Wyniki wyszukiwania dla: psychrophilic microorganism
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Microorganisms in the air within the Gdańsk-Szadółki landfill and adjacent area in 2016
Dane BadawczeThe data collection contains the results of microbiological examination of air samples collected at Gdańsk Szadółki Landfill (Poland). The Gdańsk Szadółki Landfill is one of the biggest of facilities of this type in the country. It occupies an area of 75 hectares and serves around 500 thousand of local residents. The landfill receives around 250 million...
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Microorganisms in the air within the Gdańsk-Szadółki landfill and adjacent area in 2017
Dane BadawczeThis data set contains the results of microbiological examination of air samples collected at Gdańsk Szadółki Landfill (Poland) in 2017. The range of examination included qualitative and quantitative assesment of selected species of bacteria and mold fungi, with particular focus on pathogenic and potentially pathogenic fungi and bacteria. The collected...
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Microorganisms in the air within the Gdańsk-Szadółki landfill and adjacent area in 2019
Dane BadawczeThis data set contains the results of microbiological examination of air samples collected at Gdańsk Szadółki Landfill (Poland) in 2019. The range of examination included qualitative and quantitative assesment of selected species of bacteria and mold fungi, with particular focus on pathogenic and potentially pathogenic fungi and bacteria. The collected...
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Rozdział 6. Epidemiologia molekularna - nowe metody typowania diagnostycznego mikroorganizmów = Molecular epidemiology new methods for diagnostic typing of microorganismus
PublikacjaMolekularne metody diagnostyczne oparte o analizę kwasów nukleinowych dają nowe możliwości laboratoriom w szybkim wykrywaniu i różnicowaniu mikroorganizmów patogennych. W pracy przedstawiono panujące tendencje w zastosowaniach metod typowania genetycznego znaczących klinicznie mikroorganizmów w Europie, a także omówiono niektóre techniki stosowane w laboratoriach mikrobiologicznych, z uwzględnieniem ich zdolności aplikacyjnych,...
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Impact of Biometric Patient Data, Probiotic Supplementation, and Selected Gut Microorganisms on Calprotectin, Zonulin, and sIgA Concentrations in the Stool of Adults Aged 18–74 Years
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Gas‐Phase Removal of Indoor Volatile Organic Compounds and Airborne Microorganisms Over Mono‐ and Bimetal‐Modified (Pt, Cu, Ag) Titanium(IV) Oxide Nanocomposites
PublikacjaThe photocatalytic deactivation of volatile organic compounds and mold fungi using TiO2 modified with mono‐ and bimetallic (Pt, Cu, Ag) particles is reported in this study. The mono‐ and bimetal‐modified (Pt, Cu, Ag) titanium(IV) oxide photocatalysts were prepared by chemical reduction method and characterized using XRD, XPS, DR/UV‐Vis, BET and TEM analysis. The effect of incident light, type and content of mono‐ and bimetallic...
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Beata Krawczyk dr hab.
Osobydr hab. Beata Krawczyk, prof. uczelni Stopnie naukowe, wykształcenie, kwalifikacje Beata Krawczyk uzyskała tytuł magistra biologii na Wydziale Biologii (wówczas: Wydział Biologii i Nauk o Ziemi), Uniwersytetu Gdańskiego w 1986 roku, a doktorat z biologii molekularnej na Wydziale Biologii (wówczas: Wydział Biologii, Geografii i Oceanologii) Uniwersytetu Gdańskiego w 1996 roku. Stopień doktora habilitowanego w zakresie nauk biologicznych...
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Beta-galactosidases from a psychrotolerant Arthrobacter isolates and their potential use
PublikacjaEnzymes from extremophiles, especially psychrophiles and psychrotolerant microorganisms are currently intensively studied because of their unusual structural and functional properties. One of these enzymes is a cold-adapted - galactosidase (EC 3.2.1.23) which catalyzes the hydrolysis of - 1,4-glycosidic bonds in -galactosides. The most common - galactoside is lactose, a disaccharide which makes up 2-7% of milk. The majority of...
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Determination of the total number of microorganisms in a model food product preserved by CS-2a and CS-2b.
Dane BadawczeThe dataset contains the results of determination of the total number of microorganisms in a model food product after the use of the innovative preservatives: CS-2a and CS-2b and control (K) after seven days of refrigerated storage of the product. The test was performed using the surface inoculation method.
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Biological hazards in low noise, poroelastic road surfaces
PublikacjaDrainage pavements as well as poroelastic pavements ("PERS") are a very efficient way to decrease traffic noise by reducing tire/road noise at the source as well as noise propagation over the road surface. Many noise generating mechanisms at the tire/road interface are very much reduced by road porosity (pipe resonance, "air pumping", Helmholtz resonance and the horn effect). A well-designed porous or poroelastic road surface may...
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Anna-Karina Kaczorowska Dr n med.
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Association between Gut Dysbiosis and the Occurrence of SIBO, LIBO, SIFO and IMO
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The Medical Relevance of Toxoplasma Infections in Terms of the Safety of Blood Recipients under Immunosuppression—A Meta-Analysis
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The Influence of Hydrodynamic Conditions in a Laboratory-Scale Bioreactor on Pseudomonas aeruginosa Metabolite Production
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Urobiome: In Sickness and in Health
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Response Surface Methodology Application for Bacteriophage–Antibiotic Antibiofilm Activity Optimization
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Characterization of the Three New Kayviruses and Their Lytic Activity Against Multidrug-Resistant Staphylococcus aureus
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Recent Advances in Understanding, Diagnosing, and Treating Hepatitis B Virus Infection
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The Many Faces of Enterococcus spp.—Commensal, Probiotic and Opportunistic Pathogen
PublikacjaEnterococcus spp. are Gram-positive, facultative, anaerobic cocci, which are found in the intestinal flora and, less frequently, in the vagina or mouth. Enterococcus faecalis and Enterococcus faecium are the most common species found in humans. As commensals, enterococci colonize the digestive system and participate in the modulation of the immune system in humans and animals. For many years reference enterococcal strains have...
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The Effect of Posaconazole, Itraconazole and Voriconazole in the Culture Medium on Aspergillus fumigatus Triazole Resistance
PublikacjaTriazoles are the only compounds used as antibiotics in both medicine and agriculture. The presence of triazoles in the environment can contribute to the acquisition of azole resistance among isolates of Aspergillus fumigatus. The objective of this study was to investigate the effect of A. fumigatus exposure to triazoles on susceptibility to these compounds. Seventeen triazole-resistant and 21 triazole-sensitive A. fumigatus isolates...
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Assessment of the impact of bacteria Pseudomonas denitrificans, Pseudomonas fluorescens, Bacillus subtilis and yeast Yarrowia lipolytica on commercial poly(ether urethanes)
PublikacjaThe assessment of the impact of the bacteria Pseudomonas denitrificans, Pseudomonas fluorescens, Bacillus subtilis and yeast Yarrowia lipolytica on commercial poly(ether urethanes) Tecoflex® and Tecothane® is presented. The polyurethane samples were incubated with pure cultures of the microorganisms at 30 °C for five months. The changes in the chemical structure of the polymers were evaluated using loss of weight and contact angle...
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Photoinactivation of Staphylococcus aureus using protoporphyrin IX: the role of haem-regulated transporter HrtA
PublikacjaLight- and photosensitiser-based antimicrobial photodynamic therapy is a very promising approach to the control of microbial infections. How the phenotypic features of a microorganism affect its response to photosensitiser-based photokilling represents an area of substantial research interest. To understand the mechanisms governing the phenomenon of a strain-dependent response to photodynamic inactivation (PDI), we analysed the...
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Seasonal variability and morphological structure of bacteria in the Admiralty Bay (King George Island, Antarctic).
PublikacjaIntroduction: The aim of investigations was to state whether melting glaciers cause mass mortality of the sea stenohalyne organisms, what in consequence can lead to an increase of accumulation and growth of psychrophilic bacteria. It may be also that fresh melting water is unfavourable to the sea bacteria and front glacier's regions are not the areas of their intensive development. Methods: Field investigations were done in Admiralty...
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BIODIVERSITY OF YEASTS ISOLATED FROM CAVES OF THE POLISH TATRA MOUNTAINS, AND ITS BIOTECHNOLOGICAL POTENTIAL
PublikacjaMost of the Earth’s biosphere is permanently or periodically exposed to temperatures below 5°C. Cold habitats harbor a wide diversity of psychrophiles. For many years Antarctica has been the geographic area preferred for studying the diversity and properties of cold-adapted microorganisms. However, the non-Antarctic habitats like Himalayas or Alps are also extensively explored. The Tatra Mountains are Europe’s second-highest massif...
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Microbiology
Kursy OnlineMicrobiology interactive lectures are dedicated to those who are interested in the role of microorganisms on our planet and their interaction with other living organisms and inorganic elements as well as more complex chemical compounds.
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Review on mechanisms and efficiency of removal of microbiological contaminants in constructed wetlands
PublikacjaConstructed wetlands (CW) have been considered as a waste and a stormwater treatment systems for small communities or for areas with unsteady sewage flow conditions. Several investigations were undertaken for estimation suspended solids, organic matter and nutrients efficiency removal but only few focused on retention of microorganisms in constructed wetlands. In this review mechanisms of elimination of viruses, indicator bacteria...
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Degradation of polycaprolactone modified with TPS or CaCO3 in biotic/abiotic seawater
PublikacjaThis paper is an investigation of the polymer degradation process in two types of seawater (with and without microorganisms) sourced from the Baltic Sea. The chosen polymeric materials were polycaprolactone modified with either thermoplastic starch (PCL/TPS>85%) or calcium carbonate (60% PCL/40% CaCO3) compared directly against unmodified polycaprolactone. All samples were incubated for 28 weeks in seawater with and without microorganisms...
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Rain Gardens SW quality dataset
Dane BadawczeThis dataset contains the results of parameters of storm water runoff and storm water quality in rain garden units. Samples were collected from 4 different rain gardens in Gdansk, Poland.
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Bioaugmentation of a sequencing batch reactor with Archaea for the treatment of reject water
PublikacjaIn this study, the bioaugmentation of a sequencing batch reactor (SBR) for the treatment of reject water from wastewater treatment plant was evaluated. For the bioaugmentation step a product containing an enrichment of microorganisms from the Archaea domain was used to enhance the performance of the reactor for treating reject water. The experiment was carried out in two parallel lab-scale sequencing batch reactors. The first one...
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Types of Treatment Wetlands
PublikacjaThe removal of pollutants in treatment wetland systems is the result of the sorption of biochemical pollutants, redox reactions, and a biological activity of microorganisms as well as hydrophytes plants.
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Paweł Filipkowski dr inż.
Osobymgr inż - Uniwersytet Przyrodniczy we Wrocławiu, Wydział Nauk o Żywności, Katedra Mikrobiologii Technicznej i Żywnosci, Prof. Maria Wojtatowicz/ Prof. Waldemar Rymowicz, adiunkt - Uniwersytet Ekonomiczny we Wrocławiu, Wydział Inzynieryjno-Ekonomiczny, Katedra Inżynierii Bioprocesowej, Prof. Tadeusz Miśkiewicz/ Prof. Edward Cybis, dr - Politechnika Gdańska, Wydział Chemiczny, Katedra Mikrobiologii, ś.p. Prof. Józef Kur, Staże w...
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Production of trehalose in a single step enzymatic reaction
PublikacjaThe aim of this study was isolation and cloning of trehalose synthase gene derived from extremophilic microorganisms Deinoccoci to the expressive E. coli vectors and its biosythesis in different hosts.
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Rhodotorulic Acid and its Derivatives: Synthesis, Properties, and Applications
PublikacjaSiderophores are low molecular weight compounds produced by microorganisms to scavenge iron in iron-deficient environments. Rhodotorulic acid (RA), a natural hydroxamate siderophore, plays a vital role in iron acquisition for fungi and bacteria. As the simplest natural hydroxamate siderophore, RA exhibits a high affinity for ferric ions, enabling it to form stable complexes that facilitate iron uptake and transport within microorganisms....
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Characterization of novel trehalose synthase from Deinococcus geothermalis.
PublikacjaThe method of trehalose extraction from yeast or othernatural sources is unsuitable for industrial production becauseof its low yield and high cost. Thus, the trehalose synthesizingenzyme systems that originated from a few microorganisms have been investigated.
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Cloning, Expression and Purification of Wild-Type Trehalose Synthase from Deinococcus geothermalis
PublikacjaThe aim of this study was isolation and cloning of trehalose synthase gene derived from extremophilic microorganism to the expression vectors in the Tabor-Studier system and its expression in Rosetta(DE3)pLysS Escherichia coli cells. The second phase of the study consisted of proteins purification using an initial denaturation of host proteins and salting-out proteins by ammonium sulfate.
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Isolation and properties of recombinant trehalose synthase
PublikacjaBiosynthesis of trehalose is carried out via various matabolic pathways, including the use of trehalose synthase. Bacteria of the genus Deionococcus are microorganisms which produce trehalose synthase catalizing conversion of maltose into trehalose. In this work recombinant trehalose synthase from D.radiodurans was characterized.
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Possibility of Using Tea Fungus for Fermentation of Beetroot and Carrot Pomace Beverages
PublikacjaFermented beverages obtained from plant-based raw materials are becoming more popular due to their beneficial effects on human health. These include kombucha beverages, which are obtained by fermenting tea brew using the so-called tea fungus, which includes acetic acid bacteria and osmophilic yeast. A consortium of these microorganisms could also be used to prepare functional fermented beverages obtained from extracts of vegetable...
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Rhodotorulic Acid and its Derivatives: Synthesis, Properties, and Applications
PublikacjaSiderophores are low molecular weight compounds produced by microorganisms to scavenge iron in iron-deficient environments. Rhodotorulic acid, a natural hydroxamate siderophore, plays a vital role in iron acquisition for fungi and bacteria. As the simplest natural hydroxamate siderophore, it exhibits a high affinity for ferric ions, enabling it to form stable complexes that facilitate iron uptake and transport within microorganisms....
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Risks caused by microbiologically influenced corrosion in diesel fuel storage tanks
PublikacjaMicrobiologically influenced corrosion (MIC) poses serious problems for the petrochemical and refinery industries. Particularly favourable conditions for MIC arise in storage tanks and transmission pipelines for mixtures of diesel oil with the addition of a biocomponent (in Poland 7%). The best conditions for the development of MIC occur at the fuel-water interface, where microorganisms are provided with a source of food and water,...
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Cyanobacterial blooms in the Gulf of Gdańsk - photo archvive
Dane BadawczeCyanobacterial blooms are recorded in the Gulf of Gdańsk every summer. The dataset contains 20 photographs of the blooms of these microorganisms taken between 2004 and 2012. In addition to the photos, the dataset also contains a file with supporting information, such as the coordinates of the point where the photo was taken, the salinity and temperature...
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Polymer biodegradable coatings as active substance release systems for urological applications
PublikacjaCatheter-associated urinary tract infections are the result of catheterization of the bladder. The risk of infection is directly proportional to the length of the bladder catheterization. Bacteria cells have the ability to adhere and create the biofilm on the surface of catheter materials. Bacteria’s biofilm is an extremely beneficial environment of existence for microorganisms. Microorganisms that are an integral part of the biofilm...
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Stardust - Investigation of Microbes in the Stratosphere
PublikacjaThe stratospheric microbiome has been investigated several times using the methods of classical microbiology. In this experiment, we have combined them with some novel approaches including whole- metagenome amplification, Maldi TOF mass spectrometry and Sanger DNA sequencing. The results of the experiment may provide the scientists with knowledge about the mechanisms of survivability of microorganisms in stratospheric conditions...
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The influence of moderate pressure and subzero temperature on the shelf life of minced cod, salmon, pork and beef meat
PublikacjaThe effect of moderate pressure at subzero temperature on natural microflora of minced cod, salmony, pork and beef meat was studied. Pressure of 193 MPa at –20 °C caused reduction of total bacterial count in pork and beef meat by 1.1 and 0.6 log cycles, respectively, and by about 1.5 log cycles in fish meat. Under these conditions the psychrophilic and psychrotophic bacteria were below the detection limit (<10CFU/g of sample) in...
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Characteristic and specificity of protease activity of thermophilic bacteria Meiothermus ruber
PublikacjaThe primary purpose of research was to establish the possibility of using thermophilic bacteria Meiothermus ruber as a source of proteolytic enzymes. The main reason of searching new proteases is their commercial value especially in production of detergents, food, pharmaceuticals, leather, diagnostics or waste management. The development of this type processes will be possible by utilization of enzymes which have unique characteristics...
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Flow cytometric approach to evaluate the impact of hydro-technical concrete compounds’ release to the freshwater microbiome
PublikacjaThe aim of this research was to test the potential of applying a flow cytometric procedure to evaluate the impact of concrete compounds’ release to the freshwater microbiome. Cells from the collected samples were stained with a fluorogenic redox indicator dye that measures the redox potential of microbial cells. This novel approach was combined with the assessment of microorganisms’ penetration into the internal structures of concrete...
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Degradation of xylose using a microbial fuel cell
PublikacjaIt is generally known, that many kind of microorganisms are capable of using carbohydrates as a source of carbon and energy in an environment. The biodegradation process of monosaccharides from pentoses (in this case- racemic mixture of D - and L – xylose) is an immense opportunity for an entire reduction of biological contamination to neutral compounds through MFC. The process is occurred in a single-chamber MFC, which is contained...
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The use of various species of fungi in biofiltration of air contaminated with odorous volatile organic compounds
PublikacjaAir pollution with odorous compounds is a significant social and environmental problem. This paper presents biological deodorization methods. The attention is focused on the application of biotrickling filters for air deodorization. Principles of their operation are discussed, indicating the key role of the selection of microorganisms responsible for the degradation of odorous compounds. A literature overview of the used fungal...
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Satish Raina prof. dr
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The Influent Effects of Flow Rate Profile on thePerformance of Microbial Fuel Cells Model
PublikacjaThe energy contained in wastewaters has been identified as a promising sustainableenergy resource that could be harvested by using microbial fuel cells (MFC). When dealing with realwastewaters, the MFCs should be able to manage high flow rates and flow rates fluctuations. In thiswork, the short-term effects of the influent flow rate variations on the performance of a microbialfuel cell has been studied. With this aim, the influent...
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Mass spectrometric identification of 13C-Labeled metaboloites during anaerobic propanoic acid oxidation
PublikacjaBiowaste digestion is a possibility to gain biogas as a renewable fuel source. However, the anaerobic food chain may be disrupted by, e.g., substrate overload or by inhibitors, leading to the accumulation of volatile fatty acids (VFAs), predominantly of propanoic acid (PA). VFA Accumulation may cause a rapid pH decrease, less biogas production, or even a total inhibition. To maintain high biogas productivity or to prevent a collapse...