Academic literature on the topic 'Microbial culture enrichment'
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Journal articles on the topic "Microbial culture enrichment"
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Grosser, Robert J., Michael Friedrich, David M. Ward, and William P. Inskeep. "Effect of Model Sorptive Phases on Phenanthrene Biodegradation: Different Enrichment Conditions Influence Bioavailability and Selection of Phenanthrene-Degrading Isolates." Applied and Environmental Microbiology 66, no. 7 (July 1, 2000): 2695–702. http://dx.doi.org/10.1128/aem.66.7.2695-2702.2000.
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ABSTRACT The sorption of organic contaminants by natural organic matter (NOM) often limits substrate bioavailability and is an important factor affecting microbial degradation rates in soils and sediments. We hypothesized that reduced substrate bioavailability might influence which microbial assemblages are responsible for contaminant degradation under enrichment culture conditions. Our primary goal was to characterize enrichments in which different model organic solid phases were used to establish a range of phenanthrene bioavailabilities for soil microorganisms. Phenanthrene sorption coefficients (expressed as log KD values) ranged from 3.0 liters kg−1 for Amberlite carboxylic acid cation-exchange resin (AMB) to 3.5 liters kg−1 for Biobeads polyacrylic resin (SM7) and 4.2 liters kg−1 for Biobeads divinyl benzene resin (SM2). Enrichment cultures were established for control (no sorptive phase), sand, AMB, SM7, and SM2 treatments by using two contaminated soils (from Dover, Ohio, and Libby, Mont.) as the initial inocula. The effects of sorption by model phases on the degradation of phenanthrene were evaluated for numerous transfers in order to obtain stable microbial assemblages representative of sorptive and nonsorptive enrichment cultures and to eliminate the effects of the NOM present in the initial inoculum. Phenanthrene degradation rates were similar for each soil inoculum and ranged from 4 to 5 μmol day−1 for control and sand treatments to approximately 0.4 μmol day−1 in the presence of the SM7 sorptive phase. The rates of phenanthrene degradation in the highly sorptive SM2 enrichment culture were insignificant; consequently, stable microbial populations could not be obtained. Bacterial isolates obtained from serial dilutions of enrichment culture samples exhibited significant differences in rates of phenanthrene degradation performed in the presence of SM7, suggesting that enrichments performed in the presence of a sorptive phase selected for different microbial assemblages than control treatments containing solid phase phenanthrene.
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Sousa, D. Z., M. A. Pereira, J. I. Alves, H. Smidt, A. J. M. Stams, and M. M. Alves. "Anaerobic microbial LCFA degradation in bioreactors." Water Science and Technology 57, no. 3 (February 1, 2008): 439–44. http://dx.doi.org/10.2166/wst.2008.090.
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This paper reviews recent results obtained on long-chain fatty acids (LCFA) anaerobic degradation. Two LCFA were used as model substrates: oleate, a mono-unsaturated LCFA, and palmitate, a saturated LCFA, both abundant in LCFA-rich wastewaters. 16S rRNA gene analysis of sludge samples submitted to continuous oleate- and palmitate-feeding followed by batch degradation of the accumulated LCFA demonstrated that bacterial communities were dominated by members of the Clostridiaceae and Syntrophomonadaceae families. Archaeal populations were mainly comprised of hydrogen-consuming microorganisms belonging to the genus Methanobacterium, and acetate-utilizers from the genera Methanosaeta and Methanosarcina. Enrichment cultures growing on oleate and palmitate, in the absence or presence of sulfate, gave more insight into the major players involved in the degradation of unsaturated and saturated LCFA. Syntrophomonas-related species were identified as predominant microorganisms in all the enrichment cultures. Microorganisms clustering within the family Syntrophobacteraceae were identified in the methanogenic and sulfate-reducing enrichments growing on palmitate. Distinct bacterial consortia were developed in oleate and palmitate enrichments, and observed differences might be related to the different degrees of saturation of these two LCFA. A new obligately syntrophic bacterium, Syntrophomonas zehnderi, was isolated from an oleate-degrading culture and its presence in oleate-degrading sludges detected by 16S rRNA gene cloning and sequencing.
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Sousa, Diana Z., M. Alcina Pereira, Alfons J. M. Stams, M. Madalena Alves, and Hauke Smidt. "Microbial Communities Involved in Anaerobic Degradation of Unsaturated or Saturated Long-Chain Fatty Acids." Applied and Environmental Microbiology 73, no. 4 (December 8, 2006): 1054–64. http://dx.doi.org/10.1128/aem.01723-06.
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ABSTRACTAnaerobic long-chain fatty acid (LCFA)-degrading bacteria were identified by combining selective enrichment studies with molecular approaches. Two distinct enrichment cultures growing on unsaturated and saturated LCFAs were obtained by successive transfers in medium containing oleate and palmitate, respectively, as the sole carbon and energy sources. Changes in the microbial composition during enrichment were analyzed by denaturing gradient gel electrophoresis (DGGE) profiling of PCR-amplified 16S rRNA gene fragments. Prominent DGGE bands of the enrichment cultures were identified by 16S rRNA gene sequencing. A significant part of the retrieved 16S rRNA gene sequences was most similar to those of uncultured bacteria. Bacteria corresponding to predominant DGGE bands in oleate and palmitate enrichment cultures clustered with fatty acid-oxidizing bacteria withinSyntrophomonadaceaeandSyntrophobacteraceaefamilies. A low methane yield, corresponding to 9 to 18% of the theoretical value, was observed in the oleate enrichment, and acetate, produced according to the expected stoichiometry, was not further converted to methane. In the palmitate enrichment culture, the acetate produced was completely mineralized and a methane yield of 48 to 70% was achieved from palmitate degradation. Furthermore, the oleate enrichment culture was able to use palmitate without detectable changes in the DGGE profile. However, the palmitate-specialized consortia degraded oleate only after a lag phase of 3 months, after which the DGGE profile had changed. Two predominant bands appeared, and sequence analysis showed affiliation with theSyntrophomonasgenus. These bands were also present in the oleate enrichment culture, suggesting that these bacteria are directly involved in oleate degradation, emphasizing possible differences between the degradation of unsaturated and saturated LCFAs.
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Nixon, Sophie L., Jon P. Telling, Jemma L. Wadham, and Charles S. Cockell. "Viable cold-tolerant iron-reducing microorganisms in geographically diverse subglacial environments." Biogeosciences 14, no. 6 (March 21, 2017): 1445–55. http://dx.doi.org/10.5194/bg-14-1445-2017.
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Abstract. Subglacial environments are known to harbour metabolically diverse microbial communities. These microbial communities drive chemical weathering of underlying bedrock and influence the geochemistry of glacial meltwater. Despite its importance in weathering reactions, the microbial cycling of iron in subglacial environments, in particular the role of microbial iron reduction, is poorly understood. In this study we address the prevalence of viable iron-reducing microorganisms in subglacial sediments from five geographically isolated glaciers. Iron-reducing enrichment cultures were established with sediment from beneath Engabreen (Norway), Finsterwalderbreen (Svalbard), Leverett and Russell glaciers (Greenland), and Lower Wright Glacier (Antarctica). Rates of iron reduction were higher at 4 °C compared with 15 °C in all but one duplicated second-generation enrichment culture, indicative of cold-tolerant and perhaps cold-adapted iron reducers. Analysis of bacterial 16S rRNA genes indicates Desulfosporosinus were the dominant iron-reducing microorganisms in low-temperature Engabreen, Finsterwalderbreen and Lower Wright Glacier enrichments, and Geobacter dominated in Russell and Leverett enrichments. Results from this study suggest microbial iron reduction is widespread in subglacial environments and may have important implications for global biogeochemical iron cycling and export to marine ecosystems.
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Muenks, Carol E., Patrick G. Hogan, Carey-Ann D. Burnham, and Stephanie A. Fritz. "Comparing the Yield of Staphylococcus aureus Recovery with Static versus Agitated Broth Incubation." Journal of Pathogens 2018 (July 26, 2018): 1–3. http://dx.doi.org/10.1155/2018/1462671.
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Given the lack of standardization of methodologies for microbial recovery from built environments, we sought to compare the yield of Staphylococcus aureus with a broth enrichment method when incubated in agitated versus static conditions. Five unique strains of S. aureus at five different concentrations were cultured to compare direct plating, agitated broth enrichment, and static broth enrichment culture methods. All samples were incubated at 35° in ambient air. The lowest concentration recovered across three replicates and five strains did not differ between culture methods (Fisher’s exact test, p=0.50); notably, recovery of S. aureus was equivalent between static and agitated broth incubation. When broth enrichment was used (both static and agitated), the burden of S. aureus growth was higher (by semiquantitative assessment of 4-quadrant streaking) compared to the direct plating culture method. Optimizing strategies for microbial recovery is essential, particularly in areas of lower biomass, given the paucity of research concerning microbial communities of built environments. The results of this study, in conjunction with other experiments investigating microbiomes of built environments, can help inform protocols for standardizing culturing methods within built environments.
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Venkateswaran, Kasthuri, and Shigeaki Harayama. "Sequential enrichment of microbial populations exhibiting enhanced biodegradation of crude oil." Canadian Journal of Microbiology 41, no. 9 (September 1, 1995): 767–75. http://dx.doi.org/10.1139/m95-106.
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The distribution of oil-degrading bacteria in the coastal water and sediments of Hokkaido, Japan, was surveyed. The potential of mixed microbial populations to degrade weathered crude oil was not confined to any ecological components (water or sediment) nor to the sampling stations. One microbial culture that was stable during repeated subculturing degraded 45% of the saturates and 20% of the aromatics present in crude oil in 10 days during the initial screening. The residual hydrocarbons in this culture were extracted by chloroform and dispersed in a fresh seawater-based medium and subsequently inoculated with microorganisms from the first culture. After full growth of the second culture, the residual hydrocarbons were again extracted and dispersed in a fresh medium in which microorganisms from the second culture had been inoculated. This sequential process was carried out six times to enrich those microorganisms that grew on the recalcitrant components of crude oil. After repeated exposure of the residual crude oil to the enriched microorganisms, about 80% of the initially added crude oil was degraded. The cultures obtained after each enrichment cycle were kept, and the degradation of fresh crude oil by the enriched microorganisms was examined. The degradative activity of the enriched cultures increased as the number of enrichment cycles increased. A microbial population that had been selected six times on the residual crude oil could degrade 70% of the saturates and 30% of the aromatics of crude oil. Thus, growth of a microbial population on residual crude oil improved its ability to biodegrade crude oil.Key words: crude oil, biodegradation, sequential enrichment, saturated hydrocarbon, aromatic hydrocarbon.
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N� Chadhain, Sin�ad M., R. Sean Norman, Karen V. Pesce, Jerome J. Kukor, and Gerben J. Zylstra. "Microbial Dioxygenase Gene Population Shifts during Polycyclic Aromatic Hydrocarbon Biodegradation." Applied and Environmental Microbiology 72, no. 6 (June 2006): 4078–87. http://dx.doi.org/10.1128/aem.02969-05.
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ABSTRACT The degradation of polycyclic aromatic hydrocarbons (PAHs) by bacteria has been widely studied. While many pure cultures have been isolated and characterized for their ability to grow on PAHs, limited information is available on the diversity of microbes involved in PAH degradation in the environment. We have designed generic PCR primers targeting the gene fragment encoding the Rieske iron sulfur center common to all PAH dioxygenase enzymes. These Rieske primers were employed to track dioxygenase gene population shifts in soil enrichment cultures following exposure to naphthalene, phenanthrene, or pyrene. PAH degradation was monitored by gas chromatograph with flame ionization detection. DNA was extracted from the enrichment cultures following PAH degradation. 16S rRNA and Rieske gene fragments were PCR amplified from DNA extracted from each enrichment culture and an unamended treatment. The PCR products were cloned and sequenced. Molecular monitoring of the enrichment cultures before and after PAH degradation using denaturing gradient gel electrophoresis and 16S rRNA gene libraries suggests that specific phylotypes of bacteria were associated with the degradation of each PAH. Sequencing of the cloned Rieske gene fragments showed that different suites of genes were present in soil microbe populations under each enrichment culture condition. Many of the Rieske gene fragment sequences fell into clades which are distinct from the reference dioxygenase gene sequences used to design the PCR primers. The ability to profile not only the bacterial community but also the dioxygenases which they encode provides a powerful tool for both assessing bioremediation potential in the environment and for the discovery of novel dioxygenase genes.
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MURAKAMI, TAKU. "Filter-Based Pathogen Enrichment Technology for Detection of Multiple Viable Foodborne Pathogens in 1 Day." Journal of Food Protection 75, no. 9 (September 1, 2012): 1603–10. http://dx.doi.org/10.4315/0362-028x.jfp-12-039.
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Conventional foodborne pathogen assays currently used in the food industry often require long culture enrichments to increase pathogen levels so they can be detected. Even using sensitive real-time PCR assays, culture enrichment at least overnight is necessary especially for detection of pathogens with slow growth rates such as Listeria monocytogenes. To eliminate this cumbersome enrichment step and detect minute amounts of pathogens within 1 day, filter-based pathogen enrichment technology was developed utilizing a unique combination of glass fiber depth filter and porous filter aid materials to efficiently separate pathogens from food homogenates and avoid filter clogging by food particles. After pathogen immobilization in depth filters, only viable pathogens were selectively collected in a small volume of growth medium via microbial multiplication and migration; nonviable pathogens remained inside the filters. By assaying viable pathogens using real-time PCRs, multiple species of foodborne pathogens were detected, including L. monocytogenes, Salmonella enterica, and Escherichia coli O157:H7, at around 1 CFU/ml or 1 CFU/g in various food samples. This filter-based pathogen enrichment technology is a unique bacterial enrichment alternative to the conventional culture enrichment step and can significantly shorten the time necessary to obtain assay results.
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Yoochatchaval, W., S. Kumakura, D. Tanikawa, T. Yamaguchi, M. F. M. Yunus, S. S. Chen, K. Kubota, H. Harada, and K. Syutsubo. "Anaerobic degradation of palm oil mill effluent (POME)." Water Science and Technology 64, no. 10 (November 1, 2011): 2001–8. http://dx.doi.org/10.2166/wst.2011.782.
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The biodegradation characteristics of palm oil mill effluent (POME) and the related microbial community were studied in both actual sequential anaerobic ponds in Malaysia and enrichment cultures. The significant degradation of the POME was observed in the second pond, in which the temperature was 35–37 °C. In this pond, biodegradation of major long chain fatty acids (LCFA), such as palmitic acid (C16:0) and oleic acid (C18:1), was also confirmed. The enrichment culture experiment was conducted with different feeding substrates, i.e. POME, C16:0 and C18:1, at 35 °C. Good recovery of methane indicated biodegradation of feeds in the POME and C16:0 enrichments. The methane production rate of the C18:1 enrichment was slower than other substrates and inhibition of methanogenesis was frequently observed. Denaturing gradient gel electrophoresis (DGGE) analyses indicated the existence of LCFA-degrading bacteria, such as the genus Syntrophus and Syntorophomonas, in all enrichment cultures operated at 35 °C. Anaerobic degradation of the POME under mesophilic conditions was stably processed as compared with thermophilic conditions.
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Köpke, Beate, Reinhard Wilms, Bert Engelen, Heribert Cypionka, and Henrik Sass. "Microbial Diversity in Coastal Subsurface Sediments: a Cultivation Approach Using Various Electron Acceptors and Substrate Gradients." Applied and Environmental Microbiology 71, no. 12 (December 2005): 7819–30. http://dx.doi.org/10.1128/aem.71.12.7819-7830.2005.
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ABSTRACT Microbial communities in coastal subsurface sediments are scarcely investigated and have escaped attention so far. But since they are likely to play an important role in biogeochemical cycles, knowledge of their composition and ecological adaptations is important. Microbial communities in tidal sediments were investigated along the geochemical gradients from the surface down to a depth of 5.5 m. Most-probable-number (MPN) series were prepared with a variety of different carbon substrates, each at a low concentration, in combination with different electron acceptors such as iron and manganese oxides. These achieved remarkably high cultivation efficiencies (up to 23% of the total cell counts) along the upper 200 cm. In the deeper sediment layers, MPN counts dropped significantly. Parallel to the liquid enrichment cultures in the MPN series, gradient cultures with embedded sediment subcores were prepared as an additional enrichment approach. In total, 112 pure cultures were isolated; they could be grouped into 53 different operational taxonomic units (OTU). The isolates belonged to the Proteobacteria, “Bacteroidetes,” “Fusobacteria,” Actinobacteria, and “Firmicutes.” Each cultivation approach yielded a specific set of isolates that in general were restricted to this single isolation procedure. Analysis of the enrichment cultures by PCR and denaturing gradient gel electrophoresis revealed an even higher diversity in the primary enrichments that was only partially reflected by the culture collection. The majority of the isolates grew well under anoxic conditions, by fermentation, or by anaerobic respiration with nitrate, sulfate, ferrihydrite, or manganese oxides as electron acceptors.
Dissertations / Theses on the topic "Microbial culture enrichment"
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De, Luca Leandra Anali. "Optimizing the nitrogen removal in leachate treatment during continuous-flow biological treatment (KBR)." Thesis, KTH, Industriell bioteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298112.
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Användandet av deponier är en av de vanligaste metoderna för avfallshantering globalt. Trots insatser som gjordes för att förbjuda hushållsavfall i deponier under millennieskiftet, deponier skapade innan restriktionerna är fortfarande en risk för miljön. Under 2014 öppnade SÖRAB en kontinuerlig biologisk reningsanläggning (KBR-anläggning) på Löt Avfallsanläggning för att hantera lakvatten från en gammal deponi som under en tid fylldes med hushållsavfall. Sedan dess har SÖRAB arbetat med att förbättra KBR-anläggningen. Målet med denna studie är att utforma en driftstrategi för KBR-anläggningen för att förbättra kvävereningen vid låga temperaturer. Ett antal laborativa försök genomfördes, såsom den mikrobiella konsortiets livsduglighet i lakvattnet och tillväxten i både rumstemperatur och vid 4°C, bioaugmentation genom att berika den mikrobiella cellkulturen som redan finns i lakvattnet och hur detta förbättrar kvävereningen i jämförelse med tillsatser av den kommersiella bakterieblandningen ClearBlu Environmental och andra externa kolkällor. Resultaten från dessa laborativa försök påvisade komplett nitrifikation i både rumstemperatur och 4°C i berikat lakvatten från KBR-anläggningens L2A bassäng efter fem dagar. Försöket visade även på syresatt denitrifikation. Dessutom påvisades komplett denitrifikation inom fem dagar, vid rumstemperatur i lakvatten från anläggningens L2B bassäng. Under efterföljande pilotförsök påvisades möjligheten till upplivandet av den biologiska kvävereningen genom berikningen av den mikrobiella cellkulturen i lakvattnet. I ett pilotförsök då lakvatten från L2B bassängen berikades, komplett denitrifikation skedde under en anaerob fas på 16 dagar samt nitrifikation och aerob denitrifikation under ett påföljande 17 dagar lång aerob fas. Ett annat pilotförsök då lakvatten från L2A bassängen berikades påvisade både aerob och anaerob nitrifikation, då ammoniumrening skedde i både den syresatta och syrefria fasen. Tillsatsen av nutrient broth (näringsbuljong) kan påverka KBR-anläggningen, vilket kväver vidare studier. Resultatet från detta projekt tydligt påvisar att kvävereningen i KBR-anläggningen kan förbättras genom att berika den redan närvarande mikrobiella kulturen.Landfilling has been one of the most popular methods of handling waste globally. Despite the efforts made to stop the disposal of household waste during the turn of the millennia, the landfills formed before these restrictions are still at risk for causing harm to the environment. In 2014, SÖRAB opened a continuous-flow biological treatment (KBR) facility in Löt to treat the leachate produced in one of their older landfills, once filled with household waste. Since then, SÖRAB has been working on improving the treatment facility. The aim of this the study is to find a suitable process to enhance the nitrogen removal at low temperature. Several laboratory scale experiments were performed, such as viability of microbial consortia in the leachate and growth at room temperature and at 4°C, testing bioaugmentation by enriching the microbial cell culture in the leachate and their efficiency in removing nitrogen, compared to the commercial cell culture ClearBlu Environmental and carbon source addition. The results displayed complete nitrification at both room temperature and 4°C in bioaugmented, enriched leachate originating from the L2A basin of the KBR facility, after five days. These trials also suggested the occurrence of aerated denitrification. Complete denitrification within five days was seen at room temperature in bioaugmented, enriched leachate from the L2B basin of the same facility. The ensuing pilot scale trials proved the possibility to revive the biological nitrogen removal by microbial cell culture enrichment. In one pilot in which leachate from the L2B basin was enriched, complete denitrification in the anaerobic phase consisting of 16 days occurred, along with some nitrification and aerated denitrification in the 17 day long aerated phase that followed. Another pilot scale trail in which leachate from the L2A basin was enriched, both aerobic and anaerobic nitrification occurred, as ammonium removal occurred in both the aerated and unaerated phases. The addition of nutrient broth might influence the KBR system which needs further study. The results from this project clearly demonstrate that nitrogen removal in the KBR facility could be enhanced using a culture naturally present in the facility.
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Copp, Clinton W. "Production and Degradation of 4-Ethylphenol in LACTOBACILLUS SP. pep8 Cultures and in Blended Swine Lagoon Enrichments." TopSCHOLAR®, 2012. http://digitalcommons.wku.edu/theses/1189.
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4-Ethylphenol (4-EP) is a malodorant of swine waste and is derived from a component of lignin called p-coumaric acid (p-CA). The production of 4-EP from lignin in swine waste is untested. Additionally, the effect of Fe (III) on 4-EP levels is unknown. Four experiments were performed to determine if Lactobacillus sp. pep8 cultures, as well as enriched swine lagoon slurries, could liberate p-CA from lignin and convert p-CA to 4-EP. Furthermore, it was tested if the addition of Fe (III) influences the conversion of p- CA to 4-EP.
Experiment 1 tested Lactobacillus sp. pep8 cultures to determine if the addition of 10 mM Fe (III) and 0.2% sulphite lignin to Lactobacillussp. pep8 cultures would stimulate production of 4-EP.
Experiment 2 tested the effect of 0.2% sulphite lignin and 10 mM Fe (III) on 4-EP production in the presence of enriched swine lagoon slurries. On day 0 there was no detectable 4‐EP, for either 0.2% sulphite lignin addition or the 10 mmol l‐1 Fe (III) additions.
Experiment 3 tested alternative forms of lignin, including 0.2% sulphite, indulin, or sigma lignin as potential source compounds for 4-EP production in enriched swine lagoon slurries. 4-EP produced in all three conditions are likely endogenous to the lagoon slurry additions.
Experiment 4 was designed to measure the degradation of exogenous 4-EP with varying final concentrations of 4-EP in enriched swine lagoon slurries. Data in Figure 7 indicate immediate degradation of 4-EP by day 5, however, by day 7 synthesis of 4-EP occurred until day 14 where 4-EP levels remained in a steady state.
Our results suggest that when both Lactobacillus sp. pep8 cultures and enriched swine lagoons are supplemented with p-CA, 4-EP is produced indicating that p-CA serves as a source of 4-EP. However, when supplemented with Fe (III) and/or sulphite, indulin, or sigma lignin, 4-EP production was not stimulated. This data indicates that, 4- EP production is not enhanced by the presence of Fe (III) in either Lactobacillus sp. pep8 cultures or in enriched swine lagoon slurries. Furthermore, lignin did not serve as a source of 4-EP.
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Schebor, Hayley A. "Ammonia-oxidizing bacteria and archaea across a freshwater trophic gradient." Miami University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=miami1407092663.
Full textBooks on the topic "Microbial culture enrichment"
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Dinglasan, Mary Joyce. Enrichment, characterization and isolation of 1,2-dichloroethane-degrading microbial cultures under various conditions. 2003, 2003.
Find full textBook chapters on the topic "Microbial culture enrichment"
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Ward, David M., Michael J. Ferris, Stephen C. Nold, Mary M. Bateson, Eric D. Kopczynski, and Alyson L. Ruff-Roberts. "Species diversity in hot spring microbial mats as revealed by both molecular and enrichment culture approaches — relationship between biodiversity and community structure." In Microbial Mats, 33–44. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78991-5_3.
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Caron, David A. "Enrichment, Isolation, and Culture of Free-Living Heterotrophic Flagellates." In Handbook of Methods in Aquatic Microbial Ecology, 77–89. CRC Press, 2018. http://dx.doi.org/10.1201/9780203752746-10.
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"Identifying Novel Microbial Catalysis by Enrichment Culture and Screening." In Biocatalysis and Biodegradation, 27–38. Washington, DC, USA: ASM Press, 2014. http://dx.doi.org/10.1128/9781555818036.ch3.
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Josef, J. A., M. R. Fisk, and S. Giovannoni. "Peridotite Dissolution Rates in Microbial Enrichment Cultures." In Proceedings of the Ocean Drilling Program. Ocean Drilling Program, 2007. http://dx.doi.org/10.2973/odp.proc.sr.209.002.2007.
Full textConference papers on the topic "Microbial culture enrichment"
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Huang, Yu-Ming, Daniel Straub, Nia Blackwell, Andreas Kappler, and Sara Kleindienst. "Meta'omics Reveal Insights into Microbial Fe(II) Oxidation Coupled to Nitrate Reduction in Freshwater Enrichment Cultures." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.1102.
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