Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 65 for “"mixed culture"”.
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Nitrogen Fixation By Azotobacter Species In Mixed Culture
… ammonia will accumulate in the medium of pure cultures of Azotobacter vinelandii until levels become high enough to repress nitrogenase synthesis. A. vinelandii and A. chroococcum were grown in mixed culture with yeasts and bacterial soil isolates in a nitrogen free medium. It was theorized …
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Mixed culture : experienced through a center for the mind and body
The term "Mixed Culture" refers to the sociological condition experienced by those who have a cultural heritage which is different from the culture in which they were raised or live in. In this mixture, there are characteristics from either that remain distinct, yet coexist. I identify myself and …
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Influence of Indole and Mixed Culture Growth on Pseudomonas Aeruginosa Biofilm Structure
… signals had altered biofilm structure. During mixed culture growth of P. aeruginosa with Escherichia coli, we found that E. coli production of the organic compound, indole, inhibited AHL-regulated genes in P. aeruginosa. The current study was conducted to see if mixed culture growth of P. …
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Bicarbonate trigger in mixed culture of algae increases carbohydrate content of biomass
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms
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Biological Conversion Process of Methane into Methanol Using Mixed Culture Methanotrophic Bacteria Enriched from Activated Sludge System
… were the highest reported in mixed cultures. Furthermore, the maximum methanol productivity achieved is comparable with pure cultures and equal to 211581 mg/L/day. Whereas, methanol concentration of 48521 mg/L was attained which is two times higher than the reported using mixed …
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Direct conversion of cellulosic biomass to ethanol by mixed culture fermentation of Clostridium thermocellum and Clostridium thermosaccharolyticum
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Nutrition and Food Science, 1982.
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Whole Genome Analysis of Escherichia coli and Pseudomonas aeruginosa Mixed Culture Biofilms Grown for 117 Days in Spaceflight
… In an unexpected event, an experiment where mixed-culture biofilms of Escherichia coli strain F11 and Pseudomonas aeruginosa strain PA01 sent into space with SpaceX CRS-21 to analyze the effects of microgravity were left untouched for 117 days. Viable cells were found in some samples leading …
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The effect of temperature upon the growth and metabolism of aeromonas hydrophila and lactobacillus plantarum in pure and mixed culture
… upon the growth and metabolism of pure and mixed populations of Aeromonas hydrophila and Lactobacillus p/an/Qrum were studied. Initially a medium was developed to provide unbiased support for both organisms. The effect of temperature upon lag phase, growth rate, and final population level …
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Bioindicators of Reductive Dechlorination in a Dehalococcoides ethenogenes-Containing Mixed Culture: Transcriptional Trends With Respect to Substrate Type, Substrate Concentration, and Culture Operation
… ethenogenes strain 195 (DET)-containing mixed culture (D2) capable of reductively dechlorinating tetrachloroethene (PCE) successively to trichloroethene (TCE), cis-1,2-dichloroethene (cDCE), vinyl chloride (VC), and non-toxic ethene using H2 as electron donor. Gene transcripts associated …
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Simulation studies to profile development and control of mixed-culture static and dynamic biofilms during extended raw beef processing operations using combinations of nanobubble water and peracetic acid
… simulated beef processing conditions—even though mixed-species biofilms remain the most common form encountered in real-world settings. This research evaluates the application of nanobubble water (NW)—recognized for its potential antimicrobial properties—in combination with peroxyacetic acid …
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Effect of glycosidases and proteases on biofilms formed on black buna-N rubber
… bacteria attached to black buna-N rubber. Pure culture and mixed culture biofilms of Pseudomonas fluorescens and Listeria monocytogenes were treated with the proteolytic enzymes Purafect® (Genencor International), Durazym™, and Savinase® and the glycolytic enzyme Termamyl® (Novo Nordisk BioChem …
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Sanitizer efficacy towards attached bacteria in a simulated milk pipeline system using pure and mixed cultures
… and Teflon® gasket surfaces in either pure or mixed cultures. Differences in initial attachment rates were evident in a mixed culture of P. fluorescens, Y. enterocolitica, and Listeria monocytogenes in vitro. Sanitizer effectiveness depended upon the bacterium being enumerated, the type of …
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Pseudomonas spp. Isolated from the Soybean Nodule Interior Promote Soybean Growth upon Field Amendment
… on amending the plant with isolated strains or a mixed culture of the species' strains. Two cultivars of soybean (Asgrow AG46X6 and Pioneer P48A60X) were either amended with isolated strains of the novel Pseudomonas spp. (referred to as PAMW1 and BUMW2 in this study), a mix of the two strains, or …
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Environmental proteome profiling applied to the study of polybacterial metal resistance and adaptation
… used to investigate the proteome of a sequenced mixed culture, an unsequenced mixed culture, and a bacterial isolate from the original unsequenced mixed culture. In the first case study, two soil organisms were grown in co-culture in an attempt to observe proteins induced as a response to the …
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Influence of vegetation on sediment bacterial community structure, microbial enzyme activities and phosphorus retention in constructed freshwater wetlands
… Dichanthelium acuminatum var. acuminatum in monoculture or mixed culture. </p> <p>To study the influence of vegetation on the bacterial community structure and microbial enzyme activities, sediment samples were taken from monoculture mesocosms in the greenhouse. β-1,4-glucosidase, phosphatase, …
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Inhibition of Proteus Swarming by the Metabolic Products of Serratia Marcescens
… | The presence of swarming species of Proteus in mixed culture with other bacteria has always presented a problem of isolating the latter in clinical specimens. Many methods have been devised for preventing the swarming of Proteus species with varying degrees of success. For example, an increase …
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A study of the effect of dilution rate on bacterial populations
Population levels of a mixed culture that was ambiently exposed to bacteria in the atmosphere was studied at various constant dilution rates. Random fluctuations in the free swimmer population were noted. An aseptic continuous flow system proved of no great advantage over that which had ambient …
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