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Wyszukujesz frazę "microbiology" wg kryterium: Temat


Tytuł:
Effect of UV-C Postharvest Disinfection on the Quality of Fresh-Cut 'Tommy Atkins' Mango
Autorzy:
Garzón-García, Alba Mery
Ruiz-Cruz, Saúl
Dussán-Sarria, Saúl
Hleap-Zapata, José Igor
Márquez-Ríos, Enrique
Del-Toro-Sánchez, Carmen Lizette
Tapia-Hernández, José Agustín
Canizales-Rodríguez, Dalila Fernanda
Ocaño-Higuera, Víctor Manuel
Powiązania:
https://bibliotekanauki.pl/articles/16538533.pdf
Data publikacji:
2023-02-16
Wydawca:
Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
Tematy:
minimal processing
surface color
native microorganisms
predictive microbiology
ultraviolet short wave irradiation
Opis:
Mango cv. ‘Tommy Atkins’ is a highly appreciated fruit for its organoleptic characteristics and its resistance to minimal processing. However, some operations as peeling and cutting can generate microbial contamination and loss of bioactive compounds. Ultraviolet short wave (UV-C) is an alternative technology for fresh-cut products that leads to microbial inactivation and the increase of beneficial compounds. The effect of a UV-C dose of 6 kJ/m2 was evaluated on quality attributes of fresh-cut 'Tommy Atkins' mango during days 0, 3, 6, 9, and 12 of storage (5°C, relative humidity: 85-90%), and compared with a positive control (conventional method by immersion in 10 mg/L sodium hypochlorite solution) and a negative control (without treatment). Physicochemical analysis (titratable acidity, pH, total soluble solid content, and firmness), superficial color evaluation, determinations of microbial counts, contents of total carotenoids, phenolics and flavonoids, and antioxidant capacity assays were performed. The results showed that UV-C treatment allowed to preserve microbial safety and superficial color of stored fresh-cut mango, and to increase the content of total carotenoids, which was 19.34 and 26.50 mg β-carotene/100 g fresh weight (FW) for control and UV-C treated sample at day 12 of storage, respectively. The DPPH• scavenging activity of the UV-C treated mango was also higher (0.60 mM TE/g FW) compared to control (0.27 mM TE/g FW) at the end of storage. However, UV-C treatment caused loss of firmness. Some native microorganisms of mango adapted to the stress caused by the treatments and the storage.
Źródło:
Polish Journal of Food and Nutrition Sciences; 2023, 73, 1; 39-49
1230-0322
2083-6007
Pojawia się w:
Polish Journal of Food and Nutrition Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbiology of metalworking fluids: what we know and lessons to be learnt
Autorzy:
Koch, Thomas
Powiązania:
https://bibliotekanauki.pl/articles/2204631.pdf
Data publikacji:
2023
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
metalworking fluids
microbiology
biofilms
monitoring
Opis:
Water-miscible metalworking fluids are an essential component of many manufacturing processes. During their lifetime they are subject to permanent changes in their physical and chemical characteristics. Due to their high content of water and their chemical composition in use, metalworking fluids (MWF) are prone to microbial life, i.e. the proliferation of bacteria and fungi. The microbial activity leads to significant changes in the chemical composition of the MWF, which can result in the loss of their technical properties. This paper briefly discusses the influences of microbial contamination on the technical quality of MWF and presents common monitoring systems for the detection of microorganisms. Finally, measures are described that can be taken to protect MWF from damage caused by high microbial loads in daily practice. In a short outlook, alternative research approaches are mentioned that aim at sustainable use of MWF.
Źródło:
Acta Mechanica et Automatica; 2023, 17, 2; 166--172
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New design of patient-specific, antimicrobial bioactive finger implants for durable functional reconstruction after amputation
Autorzy:
Dyner, Marcin
Byrski, Adam
Major, Roman
Gawlikowski, Maciej
Kasperkiewicz, Katarzyna
Lackner, Juergen M.
Dyner, Aneta
Major, Bogusław
Powiązania:
https://bibliotekanauki.pl/articles/2058387.pdf
Data publikacji:
2021
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
finger implant
thin coatings
microstructure
cytotoxicity
microbiology
implanty
palce
cytotoksyczność
mikrobiologia
Opis:
The absence of even a single finger results in a major impairment in the hand function (precise grasping, grip power), therefore significantly affecting the social and professional life of victims who are frequently young people. Finger amputation is a surgical treatment for ~69.000 patients in the EU after traumatic injury, in which replantation microsurgery fails due to the severity of tissue damage. The surgical reconstruction is currently possible only via autograft transplantation, e.g. a toe-to-hand transfer, thus leading to foot impairment. Some motion functional restoration is also possible using a bone-anchored silicone prosthesis but without the sense revalidation. Our current research focuses on alternatives for surgical reconstruction by means of novel patient- -specific, durable, biomimetic, bioactive and antibacterial implants for reconstructing lost bone and joints. The implant design – and the improved micro(neuro) surgery (beyond the project) – will consist in the fast successful rehabilitation, including the soft-tissue related mobility, the implantation of state-of-the-art nerve conduits as well as the aesthetic appearance. Key issues for the long-term functionality of the biomaterial-based reconstruction of hard tissue are based on surgical demands, such as: (1) perfect integration of a bone-substituting metal with the surrounding bone tissue (a) with no signs of loosening due to stress shielding at the interface and (b) enhanced with protective activity against bacterial inflammation (antimicrobial properties and formation of vascularized bone tissue (ossification)) even months to years after the injury; (2) biomimetic finger joints based on non-wearing materials without ossification meant to prevent the loss of the motion function.
Źródło:
Engineering of Biomaterials; 2021, 24, 161; 8--14
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Advanced methods of bacteriological identification in a clinical microbiology laboratory
Autorzy:
Zukowska, M.E.
Powiązania:
https://bibliotekanauki.pl/articles/2098275.pdf
Data publikacji:
2020
Wydawca:
Instytut Medycyny Wsi
Tematy:
clinical microbiology
molecular method
modern method
multiplex polymerase chain reaction
real-time polymerase chain reaction
next generation sequencing
MALDI-TOF mass spectrometry
Opis:
Introduction and objective. Conventional, culture-based methods of bacterial identification and drug-susceptibility testing are considered the gold standard in medical microbiology. In recent years, classical microbiological methods have been supplemented with modern analytical and molecular methods. The aim of the review was to discusses the methods which have been permanently adapted to bacteriological microbiological diagnostics. Abbreviated description of the state of knowledge. Currently, PCR, as well as other nucleic acid amplification tests and sequencing techniques, are part of the standard repertoire of microbiological diagnostics. With regard to the quality and speed of pathogen identification, the introduction of mass spectrometry techniques into routine microbiological diagnostics work-up has been revolutionary. Within a short time in many laboratories, Matrix-Assisted Laser Desorption/Ionisation – Time of Flight Mass Spectrometry (MALDI TOF MS) systems have almost completely replaced conventional biochemical pathogen identification. Conclusions. Microbiological diagnostics is an indispensable element of a targeted therapy. The techniques used in the laboratory depend primarily on the laboratory’s apparatus, the costs of the analysis, as well as the sensitivity and specificity of a method. However, regardless of the culture-based methods universality, advanced techniques have permanently established themselves in diagnostics. Confident information about the detected organism and treatment possibilities in a combination with the clinical context are conducive to successful therapy. Although modern methods still require validation and close collaboration between clinicians, microbiologists and bioinformaticians, these methods, once deemed to be the future, have already arrived.
Źródło:
Journal of Pre-Clinical and Clinical Research; 2021, 15, 2; 68-72
1898-2395
Pojawia się w:
Journal of Pre-Clinical and Clinical Research
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Powiązania:
https://bibliotekanauki.pl/articles/1844919.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
implants
microbiology
microorganisms
implanty
mikrobiologia
mikroorganizmy
Źródło:
Engineering of Biomaterials; 2020, 23, 158 spec. iss.; 47
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of filtering material on the microbiological safety of protective half masks
Autorzy:
Czerwińska, Ewa
Wiśniewski, Adrian
Szparaga, Łukasz
Mydłowska, Katarzyna
Ceynowa, Przemysław
Ratajski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/1844910.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
microorganisms
microbiology
safety
mikroorganizmy
mikrobiologia
bezpieczeństwo
Źródło:
Engineering of Biomaterials; 2020, 23, 158 spec. iss.; 59
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
River water quality assessment in East Java, Indonesia
Autorzy:
Novita, Elida
Pradana, Hendra A.
Purnomo, Bambang H.
Puspitasari, Amelia I.
Powiązania:
https://bibliotekanauki.pl/articles/1844410.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
Jember Regency
microbiology parameters
physicochemical parameters
pollution index
Bedadung River
water quality monitoring
Opis:
This study aims to assess the water quality and determine the pollution index of the Bedadung River in the urban-area segment of Jember Regency, East Java. The sampling in the urban segment of Jember was conducted in May 2019 at five different locations, namely Slamet Riyadi Street, Mastrip Street, Bengawan Solo Street, Sumatra Street, and Imam Bonjol Street. The pollution index assessment refers to the Decree of the State Minister for the Environment of Indonesia Republic number 115 of 2003. The analysis showed that the parameters of TDS, TSS, pH, COD, BOD, NH3-N, Co, Cd, Cu, Zn, H2S, Cl–, SO4, oil and fats, MBAS, NO2-N, Fe, Pb, F, Cl2, NO3-N, phenol, and As did not exceed the quality standards. The parameters PO4, CN, total coliform, and faecal coliform were found to breach the quality standards at the 5 water sampling points. Total coliform and faecal coliform were the dominant pollutants in this segment. Therefore, the parameters of PO4, total coliform, and faecal coliform were considered as indicators of pollution arising from domestic and agricultural activities. The pollution index values for the five sampling locations ranged from 7.21 to 8.23. These scores indicate that the Bedadung River section that passes through the urban segment in Jember is classified as being in the moderately polluted category. This preliminary rapid assessment is therefore one of the considerations for the management of water quality in the Bedadung River section that passes through the urban area of Jember.
Źródło:
Journal of Water and Land Development; 2020, 47; 135-141
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The quality and importance of groundwater in the escarpment zone of the Bug river valley
Jakość i znaczenie wód gruntowych w strefie krawędziowej doliny Bugu
Autorzy:
Wołyńczuk, K.
Rogóż-Matyszczak, A.
Zarębska, M.
Zbucki, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/2053979.pdf
Data publikacji:
2020
Wydawca:
Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Tematy:
hydrology
groundwater
water microbiology
wells
water geochemistry
hydrologia
wody podziemne
mikrobiologia wód
studnie
geochemia wód
Opis:
Background. The use of groundwater from private wells in households is increasing significantly. However, this water is usually untreated, making it a carrier of diseases. Chemical composition plays a key role in assessing groundwater quality. Due to rapid urbanization and industrialization of the environment, pollutants (especially toxic elements) are constantly being released into the aquatic environment and pose a threat to human and animal health. There is a large variety of microorganisms in aquifers. The use of groundwater from aquifers as sources of drinking water without water treatment or disinfection is a public health problem. Material and methods. The material for the study consisted of water samples taken from used and unused domestic wells in villages located in Lubelskie Province, Biała Podlaska County, Janów Podlaski municipality, Poland. ICP-OES was used to determine the composition of elements. The total number of mesophilic and psychrophilic bacteria was determined for 5 wells using the pour-plate method according to the Polish Standard PN-EN ISO 6222:2004. Results. The water from the wells is unfit for consumption due to high microbiological contamination. A study would have to be carried out on the content of specific pathogenic microorganisms. In most of the samples analyzed, the heavy metal content of the water is below admissible limits. Conclusions. Water resources of the highest quality should be increasingly protected and retained as drinking water reserves. This is extremely important in view of the progressing climate change and the slow process of groundwater renewal.
Wprowadzenie. Zużycie wody gruntowej ze studni prywatnych w gospodarstwach domowych znacznie wzrasta. Jednakże woda ta jest zwykle nieoczyszczona, co czyni ją nośnikiem chorób. W ocenie jakości wód podziemnych kluczową rolę odgrywa skład chemiczny. Z powodu szybkiej urbanizacji i uprzemysłowienia środowiska, zanieczyszczenia (zwłaszcza toksyczne pierwiastki) są stale uwalniane do środowiska wodnego i stanowią zagrożenie dla zdrowia ludzi i zwierząt. W warstwach wodonośnych występuje duża różnorodność mikroorganizmów. Problemem zdrowia publicznego jest wykorzystywanie warstw wodonośnych wód podziemnych jako źródeł wody pitnej bez procesu oczyszczania wody lub dezynfekcji. Materiał i metody. Materiał do badań stanowiły próby wody pobrane z użytkowanych i nieużytkowanych studni przydomowych we wsiach położonych w województwie lubelskim, powiecie bialskim, w gminie Janów Podlaski. W celu oznaczenia zawartości pierwiastków wykorzystano metodę ICP-OES. Dla 5 studni określono ogólną liczbę bakterii mezofilnych i psychrofilnych przy wykorzystaniu metody płytek lanych zgodnie z Polską Normą PN-EN ISO6222:2004. Wyniki. Woda pochodząca ze studni nie nadaje się do spożycia z uwagi na wysokie zanieczyszczanie mikrobiologiczne. Konieczne byłoby przeprowadzenie badania na zawartość konkretnych mikroorganizmów chorobotwórczych. W większości analizowanych prób zawartość metali ciężkich w wodzie znajduje się poniżej dopuszczalnej granicy. Wnioski. Zasoby wodne o najwyższej jakości powinny być poddane coraz większej ochronie i pozostawione jako rezerwa wód pitnych. Jest to niezwykle istotne z uwagi na postępującą zmianę klimatu oraz powolny proces odnawiania wód podziemnych.
Źródło:
Health Problems of Civilization; 2020, 14, 4; 320-326
2353-6942
2354-0265
Pojawia się w:
Health Problems of Civilization
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Planeta Człowiek – Jestem Milionami
The Planet Human – I Am the Millions
Autorzy:
Cech, Grzegorz M.
Powiązania:
https://bibliotekanauki.pl/articles/424486.pdf
Data publikacji:
2019
Wydawca:
Akademia Sztuk Pięknych w Gdańsku
Tematy:
mikrobiom
bio art
bakterie
posthumanizm
mikrobiologia
microbiom
bacteria
posthumanism
microbiology
Opis:
Mikroorganizmy są nieodłączną składową otaczającego nas świata – również człowieka. Nie występują przypadkowo, ale jako wieloelementowe konsorcja zamieszkujące określone siedliska, tworzą mikrobiomy. W dobie najnowszych doniesień naukowych oraz niepohamowanego przepływu informacji, zdajemy sobie sprawę z tego, że mikroorganizmy pełnią ważną, choć nieuchwytną, rolę w naszym życiu. Mikroorganizmy stanowią o jestestwie człowieka – bez mikrobiomu, człowiek jest jałową planetą skazaną na zagładę. Jak ważna jest rola mikrobiomu, jak dalekosiężne w skutkach jest zachwianie w nim równowagi – to nie jest już tak oczywiste. Człowiek ostatecznie został strącony z piedestału władcy stworzenia – biologiczne fakty dokładają kamyczek do ogródka posthumanizmu. Mikrobiom to nie są organizmy obok – biernie wykorzystujące człowieka jako niszę ekologiczną. To mikrobiom pomaga człowiekowi trawić, walczyć z infekcjami, a także, co mniej oczywiste, wpływa na jego zachowanie. Człowiek nie istnieje obok milionów mikroorganizmów, ale to wespół z nimi jest tym, kim jest. Nie jesteśmy z milionami; jesteśmy milionami. W niniejszym wywodzie zamierzam przybliżyć złożoną tematykę ludzkiego mikrobiomu. Ukażę te oczywiste oraz te mniej oczywiste ekosystemy planety Człowiek. Pokażę również niezwykłą, często wielopoziomową sieć oddziaływań rządzącą tym światem. Poznanie ludzkiego mikrobiomu nie byłyby możliwe bez najnowszych zdobyczy techniki, dlatego przedstawię również wyzwania, które stawia metodologia tych badań. Wydaje się to istotne w kontekście możliwości transmisji tej tematyki na pole bio artu.
Microorganisms are an inseparable component of the world around us, including humans. They do not occur randomly, but they form multi-element consortia inhabiting specific habitats, they form microbiomes. In the era of the latest scientific reports and the unrestrained flow of information, we realize that microorganisms play an important, though elusive, role in our lives. Microorganisms constitute the human being - without a microbiome, the human is a barren planet condemned to destruction. It is not so obvious how important the role of the microbiome is, and what are the consequences of an imbalance in it. The human is finally knocked down from the pedestal of the ruler of creation - biological facts are added to posthumanism. Microbes are not organisms living next to us, passively using humans as an ecological niche. The microbiome helps human to digest, fight infections and, what is less obvious, affects his behaviour. Humans do not merely exist next to millions of microorganisms, but together with them, he is who he is. We are not with millions; we are the millions. In this article, I intend to introduce the complex topic of the human microbiome. I will describe the obvious and less obvious ecosystems of the planet Human. I will also show the unusual, often multi-level network of interactions that rule this world. Getting to know the human microbiome would not be possible without the latest technological achievements, so I will also present the challenges posed by the methodology of this research. It is important in the context of the possibility of transmitting information on this topic to the bio art.
Źródło:
Sztuka i Dokumentacja; 2019, 20; 95-104
2080-413X
Pojawia się w:
Sztuka i Dokumentacja
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synteza nanocząstek srebra przy użyciu ekstraktów roślinnych
Synthesis of silver nanoparticles using plant extracts
Autorzy:
Knurek, Jakub
Buchaj, Aleksandra
Garbacz, Monika
Powiązania:
https://bibliotekanauki.pl/articles/297726.pdf
Data publikacji:
2019
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
green synthesis
silver nanoparticles
nanotechnology
microbiology
antibacterial activity
zielona synteza
nanocząstki srebra
nanotechnologia
mikrobiologia
aktywność przeciwbakteryjna
Opis:
The field of nanotechnology is the most dynamic region of research in material sciences and the synthesis of nanoparticles is picking up significantly throughout the world. This trend is related to the possibilities of using them in many disciplines, including microbiology, biotechnology and laboratory diagnostics. Due to the high interest in nanoparticles synthesis, the methods of formation and stabilization of nanometric particles have become the subject of many studies in recent years. Medicinally active plants have proven to be the best reservoirs of diverse phytochemicals for the synthesis of biogenic silver nanoparticles. The resulting structures are characterized by optimal properties, and the method used is more ecological than chemical reduction. Accordingly, this review presents different methods of preparation silver nanoparticles and application of these nanoparticles in different fields.
Nanotechnologia jest jedną z najbardziej dynamicznych dyscyplin badań w dziedzinie inżynierii materiałowej, a liczba syntez nanocząstek metali znacząco rośnie na całym świecie. Ten trend związany jest z możliwościami wykorzystania ich w wielu dyscyplinach nauki, m.in. mikrobiologii, biotechnologii i diagnostyce laboratoryjnej. Ze względu na duże zainteresowanie nanocząstkami metody tworzenia i stabilizacji nanometrycznych cząstek stały się w ostatnich latach przedmiotem wielu badań. Udowodniono, że ekstrakty roślinne, zawierające zespół związków fitochemicznych, mogą być wykorzystywane do syntezy biogennych nanocząstek srebra. Powstałe struktury charakteryzują się stosownymi właściwościami, a metoda „zielonej” syntezy jest bardziej ekologiczna od innych technik. W związku z tym w artykule przedstawiono różne metody biosyntezy nanocząstek srebra oraz ich interdyscyplinarne zastosowania.
Źródło:
Inżynieria i Ochrona Środowiska; 2019, 22, 1; 63-74
1505-3695
2391-7253
Pojawia się w:
Inżynieria i Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Understanding the Synergic Corrosion Issues with Regard to the Water Treatment Station
Autorzy:
Włodarczyk, Renata
Majek, Klaudiusz
Powiązania:
https://bibliotekanauki.pl/articles/125250.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
chlorination
corrosion microbiology
pitting corrosion
synergy effect
water treatment station
Opis:
The paper presents the examples of damage of elements caused by incorrect assessment of pipeline work conditions. The presented damage cases resulted in the need to replace pipelines. This work is an analysis pertaining to the impact of chemical and microbiological synergy of corrosion on stainless steel pipelines. The paper investigates the corrosion mechanisms that may occur under normal operating conditions at each water treatment station, and the methods of counteracting the corrosion were indicated. The analysis of the corrosion mechanisms was formulated taking into account the design stage, – the correctness of the steel grade choice by the designer, the stage of implementation – the most common implementation errors, and the operational stage – optimization of the technological system work and the effects of the introduced changes. The analysis was carried out at a water treatment plant in Poland with a maximum flow of 20,000 m3 a day-1, which draws raw water from deep water intakes and from a surface intake. The treatment technology includes an aeration system (aeration) and a two-stage treatment process using sand and carbon filters. The disinfection process and prophylaxis in the water treatment plant is based on the use of chlorine gas.
Źródło:
Journal of Ecological Engineering; 2019, 20, 6; 90-96
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Vibrio cholerae Test on Fishery Products at Cirebon Test and Application of Fishery Products Technical Unit Agency, West Java, Indonesia
Autorzy:
Azhari, Aqila Mutiara Rizqyani
Apriliani, Izza Mahdiana
Syarifuddin, M.
Powiązania:
https://bibliotekanauki.pl/articles/1075702.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Vibrio cholerae
bacteria
fisheries product
microbiology test
seafood
Opis:
Fiheries products that will be exported or marketed domestically, must have the specified food safety criteria. One of the criteria that the products is safe to be marketed and consumed is free from the presence of pathogenic bacteria. One of the common pathogenic bacteria found in food is Vibrio cholerae. The purpose of this research aims to examine, isolate and confirm the presence of dangerous pathogenic bacteria V. cholerae which shouldn’t exist in fisheries products with sample Frozen cuttle fish, frozen baby octopus small cut and Pasteurized crab meat. This research was held from July-August 2018 at Cirebon Test and Application of Fishery Products Technical Unit Agency. Data is collected through direct observation or testing in a microbiology laboratory with conventional methods using special media for V. cholerae such as Alkaline Peptone Water (APW) and Thiosulfate Citrate Bile Salts Sucrose (TCBS). The testing is qualitative, so the results obtained are either positive or negative. The results of the research showed that there’s no pathogenic bacteria V. cholerae were found in tested fisheries products so that they were safe to consume and satisfied the standards to be marketed.
Źródło:
World Scientific News; 2019, 119; 192-203
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biological Stability of Water after the Biofiltration Process
Autorzy:
Zamorska, J.
Powiązania:
https://bibliotekanauki.pl/articles/124588.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biofiltration
microbiology of water
biological stability of water
flow cytometry
Opis:
One of the most frequently implemented processes in the water treatment technology is filtration through a biosorption bed. The techniques based on biochemical processes involving bacteria result in obtaining high quality of water. There are a number of different materials used as the filler material for biological filters. Carbon deposits are the most popular, due to their high effectiveness. The problem with the use of this process is the leaching of microorganisms from the biofilm and the biological stability of water thus obtained. There is a need to develop quick methods to assess the microbiological quality of this water. Modern techniques for determining the amount of microorganisms, such as flow cytometry and luminometry may be the right tools. The water collected for testing came from the Water Treatment Station located in the Podkarpackie voivodeship. The microbiological tests carried out in the analyzed water samples collected after the filtration process on granular activated carbon. Both traditional culture method and modern techniques used to determine the number of microorganisms (flow cytometry, luminometric ATP assay) demonstrated an increase in the number of microorganisms in the examined waters (in the water after the filtration process and in the water introduced into the water supply network) after the incubation process for 3 and 7 days at 15 and 22°C.
Źródło:
Journal of Ecological Engineering; 2018, 19, 5; 234-239
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of feeding system and sex on the performance and selected gastrointestinal features of fattening pigs
Autorzy:
Grela, E.R.
Czech, A.
Kusior, G.
Szczotka-Bochniarz, A.
Klebaniuk, R.
Powiązania:
https://bibliotekanauki.pl/articles/2087786.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Feeding system
gender
immunocastration
performance
digestibility
gut microbiology
Źródło:
Polish Journal of Veterinary Sciences; 2018, 21, 1; 157-165
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
What the old microbiologists knew...
Co wiedzieli dawni mikrobiolodzy…
Autorzy:
Nowak, A.
Powiązania:
https://bibliotekanauki.pl/articles/106468.pdf
Data publikacji:
2018
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
history of microbiology
biosphere
cycles of elements
historia mikrobiologii
biosfera
cykle składników
Opis:
Amazing is the fact that although the organisms have been known since the end of the seventeenth century, effective study of this group of organisms started after about 160 years, in the last two decades of the nineteenth century. The origins of science about bacteria were very difficult, there were many unknowns and conflict information. The research results provided by various scientists created complete chaos. From today’s perspective, it is difficult to imagine how it was possible, do research in such conditions, and obtain reliable results? Yet despite these difficulties, knowledge of our predecessors was neither so small nor so doubtful as might be supposed. On the contrary, it was surprisingly big and wide. What our predecessors knew about bacteria and especially their importance in nature? They knew that bacteria live everywhere, knew about their unlimited spread in the biosphere. The role of microorganisms in the mineralization of organic matter was known, as well as the circulation of matter in nature and role of bacteria in cycles of nutrient elements, and the solar energy as the driving force behind these changes. Today - although we understand these mechanisms much more accurately, we know a lot details and individual changes - but the basic outline of the functioning of the biosphere, valid until today created our predecessors. A look back at the beginning of the microbiology teaches us, how much can be achieved with seemingly primitive methods, if accompanied by a passion for research and imagination.
Źródło:
Chemistry-Didactics-Ecology-Metrology; 2018, 23, 1-2; 31-46
2084-4506
Pojawia się w:
Chemistry-Didactics-Ecology-Metrology
Dostawca treści:
Biblioteka Nauki
Artykuł

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