Temat: microorganisms - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Analysis of the Influence of the Application of Effective Microorganisms on the Dynamics of Spring Wheat Emergence
Autorzy:: Piotrowska, Anna
Boruszko, Dariusz
Tematy:: Effective Microorganisms
wheat; Pokaż więcej
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Powiązania:: https://bibliotekanauki.pl/articles/2069899.pdf Link otwiera się w nowym oknie
Opis:: Deterioration of the natural environment as a result of violation of its natural structures and self-regulatory mechanisms causes an urgent need to replace chemicals with effective and multidirectional biopreparations. Reduction of the amount of chemicals used in agriculture becomes possible through the use of Effective Microorganisms. This will reduce the burden on the environment. Agriculture that uses EM technology can count on help with germination rates; emergence uniformity; and crop yields, for example. EM formulations contain a mixture of different coexisting microorganisms. The following paper presents the results of own research on the use of Effective Microorganisms in seed dressing of spring wheat. It was shown that the microbial preparation EM Naturally Active affects the increase of wheat seed germination dynamics.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Fungal contamination of ward furnishings and medical equipment used in the treatment and nursing of newborns
Autorzy:: Gniadek, A.
Białecka, A.
Opach, I.
Kulig, A.
Krzyściak, P.
Ostrogórska, P.
Macura, A.B.
Tematy:: airborne microorganisms
fungal
medical equipment; Pokaż więcej
Wydawca:: Instytut Medycyny Wsi
Powiązania:: https://bibliotekanauki.pl/articles/2085935.pdf Link otwiera się w nowym oknie
Opis:: Introduction and objective. Newborn babies staying on hospital wards are likely to be colonized by microorganisms, including potentially pathogenic fungi. The aim of the study was to assess the mycological purity of hospital wards and medical equipment utilized in the treatment and nursing of newborns. Materials and method. The study was conducted in Neonatal High Dependency Units (NHDU) and Neonatal Intensive Care Units (NICU). 539 samples were collected from 24 different sources, 130 from ward furnishings and 289 from medical equipment. The study was carried out following the microbiology research methods for sample collection. Subsequently, the samples (swabs, water from incubators, washings from respirator tubes and nasal cannulas (nCPAP)) were cultivated on Sabouraud agar plates. The stamps were collected with the application of Count-Tact method. The samples were incubated at the temperature of 25+/-2oC and the number of fungi assessed (cfu/cm-2 of the surface area). The species were identified based on their morphological and biochemical features. Results. Fungal growth was observed on 60% of samples collected from ward furnishings and 7% of samples collected from medical equipment. The average number of cfu/cm-2 ranged between 0–8.84 in the case of ward furnishings and between 0–1.22 cfu/cm-2 in the case of medical equipment. In 180 samples collected from the material which had direct contact with newborns no fungal growth was observed. Conclusions. The furnishings of the wards on which newborns were treated and nursed were contaminated with fungi to an extent which did not pose a threat to the life and health of the newborns. Medical equipment (respirators, incubators, nCPAP cannulas and masks) which came into direct contact with newborns was free from fungi.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Use of the chemical permeabilization process in yeast cells: production of high-activity whole cell biocatalysts
Autorzy:: Trawczynska, I.
Tematy:: permeabilization
biocatalyst
yeast cells
microorganisms; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/2097138.pdf Link otwiera się w nowym oknie
Opis:: Yeast cells are popular microorganisms for use in various bioprocesses because of their ability to produce various enzymes. They are also known for their low price. However, the activity of these biocatalysts is limited by cell membrane diffusion. One of the possible solutions to this problem is permeabilization, which makes cell walls and membranes of microorganisms more permeable to allow for easier reagent diffusion, while also maintaining properties of the cells, such as their structure and enzymatic activity. The reusability of permeabilized baker’s yeast cells is a major asset that allows them to be successfully used in biotransformation processes. Because of extensive research on this process, numerous procedures have been developed regarding the production of highly active biocatalysts in the form of permeabilized cells. The most commonly used technique is chemical permeabilization. Its effectiveness is based on the activity of various intracellular enzymes: one enzyme or several enzymes simultaneously. Multiple chemical substances, mostly organic solvents and detergents, were analyzed to determine their effectiveness as permeabilizing agents. This review provides a state-of-the-science analysis of substances used as permeabilizing agents for yeast permeabilization
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The Effect of Using Effective Microorganisms on the Changes in the Chemical Composition of Spring Wheat
Autorzy:: Piotrowska, Anna
Boruszko, Dariusz
Tematy:: effective microorganisms
macronutrients
micronutrients
wheat; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/2105286.pdf Link otwiera się w nowym oknie
Opis:: The world’s noticeable population growth is associated with an increased demand for agricultural products. The search for new solutions to increase crop productivity while ensuring environmental stability is becoming a key role. One such method is the use of the biopreparations containing Effective Microorganisms. EM consist of about 80 species of selected aerobic and anaerobic microorganisms, which have the ability to restore the biological balance. Professor Teruo Higa of Ryukyus University in Okinawa is the creator of Effective Microorganisms. When added to agricultural ecosystems they stimulate plant growth, improve the condition of soils affected by excessive use of chemical fertilizers allowing insoluble forms of elements to be transformed into plant-available forms and protect them from certain diseases and pests. This solution is an ecological alternative to conventional technologies and does not further pollute the ecosystem, which is crucial. Organic fertilizers in the form of EMs are made using live microorganisms they do not only deliver nutrients to the soil but also allow inactive ones to become available. With improved nutrient uptake and protection from soil pathogens, plants develop and grow better for improved yields. They contain organic matter and one or more biologically active organic compounds (amino acids, vitamins) as well as macroand microelements that stimulate plant growth and development. They provide plants with essential substances, which are naturally synthesized in many complex biochemical processes, causing energy savings that can be used for other transformations in the plant.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Presence of microorganisms at various stages of poultry wastes management. Part I. Keratinolytic microorganisms
Autorzy:: Wrońska, I.
Cybulska, K.
Tematy:: microorganisms
keratin
poultry waste
composting; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/123517.pdf Link otwiera się w nowym oknie
Opis:: Poultry waste management is a difficult and arduous process. This requires a number of steps of processing the organic substances included in the waste mass from poultry industry. These wastes, due to the high content of keratin, are hardly degradable. One of the possibilities of their decomposition is the use of highly-active microorganisms. The aim of the study was to determine the presence of keratinolytic microorganisms at the selected stages of poultry waste management. The research material consisted of slime originating from liquid waste reservoir, biological sludge, and proper compost. Analyses were performed on mineral substrates containing keratin as the only carbon source. Based on the study, the presence of keratinolytic microorganisms was found in all materials. The slime was the most numerously inhabited waste, while proper compost the least. Predominant group of microorganisms, regardless of the tested material type, was composed of bacteria.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Identification and characterization of microbiological contamination sources in the environment of production of personalized femoral implant
Autorzy:: Gniada, Natalia
Leszczewicz, Martyna
Makowski, Krzysztof
Komorowski, Piotr
Walkowiak, Bogdan
Tematy:: implants
microbiology
microorganisms
implanty
mikrobiologia
mikroorganizmy; Pokaż więcej
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Powiązania:: https://bibliotekanauki.pl/articles/1844919.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The influence of microbiological medium composition on the efficiency of bacterial cellulose synthesis
Autorzy:: Chlebiej, Katarzyna
Betlej, Izabela
Tematy:: bacterial cellulose
SCOBY microorganisms
medium composition; Pokaż więcej
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Powiązania:: https://bibliotekanauki.pl/articles/2171745.pdf Link otwiera się w nowym oknie
Opis:: The influence of the composition of microbiological medium on the efficiency of bacterial cellulose synthesis. The main objective was to investigate the effect of culture medium composition on the process of bacterial cellulose synthesis. Five different nutrients were used as carbon sources for cellulose synthesising microorganisms: glucose, fructose, erythrol, inulin and lactose, added to the medium at three different concentrations (1%, 2.5%, and 4.5%). It was observed that the type and amount of nutrients included in the culture medium significantly affected the cellulose synthesis efficiency. It was observed that the best results of polymer synthesis were obtained on medium containing 1% fructose. Furthermore, the results obtained clearly confirm that the composition of the culture medium has a significant effect on the water retention of the polymer during its synthesis on the culture media.
Wpływ składu podłoża mikrobiologicznego na wydajność syntezy celulozy bakteryjnej. Głównym celem było zbadanie wpływu składu podłoża hodowlanego na process syntezy celulozy bateryjnej. Wykorzystano 5 różnych składników pokarmowych, będących źródłem węgla dla mikroorganizmów syntetyzujących celulozę: glukozę, fruktozę, erytrol, inulinę oraz laktozę, dodanych do podłoża w trzech różnych stężeniach (1%, 2.5%, oraz 4.5%). Zauważono, że rodzaj oraz ilość składników pokarmowych zawartych w podłożu hodowlanym znacząco wpłynęła na wydajność procesu syntezy celulozy. Zaobserwowano, że najlepsze wyniki wydajności syntezy polimeru osiągnięto na podłożu zawierajacycm 1% zawartość fruktozy.. Ponadto otrzymane wyniki jednoznacznie potwierdzają, że skład podłoża hodowlanego ma znaczący wpływ retencję wody przez polimer, w procesie jego syntezy na podłożach hodowlanych.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Meadow plant litter species diversity – impact on organic matter accumulation.
Autorzy:: Szanser, M.
Górska, E.
Kisiel, M.
Kusińska, A.
Russel, S.
Sieminiak, D.
Wojewoda, D.
Tematy:: algae
microorganisms
carbon
nitrogen
humus
litter; Pokaż więcej
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Powiązania:: https://bibliotekanauki.pl/articles/2199571.pdf Link otwiera się w nowym oknie
Opis:: We evaluated the effect of plant litter species diversity on the on humus accumulation in the underlying substratum and on soil microbial communities composition in experimental field study.. Sandy loam (sand mixed with loam) mesocosms of were examined over the course of 2.5 years. Plots contained simplified substratum –. Five litters composed of meadow plants; both grasses and herbs (weed species) were used. Litters were composed of single species (I - Dactylis glomerata, II - Festuca rubra and III - Trifolium pratense) or were species mixtures IV (mixture of 3 species I, II and III); V (mixture of 12 species - IV and 9 other grasses and meadow weeds). Results baased mainly on the last year of the experiment show that most of the differences among treatments found in the substratum below the litter cover resulted from the litter diversity. Soil respiration, microbial biomass and numbers of fungi and bacteria did not differentiate between mono- and multispecies treatments. Despite of that the soil respiration and algal biomass were significantly correlated during the study period. The biomass of algae as well as carbon and nitrogen increases in the substratum, depended on the litter diversity and were higher when litter composition was more complicated. In general, our results suggest that algae may participate in the process of humus formation...
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Dynamics of Changes in Microorganisms in Rhizosphere Zone of Lawn Grasses in the Second Year After the Application of Sewage Sludge
Autorzy:: Wołejko, E.
Wydro, U.
Łoboda, T.
Piekut, J.
Tematy:: sewage sludge
grass mixtures
microorganisms
rhizosphere; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/123513.pdf Link otwiera się w nowym oknie
Opis:: The aim of the study was to present the dynamics of changes in the number of selected microorganisms in the rhizosphere zone of grasses two years after the application of sewage sludge. The study was conducted on four specially prepared research plots along the main roads in Bialystok. Three doses of sewage sludge were applied: 0 (control), 7.5 and 15 kg/m². Then the plots were seeded with two mixtures of lawn grasses: Eko and Roadside. Samples of roots with soil were collected three times during the vegetation period of 2012 (April, July and October) and assayed for the total number of bacteria, the number of Gram-negative bacteria, the number of Pseudomonas fluorescens, the number of amylolytic and proteolytic bacteria. Microbiological tests of the rhizosphere showed seasonal variations of all investigated microbiological parameters. The greatest average of the total number of bacteria, Gram-negative bacteria and proteolytic bacteria was observed on the plots in April, amylolytic bacteria in July while in the case of Pseudomonas fluorescens was observed on the plots in October. The time of measurement had the biggest impact on the number of microorganisms. An increased number of microorganisms was observed on all plots in April. Whereas, the fertilization with sewage sludge and grass mixtures did not affect the microbiological parameters.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Influence of sewage sludge on the chosen soil properties and microbiological parameters of urban grass mixtures rhizosphere
Autorzy:: Wydro, U.
Wołejko, E.
Łoboda, T.
Matejczyk, M.
Butarewicz, A.
Tematy:: sewage sludge
rhizosphere
urban soil
microorganisms; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/123835.pdf Link otwiera się w nowym oknie
Opis:: The aim of this study was to analyse the influence of municipal sewage sludge on selected microbiological parameters in the rhizosphere of lawn grass mixtures. Four experiments on the lawns along the main roads of Bialystok were founded. The factors in the experiment were three doses of sewage sludge (0 – control; 7.5 and 15 kg·m^-2) and two grass mixtures (Eko and Roadside). The studied parameters were monitored twice during 2011 vegetation season by determining the total number of soil microorganisms, the total number of Gram-negative bacteria, the number of bacteria of Pseudomonas fluorescens species, the number of amylolytic and proteolytic bacteria. Sewage sludge amended to soil resulted in a change of physical-chemical properties of soil. The sewage sludge application to soil influenced significantly the number of proteolytic and Gram-negative bacteria.
Dostawca treści:: Biblioteka Nauki

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