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Wyszukujesz frazę "staphylococcus aureus" wg kryterium: Temat


Tytuł:
Antibacterial activity of (PVP-ZrO2) nanocomposite against pathogenic bacteria
Autorzy:
Abdulrazaq, Raghad Abdullatif
Al-Ramadhan, Zainab A.
Khalaf, Hadeel H.
Powiązania:
https://bibliotekanauki.pl/articles/1112560.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Anti-Bacterial activity
Antibiotics
Klebsiella pneumoniae
Nanocomposities
PVP
Staphylococcus aureus
ZrO2
Opis:
The antibacterial activity of a PVP-ZrO2 nanocomposite was investigated against pathogenic bacteria S. aureus and K. pneumoniae after antibacterial sensitivity was determined and one isolate was chosen that showed more antibiotic resistance. Herein, the Co-culture technique was used to calculate percent reduction of bacteria. The results that were obtained in this method show that ZrO2 nanoparticles have inhibitory effect against pathogenic bacteria gram negative bacteria and gram positive bacteria - with reduction of growth reaching 100% to both S. aureus and K. pnumoniae at 5, 10, 15, 20 and 25% ZrO2, compared with control. The resistance patterns of S. aureus and K.pnuemonia isolates show the Moxifloxacin (MXF) is the best antibiotic for both bacteria - with sensitivity at 100%, while resistance to Ceftriaxone (CRO) is at 90% S. aureus, and at 80% K. pnumoniae. The polymer-nanocomposite was prepared by weight percentage wt. % of (PVP) being dissolved in (10) ml of distilled water, with weight percentages 5%, 10%, 15%, 20% and 25% of ZrO2 nanoparticles added.
Źródło:
World News of Natural Sciences; 2018, 18, 2; 187-194
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Silver-clay nanohybrid as a coating for improvement of the antibacterial properties of paper
Autorzy:
Alikhah, Tahereh
Babavand, Arash
Afra, Elyas
Ghasemian, Ali
Saraeian, Ahmadreza
Powiązania:
https://bibliotekanauki.pl/articles/342609.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
paper coating
silver-clay nanohybrid
antibacterial property
Escherichia coli
Staphylococcus aureus
Opis:
This comparative study was carried out to investigate the effect of nanosilver, silver-clay nanohybrid, and silver-milled clay nanohybrid coatings on the antibacterial characteristics of paper. Nanosilver (25 ppm) was used as a singleand double-layer coating. The results demonstrated that treatment with pure nanosilver was more efficient in the reduction of microbial growth. Also, milling of clay enabled better maintenance of silver nanoparticles, and led to a greater decrease in bacterial growth than in the case of the original silver-clay nanohybrid. Evaluation of the sustainability of antibacterial characteristics confirmed that, although pure nanosilver treatment achieved better performance in the first 15 minutes than nanohybrid samples, the performance of the nanohybrids improved with the passing of time. As expected, the treatments decreased the brightness of paper, while the opacity increased significantly; pure nanosilver treatment led to lower brightness than the others, and the opacity was higher in the case of the silver-clay nanohybrid than with the other treatments.
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2020, 62, 205; 109-124
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isolation of vanconycin resistant Staphylococcus aureus from the wounds of hospital patients in Uyo, Akwa Ibom State, Nigeria
Autorzy:
Anosike, I. K.
Ebana, R. U. B.
Edet, U. O.
Umoh, I. S.
Powiązania:
https://bibliotekanauki.pl/articles/1076716.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Methicillin
Staphylococcus aureus
Vancomycin
Wounds
antibiotic resistance
Opis:
Staphylococcus aureus is a very important human pathogen that generates a number of human infections. Isolation of vancomycin-resistant Staphylococcus aureus (VRSA) was carried out from wound samples of patients attending University of Uyo Teaching Hospital, Akwa Ibom state, Nigeria. A total of 45 wound samples from 15 patients were collected aseptically in triplicate, using sterile cotton swabs moistened in sterile normal saline. Microbiological analysis and susceptibility to vancomycin, including minimum inhibitory and minimum bactericidal concentrations (MIC and MBC), were carried out using standard methodologies. A total of 15 isolates were obtained and these showed varying MIC and MBC patterns. Out of the 15 S. aureus isolated, only one isolate had an MIC of approximately 4 µg/ml, while twelve isolates gave MIC values that ranged from 15.62 µg/ml to 250 µg/ml. The remaining 2 isolates gave MIC values that were ≥ 500 µg/ml. These 2 isolates exhibited alpha haemolysis on blood agar, unlike the others that were beta haemolytic. The results of the MBC also showed variations amongst the isolates. A total of 10 isolates gave MBC values that ranged from 62.5 µg/ml to 500 µg/ml, while the remaining 5 isolates gave MBC values that were ≥ 500 µg/ml. The high MIC and MBC values obtained showed that vancomycin-resistant Staphylococcus aureus is increasing at an alarming rate, and this accounts for the gradual decline in the effectiveness associated with the use of vancomycin. Given the widespread prevalence of VRSA, there is a need for newer therapeutics that can reverse this surge.
Źródło:
World News of Natural Sciences; 2019, 24; 134-144
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sery dojrzewające jako środowisko rozwoju patogenów
Ripened cheeses as pathogens growth environment
Autorzy:
Berthold, A.
Pluta, A.
Dolińska, M.
Powiązania:
https://bibliotekanauki.pl/articles/228836.pdf
Data publikacji:
2008
Wydawca:
Wyższa Szkoła Menedżerska w Warszawie
Tematy:
sery podpuszczkowe
zatrucia pokarmowe
Liseria monocytogenes
Salmonella spp.
Escherichia coli
Staphylococcus aureus
rennet cheeses
foot poisonings
Opis:
Celem artykułu jest omówienie możliwości rozwoju w serach podpuszczkowych dojrzewających drobnoustrojów patogennych, takich jak: Listeria monocytogenes, Escherichia coli. Salmonella sp. oraz Staphylococcus aureus. Przeanalizowano wpływ różnych czynników technologicznych wpływających na rozwój patogenów w serach. Dokonano przeglądu piśmiennictwa dotyczącego jakości mikrobiologicznej serów rynkowych. Przedstawiono przypadki zatruć pokarmowych wywołanych spożyciem serów dojrzęwająacych, zanieczyszczonych drobnoustrojami chorobotwórczymi.
The aim of the study was to review the possibilities of growth in rennet cheeses pathogenic microorganisms, such as: Listeria monocytogenes, Escherichia coli, Salmonella sp. and Staphylococcus aureus. The influence of some factors on the growth of pathogenic bacteria was analysed. The review of the literature concerning the microbiological quality of market cheeses was made. The cases of food pisonings, caused by consumption of rennet cheeses, contaminated with pathogenic bacteria were shown.
Źródło:
Postępy Techniki Przetwórstwa Spożywczego; 2008, 1; 79-84
0867-793X
2719-3691
Pojawia się w:
Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Proteomics in studies of Staphylococcus aureus virulence
Autorzy:
Bonar, Emilia
Wójcik, Iwona
Wladyka, Benedykt
Powiązania:
https://bibliotekanauki.pl/articles/1038964.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Staphylococcus aureus
proteomics
virulence factors
secretome
surfacome
Opis:
Staphylococcus aureus is a widespread, opportunistic pathogen that causes community and hospital acquired infections. Its high pathogenicity is driven by multifactorial and complex mechanisms determined by the ability of the bacterium to express a wide variety of virulence factors. The proteome secreted into extracellular milieu is a rich reservoir of such factors which include mainly nonenzymatic toxins and enzymes. Simultaneously, membrane proteins, membrane-cell wall interface proteins and cell wall-associated proteins also strongly influence staphylococcal virulence. Proteomics shows a great potential in exploring the role of the extracellular proteome in cell physiology, including the pathogenic potential of particular strains of staphylococci. In turn, understanding the bacterial physiology including the interconnections of particular factors within the extracellular proteomes is a key to the development of the ever needed, novel antibacterial strategies. Here, we briefly overview the latest applications of gel-based and gel-free proteomic techniques in the identification of the virulence factors within S. aureus secretome and surfacome. Such studies are of utmost importance in understanding the host-pathogen interactions, analysis of the role of staphylococcal regulatory systems and also the detection of posttranslational modifications emerging as important modifiers of the infection process.
Źródło:
Acta Biochimica Polonica; 2015, 62, 3; 367-381
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocena higieniczna procesu produkcyjnego makaronu
Hygienic assessment. of macaroni production process
Autorzy:
Burzynska, H.
Bachryj, F.
Bialkowska, I.
Debska, K.
Dziurowicz, Z.
Grubner, M.
Kozupa, J.
Lewicka, J.
Meinhardt, S.
Michnicki, A.
Nowotko, S.
Pastula, R.
Pawlowicz, W.
Rogalska, M.
Siwek, J.
Sturmowski, T.
Wilczynska-Stelmach, W.
Wiszniewska, I.
Ufnalowska, M.
Powiązania:
https://bibliotekanauki.pl/articles/875966.pdf
Data publikacji:
1978
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
makarony
sklad chemiczny
higiena zywnosci
oznaczanie
oznaczanie zawartosci
drobnoustroje
gronkowce
Salmonella
Staphylococcus aureus
zanieczyszczenia zywnosci
wyniki badan
Źródło:
Roczniki Państwowego Zakładu Higieny; 1978, 29, 1
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aminokwasy, glikany, peptydy i białka w ścieżkach diagnostycznych i terapeutycznych chorób cywilizacyjnych XXI wieku : projektowanie i charakterystyka fizykochemiczna oraz strukturalna
Amino acids, glycans, peptides and proteins in the diagnostic and therapeutic pathways of the 21st century civilization diseases : design, physicochemical and structural characterisation
Autorzy:
Bylińska, Irena
Dzierżyńska, Maria
Giżyńska, Małgorzata
Guzow, Katarzyna
Jankowska, Elżbieta
Jurczak, Przemysław
Kaczyński, Zbigniew
Karska, Natalia
Kowalczyk, Agnieszka
Kuncewicz, Katarzyna
Orlikowska, Marta
Sawicka, Justyna
Spodzieja, Marta
Szpakowska, Nikola
Szymańska, Aneta
Wieczerzak, Ewa
Witkowska, Julia
Rodziewicz-Motowidło, Sylwia
Powiązania:
https://bibliotekanauki.pl/articles/2200549.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Chemiczne
Tematy:
fluorophores
fluorescence spectroscopy
antimicrobial activity
anticancer activity
Cystapep
Stahylococcus aureus
antimicrobial compounds
amyloidogenic protein
mutagenesis
fibrilization
proteasome
aging
neurodegeneration
self-assembling peptides
tissue engineering
biomaterials
immune checkpoints
peptide inhibitors
immunotherapy
ligands of TAP protein
viral diseases
NMR structure of the UL49.5 protein
glycans
glycoconjugates
fluorofory
spektroskopia fluorescencyjna
aktywność przeciwdrobnoustrojowa
aktywność antynowotworowa
Staphylococcus aureus
związki przeciwbakteryjne
białko amyloidogenne
mutageneza
fibrylizacja
proteasom
procesy starzeniowe
neurodegeneracja
peptydy samoorganizujące
inżynieria tkankowa
biomateriały
punkty kontrolne układu immunologicznego
inhibitory peptydowe
immunoterapia
ligandy białka TAP
choroby wirusowe,
struktura NMR białka UL49.5
glikany
glikokoniugaty
Opis:
The civilization diseases of the 21st century are non-infectious disorders, affecting a large part of modern society. They are associated with the significant development of industry and technology, and hence with environmental pollution and an unhealthy lifestyle. These factors have led to the development of many civilization diseases, which currently include: cardiovascular diseases, respiratory diseases, diabetes, obesity, malignant tumors, gastrointestinal diseases, mental disorders and allergic diseases. The development of technologies, including modern therapies and new drugs, resulted in increase in life expectancy. This creates a global problem of an aging population with an increasing number of diseases of the old age, i.e. dementias. In addition, sedentary lifestyles and changing diets are the reasons why more and more people develop metabolic diseases, as well as neurological and cognitive disorders characterized by progressive damage to nerve cells and dementia. Currently, problem on a global scale is also the growing resistance to existing antimicrobial drugs. Therefore, the scientists face many challenges related to searching for the causes of these diseases, their diagnosis and treatment. Scientific research conducted at the Department of Biomedical Chemistry at the Faculty of Chemistry of the University of Gdańsk is part of this research trend. In this publication, we discuss various research topics with the long-term aim of solving the problems associated with the diseases mentioned above. The following chapters are dedicated to (i) looking for new effective fluorophores with diagnostic and anti-cancer activity; (ii) designing of new compounds with antibacterial and antiviral activity and their synthesis; (iii) investigating the mechanisms of amyloid deposit formation by human cystatin C and possibilities of inhibition of this process; (iv) designing and studies of compounds activating the proteasome with the potential to suppress the development of neurodegenerative diseases; (v) designing peptide fibrils and hydrogels as drug carriers; (vi) searching for peptide inhibitors of immune checkpoint as potential drugs for immunotherapy; (vii) studying the mechanism of action of selected herpesviruses by determining the structure of viral proteins and (viii) studying the composition of natural glycans and glycoconjugates in order to better understand the mechanisms of interaction of bacteria with the environment or with the host.
Źródło:
Wiadomości Chemiczne; 2022, 76, 5-6; 393--431
0043-5104
2300-0295
Pojawia się w:
Wiadomości Chemiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The inhibition of methicillin-resistant Staphylococcus aureus by essential oils isolated from leaves and fruits of Schinus areira depending on their chemical compositions
Autorzy:
Celaya, Liliana
Alabrudzińska, Marta
Molina, Ana
Viturro, Carmen
Moreno, Silvia
Powiązania:
https://bibliotekanauki.pl/articles/1039327.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Schinus areira
essential oils
antibacterial
Methicillin-resistant Staphylococcus aureus
Opis:
Schinus areira L. is a native plant from South America used for centuries in traditional medicine. Here, we investigate the antimicrobial activity of four essential oils extracted from leaves and fruits of S. areira exhibiting different chemical profiles. The antibacterial activity against the human pathogenic bacteria Staphylococcus aureus susceptible as well as methicillin resistant strain was assessed by the broth microdilution assay. The results showed that the limonene-rich oil extracted from the leaves and fruits have potent antibacterial effect on S. aureus ATCC 25923, while the α-phellandrene-rich fruit oil having a lower content of limonene showed the lowest antibacterial efficacy. In this work, for the first time, we demonstrated the bactericidal activity of essential oils isolated from fruits and leaves of S. areira against susceptible and methicillin resistant S. aureus strains. All results point out the potential use of the S. areira oils as antimicrobial agents to be used, at least against Staphylococcal infections.
Źródło:
Acta Biochimica Polonica; 2014, 61, 1; 41-46
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antibiofilm activity of mushroom extracts against Staphylococcus aureus
Autorzy:
Čuvalová, Anna
Strapáč, Imrich
Handrová, Livia
Kmeť, Vladimir
Powiązania:
https://bibliotekanauki.pl/articles/2183555.pdf
Data publikacji:
2018-12-31
Wydawca:
Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
Tematy:
biofilm
fungi
ixodid ticks (Acari)
milk
Staphylococcus aureus
Opis:
Mushrooms are a renowned source of products with an array of bioactivities, from antibacterial to antiviral, cytotoxic, antifeeding, antifungal or antioxidant and might be a valuable resource in the search of new bioactive extracts to inhibit biofilm production. We demonstrate the effect of five mushroom water extracts Macrolepiota procera, Pleurotus ostreatus, Auricularia auricula-judae, Armillaria mellea and Laetiporus sulphurous on biofilm formation of four Staphylococcus aureus strains isolated from ixodid ticks (Acari) and ewe´s milk. The PCR was used for detection of virulence genes (hla, isdA, B, bbp, sirB, fnbpA, sdrE, agr II). The ability of biofilm formation and anti-biofilm activity of mushrooms extracts was assessed in a quantitative crystal violet assay. The biofilm formation of S. aureus strains was significantly reduced by all mushrooms extracts (p < 0.001). We showed that more significant anti-biofilm effect of the extracts was of Staphylococcus aureus isolated from ixodid ticks in comparison to Staphylococcus aureus isolated from ewe´s milk. In the present study, A. mellea, P. ostreatus, L. sulphurous, A. auricula-judae and M. procera extracts inhibited biofilm formation by 70.87%, 67.00%, 64.14%, 62.77% and 47.71%, respectively. The results suggest that compounds in mushrooms extracts might be useful to control and handle detrimental infections caused by animal and human pathogens.
Źródło:
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae; 2018, 3 (suppl.); 17-23
2543-8832
2545-0999
Pojawia się w:
Annales Universitatis Paedagogicae Cracoviensis Studia Naturae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zakażenie lodów gronkowcem złocistym
Autorzy:
Czarnowska, W.
Wierzchowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/872987.pdf
Data publikacji:
1956
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
gronkowiec zlocisty
lody
zakazenia
czlowiek
choroby czlowieka
zaklady mleczarskie
badania naukowe
Staphylococcus aureus
infection
man
human disease
dairy plant
scientific research
Źródło:
Roczniki Państwowego Zakładu Higieny; 1956, 07, 2
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Production of bioactive metabolites from different marine endophytic Streptomyces species and testing them against methicillin-resistant Staphylococcus aureus (MRSA) and cancer cell lines
Autorzy:
El-Gendy, M.M.A.A.
Mohamed, Z.K.
Hekal, N.Z.
Ali, F.M.
Yousef, A.E.M.
Powiązania:
https://bibliotekanauki.pl/articles/81078.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Staphylococcus aureus
infection
methicillin-resistant Staphylococcus aureus
endophyte
Streptomyces
bioactive metabolite
Actinomycetes
marine invertebrate
anticancer activity
cancer cell line
lung cancer
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2018, 99, 1
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of CD4plus T cell epitopes from Staphylococcus aureus secretome using immunoinformatic prediction and molecular docking
Autorzy:
Francis, D.
Kumar, A.
Chittalakkottu, S.
Powiązania:
https://bibliotekanauki.pl/articles/2096359.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
CD4+
T cell
epitope prediction
secretory proteins
Staphylococcus aureus
peptide vaccine
molecular docking
Opis:
One major reason for the lack of clinical success of Staphylococcus aureus vaccine candidates is the inability of the antigens to develop a CD4+ T cell-mediated immune response. Hence, it is important to identify CD4+ T cell antigens from S. aureus. CD4+ T cells are activated following the presentation of epitopes derived from exogenous proteins on HLA class II molecules. Fifty-nine secretory proteins of S. aureus were analyzed computationally for the presence of HLA class II binding peptides. Fifteen-mer peptides were generated, and their binding to 26 HLA class II alleles was predicted. The structural feasibility of the peptides binding to HLA-II was studied using molecular docking. Of the 16,724 peptides generated, 6991 (41.8%) were predicted to bind to any one of the alleles with an IC50 value below 50 nM. Comparative sequence analysis revealed that only 545 of the strong binding peptides are non-self in the human system. Approximately 50% of the binding peptides were monoallele-specific. Moreover, approximately 95% of the predicted strong binding non-self peptides interacted with the binding groove of at least one HLA class II molecule with a glide score better than !10 kcal/mol. On the basis of the analysis of the strength of binding, non-self presentation in the human host, propensity to bind to a higher number of alleles, and energetically favorable interactions with HLA molecules, a set of 11 CD4+ T cell epitopes that can be used as vaccine candidates was identified.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 1; 43-54
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antibiotic Susceptibility Test of Bacteria Isolated From Fruit Juices Sold in Cafes and Restaurants of Debre-Markos Town, North Western Ethiopia
Autorzy:
Geta, Kindu
Kebede, Ameha
Chemedissa, Meseret
Powiązania:
https://bibliotekanauki.pl/articles/1076786.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Antibiotics
Antimicrobial resistance
B. cereus
Debre Markos
E. coli
Enterobacter
Fruit juices
Klebsiella
Pathogens
Ps. aeruginosa
Salmonella
Shigella
Staphylococcus aureus
Opis:
The prevalence of antimicrobial resistance among food pathogens has increased during recent decades. In this work, pathogenic bacteria such as Staphylococcus aureus, Salmonella spp., Shigella spp., and E. coli were isolated following standard methods. The bacterial isolates were then tested for their sensitivity to common antibiotics using the disc diffusion method on Mueller-Hinton Agar. All of the pathogenic bacteria were found to be resistant to erythromycin and almost all were sensitive to penicillin.
Źródło:
World News of Natural Sciences; 2019, 24; 365-371
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microbiological safety of fruit juices consumed in cafes and restaurants of Debre Markos town, north western Ethiopia
Autorzy:
Geta, Kindu
Kebede, Ameha
Chemedissa, Meseret
Powiązania:
https://bibliotekanauki.pl/articles/1076778.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Aspergillus niger
Bacillus cereus
Debre Markos
Enterobacter
Enterococcous
Escherichia coli
Fruit juice
Hygiene
Klebsiella
Microbial safety
Penicillium
Salmonella
Serratia
Shigella
Staphylococcus aureus
Streptococcus
Opis:
Improperly prepared fresh fruit and vegetable juices are recognized as an emerging cause of food borne illnesses. Therefore, this study was aimed at evaluating the microbiological safety of fresh fruit juices marketed in Debre Markos town and their hygienic conditions of preparations. Thirty-six fruit juices samples were collected from 6 cafés and restaurants of Debre Markos town and analyzed for total aerobic viable bacterial count (TAVBC), total staphylococcal count (TSC), aerobic spore forming bacterial count (ASFBC), total coliform count (TCC), fecal coliform count (FCC), yeast and mould count (YMC). The spread plate method was used for the isolation of microorganisms on appropriate selective media. All isolates were characterized following standard methods. Bacterial and fungal species were isolated following standard methods, while questionnaires were distributed to 30 juice makers to obtain preliminary information on their hygienic and safety practices. Results show that the mean TAVBC, ASFBC, TSC, yeast and mould, TCC and FCC of mango were 2.2±0.48×106, 0.13±0.04×105, 0.004×105, 1.1±0.2×106, 0.15±0.05×105, 5.7±3.73×104 and 0.06±0.04×104, cfu/ml, respectively. Moreover, the mean of TAVBC, ASFBC, TSC, YMC, TCC, and FCC of avocado juice were 3.6±0.6×106, 0.08±0.02×105, 0.27±0.07×105, 1.2±0.4×106, 0.02±0.01×105, 6.46±3.7×104, and 0.2±0.1×104 cfu/ml, respectively. The bacterial isolates were identified as S. aureus, E. coli, Klebsiella spp. B. cereus, Enterobacter spp., Enterococcous spp., Streptococcus spp., and Serratia spp., while the identities of the fungal isolates were Fusarium spp., Mucor spp. and S. cerevisiae. The results also showed that the microbial loads of most of the fruit juices were higher than the specifications set for fruit juices sold in the Gulf region and other parts of the world. Most venders obtained fruit from the open market and all juice makers lacked special training in food hygiene and safety. Therefore, regular training and health education on food hygiene and safety is recommended for juice handlers to improve the quality of fresh fruit juices in the study area.
Źródło:
World News of Natural Sciences; 2019, 24; 287-298
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Choroba Morela u owiec i kóz
Morels disease in sheep and goats
Autorzy:
Gliński, Z.
Żmuda, A.
Powiązania:
https://bibliotekanauki.pl/articles/28763531.pdf
Data publikacji:
2022
Wydawca:
Krajowa Izba Lekarsko-Weterynaryjna
Tematy:
owce
kozy
choroby zwierzat
choroba Morela
epidemiologia
etiologia
Staphylococcus aureus ssp.anaerobius
patogeneza
objawy chorobowe
zmiany anatomopatologiczne
rozpoznanie
leczenie
profilaktyka
Źródło:
Życie Weterynaryjne; 2022, 97, 10; 665-668
0137-6810
Pojawia się w:
Życie Weterynaryjne
Dostawca treści:
Biblioteka Nauki
Artykuł

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