scholarly journals Microbial Assessment of Bed Linens in Ekiti State University Students’ Hostels

Author(s):  
T. O. Olowomofe ◽  
J. O. Oluyege ◽  
A. O. Ogunlade ◽  
D. T. Makinde

Bed linen is clearly recognized as a potential reservoir for microorganisms and could be a vector of disease transmission. The present study was aimed at isolating and characterizing bacteria and fungi from different kinds of bed linen of student in Ekiti State University hostels. Pour plate method was used for the enumeration of total bacteria count from the posterior and anterior end of the bed linen. The average bacteria count for the anterior and posterior end was 7.46 and 7.16 Log10 CFU/ml respectively. The most dominant microbial species were bacteria and these were mostly found in the environment and on human skin. The bacteria isolated were Staphylococcus aureus, Staphylococcus epidermidis, Proteus mirabilis, Enterobacter aerogenes, Bacillus cereus, Escherichia coli and Klebsiella aerogenes. Bacillus cereus had the highest frequency of occurrence (25%), followed by Staphylococcus aureus (15%), Escherichia coli (15%), Klebsiella aerogenes (15%), Staphylococcus epidermis (15%), Enterobacter aerogenes (10%) and Proteus mirabilis (5%). The fungi isolates were Aspergillus sulphureus, Aspergillus fumigatus, Aspergillus niger, Aspergillus flavus and Fusarium spp. Antibiotics susceptibility test was carried out on the bacteria isolates with gram negative bacteria showing resistance to Cotrimoxazole and gram positive bacteria showing resistance to Amplicillin. Most of the bacteria isolates have multiple antibiotics resistance. The bacterial isolates were susceptible to Ciprofloxacin. Plasmid profiling was also done with Escherichia coli having three high molecular weight plasmids, Bacillus cereus and Enterobacter aerogenes do not possess plasmid. The identified species are suspected to be opportunistic pathogens for human, representing a risk for people with weakened immune system, especially in cases of super-infection.

2020 ◽  
Vol 3 (2) ◽  
pp. 96
Author(s):  
Isna Romadhona ◽  
Fauna Herawati ◽  
Rika Yulia

Antibiotik merupakan obat yang digunakan untuk mengatasi dan mencegah infeksi bakteri. Penggunaan antibiotik yang tidak tepat dapat menimbulkan berbagai masalah, diantaranya pengobatan akan lebih mahal dan juga risiko terjadinya resistensi bakteri terhadap antibiotik. Penelitian ini bertujuan untuk mengetahui profil penggunaan antibiotik dan profil peta kuman pada pasien gangren diabetes melitus di sebuah RSUD di Kabupaten Gresik serta untuk mengetahui kesesuaian penggunaan antibiotik dengan mengacu pada Permenkes Republik Indonesia No. 2406/Menkes/PER/XII/2011. Data penggunaan antibiotik diperoleh dari catatan Rekam Medis pada periode Januari – November 2017. Data penggunaan antibiotik dihitung dengan menggunakan rumus DDD/100 pasien-hari rawat. Hasil perhitungan DDD/100 pasien-hari rawat menunjukkan hasil sebesar 470,11 DDD/100 pasien-hari rawat. Peta kuman pada pasien gangren, melaporkan adanya bakteri Enterobacter cloacae 24%, Escherichia coli 18%, Staphylococcus aureus 15%, Acinetobacter baumannii 9%, Pseudomonas aeruginosa 6%, Citrobacter youngae 6%, Enterobacter aerogenes 6%, Proteus vulgaris 6%, Staphylococcus schleiferi 6%, Klebsiella pneumoniae 3%, dan Proteus mirabilis 3% . Penggunaan antibiotik seftriakson dan metronidazol pada pasien gangren diabetes melitus di sebuah RSUD di Kabupaten Gresik pada periode Januari – November 2017 telah sesuai dengan pedoman penggunaan antibiotik berdasarkan Permenkes Republik Indonesia No. 2406/Menkes/PER/ XII/2011, yaitu antibiotik golongan sefalosporin generasi III yang lebih aktif terhadap Enterobacteriaceae dan antibiotik golongan nitroimidazol yang dapat mengobati infeksi bakteri basil anerob Gram-Negatif.


2012 ◽  
Vol 17 (1) ◽  
Author(s):  
Noryawati Mulyono ◽  
Bibiana Widiyati Laya ◽  
Siuling Susanti Rusli

Damar batu adalah resin natural, atau lebih tepatnya adalah hasil hutan bukan kayu dari tumbuhan Shorea eximia. Getah ini dihasilkan sebagai metabolit sekunder yang diinduksi oleh malnutrisi dan kekeringan. Penelitian ini bertujuan melakukan evaluasi aktivitas antibakteri dalam metabolit sekunder tersebut. Resin dilarutkan dalam heksana, etil asetat, dan etanol secara terpisah selama 24 jam dengan konsentrasi 0,5 g L -1 . Selanjutnya, aktivitas antibakteri diuji terhadap Escherichia coli, Salmonella typhi, Proteus mirabilis, Pseudomonas aeruginosa, Chromobacter violaceum, Streptococcus sp., Staphylococcus aureus, S. epidermidis, dan Bacillus cereus. Tiga komponen utama dalam damar batu yang mempunyai aktivitas antibakteri adalah δ-kadinen, valencene, dan spatulenol.


Author(s):  
Priscylla Andrade Volkart ◽  
Matheus Souza Spagiari ◽  
Delmar Bizani

O presente trabalho tem como objetivo estudar o comportamento e a resistência de bactérias em relação a agentes químicos com ação antimicrobiana em diferentes concentrações e determinar a quantidade mínina para que ocorra a inibição dos microrganismos. Serratia marcescens, Proteus mirabilis, Pseudomonas aeruginosas, Escherichia coli, Bacillus cereus e Staphylococcus aureus, foram os microrganismos utilizados, os quais foram semeados em meio Plate Count Agar (PCA). Na sequência, aplicaram-se os testes com os agentes controladores, nas concentrações de 0,5 %, 1,5%, 3,0%, 5,0%, 7,0% e 10,0 %, e os álcoois pré-determinados. A identificação da eficácia foi definida atraves frequência e índice de inibição. Foram realizadas análises de 13 substâncias nas seis diferentes concentrações, ou seja, 468 amostras totalizadas no experimento. Com relação aos microrganismos estudados observou-se, dentre os componentes escolhidos, uma ampla resistência, mesmo em concentrações maiores. O estudo demonstrou variação de resistência e sensibilidade, sendo ácido ascorbico o agente com a maior concentração inibitória mínima e as menores concentrações foram do peróxido de hidrogênio. Considerando importância do uso desses compostos na inibição e no controle de agentes bacterianos em diferentes áreas, torna-se vital o conhecimento da amplitude de seu espectro, assim alguns produtos, nas diluições recomendadas para uso, revelaram possuir atividade antibacteriana mais reduzida ou inexistente.


2016 ◽  
Vol 27 (2) ◽  
pp. 83 ◽  
Author(s):  
José Enrique Oliva-Menacho ◽  
Marco Antonio García-Hjarles ◽  
José Arturo Oliva-Candela ◽  
Hugo Saturnino De la Cruz-Roca

Objetivos: Determinar el grado de contaminación bacteriana con bacterias patógenas de los estetoscopios del personal médico en un hospital general de Lima, Perú. Material y métodos: Estudio de tipo observacional, descriptivo y transversal, realizado en el Hospital Nacional Arzobispo Loayza, entre los meses de enero y juniodel 2013. Se estudiaron 124 muestras de estetoscopios del personal médico en las siguientes áreas: UCI 20; neonatología 13; quemados 3; medicina 52; emergencia 36. Se recolectaron las muestras con hisopos humedecidos, en condiciones estériles (En presencia de un mechero de vidrio para alcohol) y luego fueron introducidos en tuboscon preparado de caldo BHI (Infusión cerebro corazón) para ser incubados por 24 horas a 37°C; se cultivó en Agar sangre, Agar MacConkey, Agar manitol y Agar cetrimidepara su posterior determinación de bacterias patógenas por procedimientos bioquímicos ,luego se identificó la susceptibilidad bacteriana con la técnica de Kirby- Bauer. Resultados: De los 124 estetoscopios estudiados; 114 (91,9%) estuvieron contaminados; se aislaron 123 cepasbacterianas: Staphylococcus spp coagulasa negativa 106(86,1%), Staphylococcus aureus 5(4,0%), Enterobacter aerogenes 4 (3,2%), Acinetobacter spp 2(1,6%), Pseudomonas aeruginosa 4(3,2%), Klebsiella Pneumoniae 1(0,8%) y Escherichia coli 1(0,8%). Conclusiones: El aislamiento de bacterias patógenas sugiere que el estetoscopio debe ser considerado como un vector de la infección nosocomial.


2016 ◽  
Vol 11 (31) ◽  
pp. 113-122
Author(s):  
Carla Franco Porto Belmont Souza ◽  
Luiz Eduardo Souza da Silva Irineu ◽  
Renan Silva De Souza ◽  
Renato da Silva Teixeira ◽  
Ivina Sanches Pereira ◽  
...  

A resistência microbiana tem se mostrado um problema de proporções mundiais, causando estado de morbidade e mortalidade em diversos pacientes. Em vista disso, tem crescido a busca por métodos alternativos naturais de profilaxia. A investigação clínica sugere que o Extrato de Cranberry está entre as melhores propostas de prevenção natural. O Cranberry (Vaccinium macrocarpon) é um fruto que tem crescido comercialmente pelo sabor e propriedades benéficas à saúde. Dentre as formas comercializadas estão: o suco, o chá e as cápsulas contendo o extrato seco. A ação desta planta está relacionada ao tratamento de doenças do trato urinário, por possuir substâncias que inibem a adesão bacteriana ao epitélio do trato urinário, dificultando sua proliferação e reprodução. Dentre todas as infecções relacionadas à assistência a saúde, a Infecção do Trato Urinário é a mais frequentemente associada a procedimentos invasivos. Se não for tratada, pode resultar em complicações como pielonefrite aguda, bacteremia e pionefrose. Portanto, cranberry pode ser uma nova alternativa para o combate das infecções uroepiteliais, por ser um produto natural de preço acessível, e com formas de comercialização diversificada, ao contrário dos antimicrobianos convencionais, que por sua vez são caros e podem acabar causando resistência nos micro-organismos. Este trabalho teve como objetivo avaliar in vitro a atividade antimicrobiana do extrato de Cranberry, adquirido em farmácia de manipulação, sobre 8 micro-organismos isolados de infecções urinárias. As cepas utilizadas, adquiridas da coleção da FIOCRUZ, foram: Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, Proteus mirabilis, Serratia marscecens, Staphylococcus aureus, Enterococcus faecalis e Enterococcus faecium. No estudo, foram utilizados o caldo Mueller Hinton (MH), Extrato de Cranberry e as bactérias patogênicas. O ensaio foi realizado em triplicata, com o uso de um controle de crescimento dos micro-organismos e o experimento para avaliação do crescimento bacteriano na presença do extrato. A turbidez foi medida com o auxílio de um espectrofotômetro, no comprimento de onda de 600 nm, antes e após 24 horas de incubação à 37 ºC. O procedimento forneceu a Densidade Ótica, do qual possibilitou a identificação da inibição microbiana. Para análise estatística foi utilizado o Teste t de Student. O Extrato de Cranberry apresentou atividade antimicrobiana sobre as bactérias Staphylococcus aureus, Klebsiella pneumoniae, Escherichia coli, Serratia marscecens e Enterococcus faecalis (p < 0,05), confirmando seu efeito benéfico em infecções urinárias. No entanto, não teve efeito inibitório significativo sobre Pseudomonas aeruginosa, Proteus mirabilis e Enterococcus faecium (p > 0,05).


2021 ◽  
Author(s):  
Davood Gheidari ◽  
Morteza Mehrdad ◽  
Saloomeh Maleki ◽  
Samanesadat Hosseini

Abstract With the increase of general knowledge and the advancement of science and technology, antibacterial substances were used more than antibiotics. In our current study, the antibacterial virtues of CFO/BiOI nanocomposite were investigated due to its high importance on Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Bacillus cereus. MIC, MBC , Disk Diffusion and IC50 tests Cefalotin (CF), Amoxicillin (AMX), Gentamicin (GM), Trimethoprim-sulphamethoxazole (SXT) and Ceftriaxone (CRO) antibiotics in concentration 30W, 10i, 10t , 25h and 30 were used to find the antibacterial properties of the synthesized nanocomposite, respectively. For the synthesis of nanocomposites polyethylene glycol (PEG) and sulfonic acid was used as a solvent. It is noteworthy that the synthesis was performed by heat dissolution method without the presence of surfactant. Also, various techniques such as X-Ray Diffraction(XRD), Scanning Electron Microscope (SEM), High resolution mapping and Energy Dispersive X-ray spectroscopy (EDAX) have been used to determine the properties of produced nanocomposites. SEM test results showed that the formed nanoparticles were globular and their size was limited area of 22 to 34 nm. The results showed CFO / BiOI nanocomposite exhibits strong significant biological activity against Bacillus cereus. The results of MBC (Minimum Bactericidal Concentration) and MIC (Minimum Inhibition Concentration) tests for CFO/BiOI nanocomposites on bacteria were examined in the range of 0.12-0.48 mg/ml and 0.06 to 0.24 mg/ml respectively. According to the results, the minimum IC50 value was determined at a concentration of 0.061 mg/ml. On the other hand, the most resisting and susceptible bacteria in this method were Pseudomonas aeruginosa and Bacillus cereus, respectively. These findings are identical to those of a prior study on CoFe2O4 nanoparticles antibacterial properties. MBC of the nanocomposites, 50 µl from all the tubes that showed no obvious bacterial growth were distributed on BHI agar plates and incubated for 24 h at 37 ◦C. The MBC endpoint is defined as the lowest concentration which killed 98% of the bacterial population.


2013 ◽  
Vol 4 (3) ◽  
Author(s):  
Velma Buntuan ◽  
Sarah M Warouw

Abstract: Diarrhoea is an increase of defecation frequency greater than usual (more than three times daily), associated with changes of the form and consistency of stools, soft or fluidy, and with or without mucus or blood. The causative agents of diarrhoea are e.g. Campylobacter, Salmonella, Shigella, dan Escherichia coli. Microbes’ sensitivities against antibiotics can change from time to time, and from area to area. The purpose of this study was to find out the profile of aerobes that caused diarrhoea in childen under five admitted to the Children’s Department, at the Prof Dr.R.D. Kandou General Hospital, as well as the sensitivity and resistency tests of microbes against antibiotics. Feces samples of the children were cultured, and microbial identifications and sensitivity tests against antibiotics were done. The causative microbes were Escherichia coli (40%); and Klebsiella aerogenes, Klebsiella pneumonia, and Enterobacter aerogenes (each of them 3.3%). Sensitivity tests against meropenem were 96.7% and against amikacin 90.0%. Resistency tests to antibiotics showed sulpha methoxazole-trimethoprim 100%, cefazolin 100%, chloramphenicol 96.7%, doxycicline 83.3%, ampicillin 100%, and ceftriaxon 60%. Conclusion: the microbe that most caused diarrhoea in children under five admitted to the Children’s Department of the Prof dr.R.D. Kandou General Hospital was Escherichia coli, and the most sensitive antibiotics against this microbe were meropenem and amikacin.Key words: microbes’ profile, diarrhoea, under five, sensitivity, antibioticsAbstrak: Diare adalah frekuensi buang air besar yang bertambah dari biasanya (lebih dari tiga kali), ditandai dengan perubahan bentuk dan konsistensi tinja yang lembek sampai cair, dengan atau tanpa darah atau lendir dalam tinja. Penyebab diare antara lain: Campylobacter, Salmonella, Shigella, dan Escherichia coli. Kepekaan kuman terhadap antibiotik dapat berbeda dari waktu ke waktu dan dari daerah ke daerah. Tujuan penelitian ini untuk mendapatkan pola kuman aerob penyebab diare pada balita, serta kepekaan dan resistensi kuman terhadap antibiotik. Feses balita yang rawat inap di Bagian Ilmu Kesehatan Anak RSUP Prof. Dr. R.D Kandou Manado dengan diare dibuat kultur, identifikasi kuman, dan uji kepekaan terhadap antibiotik. Kuman penyebab diare yaitu Escherichia coli (40%), Klebsiella aerogenes, Klebsiella pneumonia, serta Enterobacter aerogenes (masing-masing 3,3%). Kepekaan kuman terhadap antibiotik meropenem 96,7% dan amikacin 90,0%. Resistensi antibiotik diperoleh terhadap sulpha methoxazole trimethoprim sebesar 100%, cefazolin 100%, chloramphenicol 96,7%, doxycicline 83,3%, ampicillin 100%, dan ceftriaxon 60%. Simpulan: kuman penyebab diare terbanyak pada anak balita yang dirawat inap di Bagian Anak RSUP Prof Dr. R.D. Kandou Manado ialah Escherichia coli dan kepekaan antibiotik yang terbaik ialah meropenem dan amikasin.Kata kunci: pola kuman, diare, balita, kepekaan, antibiotik


2010 ◽  
Vol 5 (1) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Ashraf El-Bassuony ◽  
Sameh AbouZid

A novel prenylated flavanoid, isonymphaeol-D (1), together with two known compounds, isonymphaeol-B (2) and nymphaeol-B (3), were isolated from Egyptian propolis. The structures of the isolated compounds were determined by various spectroscopic methods. 1 exhibited antibacterial activity against Gram-positive (Bacillus cereus, Staphylococcus aureus) and Gram-negative strains (Serratia sp., Pseudomonos sp., Escherichia coli).


1996 ◽  
Vol 40 (5) ◽  
pp. 1311-1313 ◽  
Author(s):  
C Martin ◽  
X Viviand ◽  
A Cottin ◽  
V Savelli ◽  
C Brousse ◽  
...  

Ceftriaxone concentrations in abdominal tissues were evaluated at different stages of open prostatectomy. Ceftriaxone was administered as antibiotic prophylaxis, and 15 consecutive patients were given a single dose of ceftriaxone (1,000 mg intravenously in 1 min) 30 min before surgery. Ceftriaxone concentrations in tissue were determined at three stages of the surgical procedure; upon the opening of the abdominal cavity, during the prostatectomy, and upon the closure of the abdominal cavity. Samples of the following tissues or sample were assayed: epiploic and abdominal-wall fat; Retzius' space, bladder, and prostate tissue; and urine. During the different stages of the surgical procedure, for all patients, and in the different tested tissues, ceftriaxone concentrations greater than or equal to the cutoff point (4 micrograms/g of tissue) were measured. The highest concentrations were obtained in the bladder (43 +/- 18 micrograms/g) and in the prostate (35 +/- 18 micrograms/g). In fatty tissues, concentrations were between 13 +/- 5 and 22 +/- 8 micrograms/g. All patients (15 of 15) had ceftriaxone levels in tissue greater than the MICs for the potential pathogens (Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, and Proteus mirabilis). In conclusion, during open prostatectomy and after the use of a single dose of ceftriaxone (1,000 mg), high antibiotic levels were obtained throughout the surgical procedure in the tissues potentially involved in postoperative infection.


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