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Wyświetlanie 1-15 z 172
Tytuł:
Faeces As an Important Pollution Source of Airborne Pathogens in Traveling from Swine Farm
Autorzy:
Liangbin, Zhao
Wenjin, Zhang
Dongmei, Jiang
Lin, Bai
Xiaoxia, Hao
Powiązania:
https://bibliotekanauki.pl/articles/27315760.pdf
Data publikacji:
2023
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
air microorganism
16SrRNA high-throughput sequencing
manure
piggery
swine
Opis:
Airborne pathogens are the most important factor causing environmental issues on pig farms. Research on airborne swine-derived microbes has mainly concentrated on several specific microbes or pathogens. The present work was conducted to detect and identify the entire microbial community in piggery air and their dispersion by 16SrRNA sequencing. Fifteen faeces and eighty-four air samples were collected in swine barns and from different distances away from the barns, respectively. The results showed that the faeces and air share the most dominant bacteria. The top 10 genera belonged to Fimicutes, Proteobacteria and Bacteroidetes, and accounted for 54% and 76-84% of the total sequences. Moreover, great higher (P < 0.01) microbial diversity was detected in the faeces. This study indicated that a hygienic interval of 50 m should be set on swine farms to prevent the spreading infectious disease caused by airborne pathogens.
Źródło:
Rocznik Ochrona Środowiska; 2023, 25; 55--67
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbiological Analysis of Coolant Used in Machining
Autorzy:
Józwik, Jerzy
Zawada-Michałowska, Magdalena
Budzik, Grzegorz
Legutko, Stanislaw
Kupczyk, Maciej Jan
Powiązania:
https://bibliotekanauki.pl/articles/2201920.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
metalworking fluids
CNC machining
cooling properties
lubricating properties
microorganism
microorganisms
Opis:
The subject of microbiological tests of coolants presented in the work is the cutting fluid (emulsifying oil) of Fuchs ECOCOOL 68 CF3. The liquid was taken from the tanks of three different numerically controlled machines (Lasertec 65, MillTap 700, CTX beta 1250 TC), used with different intensity. The five most characteristic and popular media were used in the study: nutrient agar - plain, TSA medium (tryptone-soy-agar), medium with dichloran, rose bengal and chloramphenicol, Sabouraud agar with Chloramphenicol, Czapka agar. The incubation time was dependent on the type of microorganisms. After the specified time, the plates inoculated on the medium were subjected to visual observations and under the Leica DM 500 microscope. As a result of the observation, the following types of microorganisms (fungi and bacteria) were detected: Aspergillus Niger Tiegh, Candida Albicans, Saphylococcus Aureus, Micrococcus Luteus and Escherchia Coli and Citrobacter Freundia. The assessments were made in fixed periods. The results are presented as a function of the intensity of the use of cutting fluids. Microbiological analysis of machining fluids will allow for optimizing the time periods of using coolants and will also contribute to the protection of the operator's health and indirectly "extending the life cycle" of the technological machine.
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 2; 206--214
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Cultivation Technology on the Productivity of Spring Wheat and the Humus State of Southern Carbonate Soils of Northern Kazakhstan
Autorzy:
Kunanbayev, K.
Churkina, G.
Filonov, V.
Utebayev, M.
Rukavitsina, I.
Powiązania:
https://bibliotekanauki.pl/articles/2068455.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
southern carbonate chernozem
spring wheat
humus
humus group composition
nitrogen
phosphorus
soil microorganism
soil respiration
Opis:
Intensive use of the chernozem soils of Northern Kazakhstan since the development of virgin lands has led to soil erosion and loss of humus. Since 1954, according to researchers, 1.2 bln tons of organic matter have been irretrievably lost. During this period, the methods of tillage have changed significantly from surface to subsurface tillage, which led to a change in the method of accumulation of organic residues in the soil. The purpose of this study was the short-term monitoring of spring wheat cultivation technologies to observe their influence on crop productivity and soil agrocenosis. A virgin plot was used as a standard of soil fertility. Determination of nutrients in the soil was carried out by using the method of "wet chemistry" with spectrophotometric termination. An infrared analyzer was used to assess the grain quality. The identification of soil microorganisms was carried out on nutrient microbiological media, such as meat-and-peptone agar, starch-and-ammonia agar, and Czapek-Dox agar. The results of three-year studies showed that the humus content in the variants with permanent wheat decreased to 3.26–3.38%. The greatest decrease in humus content was observed in the two-field grain and fallow crop rotation (2.48%). The decrease in the amount of humus occurred as a result of insufficient intake of plant residues and mineral fertilizers. The content of nitrate nitrogen and mobile phosphorus in virgin soil is low. Soil micromycetes dominate on virgin lands, whereas ammonifiers and immobilizers dominate on cultivated soils. The high level of carbon dioxide emissions on virgin land (3.0 C2 kg/ha/hour) is due to the presence of a large amount of plant biomass. The most optimal variant out the considered technological backgrounds from the point of view of increasing yields up to 15.8 c/ha and preserving soil fertility (3.26% humus content) is the cultivation of permanent wheat with the introduction of fertilizers and herbicides. The use of two-field grain and fallow crop rotation leads to irreplaceable losses of organic matter (2.48%).
Źródło:
Journal of Ecological Engineering; 2022, 23, 3; 49--58
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Managing the quality of seeds from cereal conditioned with effective microorganisms (EM) and red light (RL)
Zarządzanie jakością nasion zbóż kondycjonowanych efektywnymi mikroorganizmami (EM) i światłem czerwonym (RL)
Autorzy:
Dziwulska-Hunek, A.
Szymanek, M.
Dziwulski, J.
Powiązania:
https://bibliotekanauki.pl/articles/13925469.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
seed quality
quality management
effective microorganism
red light
rye
triticale
yield
Źródło:
Agronomy Science; 2022, 77, 3; 89-99
2544-4476
2544-798X
Pojawia się w:
Agronomy Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbial Biofilm of Plastic in Tropical Marine Environment and their Potential for Bioremediation of Plastic Waste
Autorzy:
Afianti, Nur Fitriah
Rachman, Arief
Hatmanti, Ariani
Yogaswara, Deny
Anggiani, Milani
Fitriya, Nurul
Darmayati, Yeti
Powiązania:
https://bibliotekanauki.pl/articles/2086410.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biofilm
microorganism
plastic debris
tropical
marine environment
biodegradation
Opis:
Plastic debris has become a global problem due to its widespread distribution and accumulation in the marine environment. Indigenous bacteria in the marine environment are able to quickly contaminate plastic surface and assemble to form successional plastisphere-specific bacterial. The formation of microbial biofilms on the plastic surface can indirectly initiate the degradation of plastic polymers. The environmental conditions of the tropical region make the growth of microbial biofilms become faster. However, the study on the biodiversity of microorganisms in marine plastic debris is limited to the northern hemisphere, which includes subtropical and temperate regions. This review provides current studies of biodiversity and community structure of plastisphere in tropical environments, including bacteria and microalgae, and their potential to degrade the plastic polymer. A systematic literature search has been conducted using Scopus with different combinations of keywords. In addition, Google Scholar databases were also used to find more studies on some specific topics, including plastic degrading organisms. The climate-associated areas have been grouped according to the latitude of the study site into tropical, subtropical, and temperate latitudes. The microorganisms analyzed in this review are only bacteria, actinobacteria, and microalgae.
Źródło:
Journal of Ecological Engineering; 2022, 23, 4; 261--275
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing of Bacterial and Fungal Isolates from Rumen Fluid Used in Inoculants in the Fermentation of Feed from Agro-Industrial Waste
Autorzy:
Mustabi, Jamila
Zulkharnaim
Kuswinanti, Tutik
Sirajuddin, Sitti Nurani
Al-Tawaha, Abdel Razzaq
Powiązania:
https://bibliotekanauki.pl/articles/2068463.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
rumen fluid microorganism
fiber decomposing fungi
lactic acid bacteria
Opis:
The addition of the inoculant can accelerate the fermentation process and improve the quality of the feed material in fermentation. This study aimed to isolate, test and select the rumen microorganisms that have high ability to degrade the fiber and improve the quality of materials used in inoculants to ferment agricultural wastes as alternative feed. Microbial isolate was extracted from cattle rumen fluid. The isolates type of fungus were grown on Potato Dextrose Agar (PDA) while the bacteria was grown on Nutrient Agar (NA) medium. Microbes of fungi were tested and selected based on their ability to produce ligninase, cellulase and hemicellulase enzymes. Bacteria were grown on MRS broth media as a confirmation for LAB colonies, then tested for gram staining, catalase test, growth on different NaCl levels (4 and 6.5%) and growth at various pH (3, 4, and 5). The results showed that five fungal isolates had a growth diameter of 0.1–0.37 mm on lignin, cellulose and hemicellulose media after seven days. Eleven bacterial isolates were indicated as lactic acid bacteria; almost all isolates could grow on NaCl 6.5%, but only four bacterial isolates could grow on NaCl 4% and five bacterial isolates could grow at pH 3. In conclusion, three isolates of fungi have a remarkable ability to degrade lignin. Five isolates of lactic acid bacteria have a comprehensive ability as a preservative in fermentation, so eight microbial isolates from rumen fluid can be used as inoculants in fermenting the feed material from agro-industrial waste.
Źródło:
Journal of Ecological Engineering; 2022, 23, 3; 92--99
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Screening of high-efficiency potassium-dissolving strains and optimization of the potassium-dissolving process
Autorzy:
Xue, Yongping
Xiao, Chunqiao
Zhang, Yantu
Chi, Ruan
Powiązania:
https://bibliotekanauki.pl/articles/1447601.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
microorganism
potassium bacteria
potassium solubilization
potassium release
optimization of potassium-dissolving process
Opis:
The biosolubilization of potassium feldspar (K-feldspar) by potassium-dissolving microorganisms has become a hot research topic. However, the screening of highly efficient potassiumdissolving strains from the soils of mining areas has not been reported. In this study, 82 strains with potassium-dissolving ability were screened from soils collected from a K-feldspar mining area in Suizhou, Hubei Province, China. One of them, JX-20, was a gram-positive is spherical bacteria with smooth edges, which was identified as a new strain by 16S rRNA gene sequencing. Simultaneously, the influences of temperature, initial pH value, inoculation volume, incubation time, shaking speed, Kfeldspar concentration, K-feldspar granularity, and the ammonium sulfate dose on the potassium releasing ability of the JX-20 strain were investigated. The results showed that the JX-20 strain had an obvious dissolution effect on K-feldspar. The optimum conditions for the JX-20 strain to remove potassium from K-feldspar were as follows: cultured at 28-30℃ for ten days, initial pH value of 7.4-8, 60 mL medium in a 250 mL conical flask, and 170 r/min shaking speed on a rotary shaker. The Kfeldspar concentration, inoculation volume, K-feldspar granularity, and ammonium sulfate dose were 2 g/L, 20%, 0.02-0.03 mm, and 0.4 g/L, respectively. Under the above conditions, the highest corrosion efficiency of 39.75% was achieved.
Źródło:
Physicochemical Problems of Mineral Processing; 2021, 57, 2; 1-13
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dependence between the antimicrobial activity and the molecular structure of phenolic acids and their salts with alkali metals as biologically active substances present in the natural products
Poszukiwania zależności pomiędzy aktywnością przeciwdrobnoustrojową a strukturą molekularną kwasów fenolowych i ich soli z litowcami jako substancji biologicznie aktywnych występujących w produktach naturalnych
Autorzy:
Piekut, J.
Kowczyk-Sadowy, M.
Krasowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/13925571.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
antimicrobial activity
phenolic acid
molecular structure
biologically active substance
natural product
microorganism
Staphylococcus aureus
Proteus vulgaris
Bacillus subtilis
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2020, 601; 25-36
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of Microorganisms on Climate Change: A Review
Autorzy:
Mangodo, C.
Adeyemi, T. O. A.
Bakpolor, V. R.
Adegboyega, D. A.
Powiązania:
https://bibliotekanauki.pl/articles/1031549.pdf
Data publikacji:
2020
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Biosphere reserves
Carbon cycle
Climate Change
Microorganism
Nitrogen fixation
Opis:
Biosphere Reserves all over the world are areas that are deliberately and purposely kept to promote green economy and most importantly mitigate the effect of Global warming and climate change. The problems of climate change arise from the higher concentration of greenhouse gases in the atmosphere which exert a warming effect on the earth. Control of anthropogenic sources and greenhouse gases are constantly discussed and extensively researched in this matter, while the significance of microorganisms remained neglected. Although microorganisms has a contributory effect in global warming as in the case of methanogenes in the rumen of ruminants which has been implicated to increase the environmental methane gases during digestion, the role they play in converting greenhouse gas to useable form in the soil and water hence, reducing global warming cannot be over emphasized. The current review aimed to stress the neglected global importance of microorganisms in climate change. Overall, this review further support the key role biosphere reserves play in protecting soil and plant microorganisms in response to climate change control.
Źródło:
World News of Natural Sciences; 2020, 31; 36-47
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect auto-inoculation of the soil on the change in the amount of live microbial biomass
Wpływ autoszczepienia gleby na zmiany ilości biomasy żywych mikroorganizmów
Autorzy:
Rygielski, Kacper
Cybulska, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/1819529.pdf
Data publikacji:
2020
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
soil
microorganism biomass
auto-inoculation
bioaugmentation
gleba
biomasa mikroorganizmów
autoszczepianie
bioaugmentacja
Opis:
Out of three light soils of various parameters were isolated bacteria’s, actinomycetes and fungi. Using those, autovaccines were prepared, individually for each of them. Then, in laboratory soil-conditions were given autovaccines and during incubation, samples were being taken, in which the content of biomass of living microorganisms were determined. The largest amount of biomass of living microorganisms was found in the soil from Stuchowo, the lowest in the soil from Swierzno. During the incubation of soils in the laboratory, the amount of biomass of living microorganisms decreased in soils from Stuchowo and Swierzno, while it increased in the soil from Kepica. Bioaugmentation resulted in a statistically significant increase in the amount of biomass of living microorganisms in all soils tested, reaching up to 30 % compared to non-vaccinated soil. The increase was the highest in the soil from Stuchowo and then in the decreasing order in the soils from Kepica and Swierzno.
Źródło:
Ecological Chemistry and Engineering. A; 2020, 27, 1-2; 1-10
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tolerance of environmental bacteria to heavy metals
Tolerancja bakterii środowiskowych na metale ciężkie
Autorzy:
Stachurska, X.
Środa, B.
Dubrowska, K.
Jabłońska, J.
Roszak, M.
Karakulska, J.
Powiązania:
https://bibliotekanauki.pl/articles/2620262.pdf
Data publikacji:
2020
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
microorganism
bioremediation
autochthonous bacteria
soil
heavy metal
toxicity
copper sulphate
cadmium sulphate
lead nitrate
Źródło:
Acta Scientiarum Polonorum. Zootechnica; 2020, 19, 2; 63-73
1644-0714
Pojawia się w:
Acta Scientiarum Polonorum. Zootechnica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of microorganisms in plant protection against fungal diseases
Wykorzystanie mikroorganizmów w ochronie roślin przed chorobami powodowanymi przez grzyby
Autorzy:
Nowocień, K.
Sokołowska, B.
Powiązania:
https://bibliotekanauki.pl/articles/13925582.pdf
Data publikacji:
2020
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
plant protection
microorganism
antagonism
biological control
ochrona roslin
mikroorganizmy
antagonizm
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2020, 603; 41-52
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abundance and community structure of ammonia oxidizing archaea and bacteria in response to peanut growth under controlled condition in Shandong, China
Autorzy:
Huang, C.
Xu, N.
Fu, Z.
Sun, B.
You, S.
Ma, D.
Yu, J.
Powiązania:
https://bibliotekanauki.pl/articles/12689395.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
China
plant cultivation
peanut
Arachis hypogaea
plant growth
community structure
microorganism abundance
ammonia-oxidizing bacteria
ammonia-oxidizing archaea
field experiment
three-year field experiment
controlled condition
Opis:
Based on a three-year field experiment under controlled condition in Ji’nan, China, the effects of peanut growth on the variation in the abundance and community structure of ammonia oxidizing bacteria (AOB) and archaea (AOA) before and after peanut growth were investigated through quantitative PCR and cluster analysis of terminal-restriction fragment length polymorphism. Our results show that the community composition of AOA and AOB was greatly affected by the peanut growth leading to the decreased abundance of AOA and increased abundance of AOB. Furthermore, AOA and AOB community structures varied before and after peanut growth. Phylogenetic analysis indicated that all AOA and AOB community sequences were clustered into the uncultured group. Altogether, the results suggested that the abundance of AOA and AOB in soil and their community compositions can be greatly affected by the peanut growth.
Źródło:
Acta Scientiarum Polonorum. Hortorum Cultus; 2019, 18, 6; 119-127
1644-0692
Pojawia się w:
Acta Scientiarum Polonorum. Hortorum Cultus
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza zastosowania naturalnych technologii biologicznych do usuwania zanieczyszczeń ropopochodnych z wód powierzchniowych
Autorzy:
Deptuła, Halina
Lipska, Monika
Wiejak, Anna
Powiązania:
https://bibliotekanauki.pl/articles/161873.pdf
Data publikacji:
2019
Wydawca:
Polski Związek Inżynierów i Techników Budownictwa
Tematy:
woda powierzchniowa
zanieczyszczanie
substancja ropopochodna
biodegradacja
mikroorganizm
surface water
pollution
petroleum substances
biodegradation
microorganism
Opis:
Artykuł omawia zastosowanie naturalnych technologii biologicznych wykorzystujących mikroorganizmy do rekultywacji wód oraz prezentuje wyniki badań laboratoryjnych nad skutecznością usuwania zanieczyszczeń ropopochodnych z wód jeziornych z wykorzystaniem wyselekcjonowanych kompozycji mikroorganizmów.
Źródło:
Przegląd Budowlany; 2019, 90, 10; 62-65
0033-2038
Pojawia się w:
Przegląd Budowlany
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of the thermographic method for the monitoring growth of selected microorganisms
Zastosowanie metody termograficznej w mikrobiologii
Autorzy:
Lipińska, E.
Pobiega, K.
Szymankiewicz, K.
Rudziak-Tałałaj, A.
Klimkiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/13925563.pdf
Data publikacji:
2019
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
microorganism
thermovision
thermography
Saccharomyces cerevisiae
Aspergillus niger
Penicillium roqueforti
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2019, 599; 27-36
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 172

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