ORCID Profile
0000-0002-6041-5027
Current Organisation
University of Tasmania
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Publisher: Future Science Ltd
Date: 03-2016
DOI: 10.4155/FSO.15.91
Publisher: Wiley
Date: 20-01-2020
Publisher: MDPI AG
Date: 28-04-2023
DOI: 10.3390/ANTIBIOTICS12050829
Abstract: The objective of this study was to examine the frequency and extent of antibiotic-resistant pathogens in seafood sold in Malaysia, using a systematic review and meta-analysis approach to analyze primary research studies. Four bibliographic databases were systematically searched for primary studies on occurrence. Meta-analysis using a random-effect model was used to understand the prevalence of antibiotic-resistant bacteria in retail seafood sold in Malaysia. A total of 1938 primary studies were initially identified, among which 13 met the inclusion criteria. In the included primary studies, a total of 2281 seafoods were analyzed for the presence of antibiotic-resistant seafood-borne pathogens. It was observed that 51% (1168/2281) of the seafood was contaminated with pathogens. Overall, the prevalence of antibiotic-resistant seafood-borne pathogens in retail seafood was 55.7% (95% CI: 0.46–0.65). Antibiotic-resistant Salmonella species had an overall prevalence of 59.9% (95% CI: 0.32–0.82) in fish, Vibrio species had an overall prevalence of 67.2% (95% CI: 0.22–0.94) in cephalopods, and MRSA had an overall prevalence of 70.9% (95% CI: 0.36–0.92) in mollusks. It could be concluded that there is a high prevalence of antibiotic-resistant seafood-borne pathogens in the retail seafood sold in Malaysia, which could be of public health importance. Therefore, there is a need for proactive steps to be taken by all stakeholders to reduce the widespread transmission of antibiotic-resistant pathogens from seafood to humans.
Publisher: Springer Science and Business Media LLC
Date: 26-10-2015
Publisher: Elsevier BV
Date: 2018
DOI: 10.1016/J.FOODRES.2017.10.068
Abstract: Under the current commercial practice, live mussels only have 10days' shelf-life. Observed spoilage indices reduce consumers' acceptance, palatability and shelf-life of modified atmosphere packaged (MAP) live mussels. The aims of this study are to isolate specific spoilage bacteria from modified atmosphere packaged live mussels, evaluate isolates for microbial spoilage indices using qualitative methods and volatile metabolites production. Forty-six hydrogen sulphide producing bacteria were isolated and evaluated for trimethylamine n-oxide (TMAO) reduction, proteolytic and lipolytic activities and hydrogen sulphide production. Twenty-eight isolates were obtained from pouch water and 18 from mussel meat. All the isolates could produce H
Publisher: Elsevier BV
Date: 07-2019
DOI: 10.1016/J.FOODRES.2018.12.017
Abstract: There is little information on the microbial communities associated with modified atmosphere (MA)-packaged live mussels. There is also a dearth of information on how pre-packaging depuration modifies the microbial communities and spoilage of live mussels. Amplicon sequencing was used to describe spoilage microbial succession in MA-packaged live mussels during storage at 4 °C. Proteobacteria, Cyanobacteria and Firmicutes were the three major phyla observed in the mussel meat and pouch water of undepurated and depurated mussels. Among these phyla, Cyanobacteria was more predominant on day 0 in mussel meat of undepurated and depurated mussels while Proteobacteria was predominant in commercially-depurated mussels. Synechococcus was apparently dominant on days 0-7 in the meat of undepurated mussels and days 0-10 in depurated mussels. Shewanella was dominant on day 0 in commercially-depurated mussels and dominant on day 15 in undepurated while Acidaminococcus was dominant in depurated mussels on day 15. Psychromonas was observed to be dominant in commercially-depurated mussels on day 7 and further shifted to Acinetobacter by day 10 and 15. In the pouch water, Acinetobacter was dominant throughout the storage days in undepurated mussels while Psychrobacter was predominant in both depurated and commercially-depurated mussels. This study demonstrated the impact of depuration on the microbiota and the spoilage mechanism of MA-packaged live mussels. Shewanella was easily removed through depuration. However, spoilage bacteria such as Acidaminococcus could not be easily removed although they are not important at the beginning but grew at the end. Pouch water contributed suitable biological medium for the growth of Acinetobacter and Psychrobacter and both enhanced the growth of spoilage bacteria such as Shewanella and Acidaminococcus.
Publisher: Elsevier BV
Date: 2016
Publisher: Elsevier BV
Date: 06-2022
Publisher: Elsevier BV
Date: 11-2017
DOI: 10.1016/J.JIPH.2016.12.001
Abstract: The results from the first survey on food safety knowledge, attitudes and hygiene practices (KAP) among veterinary medicine students in Bulgaria are reported in this study. It was designed and conducted from September to December 2015 using structured questionnaires on food safety knowledge, attitudes and practices. Data were collected from 100 undergraduate veterinary medicine students from the Trakia University, Bulgaria. It was observed that the age and the gender did not affect food safety knowledge, attitudes and practices. There was no significant difference (p>0.05) on food safety knowledge and practices among students based on the years of study. A high level of food safety knowledge was observed among the participants (85.06%), however, the practice of food safety was above average (65.28%) while attitude toward food safety was high (70%). Although there was a significant awareness of food safety knowledge among respondents, there is a need for improvement on food safety practices, interventions on food safety and foodborne diseases.
Publisher: Elsevier BV
Date: 02-2019
DOI: 10.1016/J.FOODRES.2018.10.030
Abstract: An international survey among consumers in developing countries from Asia and Africa on food safety knowledge, attitudes and practices (KAP) was carried out using structured questionnaires. Data were collected from 453 consumers comprising 265 from Africa and 188 from Asia. Significant difference (p < 0.05) on food safety knowledge attitude and practice between consumers from Africa and Asia was observed. In Africa, consumers in Cameroon had the least food safety knowledge (73.15 ± 16.43) compared to Ghana (78.19 ± 15.84) and Nigeria (88.16 ± 8.88). Similarly, consumers in Iran had the least food safety knowledge (73.33 ± 19.84) in Asia compared to Malaysia (88.36 ± 11.64) and Pakistan (89.42 ± 9.89). Among the respondents, 89% were aware of food poisoning while 304 (67.1%) consume food kept for long at room temperature. There was significant difference (p < 0.05) in food safety knowledge, attitudes and practices of consumers between Africa and Asia. Overall, respondents from Asia have better food safety knowledge than respondents from Africa.
Publisher: Codon Publications
Date: 22-09-2022
Abstract: With the ever-increasing changes and growing scientific output in the field of food safety, it has become imperative to measure, analyze, characterize and compare existing publications quantitatively. The present study aimed to identify and analyze the characteristics of the 100 top-cited studies on food safety. Food safety articles published in the Web of Science Core Collection database between 1950 and 2020 were collected, and bibliometric parameters were assessed. Data analysis was performed using VOSviewer software to visualize linkages and establish relationships between articles, keywords, research areas, authors, countries and institutions, among others, providing insight into the most impactful studies related to food safety. This study highlights that research focused on food safety is growing rapidly globally and cuts across several fields, including biotechnology, microbiology, food processing and preservation, consumer studies, and policy development. There is a dearth of research articles in the areas of chemical contamination of foods by pesticides and other chemical residues and in food fraud detection and prevention studies.
Publisher: Elsevier BV
Date: 02-2017
DOI: 10.1016/J.MICPATH.2017.01.007
Abstract: This study aimed to compare population dynamics, antibiotic resistance and biofilm formation of Aeromonas and Vibrio species from seawater and sediment collected from Northern Malaysia. Isolates with different colony morphology were characterized using both biochemical and molecular methods before testing for antibiotic resistance and biofilm formation. Results obtained from this study showed that in Kedah, the population of Aeromonas isolated from sediment was highest in Pantai Merdeka (8.22 log CFU/ml), Pulau Bunting recorded the highest population of Aeromonas from sediment (8.43 log CFU/g). It was observed that Vibrio species isolated from seawater and sediment were highest in Kuala Sanglang (9.21 log CFU/ml). In Kuala Perlis, the population of Aeromonas isolated from seawater was highest in Jeti (7.94 log CFU/ml). Highest population of Aeromonas from sediment was recorded in K ong Tanah Baru (7.99 log CFU/g). It was observed that Vibrio species isolated from seawater was highest in Padang Benta (8.42 log CFU/g) while Jeti Kuala Perlis had highest population of Vibrio isolated from sediment. It was observed that location does not influence population of Aeromonas. The results of the independent t - test revealed that there was no significant relationship between location and population of Vibrio (df = 10, t = 1.144, p > 0.05). The occurrence of biofilm formation and prevalence of antibiotic resistant Aeromonas and Vibrio species in seawater and sediment pose danger to human and aquatic animals' health.
Publisher: Elsevier BV
Date: 03-2017
Publisher: Elsevier BV
Date: 09-2018
DOI: 10.1016/J.IJFOODMICRO.2017.12.029
Abstract: Seafood comprising of both vertebrate and invertebrate aquatic organisms are nutritious, rich in omega-3 fatty acids, essential vitamins, proteins, minerals and form part of healthy diet. However, despite the health and nutritional benefits, seafood is highly perishable. Spoilage of seafood could be as a result of microbial activity, autolysis or chemical oxidation. Microbial activity constitutes more spoilage than others. Spoilage bacteria are commonly Gram negative and produce off odours and flavours in seafood as a result of their metabolic activities. Storage temperature, handling and packaging conditions affect microbial growth and thus the shelf-life of seafood. Due to the complexity of the microbial communities in seafood, culture dependent methods of detection may not be useful, hence the need for culture independent methods are necessary to understand the ersity of microbiota and spoilage process. Similarly, the volatile organic compounds released by spoilage bacteria are not fully understood in some seafood. This review therefore highlights current knowledge and understanding of seafood spoilage microbiota, volatile organic compounds, effects of storage temperature and packaging conditions on quality of seafood.
Publisher: SNF Swedish Nutrition Foundation
Date: 2016
Publisher: Elsevier BV
Date: 05-2021
Publisher: Universitatea Transilvania Brasov
Date: 06-2021
DOI: 10.31926/BUT.FWIAFE.2021.14.63.1.16
Abstract: This study is aimed at investigating the global trend in research activities involving seafood and antibiotics based on published research output articles. Peer reviewed articles published in the last two decades involving seafood and antibiotics were searched on the Scopus database using the search words “seafood” and “antibiotics’’. The retrieved data were then analyzed based on the total research outputs, countries and affiliation of authors, sources of funding, keywords used by the authors, citations and collaborations using both add-on analytical tool, Microsoft Excel and VOS viewer for data visualization. A total of 447 research outputs by 710 authors affiliated with 1173 institutions from 74 countries using 1051 keywords were obtained. Original research articles accounted for the highest percentage (87.7%) and published across 166 different peer-reviewed journals. Most of the original research articles were published in the International Journal of Food Microbiology 27(16.3%). Khan, A. A. from the Division of Microbiology National Centre for Toxicological Research, United States, was the most productive author with 10 (2.2%) publications while the National Natural Science Foundation of China was the highest funding institution with 22 (4.9%) and the United States of America was the most productive with 91 (20.4%) research outputs followed by China with 70 (15.7%) research outputs. Over the last two decades (1999 – 2019), there has been an exponential (r2=0.91) increase in seafood and antibiotics related research activities. The majority of these research activities were from America, Asia and Europe. There is need for international scientific collaboration between the leading researchers and researchers from developing countries in seafood research to help mitigate food loss, enhance food security, and increase the productivity of early career researchers.
Publisher: Future Science Ltd
Date: 02-2019
Publisher: Elsevier BV
Date: 06-2021
Publisher: Springer Science and Business Media LLC
Date: 09-12-2016
Publisher: Elsevier BV
Date: 11-2021
Publisher: Elsevier BV
Date: 10-2020
Publisher: Elsevier BV
Date: 09-2016
DOI: 10.1016/J.JIPH.2015.10.006
Abstract: Aeromonas hydrophila is a Gram-negative, oxidase-positive, facultative, anaerobic, opportunistic aquatic pathogen. A. hydrophila produces virulence factors, such as hemolysins, aerolysins, adhesins, enterotoxins, phospholipase and lipase. In addition to isolation from aquatic sources, A. hydrophila has been isolated from meat and meat products, milk and dairy products, and vegetables. However, various studies showed that this opportunistic pathogen is resistant to commercial antibiotics. This is attributed to factors such as the indiscriminate use of antibiotics in aquaculture, plasmids or horizontal gene transfer. In this report, we highlight the occurrence, prevalence and antimicrobial resistance of A. hydrophila isolated from different food s les. The presence of antimicrobial-resistant A. hydrophila in food poses threats to public and aquatic animal health.
Publisher: Springer Science and Business Media LLC
Date: 14-04-2016
Publisher: Elsevier BV
Date: 2017
Publisher: Elsevier BV
Date: 12-2021
Publisher: Springer Science and Business Media LLC
Date: 24-09-2015
Publisher: Elsevier BV
Date: 07-2021
Publisher: Future Science Ltd
Date: 12-2016
Publisher: Sciencedomain International
Date: 29-03-2021
DOI: 10.9734/EJNFS/2021/V13I230380
Abstract: As a developing nation and the most populous nation in Africa, Nigeria has faced challenges associated with meeting the food needs of its expanding population over the years. This is due to the nation transitioning from a net exporter of foods to being dependent on food imports, leading to many people suffering from stunting and severe malnourishment. The COVID-19 pandemic has compounded this food insufficiency within the country with its attendant global impacts. The restrictions in the movement of people and goods in the country, due to the current pandemic, have affected access to food and agricultural input, heavily affecting the financial ability of families. This mini-review highlights the impact of COVID-19 on the country's nutritional status, the rising incidence of food insecurity and proposes approaches that can be employed to mitigate these adverse effects. Approaches to improving food security and the nutritional status of the country during the pandemic and post-pandemic era will involve deliberate policies of the government which focuses on increasing funding to local food producers, lifting restrictions on the transport of food commodities, encouraging markets for the retail of locally produced foods and more importantly instituting nutritional intervention programmes for children and the vulnerable within the community.
Publisher: Rynnye Lyan Resources
Date: 07-04-2023
DOI: 10.26656/FR.2017.7(2).998
Abstract: Bivalve molluscs, comprising oysters and mussels, are important seafood products as they represent over 56% of marine and coastal production and account for 12% of the seafood trade with a value of over USD 34 billion dollars. Bivalve molluscs are increasingly popular among consumers because of their high nutritional value and are considered sustainable seafood products as they do not require feed inputs and can make a significant contribution to food security. As filter feeders, bivalve molluscs can accumulate microorganisms, and improper post-harvesting handling and storage procedures could support the growth of spoilage and pathogenic microorganisms, causing spoilage and potential safety issues. At the same time, there is an increasing demand by consumers for fresh and minimally processed foods. Therefore, understanding the microbial ersity of bivalve molluscs and methods to control microbial growth is of increasing research interest. This review highlighted the recent developments in the understanding of the microbial community of bivalve molluscs and the use of innovative technologies for the preservation and shelf-life extension of seafood.
Publisher: Future Science Ltd
Date: 03-2020
Abstract: When I started my doctoral degree a couple of years ago at the University of Tasmania in Australia, my enthusiasm for starting a doctoral degree with a scholarship was very high however, along the way, due to various challenges, I began to ask myself: is acquiring a doctoral degree worth it? In this article, I provide a detailed account of how I started and completed my doctoral study and highlight the inherent lessons I learned.
Publisher: Elsevier BV
Date: 11-2019
DOI: 10.1016/J.MICPATH.2019.103665
Abstract: This study aimed to investigate antibiotic resistance and putative virulence factors among Cronobacter sakazakii isolated from powdered infant formula and other sources. The following 9 cultures (CR1-9) were collected from our culture collection: C. sakazakii and 3 Cronobacter species: C. sakazakii ATCC® 29544™, C. muytjensii ATCC® 51329™, C. turicensis E866 were used in this study. Isolates were subjected to antibiotic susceptibility and the following virulence factors (protease, DNase, haemolysin, gelatinase, motility and biofilm formation) using phenotypic methods. All the bacteria were able to form biofilm on agar at 37 °C and were resistant to icillin, erythromycin, fosfomycin and sulphamethoxazole. It was observed from this study that tested strains formed weak and strong biofilm with violet dry and rough (rdar), brown dry and rough (bdar), red mucoid and smooth (rmas) colony morphotypes on Congo red agar. Rdar expresses curli and fimbriae, while bdar expresses curli. Both biofilm colony morphotypes are commonly found in Enterobacteriaceae including Salmonella species. This study also reveals a new colony morphotypes in Cronobacter species. Conclusively, there was correlation between putative virulence factors and antibiotic resistance among the tested bacteria. Further study on virulence and antibiotic resistance genes is hereby encouraged.
Publisher: Elsevier BV
Date: 03-2022
DOI: 10.1016/J.IJFOODMICRO.2022.109555
Abstract: Atypical enteropathogenic E. coli (aEPEC) strains are emerging pathogens responsible for fatal diarrhoea in humans worldwide. The purpose of this study was to investigate genetic ersity, virulence and antimicrobial resistance profiles of aEPEC O177 strains isolated from faeces of cattle reared in intensive and extensive production systems in South Africa. A total of 96 multidrug resistant (MDR) aEPEC O177 isolates were typed using enterobacterial repetitive intergenic consensus (ERIC) and random lified polymorphism DNA (RAPD) typing. The resistome, virulome and mobilome of two aEPEC O177 isolates were investigated using WGS analysis. The ERIC typing was efficient and reproducible with a discriminatory index of 0.95. RAPD typing had poor reproducibility with satisfactory discriminatory power of 0.859. The dendrograms constructed based on ERIC and RAPD banding patterns produced 9 and 8 clusters, respectively, which indicate genetic variation among E. coli O177 isolates. WGS analysis revealed that CF-154-A and CF-335-B) isolates belonged to the O177 serotype with H7 and H21, respectively. Both isolates harboured several virulome genes such as intimin (eaeA), haemolysin (hlyA and hlyE), translocated iron receptor (tir), Type III secretion system (eprH, gspL and prgH), bssR and bssS. However, genes encoding shiga toxins were not found in either isolate. Antibiotic resistance genes such as C, tet, ermB, sul2, strB AcrD, aph(6)-Ic, aph(6)-Ib, aph(3″)-I, ant (3″)-1a AcrA and acrE were found in the E. coli O177 strains. Furthermore, genome annotation results indicated that both isolates carried plasmids, insertion sequences, prophages and cluster of regularly interspaced short palindromic repeats (CRISPR) type I. Based on in silico multi locus typing (MLST) analysis, the two isolates were assigned to different sequence types (CF-154-A, ST-1308 and CF-335-B, ST-58). Whole genome multi locus typing tree showed that our isolates clustered with E. coli O177:H21 (reference), suggesting the close genomic relatedness among the strains. Overall, these findings showed that cattle carry genetically erse E. coli O177 strains, which harbour a repertoire of virulome, resistome and mobilome genes. This highlights a need for multidrug resistant E. coli O177 strain surveillance in cattle.
No related grants have been discovered for Olumide A. Odeyemi.