African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5195

AJMR Articles

Antimicrobial susceptibility of Flavobacteriaceae isolates from Nile Tilapia (Oreochromis niloticus) in Tanzania

January 2020

This study aimed to assess antimicrobial susceptibility of members of the family Flavobacteriaceae isolated from Nile tilapia (Oreochromis niloticus). Antimicrobial susceptibility of 67 Flavobacteriaceae isolates originating mainly from ponds and Lake Victoria against 19 antimicrobial agents was determined by the broth micro dilution method. Overall, most isolates were susceptible to enrofloxacin (97%; MIC90 2 μg/ml)...

Author(s): Elisa Mwega, Augustino Chengula, Duncan Colquhoun, Stephen Mutoloki, Robinson Mdegela, Øystein Evensen and Yngvild Wasteson  

Comparative bacteriological analysis of stored borehole water sources in Oyo town, Oyo State, Nigeria

January 2020

Water contamination is one of the leading causes of deaths and diseases worldwide, accounting for the deaths of more than 14,000 people daily, majority being children under 5 years old, therefore periodic monitoring of municipal water supplies are necessary. Comparative bacteriological analyses of twenty five samples of stored borehole water from five hostels in a tertiary institution in Oyo, Oyo State, was carried out...

Author(s): Oluwasanmi Anuoluwapo ADEYEMI, Tobiloba Kehinde EFUNWOLE and Afolake Atinuke OLANBIWONINU

Seroprevalence of contagious bovine pleuropneumonia and contagious caprine pleuropneumonia in the Middle-Belt of Nigeria

January 2020

The aim of the study was to establish the seroprevalence of contagious bovine pleuropneumonia (CBPP) and contagious caprine pleuropneumonia (CCPP) among cattle and small ruminants received at abattoirs in Ilorin, Nigeria. A total of 643 blood samples were taken from 324 cattle and 319 sheep and goats. These samples were screened for CBPP and CCPP using rapid latex agglutination tests. The majority were from the north of...

Author(s): Olorunshola Isaac Dayo, Daodu, Babatunde Oluwafemi, Ajiboye, Busayo, Folaranmi Emanuel Bode, Nicholas Robin A. J., Adegboye David S. and Peters Andrew R.  

Studies on optimization of L-glutaminase production under submerged fermentation from marine Bacillus subtilis JK-79

January 2020

In the current study, a marine strain Bacillus subtilis JK-79 capable of producing L-glutaminase enzyme, was analyzed for maximal L-glutaminase production. The Plackett-Burman design (PBD) was applied to determine the significant variables. Optimum conditions of the significant variables on L-glutaminase production were determined by the Central Composite Design (CCD) of response surface methodology. Maximum...

Author(s): Jambulingam Kiruthika and Saranya Murugesan

Microbiological and parasitological contamination of vegetables, water and soil in rural communities

January 2020

Microbiological and parasitological contamination of vegetables, water and soil in rural communities of a municipality in the state of Bahia, Brazil, was assessed. Samples of Lactuca sativa, L., Coriandrum sativum and Solanum lycopersicum, soil, and irrigation water were analyzed between August and October, 2015. Total coliforms (TC), Escherichia coli, molds and yeasts on vegetables, soil and water, heterotrophic...

Author(s): Juciene de Jesus Barreto da Silva, Felipe Silva de Miranda, Jamille de Souza Almeida, Ana Lucia Moreno Amor and Isabella de Matos Mendes da Silva  

Efficacy of two diagnostic tests for the detection of infectious bursal disease viruses in chicken from different types of bursal samples

January 2020

Infectious Bursal Disease (IBD) is an economically important irreversible immunosuppressive disease of young birds. The present study was designed to confirm the efficacy of two common diagnostic tests for the detection of Infectious Bursal Disease Virus (IBDV) from the three types of bursal samples collected from a recent outbreak in layer and broiler chickens of Gazipur district, Bangladesh. This study compared the...

Author(s): Fahmida Afrin, M. M. R. Chowdhury, Chang-Yeon Cho, Seungchang Kim, Hee-Jong Roh, Dong-Kyo Kim, Md. Alimul Islam and Sukumar Saha

Evaluation of three commercialized rapid point-of-care tests for detection of anti-hepatitis C virus antibodies in Burkina Faso

December 2019

This study aimed to evaluate the diagnostic performance of commercially rapid point-of-care (POC) tests used for HCV antibodies detection.  This is a case-control study conducted in Ouagadougou between December 2014 and January 2015. Three POC for HCV antibodies detection (SD Bioline HCV test®, Anti-HCV dipstick® and First response® HCV card test) marketed in Burkina Faso were evaluated. Architect...

Author(s): Ouedraogo H. Gautier, Ouandaogo H. Siaka, Zida Sylvie, Compaoré T. Rebeca, Sagna Tani, Sawadogo Salam, Kouanda Seni, Traoré Yves and Barro Nicolas

Virulence characteristics and phylogenetic background of antibiotic-resistant Enterococcus faecalis from abattoir, poultry and clinical origin in Ado-Ekiti, Nigeria

December 2019

Enterococcus faecalis is a major cause of nosocomial infection in human and severe extra-intestinal infections in animals. Enterococcus spp possesses the ability to acquire and spread genes linked with antimicrobial resistance which makes them an important nosocomial pathogen. This study aims to determine the distribution of antibiotic resistance and virulence genotype of Enterococcus faecalis in animal, poultry and...

Author(s): Abiodun Ojo, Adetunji Olawale, Pius Okiki, Folusho Oyinloye, Tolulope Ogunnusi, Amos Onasanya and Oyewale Morakinyo  

Foodborne toxinfections caused by virus: Characteristics of the main viruses, prevention, treatment and clinical method of laboratory diagnosis by RT-qPCR

December 2019

Foodborne viruses were recognized among the top-rated food safety priorities and have become a greater concern to the food industry over the past few years. Food safety experts agreed that control measures for viruses throughout the food chain are required. This manuscript provides a description of foodborne viruses (Rotavirus, Adenovirus, Norovirus, Astrovirus, Hepatitis A, Hepatitis E, and Poliovirus) and their...

Author(s): Karina Teixeira Magalhães-Guedes  

Evaluation of lactic acid bacteria isolated from fermented mustards in lowering hypercholesterol by using bile salt hydrolase (BSH) activity and bile salt de-conjugation

December 2019

This work evaluates lactic acid bacteria (LAB) obtained from fermented mustards for lowering cholesterol. The LAB strains’ ability to reduce cholesterol in vitro was determined using activity of bile salt hydrolase (BSH) and deconjugation of bile salt in vitro. The LAB strains were examined for their ability to resist acid and bile salt. Strains that can reduce cholesterol adhere to Caco-2 cells and they were...

Author(s): Shu Chen Wang, Chen Kai Chang, Shu Chia Chang, Chih Kuang Chiu and Pin-Der Duh

Assessment of bacteriological quality of water sources from an agrarian settlement in South-East Nigeria

December 2019

This study assessed the bacteriological quality of groundwater, rainwater and surface water sourced from an agrarian settlement in South-eastern Nigeria. Agamede, Amede, Ihenyi, Mgbuji and Umuhu communities in Eha-Amufu served as sampling locations. Samples were sourced from River Ebenyi, hand-dug wells and rooftop harvested rainwater. Bacterial isolation, identification and enumeration followed standard methods....

Author(s): Emmanuel lkechukwu Nnamonu, Felix Joel Ugwu, Obiageli Constance Ejilibe, Ogonna Christiana Ani, Paul Emenike Martins, Samuel Osemedua Onyeidu and Blessing Uchechukwu Onyeidu

Screening of fungal contaminants in banana tissue cultures in Jkuat, Kenya

November 2019

Tissue culture is prone to high costs of production arising from losses incurred from fungal contamination. The aim of the study was to  characterise fungal contaminants and elucidate the exhibited mode of resistance to most preferred sterilants. Twenty nine fungal samples were collected at the different stages of tissue culture growth, using purposive sampling technique. Morphology results were confirmed by...

Author(s): Eunice M. Kithaku, Anne W. T. Muigai, Johnstone O. Neondo and Cecilia M. Mweu  

Heat shock impact on the growth of Bacillus spp. (SUBB01) and its surveillance in minimal medium under shaking condition

November 2019

Heat shock proteins (HSPs) are a family of proteins that are produced by all living organisms in response to exposure to stressful condition. The present research aims to study the physiology of Bacillus spp. (SUBB01) under aeration in diverse culture media and temperature at 47, 48, 49, 50, 52, 53 and 54°C. Bacterial growth was measured through enumeration of the viable and culturable growing cells that...

Author(s): Mahenaj Alo, Asif Shahriar, Talha Bin Emran, Arkajyoti Paul, Zia Uddin and Mycal Dutta  

Passive surveillance of clinical poultry diseases in an Upazila Government Veterinary Hospital of Bangladesh

November 2019

The present study is aimed at investigating clinical poultry diseases in an Upazila Government Veterinary Hospital of Bangladesh through passive surveillance and to know the frequency distribution of antimicrobial drugs prescription pattern. The study was conducted in Ramu Upazila Government Veterinary Hospital under Cox’s Bazar district of Bangladesh from February to March, 2016. A total of 180 cases including 73...

Author(s): Abdullah Al Momen Sabuj, Tamim Mahmud, Nanda Barua, Md. Ashiqur Rahman, Md. Saiful Islam and Md. Akramul Bary  

Assessment of bacterial contamination and milk handling practices along the raw milk market chain in the north-western region of Rwanda

November 2019

This study was conducted to assess raw milk bacterial loads and micro-organisms associated with milk handling practices and raw milk chain in the North-western region of Rwanda. A multistage sampling method was used to collect sixty-seven raw milk samples that were analyzed for milk quality at four stages of the raw milk chain: dairy farmers, milk hawkers, milk collection centres (MCC) and milk kiosks. Total bacterial...

Author(s): Jean Pierre M. Mpatswenumugabo, , Lilly C. Bebora, George C. Gitao, Victor A. Mobegi, Blaise Iraguha and Benjamin Shumbusho  

The bacterial diversity in infected tissue pus of an East Asian finless porpoise

November 2019

Two East Asian finless porpoises (Neophocaena asiaeorientalis sunameri) in Ningbo, East China Sea, China, were observed to be bacterially infected between the fat layer and muscle layer. The microbial communities in pus samples were identified by metagenome sequencing 16S in the PacBio platform and explored the relationship between emaciation and bacterial infection. The present paper was the first report on bacterial...

Author(s): Caiwen Wu#, Zhe Hong#, Aamir Ibrahim, Di Zhang, Lin Wang, Ting Li and Bingyao Chen  

Antimicrobial activity of cotton and silk fabrics dyed with Datura stramonium (Jimson weed) plant leaf extracts

November 2019

Functional finishes are agents that are applied to fabrics to make them suitable for specific uses and contribute a specific attribute to a fabric without altering its appearance.  In this context, the present study reveals the importance of dyed fabrics with Datura stramonium plant leaf extracts to control antibiotic-resistant bacteria, which have been a threat to human health and posed noticeable challenges...

Author(s): Alex Musinguzi, Josphat Igadwa Mwasiagi, Aaron Wanyama and Onesmas Gumisiriza  

Assessment of drugs pressure on Escherichia coli and Klebsiella spp. uropathogens in patients attending Abobo-Avocatier Hospital, North of Abidjan (Côte d’Ivoire)

November 2019

The problem of antibiotic resistance of uropathogens appears in Abobo municipality to be worsening because of the overuse and misuse of antibiotics. This study aims to assess the impact of drugs pressure on uropathogenic Escherichia coli and Klebsiella spp. strains isolated from patients attending Abobo-Avocatier Hospital. The study was conducted in patients suffering from urinary tract infection. Urine samples of...

Author(s): Innocent Allepo ABE, Mathurin KOFFI, Paulin Didier SOKOURI, Bernardin Ahouty AHOUTY, Martial Kassi N’DJETCHI, Siriki SIMARO, Edwige Abla SOKOURI, Barkissa TRAORE, Thomas Konan KONAN, William YAVO, Sanogo Abiba TIDOU and Simon-Pierre N’GUETTA  

Utilization potential of quality protein maize in spiced ogi

November 2019

The high incidence of protein energy malnutrition among children under 5 years in Nigeria informed this study. Quality protein maize (QPM) produces more lysine and tryptophan than most modern varieties of maize. It has been reported to be economically superior to traditional maize. This research focuses on QPM ogi fortified with indigenous food spices in order to improve its health benefits and organoleptic properties....

Author(s): Ejigbo E. A., Farinde E. O. and Olanipekun O. T.

High frequency of Torque Teno virus (TTV) among Egyptian hemodialysis patients

October 2019

Very little reports are yet available for the infection rate of Torque Teno virus (TTV) among hemodialysis patients in Upper Egypt. Thus, the aim of this study was to assess the frequency and the possible genotypes of TTV in chronic renal failure patients undergoing dialysis. This cross-sectional study was carried out between August 2016 and February 2017 in three haemodialysis units in Minia, Egypt. Blood samples were...

Author(s): Noha A. Hassuna, Medhat Abdel-Fattah, Shrouk Omran, Wael M. Abd Elghany, Rasha F. Ahmed and Reham Ali Ibrahem

Isolation and characterization of potential phosphate solubilizing bacteria in two regions of Senegal

October 2019

Many soils of the inter-tropical regions are P-deficient because of their high fixing power and low P content. Rock phosphate resources used to produce the phosphate fertilizers are exhausted and chemical fertilizer are causing environmental degradation. This issue raised the question of sustainability of fertilization and subsequently has enhanced the interest in the use of microorganisms as biofertilizers. The aim of...

Author(s): Christian Valentin Nadiéline,, Mame Farma Ndiaye, Saliou Fall,, Tatiana Krasova,, Antoine Le Quéré, and Diégane Diouf,  

Characterization of bacterial pathogens associated with milk microbiota in Egypt

October 2019

Milk is a substantial source of nutrients needed by all humans across lifespan development. Given its nutritional composition, milk is considered a vehicle for various microbes including beneficial and pathogenic bacteria. In this study, 270 milk samples comprising raw cow and buffalo milk and pasteurized milk with different shelf-life durations were tested along with pasteurized organic milk for the presence of...

Author(s): Hager Yehia Shalaby, Kholoud Baraka, Madiha Salah Ibrahim and Eman Mohammad Khalaf  

Impact of vessels on sediment transport and diversity in Lake Taihu, China

October 2019

In shallow lakes, waves from different sources play a major role in sediment transport and the release of associated nutrients. This study was conducted to analyze the impacts of waves generated by wind or vessels, on nutrient concentrations and microbial diversity in China’s third largest lake, Taihu. The study area is fixed at 100 m length of sailing vessel and 10 m width from where water samples were collected,...

Author(s): Qhtan Asmaa and Yiping Li  

Diketopiperazine alkaloids produced by the endophytic fungus Penicillium citrinum and evaluation of their antileishmanial activity

October 2019

Chromatographic fractionation of the antileishmanial extract obtained from fermentation of the endophytic fungus Penicillium citrinum, isolated from leaves of Ageratum myriadenia, yielded three diketopiperazine alkaloids; cyclo(L-Pro-L-Leu) (1), cyclo-(L-Pro-L-Phe) (2) and tryprostatin B (3). The structures of these compounds were established on the basis of spectroscopic methods and comparison with the literature....

Author(s): Luiza Guimarães Tunes, Vívian Nicolau Gonçalves, Daniela Nabak Bueno, Carlos Leomar Zani, Luiz Henrique Rosa and Betania Barros Cota  

Prevalence of HEV markers among healthy and patients with hepatitis B and C in Upper Egypt

October 2019

Hepatitis E virus (HEV) infection has a worldwide distribution and represents an important cause of acute hepatitis. This study aimed to investigate the frequency of HEV infection, and risk factors associated with this infection in healthy individual and patients with hepatitis B and C in Upper Egypt. Samples were collected from different governorates (Luxor, Assuit, Aswan and Sohag governorates) in Upper Egypt. Serum...

Author(s): A. M. El-Adly  

Probiotics Lactobacillus strains: A promising alternative therapy against to biofilm-forming enteropathogenic bacteria?

October 2019

Biofilms formation stands out in context of persistent intestinal infections caused by Enterobacteriaceae, which are associated with a high resistance to antimicrobial agents’ and phagocytosis by host defense cells. Hence, understanding the mechanisms involved in this process becomes major for the development of new preventive and therapeutic strategies. Lactic acid bacteria, including species of the genus...

Author(s): Mariane Silveira Magalhães Fernandes, Maria Leilah Monte Coelho Lourenço, Brendda Miranda Vasconcelos and Victor Alves Carneiro,

Prevalence and antibiotic susceptibility patterns of extended spectrum beta-Lactamase-producing Klebsiella oxytoca isolated from urine samples of patients visiting private laboratories in Abakaliki Metropolis

October 2019

Studies have shown that Klebsiella oxytoca is a major cause of infections in humans. This study was designed to determine the prevalence and antibiotic resistance pattern of extended spectrum beta-lactamase (ESBL)-producing K. oxytoca from urine samples of patients visiting private laboratories in Abakaliki, Ebonyi State. A total of 150 mid-steam urine samples of patients visiting three main private laboratories in...

Author(s): Iroha I. R., Okeh E. N., Moses I. B., Nwakaeze E. A., Ugbo E. N., Kalu A. C, Onuora A. L. and Ude I. U.  

Effect of abattoir wastes on stream quality in the Bolgatanga municipality, Ghana-west Africa

October 2019

This research was undertaken to determine abattoir wastes effect on the stream quality along Kollaa stream in Sawaba area of Bolgatanga municipality. The study also determined the microbiological quality and some physicochemical parameters of the stream that takes delivery of untreated waste from the abattoir and the extent of pollution through discharge of waste from abattoir sites into stream water. Three water...

Author(s): Adetunde L. A., Diedong P. and Ninkuu V.  

Qualitative assessment of Uvaria chamae (bush banana) crude extracts against wound isolated strains of Pseudomonas aeruginosa and Proteus mirabilis alongside resistance and plasmid profiles determination of the isolates

October 2019

Uvaria chamae is a plant used traditionally in treatment of wounds and other ailments. This work was conducted on qualitative assessment of crude extracts of U. chamae against wound isolated strains of Pseudomonas aeruginosa and Proteus mirabilis, determining the resistance and plasmid profiles of the isolates. Standard techniques were employed in crude extraction of roots and leaves of the plant followed by...

Author(s): Dora Imefon Udoh, Ubong Samuel Ekong, Bassey Bassey Etang and Nse Abasi Edet Udo  

Prevalence of intestinal schistosomiasis infections among school children in Danane, Western Côte D’Ivoire

September 2019

Intestinal schistosomiasis is very common in children and cause significant morbidity. Danané is located in the west of the Côte d’Ivoire which is an area where intestinal schistosomiasis transmission is established. The Ministry of Health of Côte d'Ivoire which have acceded to the global goal of eliminating these diseases as a public health problem, has adopted a five year strategic plan in...

Author(s): Pulchérie Christiane Marie Kiki-Barro, Abibatou Konaté, Kondo Fulgence Kassi, Kpongbo Etienne Angora, Henriette Vanga-Bosson, Vincent Djohan, Akoua Valérie Bédia-Tanoh, Assohoun Jean Sebastien Miézan, William Yavo and Eby Ignace Hervé Menan,  

Antimicrobial and antioxidant activities of endophytic fungi extracts isolated from Carissa carandas

September 2019

This is the first report of endophytic fungi derived from Carissa carandas producing bioactive compounds in Thailand. The aims of this research were to evaluate the antimicrobial and antioxidant activities of extracts from endophytic fungi, identify the potential fungal isolates by phylogenetic analysis and analyze the composition of the potential crude extract by gas chromatography-mass spectrometry (GC-MS). The...

Author(s): Preuttiporn Supaphon and Sita Preedanon  

Predisposing factors and cost Implications of pulmonary tuberculosis in patients attending federal medical centre Makurdi, Nigeria

September 2019

The predisposing factors and the cost implications of pulmonary tuberculosis (TB) in patients attending Federal Medical Centre, Benue State, Makurdi, was investigated. Information on socio-economic and demographic characteristics of the patients was obtained using a structured questionnaire. The female had a higher (56.5%) number of TB patients than the male (43.5%). Most of the TB patients were married (52%). A larger...

Author(s): O. Vange, E. U. Umeh and E. T. Azua

Construction of a genetically engineered strain of nattokinase and assessment of its fibrinolytic activity

September 2019

A strain of Bacillus natto was isolated from natto and found to have a high yield of nattokinase. The aprN and pro-aprN gene fragments, encoding nattokinase from Bacillus natto, were amplified using two pair of primers and were expressed in Bacillus subtilis WB800N host cells using the pHT43 plasmid as a vector. In this system, the effect of leader peptides on nattokinase activity, revealing that these leader peptides...

Author(s): Li Tian, Wenke Zhou and Youhong Zhang  

Evaluation of inactivated vaccine against fowl cholera developed from local isolates of Pasteurella multocida in Ethiopia

September 2019

Fowl cholera caused by Pasteurella multocida is among the serious infectious diseases of poultry in Ethiopia. This study was conducted to develop a vaccine from local strains of P. multocida and evaluate its performance. Inactivated vaccine was prepared following the OIE standards in three adjuvant formulations (oil, alum and gel). The performance of the different formulations was evaluated at different dose rates (0.5...

Author(s): Wubet W., Bitew M., Mamo G., Gelaye E., Tesfaw L., Sori H., Zewdie T. and Abayneh T.

Molecular characterization of Acinetobacter baumannii from patients with prolonged hospital stays in three tertiary hospitals of Kano Metropolis, Northwestern Nigeria

September 2019

Acinetobacter baumannii is one of the most important opportunistic bacterial pathogens that cause serious health care associated complications in hospitalized patients. This leads to prolong hospital stay which increase cost to both healthcare provider and family of the patients. The study aimed at molecular characterisation of A. baumannii from patients with prolonged hospital stays in three tertiary hospitals of Kano...

Author(s): Alkali Bashir, Adamu Almustapha Aliero, Abdurrazak Muhammad Idris, Hamisu Umar Takalmawa, Sarkinfada Faruk, and Agwu Ezera,

Region of acquisition of urinary tract infection (UTI) may be an important parameter while treating UTI cases

September 2019

The study recently published on urinary tract infection (UTI) cases at Najran University Hospital, Najran region of Saudi Arabia (Alshabi et al., 2019), though small, only on 19 cases, have been concluded beautifully, “regional clinical data regarding the prevalence and efficacy of antibiotics should be taken into consideration along with the treatment guidelines”. The authors reported a study on only 19...

Author(s): Bhoj Raj Singh  

Anti-dermatophytic activity of hexane extracts of Azadirachta indica A. Juss.

August 2019

Dermatophytes cause superficial fungal infections that pose public health problem to man and animals. Long term treatment with antifungal agents is required to control these infections. Various parts of Azadirachta indica are claimed to have significant medicinal value in treatment of infections especially ringworm. To determine the antifungal activity of the oil and fractions against dermatophytes isolated from...

Author(s): Ungo-kore H. Y., Ibrahim Y. K. E. and Tytler B. A.  

Prevalence of urinary tract infection and antibiotic resistance pattern in pregnant women, Najran region, Saudi Arabia

August 2019

Urinary Tract Infection (UTI) is one of the commonest infectious disease in pregnancy, and in pregnancy we have very limited number of antibiotics to treat the UTI.  This study was conducted on 151 patients who attended the gynecology clinic during the study period. Nineteen UTI proven cases of UTI were studied for prevalence of microorganism and sensitivity pattern against different antibiotics. Among the bacteria...

Author(s): Ali Mohamed Alshabi, Majed Saeed Alshahrani, Saad Ahmed Alkahtani and Mohammad Shabib Akhtar  

Detection of multidrug-resistant enterobacteria simultaneously producing extended-spectrum β-lactamases of the PER and GES types isolated at Saint Camille Hospital Center, Ouagadougou, Burkina Faso

August 2019

Resistance to a wide variety of common antibiotics is observed among clinical strains designated as extended-spectrum β-lactamase (ESBL) producers. These produce enzymatic proteins that effectively inactivate cephalosporins and aztreonam and are a serious global health problem that complicates treatment strategies. Many studies report a high prevalence of ESBL producers among Gram-negative bacilli. The purpose of...

Author(s): Mètuor Dabiré Amana, Tiemtoré Rahimatou Yasmine Wend-Kuni, Bangré Yasmine Aminata, Zohoncon Théodora Mahoukédé, Sougué Serge, Zongo Jacob Koudbi and Simporé Jacques  

Optimisation of biological wastewater treatment for yeast processing effluent using cultured bacteria: Application of response surface methodology

August 2019

In the present study, the interactive effects of temperature and cultured bacteria on the performance of a biological treatment system of wastewater from a local yeast producing plant were investigated. The main objective of this study was to optimize the operating parameters that reduce organic load and colour. Biological treatment was conducted using a Central Composite Design (CCD) and optimised using Response...

Author(s): Manhokwe S., Shoko S. and Zvidzai C.  

Chemical analysis of the biomass of a native strain of Spirulina subsalsa Oersted ex Gomont 1892 (Spirulinaceae) cultivated in low-cost saline medium

August 2019

Spirulina subsalsa, a filamentous cyanobacterium, was first described by Gomont in 1892. This microorganism has been subject to biotechnological evaluations, due to their high content of proteins and pigments. The objective of this study was to analyze the biochemical composition of the biomass of a native strain of S. subsalsa cultivated in low-cost saline medium and harvested in the exponential and stationary phases...

Author(s): Lolymar Romero Maza, Miguel Angel Guevara Acosta and Roraysi José Cortez Mago

Antibiotic resistant phenotypes of Staphylococcus aureus isolated from fresh and fermented milk in parts of Nasarawa State, Nigeria

August 2019

This work was aimed at determining the occurrence and antibiogram of Staphylococcus aureus isolated from fresh and fermented milk samples in parts of Nasarawa State, Nigeria. A total of 180 samples comprising of fresh raw milk, bulk milk, nono, and kindirmo were collected over a period of 6 months (May to October, 2017). Standard microbiological procedures were employed in the isolation, identification,...

Author(s): Aliyu Y., Abdullahi I. O., Whong C. M. Z. and Olayinka B. O.       

Antimicrobial resistance profile of Escherichia coli isolates recovered from diarrheic patients at Selam Health Center, Addis Ababa, Ethiopia

August 2019

Antimicrobials have been playing an important role in preventing illness and death associated with infections due to bacteria. However, the emergence and spread of resistance by pathogens have decreased the effectiveness of the commonly prescribed antimicrobials. Intestinal Escherichia coli are among bacterial pathogens that are endowed with such resistance traits because they are important source and reservoir of genes...

Author(s): Abebe Aseffa Negeri, Eyasu Tigabu Seyoum, Rajiha Abubeker Ibrahim and Hassen Mamo  

Extended spectrum beta-lactamase production and plasmid mediated quinolone resistance among lactose non-fermenting nterobacteriaceae isolated from poultry sources in Calabar, Nigeria

July 2019

This study investigated the co-carriage of plasmid mediated quinolone resistance (PMQR) and extended spectrum beta-lactamase (ESBL) producing lactose non-fermenting (LNF) Enterobacteriaceae isolated from poultry birds. This was a descriptive cross-sectional study carried out between September, 2016 and March, 2017. The Kirby-Bauer disk diffusion method was used to determine the antimicrobial susceptibility patterns....

Author(s): Nchawa Yangkam Yhiler, Bassey Enya Bassey, Inyang-etoh Paul, Useh Monday Francis, Asuquo Anne and Angela Okocha-Ejeko

Methicillin-resistant Staphylococcus spp. in the nasal cavity of dental surgeon’s professors

July 2019

The aim of the study is to investigate the methicillin-resistant Staphylococcus spp. nasal colonization among dental surgeon professors. Dental surgeon professors of a Higher Education Institution (HEI) responded to a questionnaire covering sociodemographic, employment and behavioral data, and were subjected to clinical specimen collection by nasal swab. Identification and susceptibility testing of bacteria were...

Author(s): Camila Fonseca Alvarenga, Késia Cristina de Oliveira Batista, Evandro Leão Ribeiro,  Lara Stefânia Netto de Oliveira Leão Vasconcelos,  Juliana Lamaro Cardoso,  Maria Cláudia Porfirio André, Dayane de Melo Costa, Enilza Maria Mendonça de Paiva and Anaclara Ferreira Veiga Tipple,

Detection of mutations in ampC promoter/attenuator gene in Escherichia coli from dairy cows in Rio de Janeiro and Mato Grosso, Brazil

July 2019

Escherichia coli present the ampC naturally, and the observation of phenotypical resistance to cefoxitin is related to this gene deregulation. Mutations in the regulatory region in ampC cause exaggerated expression. The most frequent alterations in the E. coli AmpC promoter/attenuator leading to this overexpression is described at the positions: -88, -82, -42, -18, -1 and +58. Mastitis studies were carried in Rio de...

Author(s): Gabrielli Stefaninni Santiago, Irene da Silva Coelho , Beatriz Oliveira de Farias , Tatiani Abreu de Alencar, Amy Borges Moreira, Greiciane França Bronzato , Miliane Moreira Soares de Souza, Bruno Gomes de Castro, Helena Neto Ferreira and Shana de Mattos de Oliveira Coelho

Detection of tetracycline resistant E. coli and Salmonella spp. in sewage, river, pond and swimming pool in Mymensingh, Bangladesh

July 2019

Antibiotic resistant bacteria and resistance genes in the environment are major health problem globally. The present study was undertaken to detect antibiotic resistant Escherichia coli and Salmonella spp. in sewage, river, pond and swimming pool. Emphasis was given on tetracycline resistant phenotype and genotype, since, tetracycline is a widely used antibiotics. Isolation and identification of antibiotic resistant E....

Author(s): Ashrafun Nahar, Md. Amirul Islam, Md. Abdus Sobur, Md. Jannat Hossain, Sumaiya Binte Zaman, Md. Bahanur Rahman, S. M. Lutful Kabir and Md. Tanvir Rahman  

Microbial community structure in confluence region of Huang, Wei and Luo rivers in Guanzhong plain in central China

June 2019

To investigating microbial abundance and community in confluence region of Huang, Wei and Luo rivers in Guanzhong plain in central China, plates culture were used to visualize quantity of soil microorganism colony, polymerase chain reaction and Denaturing Gradient Gel Electrophoresis (DGGE) were used to detect microorganism abundance and community. The results show that microorganism reduce in winter with the...

Author(s): Yalin Li, Xiaoxing Ye and Qingqing Wang

Shiga toxigenic, enteroinvasive and enteropathogenic Escherichia coli in fish from experimental fish farm (Layo), Côte d’Ivoire

June 2019

The objective of this study was to know the sanitary quality of fish coming from Layo farm. Twenty fishes (Oreochromis niloticus), were selected in four ponds and Escherichia coli were isolated in gills and viscera according to microbiological methods. One hundred and twenty strains of E. coli were isolated, and their virulence was performed by polymerase chain reaction (PCR) using specific primers. Eleven (11) strains...

Author(s): Kouadio-Ngbesso Nadège, Kouamé-Sina Sylvie Mireille, Koffi Ahua René, Toulé Aubin Cyrille, Adingra Ama Antoinette and Dadié Adjéhi Thomas

Comparative in vitro antimicrobial effect of Sarcocephalus latifolius (Sm.) E. A. Bruce leaves and roots on foodborne pathogens

June 2019

Sarcocephalus latifolius (Sm.) E. A. Bruce is a plant used traditionally to treat a wide range of infectious diseases, including foodborne ones. This study aimed to compare its roots and leaves extract antibacterial effects in vitro. Thus, these organs were collected, dried and powdered for the extractions and phytochemical screening. Four extracts (water, ethyl-acetate, methanol and ethanol) were tested on ten...

Author(s): Carlos C. Ahoyo, Pauline M. Deguenon, Durand Dah-Nouvlessounon, Haziz Sina, Thierry D. Houehanou , Alain S. Yaoitcha, Lamine Baba-Moussa and Marcel R. B. Houinato

Page 5 of 104, showing 50 records out of 5195 total, starting on record 201, ending on 250