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Liu J, Liang Z, Zhongla M, Wang H, Sun X, Zheng J, Ding X, Yang F. Prevalence and Molecular Characteristics of Enterococci Isolated from Clinical Bovine Mastitis Cases in Ningxia. Infect Drug Resist 2024; 17:2121-2129. [PMID: 38828370 PMCID: PMC11141574 DOI: 10.2147/idr.s461587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 04/25/2024] [Indexed: 06/05/2024] Open
Abstract
Purpose This study aimed to investigate the prevalence and genetic characterization of enterococcal isolates (Enterococcus faecalis, Enterococcus faecium and Enterococcus hirae) isolated from clinical bovine mastitis cases in Ningxia, China. Patients and Methods The enterococci were identified by 16S rRNA amplification and sequencing. Antimicrobial resistance was determined by disc diffusion method. Virulence and antimicrobial resistance genes were detected by PCR assays. Results Overall, 198 enterococcal isolates were identified from 2897 mastitis samples, including 137 (4.7%) E. faecalis, 50 (1.7%) E. faecium and 11 (0.4%) E. hirae. E. faecalis, E. faecium and E. hirae isolates showed high resistance to tetracycline (92.7%, 68.0%, 90.9%), followed by erythromycin (86.9%, 76.0%, 72.7%). The multidrug-resistant strains of E. faecalis and E. faecium were 29 (21.2%) and 13 (26.0%), respectively. The resistance of E. faecalis, E. faecium and E. hirae isolates to tetracycline is mainly attributed to the presence of tetL (alone or combined with tetM and/or tetK), the erythromycin resistance to ermB (alone or combined with ermC and/or ermA). Moreover, cpd (94.2%), gelE (77.4%), efaAfs (93.4%), and esp (79.6%) were the most common virulence genes in E. faecalis. In E. faecium, except for the gene efaAfs (82.0%), other virulence genes are rarely found. Only two strains of E. hirae carrying asa1 gene were detected. Conclusion The results of this study can provide a reference for the prevention and treatment of bovine mastitis caused by enterococci.
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Affiliation(s)
- Jing Liu
- Key Laboratory of New Animal Drug Project of Gansu Province/Key Laboratory of Veterinary Pharmaceutics Discovery, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, People’s Republic of China
| | - Zeyi Liang
- Key Laboratory of New Animal Drug Project of Gansu Province/Key Laboratory of Veterinary Pharmaceutics Discovery, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, People’s Republic of China
| | - Maocao Zhongla
- Gannan Animal Disease Prevention and Control Center, Hezuo, People’s Republic of China
| | - Hongsheng Wang
- Xiangyang Vocational and Technical College, Xiangyang, People’s Republic of China
| | - Xu Sun
- College of Life Sciences and Engineering, Lanzhou University of Technology, Lanzhou, People’s Republic of China
| | - Juanshan Zheng
- Key Laboratory of New Animal Drug Project of Gansu Province/Key Laboratory of Veterinary Pharmaceutics Discovery, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, People’s Republic of China
| | - Xuezhi Ding
- Key Laboratory of New Animal Drug Project of Gansu Province/Key Laboratory of Veterinary Pharmaceutics Discovery, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, People’s Republic of China
| | - Feng Yang
- Key Laboratory of New Animal Drug Project of Gansu Province/Key Laboratory of Veterinary Pharmaceutics Discovery, Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Science, Lanzhou, People’s Republic of China
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Ben Farhat L, Aissaoui N, Torrijos R, Luz C, Meca G, Abidi F. Correlation between metabolites of lactic acid bacteria isolated from dairy traditional fermented Tunisian products and antifungal and antioxidant activities. J Appl Microbiol 2022; 133:3069-3082. [PMID: 35924966 DOI: 10.1111/jam.15763] [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: 04/08/2022] [Revised: 07/11/2022] [Accepted: 08/02/2022] [Indexed: 12/01/2022]
Abstract
AIMS The objective of this study is to identify and investigate the antifungal and antioxidant potential of lactic acid bacteria (LAB) isolated from traditional fermented products. METHODS AND RESULTS In this work, a collection of LAB was isolated from traditional fermented products collected in four Tunisian regions. After first screening using the overlay method, seven bacterial strains were retained due to their high antifungal effect. Four strains of Limosilactobacillus fermentum were identified, one strain of Lacticaseibacillus paracasei, one strain of Lacticaseibacillus rhamnosus and one strain of Enterococcus faecium. The antifungal as well as the antioxidant potential of these bacteria were then evaluated. Bacterial strains were effective against six fungal strains with a minimum inhibitory concentrations ranging from 25 to 100 mg/mL and a minimum fungicidal concentrations ranging from 50 to 200 mg/mL. Cell free supernatants of LAB were analyzed by HPLC-DAD and LC-MS-qTOF-MS analysis. Results showed significant production of organic acids as well as several phenolic compounds. Correlation analysis confirmed that PLA and 1,2-Dihydroxybenzene were positively correlated with antifungal potential. The results of the antioxidant activity highlighted an ABTS radical cation scavenging activity ranging from 49% to 57% and a DPPH trapping percentage ranging from 80% to 97%. CONCLUSIONS Therefore, due to these characteristics, identified lactic acid bacteria strains have shown their effectiveness to perform as antifungal and antioxidant agents. SIGNIFICANCE AND IMPACT OF THE STUDY Since microbial contamination is at the root of extensive losses in the food sector, the identified strains or their metabolites can potentially be used as additives to limit microorganism spoilage in food products and increase their shelf life.
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Affiliation(s)
- Leila Ben Farhat
- University of Carthage, INSAT, Laboratory of Protein Engineering and Bioactive Molecules (LR11ES24), BP 676, 1080 Cedex, Tunisia.,University of València, Faculty of Pharmacy, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Nutrition and Food Science Area, Avda. Vicent Andrés Estellés, 46100 Burjassot, València, Spain
| | - Neyssene Aissaoui
- University of Carthage, INSAT, Laboratory of Protein Engineering and Bioactive Molecules (LR11ES24), BP 676, 1080 Cedex, Tunisia
| | - Raquel Torrijos
- University of València, Faculty of Pharmacy, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Nutrition and Food Science Area, Avda. Vicent Andrés Estellés, 46100 Burjassot, València, Spain
| | - Carlos Luz
- University of València, Faculty of Pharmacy, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Nutrition and Food Science Area, Avda. Vicent Andrés Estellés, 46100 Burjassot, València, Spain
| | - Giuseppe Meca
- University of València, Faculty of Pharmacy, Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine Department, Nutrition and Food Science Area, Avda. Vicent Andrés Estellés, 46100 Burjassot, València, Spain
| | - Ferid Abidi
- University of Carthage, INSAT, Laboratory of Protein Engineering and Bioactive Molecules (LR11ES24), BP 676, 1080 Cedex, Tunisia
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Trejo-González L, Gutiérrez-Carrillo AE, Rodríguez-Hernández AI, Del Rocío López-Cuellar M, Chavarría-Hernández N. Bacteriocins Produced by LAB Isolated from Cheeses within the Period 2009-2021: a Review. Probiotics Antimicrob Proteins 2021; 14:238-251. [PMID: 34342858 PMCID: PMC8329406 DOI: 10.1007/s12602-021-09825-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/20/2021] [Indexed: 12/18/2022]
Abstract
A survey is presented concerning original research articles published in well-reputed scientific journals on the isolation of lactic acid bacteria (LAB) from cheeses worldwide, where researchers evaluated the bacteriocin production by such isolates in searching for novel functional peptides that can exhibit potential for biotechnological applications. Seventy-one articles were published in the period of study, with contributions being American (45%), Asiatic (28%), and European (21%), being Brazil-USA-Mexico, Turkey-China, and France-Italy the countries that contributed the most for each said continent, respectively. Most of the isolated LAB belong to the genera Enterococcus (35%), Lactobacillus (30%), Lactococcus (14%), and Pediococcus (10%), coming from soft (64%), hard (27%), and semi-hard (9%) cheeses, predominantly. Also, scholars focused mainly on the food biopreservation (81%) and pharmaceutical field (18%) potential applications.
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Affiliation(s)
- Lorena Trejo-González
- Cuerpo Académico de Biotecnología Agroalimentaria, Instituto de Ciencias Agropecuarias, Universidad Autónoma del Estado de Hidalgo. Av, Universidad Km 1, Rancho Universitario, C.P. 43600, Tulancingo, Hidalgo, Mexico
| | - Ana-Estefanía Gutiérrez-Carrillo
- Cuerpo Académico de Biotecnología Agroalimentaria, Instituto de Ciencias Agropecuarias, Universidad Autónoma del Estado de Hidalgo. Av, Universidad Km 1, Rancho Universitario, C.P. 43600, Tulancingo, Hidalgo, Mexico
| | - Adriana-Inés Rodríguez-Hernández
- Cuerpo Académico de Biotecnología Agroalimentaria, Instituto de Ciencias Agropecuarias, Universidad Autónoma del Estado de Hidalgo. Av, Universidad Km 1, Rancho Universitario, C.P. 43600, Tulancingo, Hidalgo, Mexico
| | - Ma Del Rocío López-Cuellar
- Cuerpo Académico de Biotecnología Agroalimentaria, Instituto de Ciencias Agropecuarias, Universidad Autónoma del Estado de Hidalgo. Av, Universidad Km 1, Rancho Universitario, C.P. 43600, Tulancingo, Hidalgo, Mexico
| | - Norberto Chavarría-Hernández
- Cuerpo Académico de Biotecnología Agroalimentaria, Instituto de Ciencias Agropecuarias, Universidad Autónoma del Estado de Hidalgo. Av, Universidad Km 1, Rancho Universitario, C.P. 43600, Tulancingo, Hidalgo, Mexico.
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Mortezaei F, Royan M, Allaf Noveirian H, Babakhani A, Alaie Kordghashlaghi H, Balcázar JL. In vitro assessment of potential probiotic characteristics of indigenous Lactococcus lactis and Weissella oryzae isolates from rainbow trout (Oncorhynchus mykiss Walbaum). J Appl Microbiol 2020; 129:1004-1019. [PMID: 32248610 DOI: 10.1111/jam.14652] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 03/14/2020] [Accepted: 03/26/2020] [Indexed: 12/11/2022]
Abstract
AIM The objective of this study was to evaluate the probiotic potential of lactic acid bacteria (LAB) isolated from the intestinal ecosystem of rainbow trout. METHODS AND RESULTS Among LAB isolates, 10 of them were selected and screened for resistance to acid and bile salts, pancreatin, sodium chloride and temperature, hydrophobicity, growth profile and antimicrobial activity against fish pathogens. Then, biosafety assessments were investigated. Selected LAB tolerated to gastrointestinal physiological conditions, pancreatin and a range of sodium chloride and temperature. They also exhibited hydrophobicity and showed antagonistic activity against Streptococcus iniae and Yersinia ruckeri. Results of 16S rRNA gene sequencing showed that selected LAB belonged to the Lactococcus lactis (n = 5) and Weissella oryzae (n = 5) species. They exhibited no β-haemolytic activity, while six selected LAB were resistant to some antibiotics. None of them harboured virulence factors. CONCLUSIONS This study revealed probiotic characteristics of indigenous LAB isolated from the intestinal ecosystem of rainbow trout. However, further studies are required to confirm the effectiveness of these isolates as probiotics in aquaculture. SIGNIFICANCE AND IMPACT OF THE STUDY To the best of our knowledge, for the first time, the presence of probiotic candidates belonging to W. Oryzae was confirmed in fish intestinal microbiota.
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Affiliation(s)
- F Mortezaei
- Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran
| | - M Royan
- North Region Branch, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Rasht, Iran
| | - H Allaf Noveirian
- Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran
| | - A Babakhani
- Fisheries Department, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran
| | - H Alaie Kordghashlaghi
- North Region Branch, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Rasht, Iran
| | - J L Balcázar
- Catalan Institute for Water Research (ICRA), Girona, Spain.,University of Girona, Girona, Spain
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KANAK EK, YILMAZ SÖ. Maldi-tof mass spectrometry for the identification and detection of antimicrobial activity of lactic acid bacteria isolated from local cheeses. FOOD SCIENCE AND TECHNOLOGY 2019. [DOI: 10.1590/fst.19418] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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