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Chen L, Lu T, Yang D, Qin X, Huang L, Xu B, Peng Y, Chen S. Clinical Outcome and Factors with Dietary Behaviors in Pregnant Women with Listeria monocytogenes: A Hospital-Based Case-Control Study in Shanghai. Foodborne Pathog Dis 2024; 21:431-439. [PMID: 38607615 DOI: 10.1089/fpd.2023.0114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2024] Open
Abstract
Listeriosis is a globally rare foodborne disease that causes fetal-placental infection, leading to adverse pregnancy outcome, while limited research among pregnant women is available in China. This study was therefore aimed at analyzing the incidence, clinical manifestations, and clinical outcome of listeriosis among pregnant women and its associated dietary behavior risk factors in prevention. A hospital-based case-control study had been conducted from January 2017 to December 2021. Clinical data, laboratory information, and questionnaires including dietary behaviors and personal hygiene were collected within 2 days after case diagnosis. There were 48 pregnant women, including 12 cases and 36 controls, with an average age of 31.19 ± 3.75 years. The incidence of admission-based listeriosis among pregnant women was 1.6058 per 10,000. The 12 strains were divided into 3 serotypes: 1/2a(83.33%), 1/2b(8.33%), and 4b(8.33%). Among the cases, 5 cases (41.67%) resulted in abortion, 3 cases (25%) induced preterm labor, and 4 cases (33.33%) had full-term deliveries after treatment. There were 7 live births in the case group, among which 6 were admitted to the neonatal intensive care unit (NICU), while 1 case had a healthy fetal outcome. All patients in the control group gave birth to live fetuses. Epidemiological investigation revealed that pregnant women dining at restaurants three or more times per week might increase the risk of having Listeria infection. There were no significant differences in dietary consumed behaviors, hand hygiene, and refrigerator usage behaviors between case and control groups. The study suggested that dining at restaurants might be associated with Listeria infection among pregnant women. Therefore, it is essential to enhance education on listeriosis serious consequences and promote healthy dietary and hygiene habits among pregnant women.
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Affiliation(s)
- Lili Chen
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Tingyan Lu
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Dongjian Yang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Xiaoli Qin
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Lishi Huang
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Biyao Xu
- Department of Food Safety, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Yongan Peng
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
| | - Shufang Chen
- International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China
- Shanghai Key Laboratory of Embryo Original Diseases, Shanghai, 200030, China
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Roy PK, Roy A, Jeon EB, DeWitt CAM, Park JW, Park SY. Comprehensive analysis of predominant pathogenic bacteria and viruses in seafood products. Compr Rev Food Sci Food Saf 2024; 23:e13410. [PMID: 39030812 DOI: 10.1111/1541-4337.13410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Revised: 06/26/2024] [Accepted: 06/29/2024] [Indexed: 07/22/2024]
Abstract
Given the growing global demand for seafood, it is imperative to conduct a comprehensive study on the prevalence and persistence patterns of pathogenic bacteria and viruses associated with specific seafood varieties. This assessment thoroughly examines the safety of seafood products, considering the diverse processing methods employed in the industry. The importance of understanding the behavior of foodborne pathogens, such as Salmonella typhimurium, Vibrio parahaemolyticus, Clostridium botulinum, Listeria monocytogenes, human norovirus, and hepatitis A virus, is emphasized by recent cases of gastroenteritis outbreaks linked to contaminated seafood. This analysis examines outbreaks linked to seafood in the United States and globally, with a particular emphasis on the health concerns posed by pathogenic bacteria and viruses to consumers. Ensuring the safety of seafood is crucial since it directly relates to consumer preferences on sustainability, food safety, provenance, and availability. The review focuses on assessing the frequency, growth, and durability of infections that arise during the processing of seafood. It utilizes next-generation sequencing to identify the bacteria responsible for these illnesses. Additionally, it analyzes methods for preventing and intervening of infections while also considering the forthcoming challenges in ensuring the microbiological safety of seafood products. This evaluation emphasizes the significance of the seafood processing industry in promptly responding to evolving consumer preferences by offering current information on seafood hazards and future consumption patterns. To ensure the continuous safety and sustainable future of seafood products, it is crucial to identify and address possible threats.
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Affiliation(s)
- Pantu Kumar Roy
- Department of Seafood Science and Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong, Republic of Korea
| | - Anamika Roy
- Department of Seafood Science and Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong, Republic of Korea
| | - Eun Bi Jeon
- Department of Seafood Science and Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong, Republic of Korea
| | | | - Jae W Park
- OSU Seafood Lab, Oregon State University, Astoria, Oregon, USA
| | - Shin Young Park
- Department of Seafood Science and Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong, Republic of Korea
- OSU Seafood Lab, Oregon State University, Astoria, Oregon, USA
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Li X, Wang H, Abdelrahman H, Kelly A, Roy L, Wang L. Profiling and source tracking of the microbial populations and resistome present in fish products. Int J Food Microbiol 2024; 413:110591. [PMID: 38306774 DOI: 10.1016/j.ijfoodmicro.2024.110591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 01/08/2024] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
Microorganisms in processing environments significantly impact the quality and safety of food products and can serve as potential reservoirs for antibiotic-resistant genes, contributing to public health concerns about antimicrobial resistance (AMR). Fish processing plants represent an understudied environment for microbiome mapping. This study investigated the microbial composition, prevalence of Listeria spp., and resistome structures in three catfish processing facilities in the southeastern United States. The 16S rRNA gene sequencing revealed that the observed richness and Shannon diversity index increased significantly from fish to fillet. Beta diversity analysis showed distinct clustering of microbial communities between fish, environment, and fillet samples. Fast expectation-maximization microbial source tracking (FEAST) algorithm demonstrated that the microbiota presents in the processing environment contributed 48.2 %, 62.4 %, and 53.7 % to the microbiota present on fillet in Facility 1 (F1), F2, and F3, respectively. Food contact surfaces made larger contributions compared to the non-food contact surfaces. The linear discriminant analysis of effect size (LEfSe) identified specific microbial genera (e.g., Plesiomohas, Brochothrix, Chryseobacterium and Cetobacterium) that significantly varied between Listeria spp. positive and negative samples in all three processing plants. The metagenomic sequencing results identified 212 antimicrobial resistance genes (ARGs) belonging to 72 groups from the raw fish and fish fillet samples collected from three processing plants. Although there was a significant decrease in the overall diversity of ARGs from fish to fillet samples, the total abundance of ARGs did not change significantly (P > 0.05). ARGs associated with resistance to macrolide-lincosamide-streptogramin (MLS), cationic antimicrobial peptides, aminoglycosides, and beta-lactams were found to be enriched in the fillet samples when compared to fish samples. Results of this study highlight the profound impact of processing environment on shaping the microbial populations present on the final fish product and the need for additional strategies to mitigate AMR in fish products.
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Affiliation(s)
- Xiran Li
- Department of Food Science and Technology, University of California Davis, Davis, CA 95616, United States
| | - Hongye Wang
- Department of Food Science and Technology, University of California Davis, Davis, CA 95616, United States
| | - Hisham Abdelrahman
- Alabama Fish Farming Center, Greensboro, AL 36744, United States; School of Fisheries, Aquaculture & Aquatic Sciences, Auburn University, Auburn, AL 3684, United States
| | - Anita Kelly
- Alabama Fish Farming Center, Greensboro, AL 36744, United States; School of Fisheries, Aquaculture & Aquatic Sciences, Auburn University, Auburn, AL 3684, United States
| | - Luke Roy
- Alabama Fish Farming Center, Greensboro, AL 36744, United States; School of Fisheries, Aquaculture & Aquatic Sciences, Auburn University, Auburn, AL 3684, United States
| | - Luxin Wang
- Department of Food Science and Technology, University of California Davis, Davis, CA 95616, United States.
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Gonzales-Barron U, Cadavez V, De Oliveira Mota J, Guillier L, Sanaa M. A Critical Review of Risk Assessment Models for Listeria monocytogenes in Seafood. Foods 2024; 13:716. [PMID: 38472829 PMCID: PMC10930801 DOI: 10.3390/foods13050716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 02/22/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
Invasive listeriosis, due to its severe nature in susceptible populations, has been the focus of many quantitative risk assessment (QRA) models aiming to provide a valuable guide in future risk management efforts. A review of the published QRA models of Listeria monocytogenes in seafood was performed, with the objective of appraising the effectiveness of the control strategies at different points along the food chain. It is worth noting, however, that the outcomes of a QRA model are context-specific, and influenced by the country and target population, the assumptions that are employed, and the model architecture itself. Studies containing QRA models were retrieved through a literature search using properly connected keywords on Scopus and PubMed®. All 13 QRA models that were recovered were of short scope, covering, at most, the period from the end of processing to consumption; the majority (85%) focused on smoked or gravad fish. Since the modelled pathways commenced with the packaged product, none of the QRA models addressed cross-contamination events. Many models agreed that keeping the product's temperature at 4.0-4.5 °C leads to greater reductions in the final risk of listeriosis than reducing the shelf life by one week and that the effectiveness of both measures can be surpassed by reducing the initial occurrence of L. monocytogenes in the product (at the end of processing). It is, therefore, necessary that future QRA models for RTE seafood contain a processing module that can provide insight into intervention strategies that can retard L. monocytogenes' growth, such as the use of bacteriocins, ad hoc starter cultures and/or organic acids, and other strategies seeking to reduce cross-contamination at the facilities, such as stringent controls for sanitation procedures. Since risk estimates were shown to be moderately driven by growth kinetic parameters, namely, the exponential growth rate, the minimum temperature for growth, and the maximum population density, further work is needed to reduce uncertainties.
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Affiliation(s)
- Ursula Gonzales-Barron
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal;
- Laboratório para a Sustentabilidade e Tecnologia em Regiões de Montanha, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Vasco Cadavez
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal;
- Laboratório para a Sustentabilidade e Tecnologia em Regiões de Montanha, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Juliana De Oliveira Mota
- Department of Nutrition and Food Safety, World Health Organization (WHO), CH-1211 Geneva, Switzerland
| | - Laurent Guillier
- Risk Assessment Department, French Agency for Food, Environmental and Occupational Health & Safety (Anses), 14 Rue Pierre et Marie Curie, 94701 Maisons-Alfort, France;
| | - Moez Sanaa
- Department of Nutrition and Food Safety, World Health Organization (WHO), CH-1211 Geneva, Switzerland
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Zakrzewski AJ, Gajewska J, Chajęcka-Wierzchowska W, Załuski D, Zadernowska A. Prevalence of Listeria monocytogenes and other Listeria species in fish, fish products and fish processing environment: A systematic review and meta-analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:167912. [PMID: 37866612 DOI: 10.1016/j.scitotenv.2023.167912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 10/15/2023] [Accepted: 10/16/2023] [Indexed: 10/24/2023]
Abstract
Fish and seafood products are one of the most common causes of listeriosis in humans. A systematic review and meta-analysis were conducted using scientific literature to summarize available data on the prevalence of Listeria monocytogenes and Listeria sp. in fish, fish products and fish processing environment. Meta-analysis models were used to estimate the mean prevalence of the pathogen and to compare prevalence among the most popular fishes. Data from a total of 14,496 samples were analysed. Pooled prevalence of L. monocytogenes and Listeria sp. in raw fish was 5.8 % (95 % CI: 4.7-6.9) and 12.2 % (95 % CI: 8.9-15.5) respectively. Significantly higher results were observed for ready-to-eat products, occurrence of L. monocytogenes and Listeria sp. was 14.5 % (95 % CI: 11.1-18.0) and 21.7 % (95 % CI: 11.8-31.6) respectively. Moreover, meta-regression was performed to investigate changes in L. monocytogenes and Listeria sp. occurrence over the years and it shows a downward trend for both raw fish and RTE products. The results of the present study provide useful epidemiological information about the contamination level and distribution of Listeria sp. and L. monocytogenes among raw fish, fish products and fish processing environment.
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Affiliation(s)
- Arkadiusz Józef Zakrzewski
- Department of Industrial and Food Microbiology, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland.
| | - Joanna Gajewska
- Department of Industrial and Food Microbiology, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
| | - Wioleta Chajęcka-Wierzchowska
- Department of Industrial and Food Microbiology, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
| | - Dariusz Załuski
- Department of Genetics, Plant Breeding and Bioresource Engineering, University of Warmia and Mazury, ul. Oczapowskiego 8, 10-719 Olsztyn, Poland
| | - Anna Zadernowska
- Department of Industrial and Food Microbiology, University of Warmia and Mazury, Plac Cieszyński 1, 10-726 Olsztyn, Poland
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Nguyen Trang P, Thi Anh Ngoc T, Masuda Y, Hohjoh KI, Miyamoto T. Biofilm Formation From Listeria monocytogenes Isolated From Pangasius Fish-processing Plants. J Food Prot 2023; 86:100044. [PMID: 36916551 DOI: 10.1016/j.jfp.2023.100044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 01/02/2023] [Accepted: 01/16/2023] [Indexed: 01/24/2023]
Abstract
Biofilm formation of Listeria monocytogenes in food processing environments cause potential source of cross-contamination to foodstuffs; hence, the control of biofilm is currently addressed to find effective solutions for preventing biofilm formation or eliminating the established one. Forty-five strains of Listeria monocytogenes isolated from Pangasius fish-processing plants were studied for their capability to form a biofilm on 96-well microtiter plate by using the conventional crystal violet staining. Additionally, the inhibitory effect of biofilm formation by food additives including monascus pigment and ε-polylysine was examined. The average OD value showing biofilm mass of all 45 strains L. monocytogenes increased with an increasing temperature and time (p < 0.05). Monascus pigment and ε-polylysine significantly decreased biofilm formation by 80 ± 5.5% and 20 ± 5.9%, respectively, at the tested concentration (p < 0.05) Further, the effects of lysozyme (0.1 mg/mL) alone or in combination with slightly acidic hypochlorous water (SAHW) with 40 mg/L available chlorine or sodium hypochlorite (NaOCl) with 100 mg/L available chlorine against 7-d established biofilm of L. monocytogenes were investigated. The results indicated that slightly acidic hypochlorous water alone exhibited significant antibacterial activity (p < 0.05), decreasing the viable count by 5.2 ± 0.5 log CFU/mL. It seems that sequential treatment of lysozyme and SAHW showed an additional efficacy against biofilm of L. monocytogenes on polystyrene plate surface, reducing 70% of biomass of biofilm and 7.6 ± 0.3 log of biofilm viable cells (p < 0.05). Additionally, SAHW exhibited greater bactericidal activity against viable biofilm cells than NaOCl did. This result reveals that SAHW is a promising disinfectant agent against L. monocytogenes and the potential alternative to NaOCl in practice.
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Affiliation(s)
- Phan Nguyen Trang
- Division of Food Science and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan; Department of Food Technology, College of Agriculture, Can Tho University, Campus II, 3/2 Street, Ninh Kieu District, Can Tho, Viet Nam
| | - Tong Thi Anh Ngoc
- Department of Food Technology, College of Agriculture, Can Tho University, Campus II, 3/2 Street, Ninh Kieu District, Can Tho, Viet Nam
| | - Yoshimitsu Masuda
- Division of Food Science and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Ken-Ichi Hohjoh
- Division of Food Science and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takahisa Miyamoto
- Division of Food Science and Biotechnology, Faculty of Agriculture, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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da Silva Dias N, de Melo Tavares R, da Cunha Neto A, de Souza Figueiredo EE, Camargo AC, Tavares Carvalho RC, Nero LA. Listeria monocytogenes and Pseudomonas spp. Distribution in a Processing Facility of Spotted Sorubim (Pseudoplatystoma corruscans) in Brazil. J Food Prot 2022; 85:1640-1645. [PMID: 36099545 DOI: 10.4315/jfp-22-171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 09/12/2022] [Indexed: 11/11/2022]
Abstract
ABSTRACT The ecology of Listeria monocytogenes and Pseudomonas spp. during the slaughtering of spotted sorubim (Pseudoplatystoma corruscans) in a fish processing facility was assessed. Fish samples (n = 28) were obtained in different points of slaughtering (A, arrival; B, washing; C, gutting; and D, cooling) and subjected to detection of L. monocytogenes and enumeration of Pseudomonas spp. High frequencies of Listeria spp. (17 of 28 to 22 of 28) and L. monocytogenes (6 of 28 to 9 of 28) were identified in all slaughtering points but were not significantly different (P ≥ 0.05). All L. monocytogenes isolates (n = 33) were identified as belonging to serogroup IVb (serotype 4b) and subjected to macrorestriction with ApaI and AscI. The results indicated a continuous entry of L. monocytogenes in the facility, as well as a temporary persistence of a specific pulsotype. Pseudomonas spp. counts significantly decreased between points A and D (P < 0.05), but the mean counts in the end products (D) remained higher than 3 log CFU/g, suggesting the potential for fast spoilage. The obtained results show that L. monocytogenes and Pseudomonas spp. are widely distributed during spotted sorubim slaughtering, indicating the need for proper hygienic procedures to control these bacteria in the processing facility. HIGHLIGHTS
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Affiliation(s)
| | - Rafaela de Melo Tavares
- Laboratório de Inspeção de Produtos de Origem Animal, Departamento de Veterinária, Mato Grosso 78060-900, Brazil
| | | | | | - Anderson Carlos Camargo
- Laboratório de Inspeção de Produtos de Origem Animal, Departamento de Veterinária, Mato Grosso 78060-900, Brazil.,Departamento de Tecnologia de Alimentos, Universidade Federal de Viçosa, Viçosa 36570-900, Minas Gerais, Brazil
| | | | - Luís Augusto Nero
- Laboratório de Inspeção de Produtos de Origem Animal, Departamento de Veterinária, Mato Grosso 78060-900, Brazil
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Microbial Indicators and Possible Focal Points of Contamination during Production and Processing of Catfish. Foods 2022; 11:foods11182778. [PMID: 36140905 PMCID: PMC9497987 DOI: 10.3390/foods11182778] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/03/2022] [Accepted: 09/05/2022] [Indexed: 12/04/2022] Open
Abstract
The catfish industry is important to the United States economy. The present study determined the levels of microbial indicators and the prevalence of Listeria spp. and Listeria monocytogenes at catfish farms and catfish processing plants. Live fish, water, and sediment samples were analyzed in farms. Fish skin, fillets, chiller water, and environmental surfaces were assessed at the processing plants both during operation and after sanitation. Live fish had 2% prevalence of Listeria monocytogenes, while sediment and water were negative for Listeria. Live fish skin counts averaged 4.2, 1.9, and 1.3 log CFU/cm2 aerobic (APC), total coliform (TCC) and generic Escherichia coli counts, respectively. Water and sediment samples averaged 4.8 and 5.8 log CFU/g APC, 1.9 and 2.3 log CFU/g TCC, and 1.0 and 1.6 log CFU/g generic E. coli counts, respectively. During operation, Listeria prevalence was higher in fillets before (57%) and after (97%) chilling than on fish skin (10%). Process chiller water had higher (p ≤ 0.05) APC, TCC, and Listeria prevalence than clean chiller water. After sanitation, most sampling points in which Listeria spp. were present had high levels of APC (>2.4 log CFU/100 cm2). APC combined with Listeria spp. could be a good approach to understand microbial contamination in catfish plants.
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Phan TN, Miyamoto T, Thi ANT. Microbiological assessment of Pangasianodon hypophthalmus at fish-processing plants in Vietnam. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2022. [DOI: 10.3136/fstr.fstr-d-21-00227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Trang Nguyen Phan
- Division of Food Science and Biotechnology, Faculty of Agriculture, Kyushu University
| | - Takahisa Miyamoto
- Division of Food Science and Biotechnology, Faculty of Agriculture, Kyushu University
| | - Anh Ngoc Tong Thi
- Department of Food Technology, College of Agriculture, Can Tho University
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Phan TN, Miyamoto T, Masuda Y, Hohjoh KI, Thi ANT. Occurrence, antimicrobial resistance, and genetic diversity of Listeria monocytogenes at fish-processing plants in Vietnam. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2022. [DOI: 10.3136/fstr.fstr-d-21-00195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Trang Nguyen Phan
- Division of Food Science and Biotechnology, Faculty of Agriculture, Kyushu University
| | - Takahisa Miyamoto
- Division of Food Science and Biotechnology, Faculty of Agriculture, Kyushu University
| | - Yoshimitsu Masuda
- Division of Food Science and Biotechnology, Faculty of Agriculture, Kyushu University
| | - Ken-ichi Hohjoh
- Division of Food Science and Biotechnology, Faculty of Agriculture, Kyushu University
| | - Anh Ngoc Tong Thi
- Department of Food Technology, College of Agriculture, Can Tho University
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A Study on Phyto-Chemical Analysis and Antibacterial Activity of Spices on Pathogenic Bacteria Isolated from Commercially Important Edible Marine Fishes, Euthynnus Affinis (Cantor), Katsuwonus Pelamis L. and Auxis Thazard (Lacepede) (Family Scombridae). TRANSYLVANIAN REVIEW OF SYSTEMATICAL AND ECOLOGICAL RESEARCH 2021. [DOI: 10.2478/trser-2021-0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Ten bacterial species were isolated and monthly variations in their count were recorded from three edible tuna fishes. Phytochemical analysis and antibacterial activity of hexane, chloroform, methanol, and distilled water extracts of twelve common spices, against the isolated bacteria were evaluated. The study indicates that these pathogenic bacteria in all three tuna fish species cause various human health problems upon consumption.
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Le Anh Dao N, Phu TM, Douny C, Quetin-Leclercq J, Hue BTB, Bach LT, Quynh Nhu T, Thi Bich Hang B, Thi Thanh Huong D, Thanh Phuong N, Kestemont P, Scippo ML. Effects of Phyllanthus amarus and Euphorbia hirta Dip Treatments on the Protection of Striped Catfish (Pangasianodon hypophthalmus) Fillets against Spoilage during Ice Storage. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2021. [DOI: 10.1080/10498850.2021.1987606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Nguyen Le Anh Dao
- College of Aquaculture and Fisheries, Can Tho University, Can Tho City, Vietnam
- FARAH – Veterinary Public Health, Laboratory of Food Analysis, University of Liège, Liege, Belgium
| | - Tran Minh Phu
- College of Aquaculture and Fisheries, Can Tho University, Can Tho City, Vietnam
| | - Caroline Douny
- FARAH – Veterinary Public Health, Laboratory of Food Analysis, University of Liège, Liege, Belgium
| | - Joëlle Quetin-Leclercq
- Louvain Drug Research Institute, Pharmacognosy Research Group, Université Catholique de Louvain, Brussels, Belgium
| | - Bui Thi Buu Hue
- College of Natural Sciences, Can Tho University, Can Tho City, Vietnam
| | - Le Thi Bach
- College of Natural Sciences, Can Tho University, Can Tho City, Vietnam
| | - Truong Quynh Nhu
- College of Aquaculture and Fisheries, Can Tho University, Can Tho City, Vietnam
| | - Bui Thi Bich Hang
- College of Aquaculture and Fisheries, Can Tho University, Can Tho City, Vietnam
| | - Do Thi Thanh Huong
- College of Aquaculture and Fisheries, Can Tho University, Can Tho City, Vietnam
| | - Nguyen Thanh Phuong
- College of Aquaculture and Fisheries, Can Tho University, Can Tho City, Vietnam
| | - Patrick Kestemont
- Research Unit in Environmental and Evolutionary Biology, Research Institute of Life, Earth & Environment (ILEE), University of Namur, Namur, Belgium
| | - Marie-Louise Scippo
- FARAH – Veterinary Public Health, Laboratory of Food Analysis, University of Liège, Liege, Belgium
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13
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Real-time PCR identification of Listeria monocytogenes serotype 4c using primers for novel target genes obtained by comparative genomic analysis. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110774] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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14
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Li F, Ye Q, Chen M, Xiang X, Zhang J, Pang R, Xue L, Wang J, Gu Q, Lei T, Wei X, Ding Y, Wu Q. Cas12aFDet: A CRISPR/Cas12a-based fluorescence platform for sensitive and specific detection of Listeria monocytogenes serotype 4c. Anal Chim Acta 2021; 1151:338248. [PMID: 33608071 DOI: 10.1016/j.aca.2021.338248] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/12/2021] [Accepted: 01/19/2021] [Indexed: 12/26/2022]
Abstract
The CRISPR/Cas12a system has displayed remarkable potential in the development of new methods for nucleic acid detection owing to the trans-cleavage activity of Cas12a. Despite the tremendous development in recent years, existing CRISPR/Cas12a-based methods have several limitations such as the time-consuming process, which takes up to 2 h, and the risk of aerosol contamination during DNA amplicon transfer. Herein, we propose a CRISPR/Cas12a-based fluorescence detection platform named "Cas12aFDet" for rapid nucleic acid detection that overcomes these limitations. By integrating PCR or recombinase-aided amplification (RAA) methods with Cas12a-mediated cleavage in a sealed reaction tube, Cas12aFDet-based detection of amplified products could be accomplished within 15 min, while avoiding amplicon contamination. The detection limits of PCR-based Cas12aFDet and RAA-based Cas12aFDet were determined to be 3.37 × 101 cfu/mL and 1.35 × 102 cfu/mL of Listeria monocytogenes serotype 4c in pure culture, respectively. Most importantly, RAA-based Cas12aFDet exhibited 0.64 aM sensitivity for DNA detection, and showed high specificity for detection of other serotypes of Listeria and non-Listeria strains. Furthermore, the feasibility of the RAA-based Cas12aFDet method was evaluated in spiked and natural samples, enabling the quantitative detection of 1.35 × 108-1.35 × 103 cfu/g fresh grass carp of the target L. monocytogenes serotype 4c, and the results obtained for 22 natural aquatic samples were highly consistent with those of the culture-based serotyping method. The established Cas12aFDet platform is expected to provide a new paradigm for the sensitive and specific detection of pathogens in food safety and clinical diagnosis.
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Affiliation(s)
- Fan Li
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China; School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
| | - Qinghua Ye
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Xinran Xiang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Jumei Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Rui Pang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Liang Xue
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Juan Wang
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Qihui Gu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Tao Lei
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Xianhu Wei
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yu Ding
- Department of Food Science and Technology, Jinan University, Guangzhou, China.
| | - Qingping Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China.
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15
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Keet R, Rip D. Listeria monocytogenes isolates from Western Cape, South Africa exhibit resistance to multiple antibiotics and contradicts certain global resistance patterns. AIMS Microbiol 2021; 7:40-58. [PMID: 33659768 PMCID: PMC7921373 DOI: 10.3934/microbiol.2021004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/04/2021] [Indexed: 01/21/2023] Open
Abstract
Food-borne disease outbreaks are common and offer valuable insights into the causes, impacts, and mechanisms underlying food pathogens. This also serves as a good foundation to validate the performance of current best practice control methods, for example antibiotics, that are used in the fight against food pathogens. Listeriosis outbreaks, caused by Listeria monocytogenes, is no exception. In 2018, South Africa experienced the largest global listeriosis outbreak recorded to date. However, despite the scale of this outbreak, information on the bacterium and its resistance towards antibiotics is still severely lacking. Furthermore, until now it remained to be determined whether L. monocytogenes antibiotic resistance patterns in South Africa mirror resistance patterns elsewhere in the world. The aim of this study was therefore to evaluate the efficacy of antibiotics that are currently used against L. monocytogenes. Using the European Committee on Antimicrobial Susceptibility Testing (EUCAST) disc diffusion method, L. monocytogenes isolates (n = 177) from diverse origins in the Western Cape, South Africa (clinical, food, and environment) were tested for susceptibility against five different antibiotics, namely ampicillin, erythromycin, chloramphenicol, gentamicin, and tetracycline. Isolates were collected over a period of two years (2017-2019). All isolates were susceptible to ampicillin, the currently recommended antibiotic, while a large number of isolates were resistant to chloramphenicol, erythromycin, and tetracycline. Also, patterns of resistance observed here are different to patterns observed elsewhere. The findings of this study demonstrate that it is imperative to continuously monitor the efficacy of currently recommended antibiotics, since resistance patterns can quickly develop when such antibiotics are overutilized, and secondly, that it is crucial to assess local antibiotic resistance patterns in conjunction with global patterns, since the latter is not necessarily generalizable to local scales.
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Affiliation(s)
| | - Diane Rip
- Department of Food Science, Centre for Food Safety, Stellenbosch University, South Africa
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16
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Li F, Ye Q, Chen M, Zhou B, Xiang X, Wang C, Shang Y, Zhang J, Pang R, Wang J, Xue L, Cai S, Ding Y, Wu Q. Mining of novel target genes through pan-genome analysis for multiplex PCR differentiation of the major Listeria monocytogenes serotypes. Int J Food Microbiol 2020; 339:109026. [PMID: 33360877 DOI: 10.1016/j.ijfoodmicro.2020.109026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 02/08/2023]
Abstract
The abundant information provided by the pan-genome analysis approach reveals the diversity among Listeria monocytogenes serotypes. The objective of this study was to mine novel target genes using pan-genome analysis for multiplex PCR detection and differentiation of the major L. monocytogenes serotypes present in food. Pan-genome analysis and PCR validation revealed a total of 10 specific targets: one for lineage I, two for serogroup I.1, one for serogroup I.2, two for lineage II, one for serogroup II.1, three for lineage III. Primers for the novel targets were highly specific in individual reactions. The detection limits were 103-104 colony-forming units (CFU)/mL in pure bacterial cultures, meeting the requirements of molecular detection. Based on these novel targets, two new "lineage" multiplex PCR assays were developed to simultaneously distinguish between three lineages (I, II, and III) and five major serotypes (1/2a, 1/2b, 1/2c, 4b, and 4c) of L. monocytogenes. The detection limits of lineage I and lineage II&III mPCRs were 0.771 pg/μL and 1.76 pg/μL genomic DNA, respectively. The specificity of the mPCRs was robustly verified using other L. monocytogenes and non-L. monocytogenes serotypes. These results suggest that the two "lineage" multiplex PCRs based on novel targets offer a promising approach for accurate, sensitive, and rapid identification of L. monocytogenes serotypes.
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Affiliation(s)
- Fan Li
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China; Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qinghua Ye
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Baoqing Zhou
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Xinran Xiang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Chufang Wang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yuting Shang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Jumei Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Rui Pang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Juan Wang
- College of Food Science, South China Agricultural University, Guangzhou, China
| | - Liang Xue
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Shuzhen Cai
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yu Ding
- Department of Food Science and Technology, Jinan University, Guangzhou, China.
| | - Qingping Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Guangdong Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China.
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17
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Sheng L, Wang L. The microbial safety of fish and fish products: Recent advances in understanding its significance, contamination sources, and control strategies. Compr Rev Food Sci Food Saf 2020; 20:738-786. [PMID: 33325100 DOI: 10.1111/1541-4337.12671] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/22/2020] [Accepted: 10/12/2020] [Indexed: 12/18/2022]
Abstract
Microorganisms play a crucial and unique role in fish and fish product safety. The presence of human pathogens and the formation of histamine caused by spoilage bacteria make the control of both pathogenic and spoilage microorganisms critical for fish product safety. To provide a comprehensive and updated overview of the involvement of microorganisms in fish and fish product safety, this paper reviewed outbreak and recall surveillance data obtained from government agencies from 1998 to 2018 and identified major safety concerns associated with both domestic and imported fish products. The review also summarized all available literature about the prevalence of major and emerging microbial safety concerns, including Salmonella spp., Listeria monocytogenes, and Aeromonas hydrophila, in different fish and fish products and the survival of these pathogens under different storage conditions. The prevalence of antibiotic-resistant bacteria (ARB) and antibiotic-resistant genes (ARGs), two emerging food safety concerns, is also reviewed. Pathogenic and spoilage microorganisms as well as ARB and ARGs can be introduced into fish and fish products in both preharvest and postharvest stages. Many novel intervention strategies have been proposed and tested for the control of different microorganisms on fish and fish products. One key question that needs to be considered when developing and implementing novel control measures is how to ensure that the measures are cost and environment friendly as well as sustainable. Over the years, regulations have been established to provide guidance documents for good farming and processing practices. To be more prepared for the globalization of the food chain, harmonization of regulations is still needed.
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Affiliation(s)
- Lina Sheng
- Department of Food Science and Technology, University of California, Davis, Davis, California, USA
| | - Luxin Wang
- Department of Food Science and Technology, University of California, Davis, Davis, California, USA
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18
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Besednova NN, Andryukov BG, Zaporozhets TS, Kryzhanovsky SP, Kuznetsova TA, Fedyanina LN, Makarenkova ID, Zvyagintseva TN. Algae Polyphenolic Compounds and Modern Antibacterial Strategies: Current Achievements and Immediate Prospects. Biomedicines 2020; 8:E342. [PMID: 32932759 PMCID: PMC7554682 DOI: 10.3390/biomedicines8090342] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/03/2020] [Accepted: 09/07/2020] [Indexed: 12/26/2022] Open
Abstract
The increasing drug resistance of pathogenic microorganisms raises concern worldwide and necessitates the search for new natural compounds with antibacterial properties. Marine algae are considered a natural and attractive biotechnological source of novel antibiotics. The high antimicrobial activity of their polyphenolic compounds is a promising basis for designing innovative pharmaceuticals. They can become both a serious alternative to traditional antimicrobial agents and an effective supplement to antibiotic therapy. The present review summarizes the results of numerous studies on polyphenols from algae and the range of biological activities that determine their biomedical significance. The main focus is put on a group of the polyphenolic metabolites referred to as phlorotannins and, particularly, on their structural diversity and mechanisms of antimicrobial effects. Brown algae are an almost inexhaustible resource with a high biotechnological potential for obtaining these polyfunctional compounds. An opinion is expressed that the effectiveness of the antibacterial activity of phlorotannins depends on the methods of their extraction aimed at preserving the phenolic structure. The use of modern analytical tools opens up a broad range of opportunities for studying the metabolic pathways of phlorotannins and identifying their structural and functional relationships. The high antimicrobial activity of phlorotannins against both Gram-positive and Gram-negative bacteria provides a promising framework for creating novel drugs to be used in the treatment and prevention of infectious diseases.
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Affiliation(s)
- Natalya N. Besednova
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russia; (B.G.A.); (T.S.Z.); (T.A.K.); (I.D.M.)
| | - Boris G. Andryukov
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russia; (B.G.A.); (T.S.Z.); (T.A.K.); (I.D.M.)
- School of Biomedicine, Far Eastern Federal University (FEFU), 690091 Vladivostok, Russia;
| | - Tatyana S. Zaporozhets
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russia; (B.G.A.); (T.S.Z.); (T.A.K.); (I.D.M.)
| | - Sergey P. Kryzhanovsky
- Medical Association of the Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia;
| | - Tatyana A. Kuznetsova
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russia; (B.G.A.); (T.S.Z.); (T.A.K.); (I.D.M.)
| | - Ludmila N. Fedyanina
- School of Biomedicine, Far Eastern Federal University (FEFU), 690091 Vladivostok, Russia;
| | - Ilona D. Makarenkova
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russia; (B.G.A.); (T.S.Z.); (T.A.K.); (I.D.M.)
| | - Tatyana N. Zvyagintseva
- Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 690022 Vladivostok, Russia;
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19
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Sharma A, Lee S, Park YS. Molecular typing tools for identifying and characterizing lactic acid bacteria: a review. Food Sci Biotechnol 2020; 29:1301-1318. [PMID: 32995049 PMCID: PMC7492335 DOI: 10.1007/s10068-020-00802-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 02/08/2023] Open
Abstract
Identification and classification of beneficial microbes is of the highest significance in food science and related industries. Conventional phenotypic approaches pose many challenges, and they may misidentify a target, limiting their use. Genotyping tools show comparatively better prospects, and they are widely used for distinguishing microorganisms. The techniques already employed in genotyping of lactic acid bacteria (LAB) are slightly different from one another, and each tool has its own advantages and disadvantages. This review paper compiles the comprehensive details of several fingerprinting tools that have been used for identifying and characterizing LAB at the species, sub-species, and strain levels. Notably, most of these approaches are based on restriction digestion, amplification using polymerase chain reaction, and sequencing. Nowadays, DNA sequencing technologies have made considerable progress in terms of cost, throughput, and methodology. A research journey to develop improved versions of generally applicable and economically viable tools for fingerprinting analysis is ongoing globally.
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Affiliation(s)
- Anshul Sharma
- Department of Food and Nutrition, Gachon University, Seongnam, 13120 Republic of Korea.,Faculty of Applied Sciences and Biotechnology, Shoolini University of Biotechnology and Management Sciences, Bajhol, Solan, Himachal Pradesh 173229 India
| | - Sulhee Lee
- Research Group of Healthcare, Korea Food Research Institute, Wanju, 55365 Republic of Korea
| | - Young-Seo Park
- Department of Food Science and Biotechnology, Gachon University, Seongnam, 13120 Republic of Korea
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20
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Estrada EM, Hamilton AM, Sullivan GB, Wiedmann M, Critzer FJ, Strawn LK. Prevalence, Persistence, and Diversity of Listeria monocytogenes and Listeria Species in Produce Packinghouses in Three U.S. States. J Food Prot 2020; 83:277-286. [PMID: 31961227 DOI: 10.4315/0362-028x.jfp-19-411] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 10/15/2019] [Indexed: 11/11/2022]
Abstract
ABSTRACT Listeria monocytogenes has emerged as a food safety concern for several produce commodities. Although L. monocytogenes contamination can occur throughout the supply chain, contamination from the packinghouse environment represents a particular challenge and has been linked to outbreaks and recalls. This study aimed to investigate the prevalence, persistence, and diversity of L. monocytogenes and other species of Listeria in produce packinghouses. A longitudinal study was performed in 11 packinghouses (whose commodities included microgreen, peach, apple, tomato, broccoli, cauliflower, and cucumber) in three U.S. states. In each packinghouse, 34 to 47 sites representing zones 2 to 4 were selected and swabbed. Packinghouses were visited four times over the packing season, and samples were tested for Listeria by following the U.S. Food and Drug Administration's Bacteriological Analytical Manual methods. Presumptive Listeria-positive isolates were confirmed by PCR. Species and allelic type (AT) were identified by sigB sequencing for up to eight isolates per sample. Among 1,588 samples tested, 50 (3.2%), 42 (2.7%), and 10 (0.6%) samples were positive for L. monocytogenes only, Listeria spp. (excluding L. monocytogenes) only, and both L. monocytogenes and Listeria spp., respectively. Five species of Listeria (L. monocytogenes, L. innocua, L. seeligeri, L. welshimeri, and L. marthii) were identified, and L. monocytogenes was the most prevalent species. The 102 Listeria-positive samples yielded 128 representative isolates (i.e., defined as isolates from a given sample with a different AT). Approximately 21% (21 of 102) of the Listeria-positive samples contained two or more ATs. A high AT diversity (0.95 Simpson's diversity index) was observed among Listeria isolates. There were three cases of L. monocytogenes or Listeria spp. repeated isolation (site testing positive at least twice) based on AT data. Data from this study also support the importance of drain and moisture management, because Listeria were most prevalent in samples collected from drain, cold storage, and wet nonfood contact surface sites. HIGHLIGHTS
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Affiliation(s)
- Erika M Estrada
- Department of Food Science and Technology, Eastern Shore Agricultural Research and Extension Center, Virginia Tech, Painter, Virginia 23420
| | - Alexis M Hamilton
- Department of Food Science, University of Tennessee, Knoxville, Tennessee 37996
| | | | - Martin Wiedmann
- Department of Food Science, Cornell University, Ithaca, New York 14853, USA
| | - Faith J Critzer
- Department of Food Science, University of Tennessee, Knoxville, Tennessee 37996
| | - Laura K Strawn
- Department of Food Science and Technology, Eastern Shore Agricultural Research and Extension Center, Virginia Tech, Painter, Virginia 23420
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21
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Basha KA, Kumar NR, Das V, Reshmi K, Rao BM, Lalitha KV, Joseph TC. Prevalence, molecular characterization, genetic heterogeneity and antimicrobial resistance of Listeria monocytogenes associated with fish and fishery environment in Kerala, India. Lett Appl Microbiol 2019; 69:286-293. [PMID: 31392736 DOI: 10.1111/lam.13205] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 11/29/2022]
Abstract
The prevalence of Listeria monocytogenes in the retail fish markets of the Kerala, India was investigated by screening 227 samples comprising of marine finfish (n = 97) shellfish (n = 19), ready-to-cook fish products (n = 47), ready-to-eat fish products (n = 10), dried fish (n = 11) and retail ice (n = 43). The prevalence of L. monocytogenes and L. innocua was 2·7% and 17·2% respectively. Sample category wise, prevalence of L. monocytogenes was higher in marine finfish (1·8%) and retail ice (0·9%). All the L. monocytogenes isolates carried virulent genes namely inlA, inlC, inlJ, hlyA, iap, plcA, prfA genes and majority (82%) belonged to 1/2a, 3a serogroups. L. monocytogenes isolates were multidrug-resistant and showed resistance to ampicillin, penicillin, erythromycin, tetracycline and clindamycin. Enterobacterial repetitive intergenic consensus-polymerase chain reaction (ERIC-PCR) delineated 58% genetic heterogeneity among the L. monocytogenes strains. The study reports that genetic similarities of the isolates were interlinked to their serogroup and sample origin. SIGNIFICANCE AND IMPACT OF THE STUDY: Prevalence of Listeria monocytogenes, in the retail fish markets of Kerala, India was low but their relatively higher presence in marine finfish and retail ice and virulent nature of the isolates signifies food safety concerns. Moreover, multidrug-resistant nature of these isolates may potentially lead to spread of antimicrobial resistance. This study identified retail ice as a vehicle for entry of L. monocytogenes in retail fish and hence, there is a need to ensure quality of retail ice used for maintaining the cold-chain.
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Affiliation(s)
- K A Basha
- ICAR-Central Institute of Fisheries Technology, Visakhapatnam Research Centre, Visakhapatnam, Andhra Pradesh, India
| | - N R Kumar
- ICAR-Central Institute of Fisheries Technology, Willingdon Island, Kochi, Kerala, India
| | - V Das
- ICAR-Central Institute of Fisheries Technology, Willingdon Island, Kochi, Kerala, India
| | - K Reshmi
- ICAR-Central Institute of Fisheries Technology, Willingdon Island, Kochi, Kerala, India
| | - B M Rao
- ICAR-Central Institute of Fisheries Technology, Visakhapatnam Research Centre, Visakhapatnam, Andhra Pradesh, India
| | - K V Lalitha
- ICAR-Central Institute of Fisheries Technology, Saparya, Cochin, India
| | - T C Joseph
- ICAR-Central Institute of Fisheries Technology, Veraval Research Centre, Veraval, Gujarat, India
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22
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Xu D, Deng Y, Fan R, Shi L, Bai J, Yan H. Coresistance to Benzalkonium Chloride Disinfectant and Heavy Metal Ions in Listeria monocytogenes and Listeria innocua Swine Isolates from China. Foodborne Pathog Dis 2019; 16:696-703. [PMID: 31120347 DOI: 10.1089/fpd.2018.2608] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The development of coresistance to disinfectants and heavy metals contributes to the fitness of Listeria spp. in foods or food processing environments, where life-threatening Listeria monocytogenes coexist and coevolve with other Listeria spp. Despite extensive research on L. monocytogenes, coresistance to disinfectants and heavy metals is less documented for other Listeria spp. In this study, we screened 30 L. monocytogenes and 27 Listeria innocua isolates recovered from 273 swine samples for resistance to quaternary ammonium compound benzalkonium chloride (BC) and to heavy metals cadmium (Cd) and arsenic (As). Moreover, we evaluated the potential mechanisms of resistance by detecting the efflux pump activity in BC resistance and the presence of resistance determinants. The average minimum inhibitory concentrations of BC in L. innocua (10.7 ± 2.0) were significantly higher than that in L. monocytogenes (6.9 ± 3.7) (p < 0.05). Resistance to BC and heavy metals was correlated, where all BC-resistant L. innocua and As-resistant L. monocytogenes isolates were coresistant to BC and Cd. Twenty percent and 66.7% of BC resistance in L. monocytogenes and L. innocua were related to reserpine-associated efflux pumps, whereas all cases of BC resistance were related to carbonyl cyanide 3-chlorophenylhydrazone-associated efflux pumps. The cadA1 and cadA2 genes were present in Cd-resistant isolates but not in Cd-sensitive isolates, and cadA3 was undetectable in all isolates examined. cadA4 conferring lower level of Cd resistance was copresent with arsA1 and arsA2 in the Cd-resistant and As-susceptible L. monocytogenes isolate LM3. Our findings suggest that swine serves as a reservoir for developing resistance to disinfectant and heavy metals in L. monocytogenes and L. innocua, which share common resistance mechanisms such as efflux pumps and resistance genes. This work provides new insight into the coresistance events of other Listeria as a potential contributor of the resistance in L. monocytogenes.
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Affiliation(s)
- Dongyang Xu
- School of Food Science and Technology, South China University of Technology, Guangzhou, China
| | - Yan Deng
- State Key Testing Laboratory of Aquatic Products, Guangzhou Airport Entry-Exit Inspection and Quarantine Bureau, Guangzhou, China
| | - Rongdong Fan
- School of Food Science and Technology, South China University of Technology, Guangzhou, China
| | - Lei Shi
- Institute of Food Safety and Nutrition, Jinan University, Guangzhou, China.,State Key Laboratory of Food Safety Technology for Meat Products, Fujian, China
| | - Jianshan Bai
- State Key Testing Laboratory of Aquatic Products, Guangzhou Airport Entry-Exit Inspection and Quarantine Bureau, Guangzhou, China
| | - He Yan
- School of Food Science and Technology, South China University of Technology, Guangzhou, China
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23
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Wang CL, Chen BY, Hsu CT, Wu R, Chou CH. Salmonella Contamination in Ready-to-Eat Tilapia Sashimi Processing Plants. J Food Prot 2019; 82:256-261. [PMID: 30677309 DOI: 10.4315/0362-028x.jfp-18-324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In this study, we investigated contamination rates and possible contamination routes of Salmonella in two typical tilapia sashimi processing plants in Taiwan. We found that the overall isolation rate was 5.0% ( n = 61), from a total of 1,218 samples collected in a year from different processing sections (freezing, scaling and bleeding, visceral removal, washing and disinfection, and packaging) and from different operating times (before processing and 3 and 6 h after processing began). In plant A, which is a relatively well-operated plant compared with plant B, Salmonella was only found in the freezing, scaling and bleeding, and visceral removal sections, with isolation rates ranging from 0 to 9.3%. No Salmonella was identified in the final ready-to-eat products at plant A. In plant B, Salmonella was found in all sections and in the final products, with isolation rates ranging from 4.6 to 36.1%. Regarding the processing times, the contamination rates increased significantly ( P < 0.05) 3 h after processing began in plant B. Among the isolates, 10 serotypes were detected, some of which are commonly observed in human salmonellosis cases in Taiwan, indicating a risk of zoonoses. However, only four isolates showed antimicrobial resistance in the current study. With molecular subtyping, we observed accumulated and persistent Salmonellae contamination patterns in plant B. These results suggest that inadequate sanitation impairs the foodborne pathogen control program in tilapia sashimi plants.
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Affiliation(s)
- Chia-Lan Wang
- 1 Zoonoses Research Center and School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan
| | - Bang-Yuan Chen
- 2 Department of Food Science, Fu Jen Catholic University, 510 Zhongzheng Road, New Taipei City 242, Taiwan
| | - Chia-Tzu Hsu
- 1 Zoonoses Research Center and School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan
| | - Rayean Wu
- 1 Zoonoses Research Center and School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan
| | - Chung-Hsi Chou
- 1 Zoonoses Research Center and School of Veterinary Medicine, National Taiwan University, No. 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan
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Cufaoglu G, Ayaz ND. Listeria monocytogenesrisk associated with chicken at slaughter and biocontrol with three new bacteriophages. J Food Saf 2019. [DOI: 10.1111/jfs.12621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gizem Cufaoglu
- Department of Food Hygiene and TechnologyKirikkale University Faculty of Veterinary Medicine Yahsihan Kirikkale Turkey
| | - Naim Deniz Ayaz
- Department of Food Hygiene and TechnologyKirikkale University Faculty of Veterinary Medicine Yahsihan Kirikkale Turkey
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Ayaz ND, Onaran B, Cufaoglu G, Goncuoglu M, Ormanci FS, Erol I. Prevalence and Characterization of Listeria monocytogenes Isolated from Beef and Sheep Carcasses in Turkey with Characterization of Locally Isolated Listeriophages as a Control Measure. J Food Prot 2018; 81:2045-2053. [PMID: 30485766 DOI: 10.4315/0362-028x.jfp-18-310] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Swab samples from cattle and sheep carcasses (120 of each) were tested for Listeria monocytogenes, and 120 slaughterhouse wastewater samples were tested for listeriophages over 12 months (10 samples per month) to note the seasonal distribution. L. monocytogenes and bacteriophage isolates were characterized, and the biocontrol of L. monocytogenes was investigated in meatballs with a phage cocktail. L. monocytogenes was found in 3.4 and 2.5% of cattle and sheep carcasses, respectively. All the isolates were found to harbor hlyA, actA, inlA, inlB, inlC, inlJ, plcA, plcB, fbpA, and fri genes with varied mRNA expression levels by real-time reverse transcriptase PCR analysis. Five isolates did not harbor the vip gene. According to enterobacterial repetitive intergenic consensus PCR, L. monocytogenes isolates were classified into four different groups based on their DNA patterns. The L. monocytogenes isolates were characterized for antibiotic susceptibility; one strain was found to be resistant to five different antibiotic classes. Of 11 lytic listeriophages, two were selected for the cocktail based on their DNA restriction profiles, efficiency of plating, transmission electron microscopy, and in vitro and in vivo analyses. In the biocontrol study, we used a food model that consisted of a novel bacteriophage cocktail in raw meatballs. The highest reduction of L. monocytogenes was recorded as 2.2 log CFU/g at a multiplicity of cellular infection of 4.7 at the end of 1 h. In conclusion, the new bacteriophage cocktail in this study can be considered an efficient biocontrol agent of L. monocytogenes in meatballs.
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Affiliation(s)
- Naim Deniz Ayaz
- 1 Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Kirikkale University, 71450 Yahsihan, Kirikkale, Turkey
| | - Bahar Onaran
- 2 Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Ankara University, 06110 Diskapi, Ankara, Turkey
| | - Gizem Cufaoglu
- 1 Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Kirikkale University, 71450 Yahsihan, Kirikkale, Turkey
| | - Muammer Goncuoglu
- 2 Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Ankara University, 06110 Diskapi, Ankara, Turkey
| | - Fatma Seda Ormanci
- 2 Department of Food Hygiene and Technology, Faculty of Veterinary Medicine, Ankara University, 06110 Diskapi, Ankara, Turkey
| | - Irfan Erol
- 3 General Directorate of Food and Control, Republic of Turkey Ministry of Food Agriculture and Livestock, 06400 Lodumlu, Ankara, Turkey
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Zoellner C, Ceres K, Ghezzi-Kopel K, Wiedmann M, Ivanek R. Design Elements of Listeria Environmental Monitoring Programs in Food Processing Facilities: A Scoping Review of Research and Guidance Materials. Compr Rev Food Sci Food Saf 2018; 17:1156-1171. [PMID: 33350161 DOI: 10.1111/1541-4337.12366] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 05/04/2018] [Accepted: 05/11/2018] [Indexed: 01/08/2023]
Abstract
Occurrence of Listeria monocytogenes (Lm), the causative agent of listeriosis, in food processing facilities presents considerable challenges to food producers and food safety authorities. Design of an effective, risk-based environmental monitoring (EM) program is essential for finding and eliminating Lm from the processing environment to prevent product contamination. A scoping review was conducted to collate and synthesize available research and guidance materials on Listeria EM in food processing facilities. An exhaustive search was performed to identify all available research, industry and regulatory documents, and search results were screened for relevance based on eligibility criteria. After screening, 198 references were subjected to an in-depth review and categorized according to objectives for conducting Listeria sampling in food processing facilities and food sector. Mapping of the literature revealed research and guidance gaps by food sector, as fresh produce was the focus in only 10 references, compared to 72 on meat, 52 on fish and seafood, and 50 on dairy. Review of reported practices and guidance highlighted key design elements of EM, including the number, location, timing and frequency of sampling, as well as methods of detection and confirmation, and record-keeping. While utilization of molecular subtyping methods is a trend that will continue to advance understanding of Listeria contamination risks, improved study design and reporting standards by researchers will be essential to assist the food industry optimize their EM design and decision-making. The comprehensive collection of documents identified and synthesized in this review aids continued efforts to minimize the risk of Lm contaminated foods.
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Affiliation(s)
- Claire Zoellner
- Dept. of Population Medicine and Diagnostic Sciences, Cornell Univ., Ithaca, N.Y. 14850, U.S.A
| | - Kristina Ceres
- Dept. of Population Medicine and Diagnostic Sciences, Cornell Univ., Ithaca, N.Y. 14850, U.S.A
| | - Kate Ghezzi-Kopel
- Albert R. Mann Library, Univ. Library, 237 Mann Dr, Ithaca, N.Y. 14853, U.S.A
| | - Martin Wiedmann
- Dept. of Food Science, Cornell Univ., Ithaca, N.Y. 14853, U.S.A
| | - Renata Ivanek
- Dept. of Population Medicine and Diagnostic Sciences, Cornell Univ., Ithaca, N.Y. 14850, U.S.A
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Dhowlaghar N, Abeysundara PDA, Nannapaneni R, Schilling MW, Chang S, Cheng WH, Sharma CS. Growth and Biofilm Formation by Listeria monocytogenes in Catfish Mucus Extract on Four Food Contact Surfaces at 22 and 10°C and Their Reduction by Commercial Disinfectants. J Food Prot 2018; 81:59-67. [PMID: 29257728 DOI: 10.4315/0362-028x.jfp-17-103] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The objective of this study was to determine the effect of strain and temperature on growth and biofilm formation by Listeria monocytogenes in high and low concentrations of catfish mucus extract on various food contact surfaces at 10 and 22°C. The second objective of this study was to evaluate the efficacy of disinfectants at recommended concentrations and contact times for removing L. monocytogenes biofilm cells from a stainless steel surface covered with catfish mucus extract. Growth and biofilm formation of all L. monocytogenes strains increased with higher concentrations of catfish mucus extract at both 10 and 22°C. When 15 μg/mL catfish mucus extract was added to 3 log CFU/mL L. monocytogenes, the biofilm levels of L. monocytogenes on stainless steel reached 4 to 5 log CFU per coupon at 10°C and 5 to 6 log CFU per coupon at 22°C in 7 days. With 375 μg/mL catfish mucus extract, the biofilm levels of L. monocytogenes on stainless steel reached 5 to 6 log CFU per coupon at 10°C and 6 to 7.5 log CFU per coupon at 22°C in 7 days. No differences ( P > 0.05) were observed between L. monocytogenes strains tested for biofilm formation in catfish mucus extract on the stainless steel surface. The biofilm formation by L. monocytogenes catfish isolate HCC23 was lower on Buna-N rubber than on stainless steel, polyethylene, and polyurethane surfaces in the presence of catfish mucus extract ( P < 0.05). Contact angle analysis and atomic force microscopy confirmed that Buna-N rubber was highly hydrophobic, with lower surface energy and less roughness than the other three surfaces. The complete reduction of L. monocytogenes biofilm cells was achieved on the stainless steel coupons with a mixture of disinfectants, such as quaternary ammonium compounds with hydrogen peroxide or peracetic acid with hydrogen peroxide and octanoic acid at 25 or 50% of the recommended concentration, in 1 or 3 min compared with use of the quaternary ammonium compounds, chlorine, or acid disinfectants alone, which were ineffective for removing all the L. monocytogenes biofilm cells.
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Affiliation(s)
- Nitin Dhowlaghar
- 1 Department of Food Science, Nutrition and Health Promotion and
| | | | | | - Mark W Schilling
- 1 Department of Food Science, Nutrition and Health Promotion and
| | - Sam Chang
- 1 Department of Food Science, Nutrition and Health Promotion and
| | - Wen-Hsing Cheng
- 1 Department of Food Science, Nutrition and Health Promotion and
| | - Chander S Sharma
- 2 Department of Poultry Science, Mississippi State University, Mississippi State, Mississippi 39762, USA
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Vongkamjan K, Benjakul S, Kim Vu HT, Vuddhakul V. Longitudinal monitoring of Listeria monocytogenes and Listeria phages in seafood processing environments in Thailand. Food Microbiol 2017; 66:11-19. [DOI: 10.1016/j.fm.2017.03.014] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 03/14/2017] [Accepted: 03/21/2017] [Indexed: 10/19/2022]
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Listeria monocytogenes in raw milk, milking equipment and dairy workers: Molecular characterization and antimicrobial resistance patterns. J Glob Antimicrob Resist 2017; 10:264-270. [PMID: 28739228 DOI: 10.1016/j.jgar.2017.07.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/29/2017] [Accepted: 07/03/2017] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVES The aim of this study was to evaluate the genetic relatedness and patterns of antimicrobial resistance amongst L. monocytogenes isolated from raw milk, milking equipment, and hand swabs from workers in dairy farms. METHODS A total of 300 samples of raw milk, milking equipment, and hand swabs were collected from four dairy farms to examine the presence of Listeria species. Suspected isolates were further identified by VITEK-2 system and Polymerase Chain Reaction (PCR). Antimicrobial susceptibility of the L. monocytogenes isolates was determined, and genotyping analysis was performed by enterobacterial repetitive intergenic consensus-polymerase chain reaction (ERIC-PCR). RESULTS Listeria spp. was isolated from 79 (26.3%) of the 300 samples, including 29 (36.7%), 32 (40.5%), and 18 (22.8%) isolates found in raw milk, milking equipment, and hand swabs, respectively. L. monocytogenes was the most common isolated (87.3%) species, while the remaining Listeria isolates were L. innocua (12.7%). Among the 69 L. monocytogenes isolates, 42 (60.8%) showed the mutual presence of hlyA, prfA, inlA, and inlB virulence-associated genes. L. monocytogenes isolates from raw milk, milking equipment, and hand swabs showed high genetic relatedness. The potentially virulent L. monocytogenes isolates were most frequently resistance to tetracycline and clindamycin (81%, each) followed by rifampicin (71.4%), whereas, antimicrobial susceptibility was most frequently observed for ampicillin, levofloxacin, moxifloxacin, linezolid, and tigecycline (100%, each). Furthermore, 88% of L. monocytogenes isolates showed multidrug-resistance. CONCLUSIONS The findings of this study show that the contamination of dairy farms with L. monocytogenes is relatively high, and highlight the emergence of multi-drug resistant L. monocytogenes in dairy farms. However, ampicillin is a good choice for treatment of listeriosis in the study area.
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Mikš-Krajnik M, James Feng LX, Bang WS, Yuk HG. Inactivation of Listeria monocytogenes and natural microbiota on raw salmon fillets using acidic electrolyzed water, ultraviolet light or/and ultrasounds. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.11.033] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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NicAogáin K, O’Byrne CP. The Role of Stress and Stress Adaptations in Determining the Fate of the Bacterial Pathogen Listeria monocytogenes in the Food Chain. Front Microbiol 2016; 7:1865. [PMID: 27933042 PMCID: PMC5120093 DOI: 10.3389/fmicb.2016.01865] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 11/04/2016] [Indexed: 12/15/2022] Open
Abstract
The foodborne pathogen Listeria monocytogenes is a highly adaptable organism that can persist in a wide range of environmental and food-related niches. The consumption of contaminated ready-to-eat foods can cause infections, termed listeriosis, in vulnerable humans, particularly those with weakened immune systems. Although these infections are comparatively rare they are associated with high mortality rates and therefore this pathogen has a significant impact on food safety. L. monocytogenes can adapt to and survive a wide range of stress conditions including low pH, low water activity, and low temperature, which makes it problematic for food producers who rely on these stresses for preservation. Stress tolerance in L. monocytogenes can be explained partially by the presence of the general stress response (GSR), a transcriptional response under the control of the alternative sigma factor sigma B (σB) that reconfigures gene transcription to provide homeostatic and protective functions to cope with the stress. Within the host σB also plays a key role in surviving the harsh conditions found in the gastrointestinal tract. As the infection progresses beyond the GI tract L. monocytogenes uses an intracellular infectious cycle to propagate, spread and remain protected from the host's humoral immunity. Many of the virulence genes that facilitate this infectious cycle are under the control of a master transcriptional regulator called PrfA. In this review we consider the environmental reservoirs that enable L. monocytogenes to gain access to the food chain and discuss the stresses that the pathogen must overcome to survive and grow in these environments. The overlap that exists between stress tolerance and virulence is described. We review the principal measures that are used to control the pathogen and point to exciting new approaches that might provide improved means of control in the future.
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Affiliation(s)
| | - Conor P. O’Byrne
- Bacterial Stress Response Group, Microbiology, School of Natural Sciences, College of Science, National University of IrelandGalway, Ireland
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Chen BY, Wang CY, Wang CL, Fan YC, Weng IT, Chou CH. Prevalence and Persistence of Listeria monocytogenes in Ready-to-Eat Tilapia Sashimi Processing Plants. J Food Prot 2016; 79:1898-1903. [PMID: 28221901 DOI: 10.4315/0362-028x.jfp-16-149] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A 2-year study was performed at two ready-to-eat tilapia sashimi processing plants (A and B) to identify possible routes of contamination with Listeria monocytogenes during processing. Samples were collected from the aquaculture environments, transportation tanks, processing plants, and final products. Seventy-nine L. monocytogenes isolates were found in the processing environments and final products; 3.96% (50 of 1,264 samples) and 3.86% (29 of 752 samples) of the samples from plants A and B, respectively, were positive for L. monocytogenes . No L. monocytogenes was detected in the aquaculture environments or transportation tanks. The predominant L. monocytogenes serotypes were 1/2b (55.70%) and 4b (37.97%); serotypes 3b and 4e were detected at much lower percentages. At both plants, most processing sections were contaminated with L. monocytogenes before the start of processing, which indicated that the cleaning and sanitizing methods did not achieve adequate pathogen removal. Eleven seropulsotypes were revealed by pulsed-field gel electrophoresis and serotyping. Analysis of seropulsotype distribution revealed that the contamination was disseminated by the processing work; the same seropulsotypes were repeatedly found along the work flow line and in the final products. Specific seropulsotypes were persistently found during different sampling periods, which suggests that the sanitation procedures or equipment used at these plants were inadequate. Plant staff should improve the sanitation procedures and equipment to reduce the risk of L. monocytogenes cross-contamination and ensure the safety of ready-to-eat tilapia products.
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Affiliation(s)
- Bang-Yuan Chen
- Department of Food Science, Fu Jen Catholic University, 510, Zhongzheng Road, New Taipei City 242, Taiwan
| | - Chung-Yi Wang
- Experimental Forest, National Taiwan University, 12, Section 1, Chien-Shan Road, Nan-Tou County 557, Taiwan
| | - Chia-Lan Wang
- Zoonoses Research Center and School of Veterinary Medicine, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan
| | - Yang-Chi Fan
- Zoonoses Research Center and School of Veterinary Medicine, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan
| | - I-Ting Weng
- Zoonoses Research Center and School of Veterinary Medicine, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan
| | - Chung-Hsi Chou
- Zoonoses Research Center and School of Veterinary Medicine, National Taiwan University, 1, Section 4, Roosevelt Road, Taipei City 106, Taiwan
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Prevalence and molecular characterization of Listeria spp. and Listeria monocytogenes isolated from fish, shrimp, and cooked ready-to-eat (RTE) aquatic products in Iran. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.06.020] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Mohamed Y, Reda WW, Abdel-Moein K, Abd El-Razik KA, Barakat AM, El Fadaly HA, Hassanain NA, Hegazi AG. Prevalence and phylogenetic characterization of Listeria monocytogenes isolated from processed meat marketed in Egypt. J Genet Eng Biotechnol 2016; 14:119-123. [PMID: 30647605 PMCID: PMC6299886 DOI: 10.1016/j.jgeb.2016.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 05/22/2016] [Accepted: 06/05/2016] [Indexed: 11/23/2022]
Abstract
Because of its high case fatality rate, listeriosis locates among the most frequent causes of death due to food-borne illness. In this study, a total of 150 processed meat samples were collected from Giza Governorate, Egypt. Phenotypic and genotypic identification of Listeria monocytogenes was performed using PCR incorporating listeriolysin O virulence gene hlyA followed by DNA sequence analysis. L. monocytogenes was confirmed in 4% of each of beef burger, minced meat, and luncheon samples. Phylogenetic analysis showed that all the six Egyptian isolates have high homology with Colombian isolate (EF030606), except one Egyptian isolate which showed high homology with Indian isolate (EU840690). The public health significance of these pathogens as well as recommended sanitary measures were discussed.
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Affiliation(s)
- Yasmin Mohamed
- Department of Zoonoses, National Research Center, El-Behouth St., Giza, Egypt
| | - Waffa W. Reda
- Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Khaled Abdel-Moein
- Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, Egypt
| | - Khaled A. Abd El-Razik
- Department of Reproduction and A.I., National Research Center, El-Behouth St., Giza, Egypt
- Corresponding author.
| | - Ashraf M.A. Barakat
- Department of Zoonoses, National Research Center, El-Behouth St., Giza, Egypt
| | - Hassan A. El Fadaly
- Department of Zoonoses, National Research Center, El-Behouth St., Giza, Egypt
| | - Nawal A. Hassanain
- Department of Zoonoses, National Research Center, El-Behouth St., Giza, Egypt
| | - Ahmed G. Hegazi
- Department of Zoonoses, National Research Center, El-Behouth St., Giza, Egypt
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Leong D, Alvarez-Ordóñez A, Zaouali S, Jordan K. Examination of Listeria monocytogenes in Seafood Processing Facilities and Smoked Salmon in the Republic of Ireland. J Food Prot 2015; 78:2184-90. [PMID: 26613913 DOI: 10.4315/0362-028x.jfp-15-233] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Listeria monocytogenes is a foodborne pathogen that causes listeriosis, a relatively rare but life-threatening disease primarily affecting immunocompromised individuals. The aim of this study was to determine the prevalence of L. monocytogenes in the seafood processing industry in the Republic of Ireland. The occurrence of L. monocytogenes was determined by regular sampling of both food samples and processing environment swabs at eight seafood processing facilities over two calendar years. All samples were analyzed by the International Organization for Standardization 11290-1 standard method, and the isolates were characterized by PCR, pulsed-field gel electrophoresis, serotyping, and the occurrence of some genes related to survival under stress (SSI-1, Tn6188, and bcrABC). A prevalence of 2.5% in 508 samples (433 environmental swabs and 75 food samples) was found. From the isolates obtained, eight different pulsed-field gel electrophoresis profiles were identified, two occurring in more than one facility and one occurring in food and the environment. Five of the eight pulsotypes identified contained at least one of the three stress survival-related genes tested. The tolerance of the isolates to benzalkonium chloride, a representative quaternary ammonium compound, was also examined and ranged from 5.5 ± 0.5 to 8.5 ± 0.5 ppm of benzalkonium chloride. To evaluate the ability of smoked salmon to support the growth of L. monocytogenes, including the T4 widespread pulsotype that was isolated, a challenge test was performed on cold-smoked salmon obtained from two separate producers. The results showed clearly that both types of smoked salmon supported the growth of L. monocytogenes. Although occurrence of L. monocytogenes on seafood was low, this study showed that the smoked salmon used in this study can support the growth of L. monocytogenes; therefore, vigilance is required in the processing facilities to reduce the associated risk.
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Affiliation(s)
- Dara Leong
- Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
| | | | - Sarah Zaouali
- Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland
| | - Kieran Jordan
- Teagasc Food Research Centre, Moorepark, Fermoy, County Cork, Ireland.
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Chen M, Wu Q, Zhang J, Wu S, Guo W. Prevalence, enumeration, and pheno- and genotypic characteristics of Listeria monocytogenes isolated from raw foods in South China. Front Microbiol 2015; 6:1026. [PMID: 26483765 PMCID: PMC4586447 DOI: 10.3389/fmicb.2015.01026] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Accepted: 09/09/2015] [Indexed: 11/13/2022] Open
Abstract
Listeria monocytogenes is an important foodborne pathogen that can cause serious illness in immunocompromised individuals, pregnant women, the elderly, and newborns. The aim of this study was to: (i) evaluate the prevalence and contamination level [most probable number (MPN)] of L. monocytogenes in 567 retail raw foods (fishery products, n = 154; raw/fresh meat, n = 123; frozen foods, n = 110; edible fungi, n = 108; vegetables, n = 72) collected from South China and (ii) to gain further knowledge on the phenotype and genotype distributions of this important foodborne pathogen. Approximately 22% of the samples were positive for L. monocytogenes. The contamination levels were between 0.3 and 10 MPN/g in 75.0%, between 10 and 100 MPN/g in 11.0% and less than 100 MPN/g in 14.0% of the countable samples. Five serogroups were identified among the 177 foodborne L. monocytogenes isolates, with 1/2a-3a (42.4%) and 1/2b-3b (26.0%) serogroups being the most dominant. Serogroups I.1 and II.2 were only found in the edible mushrooms, while serogroup III was dominant in the fishery products, suggesting that specific serogroups of L. monocytogenes may have distinct ecological niches. Ten (5.6%) L. monocytogenes isolates exhibited multidrug resistance. Genetic relatedness analysis revealed the absence of distinct associations between specific food types, antibiotic resistance, serogroups, and genetic diversity. The present study provided the first baseline data on the prevalence, contamination level, and characteristics of L. monocytogenes isolated from raw foods in South China. Some multidrug resistant strains belonged to the epidemiologically important serogroups (I.1 and II.1), implying a potential public health risk. In addition, these findings also provide basic information for the Chinese food safety associated authorities to draft appropriate standards to control L. monocytogenes contamination and improve microbiological safety of raw foods.
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Affiliation(s)
- Moutong Chen
- Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology Guangzhou, China ; School of Bioscience and Bioengineering, South China University of Technology Guangzhou, China
| | - Qingping Wu
- Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology Guangzhou, China
| | - Jumei Zhang
- Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology Guangzhou, China
| | - Shi Wu
- Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology Guangzhou, China ; School of Bioscience and Bioengineering, South China University of Technology Guangzhou, China
| | - Weipeng Guo
- Guangdong Institute of Microbiology, State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology Guangzhou, China
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Montero D, Bodero M, Riveros G, Lapierre L, Gaggero A, Vidal RM, Vidal M. Molecular epidemiology and genetic diversity of Listeria monocytogenes isolates from a wide variety of ready-to-eat foods and their relationship to clinical strains from listeriosis outbreaks in Chile. Front Microbiol 2015; 6:384. [PMID: 25983727 PMCID: PMC4415432 DOI: 10.3389/fmicb.2015.00384] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 04/14/2015] [Indexed: 11/13/2022] Open
Abstract
Listeria monocytogenes is a pathogen transmitted through food that can cause severe infections in high-risk groups such as pregnant women, elderly, young children and immunocompromised individuals. It is a ubiquitous bacterium that can survive in harsh conditions, such as dry environments, at low temperatures, in brine conditions and at low pH values. It also has the capacity to form biofilms, which makes it particularly successful even in colonizing surfaces within food processing plants. This study analyzed the presence of L. monocytogenes in ready-to-eat food (RTE) such as sausage, cheese, fresh salads, and other types of raw food. 850 samples of refrigerated and packaged food collected in 2008 and 2009 were analyzed. It was found that 25% of these samples were contaminated with L. monocytogenes strains. Serotyping and virulence genes detection by polymerase chain reaction (PCR) identified that strains belonging to serotype 4b, and containing one or more genes encoded by pathogenicity island (LIPI-1), were significantly associated with specific food types. Furthermore, using pulse field gel electrophoresis (PFGE), it was possible to associate isolates from cheese with strains from clinical cases of listeriosis outbreaks that occurred during the same time period within the same geographic regions. In addition, a strong correlation was observed between isolates from frozen seafood and from clinical strains obtained from sporadic cases of listeriosis. In agreement with reports described in other countries, our results shown that Chilean strains of L. monocytogenes from food products include the most virulent serotypes, encoding for the main virulence genes of the LIPI-1, and were clonally related to clinical isolates from sporadic cases and outbreaks of listeriosis. In conclusion, we show that Chilean isolates of L. monocytogenes from RTE and raw food products can cause disease in humans, representing a public health risk that justifies permanent surveillance.
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Affiliation(s)
- David Montero
- Programa de Microbiologia y Micología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile Santiago, Chile
| | - Marcia Bodero
- Laboratorio de Salud Pública Ambiental y Laboral, Secretaría Regional Ministerial de Salud Región Metropolitana Santiago, Chile
| | - Guillermina Riveros
- Laboratorio de Salud Pública Ambiental y Laboral, Secretaría Regional Ministerial de Salud Región Metropolitana Santiago, Chile
| | - Lisette Lapierre
- Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile Santiago, Chile
| | - Aldo Gaggero
- Programa de Virología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile Santiago, Chile
| | - Roberto M Vidal
- Laboratorio de Salud Pública Ambiental y Laboral, Secretaría Regional Ministerial de Salud Región Metropolitana Santiago, Chile
| | - Maricel Vidal
- Laboratorio de Salud Pública Ambiental y Laboral, Secretaría Regional Ministerial de Salud Región Metropolitana Santiago, Chile
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Obaidat MM, Bani Salman AE, Lafi SQ, Al-Abboodi AR. Characterization of Listeria monocytogenes from three countries and antibiotic resistance differences among countries and Listeria monocytogenes serogroups. Lett Appl Microbiol 2015; 60:609-14. [PMID: 25808878 DOI: 10.1111/lam.12420] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Revised: 02/23/2015] [Accepted: 03/12/2015] [Indexed: 11/29/2022]
Abstract
A total of 104 Listeria monocytogenes isolates from 330 fish samples from three countries were characterized by multiplex PCR for serogrouping and virulence markers determination and tested for antibiotics resistance. A 53·8% of the isolates belonged to serogroup 1/2a, 3a; 32% belonged to 1/2b, 3b, 7; 14·4% belonged to 4b, 4d, 4e and 1% belonged to 1/2c, 3c. All isolates exhibited resistance to at least one antibiotic but the resistance rates varied among countries. The isolates exhibited high resistance to penicillin, rifampicin, clindamycin, erythromycin and tetracycline, but low resistance to amoxicillin-clavulanic acid, streptomycin, sulfamethoxazole-trimethoprim, gentamicin, chloramphenicol and kanamycin. When comparing countries, the resistance rate for rifampicin, clindamycin, erythromycin, tetracycline, amoxicillin-clavulanic acid varied among countries. When comparing serogroup, 1/2a, 3a exhibited the highest resistance to clindamycin, erythromycin, tetracycline and vancomycin while serogroup 4b, 4d, 4e exhibited the highest resistance to amoxicillin-clavulanic acid. All isolates carried inlA, inlC, inlJ and lmo2672. Listeriolysin S was carried by 42 and 30% of 4b and 1/2b isolates respectively. Significance and impact of the study: This is one of few studies to correlate antibiotic resistance with Listeria monocytogenes serogroups. The study also compared the antibiotic resistance and serogroups of L. monocytogenes isolates from three countries in one single study. The findings of this study will be helpful in improving data on the antibiotics resistance of L. monocytogenes in developing countries and enriches the epidemiological and public health studies of L. monocytogenes.
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Affiliation(s)
- M M Obaidat
- Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - A E Bani Salman
- Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - S Q Lafi
- Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, Jordan
| | - A R Al-Abboodi
- Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, Jordan
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Whole-Genome Sequence of Listeria monocytogenes Strains from Clinical and Environmental Samples from Varanasi, India. GENOME ANNOUNCEMENTS 2015; 3:3/1/e01496-14. [PMID: 25657276 PMCID: PMC4319597 DOI: 10.1128/genomea.01496-14] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
We present here the whole-genome sequences of Listeria monocytogenes from Ganges River water, agricultural soil, and human clinical samples from Varanasi, India, which will be used for a comparative analysis.
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Shi W, Qingping W, Jumei Z, Moutong C, Zéan Y. Prevalence, antibiotic resistance and genetic diversity of Listeria monocytogenes isolated from retail ready-to-eat foods in China. Food Control 2015. [DOI: 10.1016/j.foodcont.2014.07.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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42
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Genotypic characterization and antimicrobial resistance of Listeria monocytogenes from ready-to-eat foods. Food Control 2014. [DOI: 10.1016/j.foodcont.2014.03.038] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Soni DK, Singh M, Singh DV, Dubey SK. Virulence and genotypic characterization of Listeria monocytogenes isolated from vegetable and soil samples. BMC Microbiol 2014; 14:241. [PMID: 25195727 PMCID: PMC4172985 DOI: 10.1186/s12866-014-0241-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 09/02/2014] [Indexed: 12/05/2022] Open
Abstract
Background Listeria monocytogenes, a foodborne pathogen is ubiquitous to different environments including the agroecosystem. The organism poses serious public health problem. Therefore, an attempt has been made to gain further insight to their antibiotic susceptibility, serotypes and the virulence genes. Results Out of the 10 vegetables selected, 6 (brinjal, cauliflower, dolichos-bean, tomato, chappan-kaddu and chilli), 20 isolates (10%) tested positive for L. monocytogenes. The prevalence of the pathogen in the respective rhizosphere soil samples was 5%. Noticeably, L. monocytogenes was absent from only cabbage, broccoli, palak and cowpea, and also the respective rhizospheric soils. The 30 isolates + ve for pathogenicity, belonged to serogroup 4b, 4d or 4e, and all were positive for inlA, inlC, inlJ, plcA, prfA, actA, hlyA and iap gene except one (VC3) among the vegetable isolates that lacked the plcA gene. ERIC- and REP-PCR collectively revealed that isolates from vegetables and their respective rhizospheric soils had distinct PCR fingerprints. Conclusions The study demonstrates the prevalence of pathogenic L. monocytogenes in the selected agricultural farm samples. The increase in the number of strains resistant to ciprofloxacin and/or cefoxitin seems to pose serious public health consequences.
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Leong D, Alvarez-Ordóñez A, Jordan K. Monitoring occurrence and persistence of Listeria monocytogenes in foods and food processing environments in the Republic of Ireland. Front Microbiol 2014; 5:436. [PMID: 25191314 PMCID: PMC4138519 DOI: 10.3389/fmicb.2014.00436] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 08/01/2014] [Indexed: 01/04/2023] Open
Abstract
Although rates of listeriosis are low in comparison to other foodborne pathogenic illness, listeriosis poses a significant risk to human health as the invasive form can have a mortality rate as high as 30%. Food processors, especially those who produce ready-to-eat (RTE) products, need to be vigilant against Listeria monocytogenes, the causative pathogen of listeriosis, and as such, the occurrence of L. monocytogenes in food and in the food processing environment needs to be carefully monitored. To examine the prevalence and patterns of contamination in food processing facilities in Ireland, 48 food processors submitted 8 samples every 2 months from March 2013 to March 2014 to be analyzed for L. monocytogenes. No positive samples were detected at 38% of the processing facilities tested. Isolates found at the remaining 62% of facilities were characterized by serotyping and Pulsed Field Gel Electrophoresis (PFGE). A general L. monocytogenes prevalence of 4.6% was seen in all samples analyzed with similar rates seen in food and environmental samples. Differences in prevalence were seen across different food processors, food sectors, sampling months etc. and PFGE analysis allowed for the examination of contamination patterns and for the identification of several persistent strains. Seven of the food processing facilities tested showed contamination with persistent strains and evidence of bacterial transfer from the processing environment to food (the same pulsotype found in both) was seen in four of the food processing facilities tested.
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Affiliation(s)
- Dara Leong
- Food Safety Department, Teagasc Food Research Centre Moorepark, Fermoy, Cork, Ireland
| | | | - Kieran Jordan
- Food Safety Department, Teagasc Food Research Centre Moorepark, Fermoy, Cork, Ireland
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Jami M, Ghanbari M, Zunabovic M, Domig KJ, Kneifel W. Listeria monocytogenesin Aquatic Food Products-A Review. Compr Rev Food Sci Food Saf 2014. [DOI: 10.1111/1541-4337.12092] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Mansooreh Jami
- Dept. of Food Science and Technology; Inst. of Food Science; BOKU-Univ. of Natural Resources and Life Sciences; Muthgasse 18, A-1190 Vienna Austria
- Dept. of Fisheries; Faculty of Natural Resources; Univ. of Zabol; Zabol Iran
| | - Mahdi Ghanbari
- Dept. of Food Science and Technology; Inst. of Food Science; BOKU-Univ. of Natural Resources and Life Sciences; Muthgasse 18, A-1190 Vienna Austria
- Dept. of Fisheries; Faculty of Natural Resources; Univ. of Zabol; Zabol Iran
| | - Marija Zunabovic
- Dept. of Food Science and Technology; Inst. of Food Science; BOKU-Univ. of Natural Resources and Life Sciences; Muthgasse 18, A-1190 Vienna Austria
| | - Konrad J. Domig
- Dept. of Food Science and Technology; Inst. of Food Science; BOKU-Univ. of Natural Resources and Life Sciences; Muthgasse 18, A-1190 Vienna Austria
| | - Wolfgang Kneifel
- Dept. of Food Science and Technology; Inst. of Food Science; BOKU-Univ. of Natural Resources and Life Sciences; Muthgasse 18, A-1190 Vienna Austria
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Chen M, Wu Q, Zhang J, Guo W, Wu S, Yang X. Prevalence and contamination patterns of Listeria monocytogenes in Flammulina velutipes plants. Foodborne Pathog Dis 2014; 11:620-7. [PMID: 24824447 DOI: 10.1089/fpd.2013.1727] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
Four mushroom (Flammulina velutipes) production plants were sampled to investigate the prevalence and contamination source of Listeria monocytogenes. Among 295 samples, the prevalence of L. monocytogenes was 18.6%; the contamination appeared to originate from the mycelium-scraping machinery, contaminating both the product and upstream packaging equipment. Of 55 L. monocytogenes isolates, lineages I.1 (1/2a-3a) and II.2 (1/2b-3b-7) accounted for 65.5% and 34.5%, respectively. In addition, lineage I.1 formed significantly thicker biofilms than those within lineage II.2, as determined by crystal violet staining and scanning electron microscopy. Genotype analyses of L. monocytogenes isolates using enterobacteria repetitive intergenic consensus-polymerase chain reaction, and random amplified polymorphic DNA revealed that the surfaces of mycelium-scraping machinery may serve as the main source of L. monocytogenes contamination in three of the four plants. This study was the first report to explore the potential contamination sources of L. monocytogenes in the mushroom production chain, thereby providing baseline information for adopting prophylactic measures for critical control points during production in mushroom plants to avoid L. monocytogenes contamination.
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Affiliation(s)
- Moutong Chen
- 1 School of Bioscience and Bioengineering, South China University of Technology , Guangzhou, China
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Chen M, Wu Q, Zhang J, Yan Z, Wang J. Prevalence and characterization of Listeria monocytogenes isolated from retail-level ready-to-eat foods in South China. Food Control 2014. [DOI: 10.1016/j.foodcont.2013.09.061] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tocmo R, Krizman K, Khoo WJ, Phua LK, Kim M, Yuk HG. Listeria monocytogenes in Vacuum-Packed Smoked Fish Products: Occurrence, Routes of Contamination, and Potential Intervention Measures. Compr Rev Food Sci Food Saf 2014; 13:172-189. [PMID: 33412645 DOI: 10.1111/1541-4337.12052] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2009] [Accepted: 11/14/2003] [Indexed: 12/15/2022]
Abstract
The occurrence of Listeria monocytogenes in ready-to-eat (RTE) fish products is well documented and represents an important food safety concern. Contamination of this pathogen in vacuum-packed (VP) smoked fish products at levels greater than the RTE food limit (100 CFU/g) has been traced to factors such as poor sanitary practices, contaminated processing environments, and temperature abuse during prolonged storage in retail outlets. Intervention technologies including physical, biological, and chemical techniques have been studied to control transmission of L. monocytogenes to these products. High-pressure processing, irradiation, and pulsed UV-light treatment have shown promising results. Potential antilisterial effects of some sanitizers and combined chemical preservatives have also been demonstrated. Moreover, the concept of biopreservation, use of bioactive packaging, and a combination of different intervention technologies, as in the hurdle concept, are also under consideration. In this review, the prevalence, routes of contamination, and potential intervention technologies to control transmission of L. monocytogenes in VP smoked fish products are discussed.
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Affiliation(s)
- Restituto Tocmo
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Katja Krizman
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Wei Jie Khoo
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Li Kai Phua
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Minjeong Kim
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
| | - Hyun-Gyun Yuk
- Food Science & Technology Programme, Dept. of Chemistry, Natl. Univ. of Singapore, 3 Science Drive 3, Singapore, 117543
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Fu LL, Li JR. Microbial Source Tracking: A Tool for Identifying Sources of Microbial Contamination in the Food Chain. Crit Rev Food Sci Nutr 2013; 54:699-707. [DOI: 10.1080/10408398.2011.605231] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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50
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Fallah AA, Saei-Dehkordi SS, Mahzounieh M. Occurrence and antibiotic resistance profiles of Listeria monocytogenes isolated from seafood products and market and processing environments in Iran. Food Control 2013. [DOI: 10.1016/j.foodcont.2013.06.015] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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