oxygen-limiting intermittent aeration SBBR with biodegradable carriers.

Biodegradation 2018 10 23;29(5):473-486. Epub 2018 Jul 23.

Key Laboratory of Water Pollution Control and Environmental Safety of Zhejiang Province, Hangzhou, People's Republic of China.

To enhance the startup and efficient simultaneous nitrification and denitrification for sewage treatment, sequencing batch biofilm reactors (SBBRs) partially coupled with rice husk were established and operated under various intermittent micro-aeration cycles (IMCs) and COD/N ratios under oxygen-limiting intermittent aeration conditions. Experimental results showed that the increase of IMCs with non-aeration/micro-aeration mode of (8 h/4 h) to (2 h/1 h) in a 12 h-cycle accelerated the startup performance and improved NH-N and COD removal. NH-N, TN and COD removal efficiencies were 98. Read More

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http://dx.doi.org/10.1007/s10532-018-9845-xDOI Listing
October 2018
5 Reads

Characterization and production optimization of biosurfactants by Bacillus mojavensis I4 with biotechnological potential for microbial enhanced oil recovery.

Biodegradation 2018 Jul 20. Epub 2018 Jul 20.

Laboratory of Plant Improvement and Valorization of Agricultural Resources (LR16ES20), National School of Engineering, Sfax University, P.O. Box 1173, 3038, Sfax, Tunisia.

Response surface methodology was applied to optimize the production of biosurfactants from Bacillus mojavensis I4 using Box-Behnken design with four variables. The optimal variable combination was 3% of glucose as carbon source, 0.6% of glutamic acid as nitrogen source, temperature of 35 °C and 10 g/l of NaCl which yielded to an optimal production of 4. Read More

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http://dx.doi.org/10.1007/s10532-018-9844-yDOI Listing
July 2018
20 Reads

Evaluating the mycostimulation potential of select carbon amendments for the degradation of a model PAH by an ascomycete strain enriched from a superfund site.

Biodegradation 2018 Oct 13;29(5):463-471. Epub 2018 Jul 13.

Department of Civil & Environmental Engineering, Duke University, Durham, NC, USA.

Although ecological flexibility has been well documented in fungi, it remains unclear how this flexibility can be exploited for pollutant degradation, especially in the Ascomycota phylum. In this work, we assess three mycostimulation amendments for their ability to induce degradation in Trichoderma harzanium, a model fungus previously isolated from a Superfund site contaminated with polycyclic aromatic hydrocarbons. The amendments used in the present study were selected based on the documented ecological roles of ascomycetes. Read More

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http://dx.doi.org/10.1007/s10532-018-9843-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6330244PMC
October 2018
6 Reads

Special issue: bioremediation of contaminated soil and water: GeoTrop 2017.

Biodegradation 2018 08;29(4):311-312

Department of Science and Environmental Studies, The Education University of Hong Kong, Hong Kong, Hong Kong.

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http://link.springer.com/10.1007/s10532-018-9842-0
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http://dx.doi.org/10.1007/s10532-018-9842-0DOI Listing
August 2018
15 Reads

Aerobic bacteria degrading both n-alkanes and aromatic hydrocarbons: an undervalued strategy for metabolic diversity and flexibility.

Biodegradation 2018 08 13;29(4):359-407. Epub 2018 Jun 13.

Unit of Biochemistry, Institute of Plant Biology and Biotechnology, Faculty of Biotechnology and Horticulture, University of Agriculture in Kraków, al. 29 Listopada 54, 31-425, Kraków, Poland.

Environmental pollution with petroleum toxic products has afflicted various ecosystems, causing devastating damage to natural habitats with serious economic implications. Some crude oil components may serve as growth substrates for microorganisms. A number of bacterial strains reveal metabolic capacities to biotransform various organic compounds. Read More

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http://dx.doi.org/10.1007/s10532-018-9837-xDOI Listing
August 2018
9 Reads

Anaerobic ammonium oxidation linked to sulfate and ferric iron reduction fuels nitrogen loss in marine sediments.

Biodegradation 2018 10 11;29(5):429-442. Epub 2018 Jun 11.

División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica (IPICYT), 78216, San Luis Potosí, SLP, Mexico.

Availability of fixed nitrogen is a pivotal driver on primary productivity in the oceans, thus the identification of key processes triggering nitrogen losses from these ecosystems is of major importance as they affect ecosystems function and consequently global biogeochemical cycles. Denitrification and anaerobic ammonium oxidation coupled to nitrite reduction (Anammox) are the only identified marine sinks for fixed nitrogen. The present study provides evidence indicating that anaerobic ammonium oxidation coupled to the reduction of sulfate, the most abundant electron acceptor present in the oceans, prevails in marine sediments. Read More

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http://dx.doi.org/10.1007/s10532-018-9839-8DOI Listing
October 2018
20 Reads

Adsorptive removal of harmful algal species Microcystis aeruginosa directly from aqueous solution using polyethylenimine coated polysulfone-biomass composite fiber.

Biodegradation 2018 08 25;29(4):349-358. Epub 2018 Jun 25.

Division of Environmental Science and Ecological Engineering, College of Life Sciences and Biotechnology, Korea University, Seoul, 02841, Republic of Korea.

In recent times, the treatment of harmful algal blooms (HABs) became an important environmental issue to preserve and remediate water resources globally. In the present study, the adsorptive removal of harmful algal species Microcystis aeruginosa directly from an aqueous medium was attempted. Waste biomass (Escherichia coli) was immobilized using polysulfone and coated using the cationic polymer polyethylenimine (PEI) to generate PEI-coated polysulfone-biomass composite fiber (PEI-PSBF). Read More

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http://dx.doi.org/10.1007/s10532-018-9840-2DOI Listing
August 2018
8 Reads

Anaerobic biotransformation of hexachlorocyclohexane isomers by Dehalococcoides species and an enrichment culture.

Biodegradation 2018 Jun 18. Epub 2018 Jun 18.

Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318, Leipzig, Germany.

The biotransformation of hexachlorocyclohexane isomers (HCH) by two Dehalococcoides mccartyi strains (195 and BTF08) and an enrichment culture was investigated and compared to conversion by the obligate anaerobic strain Clostridium pasteurianum strain DSMZ 525. The D. mccartyi strains preferentially transformed γ-HCH over α-HCH and δ-HCH isomers while β-HCH biotransformation was not significant. Read More

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http://dx.doi.org/10.1007/s10532-018-9838-9DOI Listing
June 2018
3 Reads

The effect and biological mechanism of granular sludge size on performance of autotrophic nitrogen removal system.

Biodegradation 2018 08 31;29(4):339-347. Epub 2018 May 31.

Department of Environmental Engineering, Zhejiang University, Hangzhou, 310058, China.

The autotrophic process for nitrogen removal has attracted worldwide attention in the field of wastewater treatment, and the performance of this process is greatly influenced by the size of granular sludge particles present in the system. In this work, the granular sludge was divided into three groups, i.e. Read More

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http://dx.doi.org/10.1007/s10532-018-9836-yDOI Listing
August 2018
9 Reads

Exploring potential applications of a novel extracellular polymeric substance synthesizing bacterium (Bacillus licheniformis) isolated from gut contents of earthworm (Metaphire posthuma) in environmental remediation.

Biodegradation 2018 08 22;29(4):323-337. Epub 2018 May 22.

Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan.

The aim was to isolate, characterize, and explore potentials of gut bacteria from the earthworm (Metaphire posthuma) and imply these bacteria for remediation of Cu(II) and Zn(II). An extracellular polymeric substance (EPS) producing gut bacteria (Bacillus licheniformis strain KX657843) was isolated and identified based on 16S rRNA sequencing and phylogenetic analysis. The strain showed maximum tolerance of 8 and 6 mM for Cu(II) and Zn(II) respectively. Read More

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http://link.springer.com/10.1007/s10532-018-9835-z
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http://dx.doi.org/10.1007/s10532-018-9835-zDOI Listing
August 2018
8 Reads
2.340 Impact Factor

Competition for electrons between mono-oxygenations of pyridine and 2-hydroxypyridine.

Biodegradation 2018 10 21;29(5):419-427. Epub 2018 May 21.

Biodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, AZ, 85287-5701, USA.

Pyridine and its heterocyclic derivatives are widely encountered in industrial wastewaters, and they are relatively recalcitrant to biodegradation. Pyridine biodegradation is initiated by two mono-oxygenation reactions that compete for intracellular electron donor (2H). In our experiments, UV photolysis of pyridine generated succinate, whose oxidation augmented the intracellular electron donor and accelerated pyridine biodegradation and mineralization. Read More

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http://dx.doi.org/10.1007/s10532-018-9834-0DOI Listing
October 2018
6 Reads

Application of a low-cost biosurfactant in heavy metal remediation processes.

Biodegradation 2018 May 4. Epub 2018 May 4.

Universidade Católica de Pernambuco, Rua do Príncipe, n. 526, Boa Vista, Recife, Pernambuco, CEP 50050-900, Brazil.

The industrial interest in microbial surfactants has intensified in recent years due to the characteristics of these compounds, such as biodegradability, low toxicity, and effectiveness in removing heavy metals and hydrophobic organic compounds from soil and water. This paper describes the production of a biosurfactant by the yeast Candida tropicalis grown in distilled water with 2.5% molasses, 2. Read More

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http://dx.doi.org/10.1007/s10532-018-9833-1DOI Listing
May 2018
6 Reads

Production, formulation and cost estimation of a commercial biosurfactant.

Biodegradation 2018 May 3. Epub 2018 May 3.

Northeast Biotechnology Network, Federal Rural University of Pernambuco, Rua Dom Manoel de Medeiros, s/n, Dois Irmãos, Recife, Pernambuco, CEP: 52171-900, Brazil.

Due to their amphipathic nature, biosurfactants are multifunctional molecules that have considerable potential in several industries, especially the petroleum industry. In this study, the commercial production of a biosurfactant from Pseudomonas cepacia CCT6659 grown on industrial waste was investigated in a semi-industrial 50-L bioreactor for use in the removal of hydrocarbons from oily effluents. A concentration of 40. Read More

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http://dx.doi.org/10.1007/s10532-018-9830-4DOI Listing
May 2018
9 Reads

1,4-Dioxane degradation characteristics of Rhodococcus aetherivorans JCM 14343.

Biodegradation 2018 06 25;29(3):301-310. Epub 2018 Apr 25.

Environment and Medical Sciences Course, Graduate School of Medical Sciences, Kitasato University, 1-15-1 Kitasato, Sagamihara-Minami, Kanagawa, 252-0373, Japan.

Rhodococcus aetherivorans JCM 14343 can degrade 1,4-dioxane as a sole carbon and energy source. This study aimed to characterize this 1,4-dioxane degradation ability further, and assess the potential use of the strain for 1,4-dioxane removal in industrial wastewater. Strain JCM 14343 was able to degrade 1,4-dioxane inducibly, and its 1,4-dioxane degradation was also induced by tetrahydrofuran and 1,4-butanediol. Read More

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http://dx.doi.org/10.1007/s10532-018-9832-2DOI Listing
June 2018
7 Reads

Anthelmintic efficacy of glycolipid biosurfactant produced by Pseudomonas plecoglossicida: an insight from mutant and transgenic forms of Caenorhabditis elegans.

Biodegradation 2018 Apr 16. Epub 2018 Apr 16.

Department of Microbial Biotechnology, Bharathiar University, Coimbatore, TN, India.

The current research focuses on the production and characterization of glycolipid biosurfactant (GB) from Pseudomonas plecoglossicida and its anthelmintic activity against Caenorhabditis elegans. The GB was purified and characterized by Fourier Transform Infrared Spectroscopy (FTIR) and Gas Chromatography and Mass Spectrometry (GC-MS) analysis. Anthelmintic activity of GB was studied at six different pharmacological doses from 10 to 320 µg/mL on C. Read More

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http://dx.doi.org/10.1007/s10532-018-9831-3DOI Listing
April 2018
9 Reads
2.340 Impact Factor

Kinetics study of nicosulfuron degradation by a Pseudomonas nitroreducens strain NSA02.

Biodegradation 2018 06 10;29(3):271-283. Epub 2018 Apr 10.

Key Laboratory of Integrated Pest Management on Crops in Southwest, Ministry of Agriculture, Institute of Plant Protection, Sichuan Academy of Agricultural Science, Chengdu, 610066, People's Republic of China.

A bacterial strain NSA02, isolated from contaminated soil and identified as Pseudomonas nitroreducens based on partial 16S rDNA gene sequence analysis and BIOLOG microbiology analysis, was used to study biodegradation of nicosulfuron in the culture medium. The optimal degradation conditions were determined to be 30 °C and pH 7.0. Read More

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http://link.springer.com/10.1007/s10532-018-9828-y
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http://dx.doi.org/10.1007/s10532-018-9828-yDOI Listing
June 2018
10 Reads

Nitrogen removal performance and microbial community of an enhanced multistage A/O biofilm reactor treating low-strength domestic wastewater.

Biodegradation 2018 06 7;29(3):285-299. Epub 2018 Apr 7.

State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China.

The low-strength domestic wastewater (LSDW) treatment with low chemical oxygen demand (COD) has drawn extensive attention for the poor total nitrogen (TN) removal performance. In the present study, an enhanced multistage anoxic/oxic (A/O) biofilm reactor was designed to improve the TN removal performance of the LSDW treatment. Efficient nitrifying and denitrifying biofilm carriers were cultivated and then filled into the enhanced biofilm reactor as the sole microbial source. Read More

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http://dx.doi.org/10.1007/s10532-018-9829-xDOI Listing
June 2018
45 Reads
2.340 Impact Factor

Biodegradation of pentafluorosulfanyl-substituted aminophenol in Pseudomonas spp.

Biodegradation 2018 06 30;29(3):259-270. Epub 2018 Mar 30.

School of Biomolecular and Biomedical Science, University College Dublin, Belfield, Dublin 4, Ireland.

The pentafluorosulfanyl (SF-) substituent conveys properties that are beneficial to drugs and agrochemicals. As synthetic methodologies improve the number of compounds containing this group will expand and these chemicals may be viewed as emerging pollutants. As many microorganisms can degrade aromatic xenobiotics, we investigated the catabolism of SF-substituted aminophenols by bacteria and found that some Pseudomonas spp. Read More

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http://link.springer.com/10.1007/s10532-018-9827-z
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http://dx.doi.org/10.1007/s10532-018-9827-zDOI Listing
June 2018
13 Reads

Improvement of sulfamethoxazole (SMX) elimination and inhibition of formations of hydroxylamine-SMX and N4-acetyl-SMX by membrane bioreactor systems.

Biodegradation 2018 06 15;29(3):245-258. Epub 2018 Mar 15.

Key Laboratory of Systems Bioengineering (Ministry of Education), School of Chemical Engineering and Technology, Tianjin University, No. 135 Yaguan Road, Haihe Education Park, Tianjin, 300350, People's Republic of China.

Sulfamethoxazole (SMX) has frequently been detected in aquatic environments. In natural environment, not only individual microorganism but also microbial consortia are involved in some biotransformation of pollutants. The competition for space under consortia causing cell-cell contact inhibition changes the cellular behaviors. Read More

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http://dx.doi.org/10.1007/s10532-018-9826-0DOI Listing
June 2018
5 Reads

Anaerobic biodegradation of partially hydrolyzed polyacrylamide in long-term methanogenic enrichment cultures from production water of oil reservoirs.

Biodegradation 2018 06 3;29(3):233-243. Epub 2018 Mar 3.

State Key Laboratory of Bioreactor Engineering and Institute of Applied Chemistry, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, People's Republic of China.

The increasing usage of partially hydrolyzed polyacrylamide (HPAM) in oilfields as a flooding agent to enhance oil recovery at so large quantities is an ecological hazard to the subsurface ecosystem due to persistence and inertness. Biodegradation of HPAM is a potentially promising strategy for dealing with this problem among many other methods available. To understand the responsible microorganisms and mechanism of HPAM biodegradation under anaerobic conditions, an enrichment culture from production waters of oil reservoirs were established with HPAM as the sole source of carbon and nitrogen incubated for over 328 days, and analyzed using both molecular microbiology and chemical characterization methods. Read More

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http://dx.doi.org/10.1007/s10532-018-9825-1DOI Listing
June 2018
13 Reads

Contaminant concentration versus flow velocity: drivers of biodegradation and microbial growth in groundwater model systems.

Biodegradation 2018 06 28;29(3):211-232. Epub 2018 Feb 28.

Helmholtz Zentrum München - German Research Center for Environmental Health, Institute of Groundwater Ecology, Ingolstädter Landstrasse 1, 85764, Neuherberg, Germany.

Aromatic hydrocarbons belong to the most abundant contaminants in groundwater systems. They can serve as carbon and energy source for a multitude of indigenous microorganisms. Predictions of contaminant biodegradation and microbial growth in contaminated aquifers are often vague because the parameters of microbial activity in the mathematical models used for predictions are typically derived from batch experiments, which don't represent conditions in the field. Read More

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http://dx.doi.org/10.1007/s10532-018-9824-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5943387PMC
June 2018
4 Reads

Modulation of microbial consortia enriched from different polluted environments during petroleum biodegradation.

Biodegradation 2018 04 28;29(2):187-209. Epub 2018 Feb 28.

Laboratory of Analysis, Treatment and Valorization of Environmental Pollutants and Products, Faculty of Pharmacy, Monastir University, Monastir, Tunisia.

Environmental microbial communities are key players in the bioremediation of hydrocarbon pollutants. Here we assessed changes in bacterial abundance and diversity during the degradation of Tunisian Zarzatine oil by four indigenous bacterial consortia enriched from a petroleum station soil, a refinery reservoir soil, a harbor sediment and seawater. The four consortia were found to efficiently degrade up to 92. Read More

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http://dx.doi.org/10.1007/s10532-018-9823-3DOI Listing
April 2018
33 Reads