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Tian C, Wang L, Liu M, Liu J, Qiu M, Chen Y. Isolation and Identification of Chicken-Derived Lactic Acid Bacteria: In Vitro Probiotic Properties and Antagonistic Effects against Salmonella pullorum, Staphylococcus aureus, and Escherichia coli. Microorganisms 2024; 12:795. [PMID: 38674739 PMCID: PMC11052321 DOI: 10.3390/microorganisms12040795] [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: 03/09/2024] [Revised: 03/28/2024] [Accepted: 04/08/2024] [Indexed: 04/28/2024] Open
Abstract
The development of probiotics capable of quickly colonizing the intestines of animals is important in promoting the healthy growth of livestock. The aim of this study was to screen lactic acid bacteria (LAB) from the intestinal microbiota of chickens with potential applications, and to evaluate their probiotic properties and antagonistic abilities against Salmonella pullorum, Staphylococcus aureus, and Escherichia coli. The results showed that a total of 79 strains with the characteristics of LAB were isolated from the chicken cecum microbiota, of which 7 strains exhibited strong inhibitory activity against S. pullorum, S. aureus, and E. coli. Performing 16s rDNA sequencing revealed that these seven strains were Lactiplantibacillus pentosus (n = 1), Lactiplantibacillus plantarum (n = 3), Lactiplantibacillus paraplantarum (n = 1), Lactiplantibacillus argentoratensis (n = 1), and Lactiplantibacillus fabifermentans (n = 1). Among them, L. pentosus R26 and L. plantarum R32 exhibited superior antibacterial activity. These two strains demonstrated high lactic acid production ability, with survival rates of 86.29% and 87.99% after 3 h of treatment at pH 1.5, 86.66% and 85.52% after 3 h of treatment with 0.5% bile salts, 90.03% and 88.16% after 2 h of treatment with simulated gastric fluid, and 98.92% and 98.22% after 2 h of treatment with simulated intestinal fluid, respectively. Co-cultivation with L. pentosus R26 for 24 h resulted in 50% of the pathogens being antagonized, while almost complete inhibition was observed following 72 h of co-cultivation. In conclusion, L. pentosus R26 and L. plantarum R32 exhibited high antibacterial activity and acid production capability, while also demonstrating satisfactory tolerance to low pH values and high concentrations of bile salts and digestive fluid. The probiotic characteristics and stress resistance of L. pentosus R26 were slightly superior to those of L. plantarum R32, indicating its potential for development as a probiotic.
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Affiliation(s)
| | | | | | | | | | - Yong Chen
- Xinjiang Key Laboratory of Herbivore Nutrition for Meat & Milk, College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China; (C.T.); (L.W.); (M.L.); (J.L.); (M.Q.)
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Ahmed MBM, El-ssayad MF, Yousef SY, Salem SH. Bee venom: A potential natural alternative to conventional preservatives for prolonging the shelf-life of soft cheese 'Talaga'. Heliyon 2024; 10:e28968. [PMID: 38601605 PMCID: PMC11004823 DOI: 10.1016/j.heliyon.2024.e28968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 03/27/2024] [Accepted: 03/27/2024] [Indexed: 04/12/2024] Open
Abstract
The study aims to explore bee venom (honey-BV) as a potential natural preservative for "Tallaga" soft cheese. Characterization of the active compounds in honey-BV was conducted via chromatographic analyses. Antimicrobial efficacy against pathogenic bacteria and fungi was evaluated, and minimum inhibitory concentration (MIC) was determined. Subsequently, honey-BV was applied to Tallaga cheese at 15 mg/g concentrations. The main active ingredients identified in bee venom were apamin (2%) and melittin (48.7%). Both concentrations of bee venom (100 and 200 mg/mL) exhibited significant antifungal and antibacterial properties against tested organisms, with MIC values varied from 0.2 to 0.5 mg/mL for bacteria to 3-13 mg/mL for fungi. Application of honey-BV in Tallaga cheese resulted in complete elimination of Staphylococcal populations after 2 weeks of cold storage, with no detectable growth of molds or yeasts throughout the storage period. Additionally, a steady decrease in aerobic plate count was observed over time. In summary, honey-BV holds promise as a natural preservative for soft cheese, however, more investigation is required to optimize the concentration for economic viability, taking into account health benefits and safety considerations.
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Affiliation(s)
- Mohamed Bedair M. Ahmed
- Department of Food Toxicology and Contaminants, National Research Centre, 33 El-Bohouth St., P.O. Box: 12622, Dokki, Cairo, Egypt
| | - Mohamed Fathy El-ssayad
- Dairy Sciences Department, National Research Centre, 33 El-Bohouth St., P.O. Box: 12622, Dokki, Cairo, Egypt
| | | | - Salah H. Salem
- Department of Food Toxicology and Contaminants, National Research Centre, 33 El-Bohouth St., P.O. Box: 12622, Dokki, Cairo, Egypt
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Shabbir MAB, Ul-Rahman A, Iftikhar MR, Rasheed M, Maan MK, Sattar A, Ahmad M, Khan FA, Ahmad W, Riaz MI, Aslam HB. Exploring the Interplay of the CRISPR-CAS System with Antibiotic Resistance in Staphylococcus aureus: A Poultry Meat Study from Lahore, Pakistan. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:130. [PMID: 38256391 PMCID: PMC10818619 DOI: 10.3390/medicina60010130] [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: 12/19/2023] [Revised: 01/02/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024]
Abstract
Staphylococcus aureus is one of the major pathogens responsible for causing food poisoning worldwide. The emergence of antibiotic resistance in this bacterium is influenced by various factors. Among them, bacterial acquired defense systems described as clustered regularly interspaced short palindromic repeats (CRISPR)-cas system might be involved in antibiotic resistance development in bacteria. The current study was designed to assess the prevalence of S. aureus and its antibiotic resistance profile and identify the relationship of the CRISPR-cas system with antimicrobial resistance, followed by phylogenetic analysis. Total samples (n = 188) of poultry meat were collected from the poultry bird market of Lahore, Punjab, Pakistan. We used both phenotypic (antibiotic disc diffusion) and genotypic methods (PCR) to identify multi-drug resistant (MDR) strains of S. aureus. Additionally, the role of the CRISPR-Cas system in the isolated MDR S. aureus was also assessed. In addition, real-time quantitative PCR (qRT-PCR) was used to evaluate the association of the CRISPR-cas system with antimicrobial resistance. All of the S. aureus isolates showed 100% resistance against erythromycin, 97.5% were resistant to tetracycline, and 75% were resistant to methicillin. Eleven isolates were MDR in the current study. The CRISPR system was found in all MDR isolates, and fifteen spacers were identified within the CRISPR locus. Furthermore, MDR S. aureus isolates and the standard strain showed higher expression levels of CRISPR-associated genes. The correlation of said system with MDR isolates points to foreign gene acquisition by horizontal transfer. Current knowledge could be utilized to tackle antibiotic-resistant bacteria, mainly S. aureus.
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Affiliation(s)
- Muhammad Abu Bakr Shabbir
- Institute of Microbiology, Faculty of Veterinary Sciences, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan (F.A.K.)
| | - Aziz Ul-Rahman
- Department of Pathobiology and Biomedical Sciences, Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef (MNS) University of Agriculture, Multan 66000, Pakistan;
| | - Muhammad Rizwan Iftikhar
- Institute of Microbiology, Faculty of Veterinary Sciences, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan (F.A.K.)
| | - Majeeda Rasheed
- Department of life Sciences, Khwaja Fareed University of Engineering and Information Technology, Rahim Yar Khan 64200, Pakistan;
| | - Muhammad Kashif Maan
- Department of Veterinary Surgery, Faculty of Veterinary Sciences, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Adeel Sattar
- Department of Pharmacology and Toxicology, Faculty of Biosciences, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Mehmood Ahmad
- Department of Pharmacology and Toxicology, Faculty of Veterinary and Animal Sciences, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan;
| | - Farid Ahmed Khan
- Institute of Microbiology, Faculty of Veterinary Sciences, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan (F.A.K.)
| | - Waqas Ahmad
- Department of Pathology, Faculty of Veterinary Sciences, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan;
| | - Muhammad Ilyas Riaz
- Institute of Microbiology, Faculty of Veterinary Sciences, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan (F.A.K.)
| | - Hassaan Bin Aslam
- Institute of Microbiology, Faculty of Veterinary Sciences, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan (F.A.K.)
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Abdel-Rahman GN, Saleh EM, Hegazy A, Fouzy AS, Embaby MA. Safety improvement of the open sun dried Egyptian Siwi dates using closed solar dryer. Heliyon 2023; 9:e22425. [PMID: 38053903 PMCID: PMC10694329 DOI: 10.1016/j.heliyon.2023.e22425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 11/12/2023] [Accepted: 11/13/2023] [Indexed: 12/07/2023] Open
Abstract
Egyptian Siwi dates dried using the open sun drying is exposed to different contaminants. So, the current study aims to use the closed solar dryer to improve Siwi date safety. The impact of washing and closed solar drying on the levels of microbial load, aflatoxins and heavy metals in Egyptian Siwi dates (ESD), in comparison to traditional open sun drying methods were examined. Two different drying techniques were employed to dry 300 kg of ESD. The microbial load was assessed following the two drying procedures. The levels of aflatoxins and heavy metals were analyzed using High-performance liquid chromatography (HPLC) and Inductively Coupled Plasma (ICP) techniques, respectively, after both drying methods. Additionally, the influence of storage time on the microbial load of the ESD was also evaluated using standard methods. The findings of the current study demonstrated that the closed solar drying significantly reduced the total bacterial and fungal counts by 96 % and 93 %, respectively, when compared to open sun-drying. No aflatoxins were detected in both fresh Siwi dates and Siwi dates dried using closed solar drying. However, after open sun drying, two aflatoxins; aflatoxin B1 (AFB1) and aflatoxin G1 (AFG1), were detected in the ESD, with concentrations of 0.95 and 0.23 μg kg-1, respectively. The closed solar drying significantly decreased the levels of lead (Pb), cadmium (Cd), copper (Cu), nickel (Ni), chromium (Cr), zinc (Zn), manganese (Mn), and iron (Fe) in the dried dates by 96 %, 94 %, 48 %, 71 %, 64 %, 4 %, 26 %, and 7 %, respectively, when compared to open sun drying. The stored Siwi dates that was exposed to the open sun drying showed a higher increase in bacterial (4.86 log CFU/g) and fungal (4.46 log CFU/g) counts. However, the stored Siwi dates that was exposed to the closed solar dryer showed a lower increase in bacterial (3.21 log CFU/g) and fungal (2.51 log CFU/g) counts. So, the duration of storage significantly impacted the microbial loads of the closed solar dried dates as compared to open sun drying. Overall, closed solar drying reduced the levels of investigated contaminants and extended the shelf life of ESD, thereby enhancing their safety for human consumption.
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Affiliation(s)
- Gomaa N. Abdel-Rahman
- Food Toxicology and Contaminants Department, National Research Centre, 12622, Dokki, Giza, Egypt
| | - Essam M. Saleh
- Food Toxicology and Contaminants Department, National Research Centre, 12622, Dokki, Giza, Egypt
| | - Aiat Hegazy
- Solar Energy Department, National Research Centre, 12622, Dokki, Giza, Egypt
| | - Ahmed S.M. Fouzy
- Food Toxicology and Contaminants Department, National Research Centre, 12622, Dokki, Giza, Egypt
| | - Mohamed A. Embaby
- Food Toxicology and Contaminants Department, National Research Centre, 12622, Dokki, Giza, Egypt
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5
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Ali EA, Abo-Salem HM, Arafa AA, Nada AA. Chitosan Schiff base electrospun fabrication and molecular docking assessment for nonleaching antibacterial nanocomposite production. CELLULOSE (LONDON, ENGLAND) 2023; 30:3505-3522. [PMID: 36994234 PMCID: PMC10015525 DOI: 10.1007/s10570-023-05124-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 02/27/2023] [Indexed: 06/19/2023]
Abstract
In this work, new chitosan derivative nanofibers that exhibit antibacterial properties were successfully fabricated. The two CS Schiff base derivatives (CS-APC and CS-2APC) were prepared by incorporating 4-amino antipyrine moiety in two different ratios, followed by a reductive amination to obtain the corresponding derivatives CS-APCR and CS-2APCR. Spectral analyses were used to confirm the chemical structure. The molecular docking evaluation of CS-APC, CS-APCR, and CS was conducted on DNA topoisomerase IV, thymidylate kinase and SARS-CoV-2 main protease (3CLpro) active sites. CS-APCR showed a well-fitting into the three enzyme active sites with docking score values of - 32.76, - 35.43 and - 30.12 kcal/mol, respectively. The nanocomposites of CS derivatives were obtained by electrospinning the blends of CS-2APC and CS-2APCR with polyvinyl pyrrolidone (PVP) at 20 kV. The morphology of the nanofibers was investigated by scanning electron microscopy (SEM). It was found that fiber diameters were significantly decreased when CS-2APC and CS-2APCR were incorporated into pure PVP to reach 206-296 nm and 146-170 nm, respectively, compared to 224-332 nm for pure PVP. The derivatives of CS and their nanofibers with PVP were found to have antibacterial activities against two strains of Staphylococcus aureus and Escherichia coli. Data revealed that CS-2APC nanofibers showed antibacterial activity to the two strains of E. coli less than CS-2APCR nanofibers.
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Affiliation(s)
- Eman AboBakr Ali
- Polymer and Pigment Department, Chemical Industries Research Institute, National Research Centre (Scopus Affiliation ID 60014618), Dokki, Giza, 12622 Egypt
| | - Heba M. Abo-Salem
- Chemistry of Natural Compounds Department, Pharmaceutical and Drug Research Institute, National Research Centre, Dokki, Giza, 12622 Egypt
| | - Amany A. Arafa
- Microbiology and Immunology Department, Veterinary Research Institute, National Research Centre, Dokki, Giza, 12622 Egypt
| | - Ahmed A. Nada
- Pre-treatment and Finishing of Cellulosic Fibers Department, Textile Industries Research Institute, National Research Centre, Dokki, Giza, 12622 Egypt
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The Effect of Triclosan Adaptation on Antimicrobial Resistance among Clinical Escherichia coli Isolates from Egyptian Patients. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.4.64] [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
There is a possible link between exposure to Triclosan (TCS) and changes in antimicrobial susceptibility. The change in the tolerance of clinical Escherichia coli (n=45) isolates to the biocide TCS, changes in antibiotic resistance and differences in the efflux pump mechanism were analyzed. 45 E. coli isolates were obtained. The minimum inhibitory concentration (MIC), the minimum bactericidal concentration (MBC) of TCS, and the expression of four efflux pump encoding genes in antibiotic-resistant isolates were determined before and after TCS adaptation. The number of TCS-tolerant isolates was 11 (24.4%). After adaptation, the percentage of tolerant isolates increased to 42.2% (n=19). A significant change (p<0.05) in antimicrobial resistance of the tested isolates (n=45) before and after TCS adaptation was detected for ceftazidime, ceftriaxone, ertapenem, imipenem, amikacin, gentamicin, tobramycin, ciprofloxacin, levofloxacin and doxycycline. Among the new TCS tolerant isolates (n=8). there was an increase in TCS MIC as well as the MBC after TSC adaptation. The adapted isolates exhibited a significant increase in the expression of mdfA and norE genes (p=<0.001). There is a strong correlation between efflux pump gene overexpression and susceptibility to TCS and other antimicrobials.
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Meshaal AK, Hetta HF, Yahia R, Abualnaja KM, Mansour AT, Al-Kadmy IMS, Alghamdi S, Dablool AS, Emran TB, Sedky H, Batiha GES, El-Kazzaz W. In Vitro Antimicrobial Activity of Medicinal Plant Extracts against Some Bacterial Pathogens Isolated from Raw and Processed Meat. Life (Basel) 2021; 11:life11111178. [PMID: 34833054 PMCID: PMC8620572 DOI: 10.3390/life11111178] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 10/23/2021] [Accepted: 11/01/2021] [Indexed: 12/18/2022] Open
Abstract
Background and aim: The poultry meat and its products are considered ideal media for bacterial growth and spoilage, as they are highly nutritive with a favorable pH. The food industry has focused its attention on a great diversity of plant species as food preservatives. The aim of this study was to investigate the presence of Staphylococcus aureus, Escherichia coli O157: H7, and Klebsiella pneumonia in food samples and to evaluate of the antibacterial activity of some medicinal plant extracts against these bacteria. Methods: Raw and processed meat samples (n = 60) were collected from abattoirs and local markets. S. aureus, E. coli O157: H7, and K. pneumonia were isolated, identified by phenotypic methods, and then confirmed by 16S rRNA gene sequencing. The antibacterial activity and spectrum of essential oils and spices powder of cumin, black seeds, cloves, cinnamon, and marjoram was determined against the isolated strains in this study by microbial count and well-diffusion techniques. Results: A total of 33 isolates have been identified as S. aureus, 30 isolates were identified as E. coli O157: H7, and 15 isolates were identified as K. pneumonia. S. aureus, E. coli O157: H7, and K. pneumonia could be detected in both fresh and processed food with higher prevalence in the processed meat. There was a significant decrease in microbial count in treated samples either with the spices powder or essential oils of the tested medicinal plants compared to control samples during storage time period. Furthermore, while the microbial count increased in the control samples, the microbial count decreased to reach zero in almost all treated samples with essential oils after 15 days of storage. Conclusion: S. aureus, E. coli O157: H7, and K. pneumonia are associated with food from animal sources, in either fresh or processed meat samples. The prevalence of them was higher in the processed meat than in fresh meat. The essential oils and spices powder of cumin, black seeds, cloves, cinnamon, and marjoram have an in vitro wide spectrum antibacterial activity with the highest antibacterial activity for the black seeds.
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Affiliation(s)
- Ahmed Kh. Meshaal
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt;
| | - Helal F. Hetta
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assuit University, Assuit 71515, Egypt
- Correspondence:
| | - Ramadan Yahia
- Department of Microbiology and Immunology, Faculty of Pharmacy, Deraya University, Minia 61512, Egypt;
| | - Khamael M. Abualnaja
- Department of Chemistry, College of Science, Taif University, Taif 21944, Saudi Arabia;
| | - Abdallah Tageldein Mansour
- Animal and Fish Production Department, College of Agricultural and Food Sciences, King Faisal University, Al-Ahsa 31982, Saudi Arabia;
- Fish and Animal Production Department, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria 21531, Egypt
| | - Israa M. S. Al-Kadmy
- Faculty of Science and Engineering, School of Engineering, University of Plymouth, Plymouth PL4 8AA, UK;
- Branch of Biotechnology, Department of Biology, College of Science, Mustansiriyah University, Baghdad 10244, Iraq
| | - Saad Alghamdi
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah 24381, Saudi Arabia;
| | - Anas S. Dablool
- Department of Public Health, Health Sciences College at Al-Leith, Umm Al-Qura University, Makkah 24381, Saudi Arabia;
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong 4381, Bangladesh;
| | - Haitham Sedky
- Department of Microbiology and Immunology, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt;
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhur 22511, Egypt;
| | - Waleed El-Kazzaz
- Molecular Microbiology Lab., Botany Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt;
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Elsawy S, Elsherif WM, Hamed R. Effect of silver nanoparticles on vancomycin resistant Staphylococcus aureus infection in critically ill patients. Pathog Glob Health 2021; 115:315-324. [PMID: 33872131 DOI: 10.1080/20477724.2021.1914412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
A prevalent increase in antimicrobial resistance represents a universal obstacle for the treatment of Staphylococcus aureus (S. aureus) infection, especially in critically ill patients. Silver nanoparticles are defined as broad spectrum bactericidal agents, which might be effective against vancomycin resistant S. aureus (VRSA). In this study, we examined the bactericidal efficacy of silver nanoparticles on VRSA in 150 blood and sputum samples isolated from intensive care patients. Methicillin resistant S. aureus (MRSA) isolates were identified in 83 samples, with an incidence of 55.3%. Meanwhile, VRSA isolates were found in 11 and 8 isolates (a total of 19 isolates out of 150) from sputum and blood samples, with an incidence of 14.67% and 10.67%, respectively, with a total incidence of 12.67%. Vancomycin intermediate S. aureus (VISA) isolates had an inhibitory zone ranging from 9 to 13 mm, which was found in 13 out of 19 isolates, whereas VRSA isolates had an inhibitory zone ranging from 0 to 6 mm, which was detected in 6 out of 19 isolates. The findings of this study confirm that silver nanoparticles are an effective treatment against VRSA.
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Affiliation(s)
- Saeid Elsawy
- Anaesthesia and Intensive Care Department, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Walaa M Elsherif
- Microbiology Department, Nanotechnology Unit, Animal Health Research Institute, Taipei, Egypt
| | - Rasha Hamed
- Anaesthesia and Intensive Care Department, Faculty of Medicine, Assiut University, Assiut, Egypt
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Hetta HF, Kh Meshaal A, Algammal AM, Yahia R, Makharita RR, Marraiki N, Shah MA, Hassan HAM, Batiha GES. In-vitro Antimicrobial Activity of Essential Oils and Spices Powder of some Medicinal Plants Against Bacillus Species Isolated from Raw and Processed Meat. Infect Drug Resist 2020; 13:4367-4378. [PMID: 33304102 PMCID: PMC7723237 DOI: 10.2147/idr.s277295] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 11/11/2020] [Indexed: 11/23/2022] Open
Abstract
Background and Aim Bacillus species are widely distributed microorganisms in nature that are responsible for outbreaks of food poisoning and a common cause of food spoilage. This study aimed to isolate and identify foodborne Bacillus species from meat and to determine the antimicrobial activities of commercial essential oils and spices powder extracted from certain medicinal plants. Methods Sixty meat samples were collected in Assiut city and subdivided into raw meat and processed meat. Bacillus spp were isolated and identified according to their cultural characters, biochemical reactions, serological typing, and 16S rRNA gene sequencing. The antibacterial activity of essential oils and spices powder was measured by using well-diffusion and microbial count techniques. Results The prevalence of Bacillus spp. in the examined raw meat samples and processed meat samples was 13.34%, and 26.67%, respectively. There was a marked decrease in the total Bacillus species count after treatment of minced beef with essential oils and spices powder compared to the untreated one. Black seed oil was the most potent antibacterial essential oil among the tested oils present in this study. Conclusion Essential oils and spices powder of certain medicinal plants (cumin: Cuminum cyminum, black seeds: Nigella sativa, cloves: Syzygium aromaicum, cinnamon: Cinnamomum zeylanicum, and Marjoram: Origanum majorana) have a potential in vitro antimicrobial activity against Bacillus spp. Furthermore, Nigella sativa oil exhibited the most potent antibacterial activity against Bacillus spp.
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Affiliation(s)
- Helal F Hetta
- Department of Internal Medicine, University of Cincinnati, College of Medicine, Cincinnati, OH 45267-0595, USA.,Department of Medical Microbiology and Immunology, Faculty of Medicine, Assuit University, Assuit 71515, Egypt
| | - Ahmed Kh Meshaal
- Department of Botany and Microbiology, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Abdelazeem M Algammal
- Department of Bacteriology, Immunology and Mycology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Ramadan Yahia
- Department of Microbiology and Immunology, Faculty of Pharmacy, Deraya University, Minia, Egypt
| | - Rabab R Makharita
- Biology Department, Faculty of Science and Arts Khulais, University of Jeddah, Jeddah, 21959, Saudi Arabia.,Botany Department, Faculty of Science, Suez Canal University, Ismailia 41522, Egypt
| | - Najat Marraiki
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Muhammad Ajmal Shah
- Department of Pharmacognosy, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Hebat-Allah M Hassan
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assuit University, Assuit 71515, Egypt
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicines, Damanhour University, Damanhour 22511, Egypt
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Orhan-Yanıkan E, da Silva-Janeiro S, Ruiz-Rico M, Jiménez-Belenguer AI, Ayhan K, Barat JM. Essential oils compounds as antimicrobial and antibiofilm agents against strains present in the meat industry. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.02.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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11
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Al-Gamal MS, Ibrahim GA, Sharaf OM, Radwan AA, Dabiza NM, Youssef AM, El-Ssayad MF. The protective potential of selected lactic acid bacteria against the most common contaminants in various types of cheese in Egypt. Heliyon 2019; 5:e01362. [PMID: 30949606 PMCID: PMC6429812 DOI: 10.1016/j.heliyon.2019.e01362] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 02/03/2019] [Accepted: 03/13/2019] [Indexed: 11/29/2022] Open
Abstract
Dairy products, especially cheeses have a great nutritional value and a high consumption level around the world. Considering a widespread consumption of cheeses, there is a growing concern regarding safety and microbiological quality. The current study was designed to conduct a recent evaluation of cheeses microbiological quality. Sixty cheese samples from retailing Egyptian markets were analyzed on different selective microbiological media and 64 bacteria, 35 yeasts and 8 molds were isolated. Out of 60 samples; 26.6% were contaminated with Escherichia coli, 73.3% with Staphylococcus scuiri, 3.33% with Bacillus cereus, 1.66% with Salmonella enterica, and 1.66% with Pseudomonas aeruginosa. The presence of such microorganisms in cheeses referred to the wrong management in cheese manufacturing. These organisms are significant from public health view as they have been associated with the base of human food poisoning. Promising antagonistic behavior was observed using the tested lactic acid bacteria (LAB) either single or in combinations toward the undesired isolates. Lactobacillus helveticus CNRZ 32 (Lb. helveticus) was the most potent culture; recording ≥95% reduction in undesired microbial counts.
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Affiliation(s)
- Mamdouh S Al-Gamal
- Botany and Microbiology Dept., Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt
| | - Gamal A Ibrahim
- Dairy Science Dept., (Dairy Microbiol. Lab.), National Research Centre, 33 El-Bohouth St. (Former El-Tahrir St.) Dokki, Giza, Egypt
| | - Osama M Sharaf
- Dairy Science Dept., (Dairy Microbiol. Lab.), National Research Centre, 33 El-Bohouth St. (Former El-Tahrir St.) Dokki, Giza, Egypt
| | - Ahmed A Radwan
- Botany and Microbiology Dept., Faculty of Science (Boys), Al-Azhar University, Cairo, Egypt
| | - Nadia M Dabiza
- Dairy Science Dept., (Dairy Microbiol. Lab.), National Research Centre, 33 El-Bohouth St. (Former El-Tahrir St.) Dokki, Giza, Egypt
| | - Ahmed M Youssef
- Packing and Packaging Materials Dept., National Research Centre, 33 El-Bohouth St. (Former El-Tahrir St.) Dokki, Giza, Egypt
| | - Mohamed F El-Ssayad
- Dairy Science Dept., (Dairy Microbiol. Lab.), National Research Centre, 33 El-Bohouth St. (Former El-Tahrir St.) Dokki, Giza, Egypt
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12
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Antimicrobial activity of Cannabis sativa, Thuja orientalis and Psidium guajava leaf extracts against methicillin-resistant Staphylococcus aureus. JOURNAL OF INTEGRATIVE MEDICINE-JIM 2018; 16:350-357. [DOI: 10.1016/j.joim.2018.07.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 06/09/2018] [Indexed: 11/21/2022]
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13
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Good Manufacturing Practices and Microbial Contamination Sources in Orange Fleshed Sweet Potato Puree Processing Plant in Kenya. INTERNATIONAL JOURNAL OF FOOD SCIENCE 2018; 2018:4093161. [PMID: 29808161 PMCID: PMC5902010 DOI: 10.1155/2018/4093161] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Accepted: 02/26/2018] [Indexed: 11/17/2022]
Abstract
Limited information exists on the status of hygiene and probable sources of microbial contamination in Orange Fleshed Sweet Potato (OFSP) puree processing. The current study is aimed at determining the level of compliance to Good Manufacturing Practices (GMPs), hygiene, and microbial quality in OFSP puree processing plant in Kenya. Intensive observation and interviews using a structured GMPs checklist, environmental sampling, and microbial analysis by standard microbiological methods were used in data collection. The results indicated low level of compliance to GMPs with an overall compliance score of 58%. Microbial counts on food equipment surfaces, installations, and personnel hands and in packaged OFSP puree were above the recommended microbial safety and quality legal limits. Steaming significantly (P < 0.05) reduced microbial load in OFSP cooked roots but the counts significantly (P < 0.05) increased in the puree due to postprocessing contamination. Total counts, yeasts and molds, Enterobacteriaceae, total coliforms, and E. coli and S. aureus counts in OFSP puree were 8.0, 4.0, 6.6, 5.8, 4.8, and 5.9 log10 cfu/g, respectively. In conclusion, equipment surfaces, personnel hands, and processing water were major sources of contamination in OFSP puree processing and handling. Plant hygiene inspection, environmental monitoring, and food safety trainings are recommended to improve hygiene, microbial quality, and safety of OFSP puree.
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Li H, Zhu J. Targeted metabolic profiling rapidly differentiates Escherichia coli and Staphylococcus aureus at species and strain level. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2017; 31:1669-1676. [PMID: 28776775 DOI: 10.1002/rcm.7949] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 06/21/2017] [Accepted: 07/30/2017] [Indexed: 06/07/2023]
Abstract
RATIONALE Pathogenic foodborne bacteria have been associated with severe infectious disease in humans and animals worldwide. Rapid detection and screening of these foodborne pathogens are critical for our food safety. This study aimed at detecting Escherichia coli and Staphylococcus aureus, two important foodborne bacteria, at the species and strain/serovar level using a mass spectrometry (MS)-based targeted metabolic profiling approach. METHODS Ten E. coli strains (8 out of 10 were foodborne outbreak isolates) and four S. aureus strains were tested at two growth time points. A high-performance liquid chromatography/tandem mass spectrometry (HPLC/MS/MS)-based targeted metabolomics approach was applied for metabolic profile based bacteria detection. A total of 108 metabolites from multiple metabolic pathways were confidently detected from these bacteria. RESULTS Our study demonstrated that with only 4 h of enrichment in the same medium, the metabolic profiles from E. coli and S. aureus showed significant difference. Furthermore, seven out of ten E. coli strains and all four tested S. aureus strains showed strain/serovar-level differentiation at the 4-h time point, which indicated great potential for strain level stratification in future food screening using our MS-based targeted metabolic profiling approach. CONCLUSIONS A targeted metabolomics method was developed to demonstrate the utility of HPLC/MS/MS-based metabolic profiling in rapidly (4 h) differentiating E. coli and S. aureus bacteria, two of the most notorious foodborne bacteria, at both the species and strain/serovar levels. The results indicated that our approach has great potential in the future for fast and specific detection of foodborne pathogenic bacteria based on their metabolic diversity.
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Affiliation(s)
- Haorong Li
- Department of Chemistry and Biochemistry, Miami University, 651 E High St, Oxford, OH, 45056, USA
| | - Jiangjiang Zhu
- Department of Chemistry and Biochemistry, Miami University, 651 E High St, Oxford, OH, 45056, USA
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Md. FRM, Mustafizur R, Md. A, Ms. AB, Sang-Do H. Prevalence of multidrug resistant Staphylococcus aureus in GonoShastho Nagar Hospital, Dhaka, Bangladesh. ACTA ACUST UNITED AC 2017. [DOI: 10.5897/ajmr2016.7952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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16
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El-Shibiny A, El-Sahhar S, Adel M. Phage applications for improving food safety and infection control in Egypt. J Appl Microbiol 2017; 123:556-567. [DOI: 10.1111/jam.13500] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Revised: 05/13/2017] [Accepted: 05/23/2017] [Indexed: 01/21/2023]
Affiliation(s)
- A. El-Shibiny
- Biomedical Sciences; University of Science and Technology; Zewail City of Science and Technology; Giza Egypt
- Faculty of Environmental Agricultural Sciences; Arish University; Arish Egypt
| | - S. El-Sahhar
- Biomedical Sciences; University of Science and Technology; Zewail City of Science and Technology; Giza Egypt
| | - M. Adel
- Biomedical Sciences; University of Science and Technology; Zewail City of Science and Technology; Giza Egypt
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Manohar CM, Kundgar SD, Doble M. Betanin immobilized LDPE as antimicrobial food wrapper. Lebensm Wiss Technol 2017. [DOI: 10.1016/j.lwt.2016.07.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Mechanism of antagonistic effects of Andrographis paniculata methanolic extract against Staphylococcus aureus. ASIAN PAC J TROP MED 2017; 10:685-695. [DOI: 10.1016/j.apjtm.2017.07.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 05/17/2017] [Accepted: 06/23/2017] [Indexed: 11/19/2022] Open
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Rapid quantification of Escherichia coli in food and media using bacteriophage T7 amplification and liquid chromatography-multiple reaction monitoring tandem mass spectrometry. J Biotechnol 2015; 192 Pt A:50-8. [PMID: 25456056 DOI: 10.1016/j.jbiotec.2014.10.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 10/08/2014] [Accepted: 10/13/2014] [Indexed: 11/21/2022]
Abstract
Conventional microbiological assays have been a valuable tool for specific enumeration of indicative bacteria of relevance to food and public health, but these culture-based methods are time-consuming and require tedious biochemical and morphological identification. In this work, we exploit the ability of bacteriophage T7 to specifically infect Escherichia coli and amplify nearly a 100-fold in 1–2 h. Bacteriophage amplification is integrated with liquid chromatography-multiple reaction monitoring tandem mass spectrometry (LC-MRM–MS/MS) for quantitation of phage-specific peptides. Heavy isotopic 15N labeled T7 is introduced as the inoculum phage and internal standard. Quantification is performed by determining the ratio of phage-specific peptides over the internal standard which value is proportional to E. coli numbers. A broad dynamic range of 6-log orders ranging from 3.0 × 10(3) to 3.0 × 10(9) CFU/ml is attained in LB, while between 4.1 × 10(4)–2.7 × 10(9) CFU/ml and 1.9 × 10(3)–3.0 × 10(7) CFU/ml was enumerated respectively in coconut water and apple juice. With this method, viable E. coli are quantified in 4 h with a detection limit of 3.0 × 10(3) CFU/ml, 4.1 × 10(4) CFU/ml and 1.9 × 10(3) CFU/ml in LB, coconut water and apple juice, respectively. This method has potential as a rapid tool for detection of fecal contamination during food bioprocessing and distribution to safeguard public health.
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Kumaraswamy R, Amha YM, Anwar MZ, Henschel A, Rodríguez J, Ahmad F. Molecular analysis for screening human bacterial pathogens in municipal wastewater treatment and reuse. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:11610-11619. [PMID: 25181426 DOI: 10.1021/es502546t] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Effective and sensitive monitoring of human pathogenic bacteria in municipal wastewater treatment is important not only for managing public health risk related to treated wastewater reuse, but also for ensuring proper functioning of the treatment plant. In this study, three different 16S rRNA gene molecular analysis methodologies were employed to screen bacterial pathogens in samples collected at three different stages of an activated sludge plant. Overall bacterial diversity was analyzed using next generation sequencing (NGS) on the Illumina MiSeq platform, as well as PCR-DGGE followed by band sequencing. In addition, a microdiversity analysis was conducted using PCR-DGGE, targeting Escherichia coli. Bioinformatics analysis was performed using QIIME protocol by clustering sequences against the Human Pathogenic Bacteria Database. NGS data were also clustered against the Greengenes database for a genera-level diversity analysis. NGS proved to be the most effective approach screening the sequences of 21 potential human bacterial pathogens, while the E. coli microdiversity analysis yielded one (O157:H7 str. EDL933) out of the two E. coli strains picked up by NGS. Overall diversity using PCR-DGGE did not yield any pathogenic sequence matches even though a number of sequences matched the NGS results. Overall, sequences of Gram-negative pathogens decreased in relative abundance along the treatment train while those of Gram-positive pathogens increased.
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Affiliation(s)
- Rajkumari Kumaraswamy
- Institute Center for Water and Environment (iWATER), Masdar Institute of Science and Technology , P.O. Box 54224, Abu Dhabi, UAE
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Barbosa AAT, Silva de Araújo HG, Matos PN, Carnelossi MAG, Almeida de Castro A. Effects of nisin-incorporated films on the microbiological and physicochemical quality of minimally processed mangoes. Int J Food Microbiol 2013; 164:135-40. [DOI: 10.1016/j.ijfoodmicro.2013.04.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 04/03/2013] [Accepted: 04/06/2013] [Indexed: 10/26/2022]
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