1
|
von Hertwig AM, Prestes FS, Nascimento MS. Comparative evaluation of the effectiveness of alcohol-based sanitizers, UV-C radiation and hot air on three-age Salmonella biofilms. Food Microbiol 2023; 113:104278. [PMID: 37098425 DOI: 10.1016/j.fm.2023.104278] [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: 07/19/2022] [Revised: 03/25/2023] [Accepted: 04/03/2023] [Indexed: 04/27/2023]
Abstract
Dry sanitation is recommended to control contamination and prevent microbial growth and biofilm formation in the low-moisture food manufacturing plants. The objective of this study was to evaluate the effectiveness of dry sanitation protocols on Salmonella three-age biofilms formed on stainless steel (SS) and polypropylene (PP). Biofilms were formed for 24, 48 and 96 h at 37 °C using a cocktail of six Salmonella strains (Muenster, Miami, Glostrup, Javiana, Oranienburg, Yoruba) isolated from the peanut supply chain. Then, the surfaces were exposed to UV-C radiation, hot air (90 °C), 70% ethanol and a commercial product based on isopropyl alcohol for 5, 10, 15 and 30 min. After 30min exposure, on PP the reductions ranged from 3.2 to 4.2 log CFU/cm2 for UV-C, from 2.6 to 3.0 log CFU/cm2 for hot air, from 1.6 to 3.2 log CFU/cm2 for 70% ethanol and from 1.5 to 1.9 log CFU/cm2 for the commercial product. On SS, after the same exposure time, reductions of 1.3-2.2 log CFU/cm2, 2.2 to 3.3 log CFU/cm2, 1.7 to 2.0 log CFU/cm2 and 1.6 to 2.4 log CFU/cm2 were observed for UV-C, hot air, 70% ethanol and commercial product, respectively. UV-C was the only treatment affected by the surface material (p < 0.05) whereas the biofilm age influenced the effectiveness of UV-C and hot air (p < 0.05). For most treatment, there was significant difference among the exposure times (p < 0.05). Overall, the fastest loss in the biofilm viability was noted in the first 5 min, followed by a tail phase. The time predicted by the Weibull model for the first decimal reduction ranged from 0.04 to 9.9 min on PP and from 0.7 to 8.5 min on SS. In addition, the Weibull model indicates that most of treatments (79%) required a long-term exposure time (>30 min) to achieve 3-log reductions of Salmonella biofilms. In summary, UV-C showed the best performance on PP whereas hot air was noted to be the most effective on SS.
Collapse
Affiliation(s)
| | - Flavia S Prestes
- Faculty of Food Engineering, University of Campinas, Campinas, SP, Brazil
| | | |
Collapse
|
2
|
Sharaf M, Sewid AH, Hamouda HI, Elharrif MG, El-Demerdash AS, Alharthi A, Hashim N, Hamad AA, Selim S, Alkhalifah DHM, Hozzein WN, Abdalla M, Saber T. Rhamnolipid-Coated Iron Oxide Nanoparticles as a Novel Multitarget Candidate against Major Foodborne E. coli Serotypes and Methicillin-Resistant S. aureus. Microbiol Spectr 2022; 10:e0025022. [PMID: 35852338 PMCID: PMC9430161 DOI: 10.1128/spectrum.00250-22] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 06/21/2022] [Indexed: 01/28/2023] Open
Abstract
Surface-growing antibiotic-resistant pathogenic bacteria such as Escherichia coli and Staphylococcus aureus are emerging as a global health challenge due to dilemmas in clinical treatment. Furthermore, their pathogenesis, including increasingly serious antimicrobial resistance and biofilm formation, makes them challenging to treat by conventional therapy. Therefore, the development of novel antivirulence strategies will undoubtedly provide a path forward in combatting these resistant bacterial infections. In this regard, we developed novel biosurfactant-coated nanoparticles to combine the antiadhesive/antibiofilm properties of rhamnolipid (RHL)-coated Fe3O4 nanoparticles (NPs) with each of the p-coumaric acid (p-CoA) and gallic acid (GA) antimicrobial drugs by using the most available polymer common coatings (PVA) to expand the range of effective antibacterial drugs, as well as a mechanism for their synergistic effect via a simple method of preparation. Mechanistically, the average size of bare Fe3O4 NPs was ~15 nm, while RHL-coated Fe3O4@PVA@p-CoA/GA was about ~254 nm, with a drop in zeta potential from -18.7 mV to -34.3 mV, which helped increase stability. Our data show that RHL-Fe3O4@PVA@p-CoA/GA biosurfactant NPs can remarkably interfere with bacterial growth and significantly inhibited biofilm formation to more than 50% via downregulating IcaABCD and CsgBAC operons, which are responsible for slime layer formation and curli fimbriae production in S. aureus and E. coli, respectively. The novelty regarding the activity of RHL-Fe3O4@PVA@p-CoA/GA biosurfactant NPs reveals their potential effect as an alternative multitarget antivirulence candidate to minimize infection severity by inhibiting biofilm development. Therefore, they could be used in antibacterial coatings and wound dressings in the future. IMPORTANCE Antimicrobial resistance poses a great threat and challenge to humanity. Therefore, the search for alternative ways to target and eliminate microbes from plant, animal, and marine microorganisms is one of the world's concerns today. Furthermore, the extraordinary capacity of S. aureus and E. coli to resist standard antibacterial drugs is the dilemma of all currently used remedies. Methicillin-resistant S. aureus (MRSA) and vancomycin-resistant S. aureus (VRSA) have become widespread, leading to no remedies being able to treat these threatening pathogens. The most widely recognized serotypes that cause severe foodborne illness are E. coli O157:H7, O26:H11, and O78:H10, and they display increasing antimicrobial resistance rates. Therefore, there is an urgent need for an effective therapy that has dual action to inhibit biofilm formation and decrease bacterial growth. In this study, the synthesized RHL-Fe3O4@PVA@p-CoA/GA biosurfactant NPs have interesting properties, making them excellent candidates for targeted drug delivery by inhibiting bacterial growth and downregulating biofilm-associated IcaABCD and CsgBAC gene loci.
Collapse
Affiliation(s)
- Mohamed Sharaf
- Department of Biochemistry, Faculty of Agriculture, Al-Azhar University, Nasr City, Cairo, Egypt
- Department of Biochemistry and Molecular Biology, College of Marine Life Sciences, Ocean University of China, Qingdao, People’s Republic of China
| | - Alaa H. Sewid
- Department of Microbiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
- Department of Biomedical and Diagnostic Sciences, University of Tennessee, Knoxville, Tennessee, USA
| | - H. I. Hamouda
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
- Processes Design and Development Department, Egyptian Petroleum Research Institute, Nasr City, Cairo, Egypt
| | - Mohamed G. Elharrif
- Department of Basic Medical Sciences, Shaqra University, Shaqraa, Kingdom of Saudi Arabia
| | | | - Afaf Alharthi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
| | - Nada Hashim
- General Practitioner, Faculty of Medicine, University of Gezira, Wad Medani, Sudan
| | - Anas Abdullah Hamad
- Department of Medical Laboratory Techniques, Al Maarif University College, Al Anbar, Ramadi, Iraq
| | - Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, Saudi Arabia
| | - Dalal Hussien M. Alkhalifah
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Wael N. Hozzein
- Botany and Microbiology Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Mohnad Abdalla
- Department of Biotechnology, Faculty of Science and Technology, Shendi University, Shendi, Nher Anile, Sudan
| | - Taisir Saber
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Taif University, Taif, Saudi Arabia
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| |
Collapse
|
3
|
Control Measurements of Escherichia coli Biofilm: A Review. Foods 2022; 11:foods11162469. [PMID: 36010469 PMCID: PMC9407607 DOI: 10.3390/foods11162469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/04/2022] [Accepted: 08/11/2022] [Indexed: 12/05/2022] Open
Abstract
Escherichia coli (E. coli) is a common pathogen that causes diarrhea in humans and animals. In particular, E. coli can easily form biofilm on the surface of living or non-living carriers, which can lead to the cross-contamination of food. This review mainly summarizes the formation process of E. coli biofilm, the prevalence of biofilm in the food industry, and inhibition methods of E. coli biofilm, including chemical and physical methods, and inhibition by bioactive extracts from plants and animals. This review aims to provide a basis for the prevention and control of E. coli biofilm in the food industry.
Collapse
|
4
|
Evaluation of gallic acid on membrane damage of Yersinia enterocolitica and its application as a food preservative in pork. Int J Food Microbiol 2022; 374:109720. [DOI: 10.1016/j.ijfoodmicro.2022.109720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/04/2022] [Accepted: 05/09/2022] [Indexed: 11/22/2022]
|
5
|
von Hertwig AM, Prestes FS, Nascimento MS. Biofilm formation and resistance to sanitizers by Salmonella spp. Isolated from the peanut supply chain. Food Res Int 2022; 152:110882. [DOI: 10.1016/j.foodres.2021.110882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 12/02/2021] [Accepted: 12/04/2021] [Indexed: 11/04/2022]
|
6
|
Mohammed AN, Radi AM, Khaled R, Abo El-Ela FI, Kotp AA. Exploitation of new approach to control of environmental pathogenic bacteria causing bovine clinical mastitis using novel anti-biofilm nanocomposite. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:42791-42805. [PMID: 32725561 DOI: 10.1007/s11356-020-10054-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
New approaches are required for prevention and control of biofilm-producing bacteria and consequently mitigating the health problems of bovine clinical mastitis. This work designed to determine prevalence rates of biofilm-producing bacteria that causing bovine clinical mastitis and evaluate the anti-biofilm effectiveness of novel nanocomposite of zinc-aluminum layered double hydroxide intercalated with gallic acid (GA) as chelating agent (Zn-Al LDH/GA) on the prevention and control of environmental pathogenic bacteria; Escherichia coli (E. coli), Klebsiella pneumoniae (K. pneumoniae), Staphylococcus aureus (S. aureus), and Coagulase-negative staphylococci (CNS), besides Listeria monocytogenes (L. monocytogenes) and assess the ability to use as an antimicrobial agent, and/or sanitizer for milking equipment. All samples (n = 230) involved clinical mastitis cow's milk (n = 50) beside environmental samples (n = 180) were collected then examined for isolation and identification of bacterial pathogens. Zn-Al LDH/GA nanocomposite was synthesized using co-precipitation method, then characterized by Fourier-transform infrared spectroscopy (FT-IR); X-ray diffraction (XRD); field emission scanning electron microscopy (FESEM); high-resolution transmission electron microscopy (HRTEM); thermogravimetric analysis (TGA); differential thermal analysis (DTA); zeta potential; DLS analysis; and Brunauer, Emmett, and Teller (BET) surface area. The anti-biofilm activity of nanocomposite against mastitis-causing bacteria was detected using the broth micro-dilution and disc-diffusion assay. Results, the minimum concentration of Zn-Al LDH/GA that inhibited the growth of gram-positive and negative bacteria, were 312-625 and 5000 μg/mL, respectively. The LD50 of Zn-Al LDH/GA was determined in mice at 1983.3 mg/kg b.wt. As a conclusion, Zn-Al LDH/GA nanocomposite proved its efficiency as an antimicrobial agent and/or sanitizer used for cleaning of milking equipment, due to it could inhibit the growth and multiplication of potentially pathogenic bacteria that causing clinical mastitis and its formation of biofilm on the milking equipment. Zn-Al LDH/GA was found to use under varying pH conditions compared with other commercial sanitizer used besides the formation of nanocomposite increases the material stability.
Collapse
Affiliation(s)
- Asmaa N Mohammed
- Department of Hygiene, Zoonoses and Epidemiology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt.
| | - Abeer M Radi
- Department of Pharmacology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Rehab Khaled
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| | - Fatma I Abo El-Ela
- Department of Pharmacology, Faculty of Veterinary Medicine, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Amna A Kotp
- Department of Chemistry, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
| |
Collapse
|
7
|
de Oliveira AM, de Abreu Filho BA, de Jesus Bassetti F, Bergamasco R, Gomes RG. Natural Extract of Moringa oleifera Leaves Promoting Control of Staphylococcus aureus strains biofilm on PVC surface. FOOD BIOPROCESS TECH 2020. [DOI: 10.1007/s11947-020-02521-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
8
|
Alonso VPP, Harada AMM, Kabuki DY. Competitive and/or Cooperative Interactions of Listeria monocytogenes With Bacillus cereus in Dual-Species Biofilm Formation. Front Microbiol 2020; 11:177. [PMID: 32184763 PMCID: PMC7058548 DOI: 10.3389/fmicb.2020.00177] [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: 09/27/2019] [Accepted: 01/24/2020] [Indexed: 12/12/2022] Open
Abstract
Microorganisms in dairy industries can form monospecies, dual-species, or multispecies biofilms, showing cooperative or competitive behaviors, which might contribute to the reduction of efficiency of cleaning and sanitization processes and eventually turn into a potential source of contamination. This study proposes to evaluate the behavior of Listeria monocytogenes in monospecies biofilms, cocultured with Bacillus cereus. The isolates were of dairy origin, and the selection occurred after studies of competition among species. The biofilm formations on AISI 304 stainless steel at 25°C in a stationary culture were analyzed to observe the cooperative or competitive interactions among species, as well as the effect of pre-adhered cells. Biofilm formation assays were performed in four experiments: Experiment 1: in the presence of strains of antagonistic substance producer B. cereus (+); Experiment 2: extract of the antagonistic substance of B. cereus; Experiment 3: pre-adhered cells of B. cereus; and Experiment 4: pre-adhered cells of L. monocytogenes. Subsequently, cooperative behavior was observed by scanning electron microscopy. The L. monocytogenes monospecies biofilm counts of greater than 5 log colony-forming units (CFU)/cm2 were also observed in dual-species biofilms in the presence of B. cereus (non-producers of antagonist substance), showing cooperative behavior between species. However, in the presence of antagonistic substance produced by B. cereus, the counts were lower, 1.39 and 1.70 log CFU/cm2 (p > 0.05), indicating that the antagonistic substance contributes to competitive interactions. These data are relevant for the development of new studies to control L. monocytogenes in the dairy industry.
Collapse
Affiliation(s)
| | | | - Dirce Yorika Kabuki
- Department of Food Science, Faculty of Food Engineering, University of Campinas, Campinas, Brazil
| |
Collapse
|
9
|
Silveira FMR, Baptista ATA, Dutra TV, de Abreu Filho BA, Gomes RG, Bergamasco R. Application of Moringa oleifera Lam. fractionated proteins for inactivation of Escherichia coli from water. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 81:265-273. [PMID: 32333659 DOI: 10.2166/wst.2020.094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Chemical products traditionally used in the disinfection of water bodies often pose human health risks. For this reason, studies on natural coagulants such as Moringa oleifera Lam. represent an alternative for the inactivation of pathogenic microorganisms, among which is Escherichia coli. This study evaluated the effect of different concentrations of coagulants obtained from Moringa seed extracts and their protein fractions in the inactivation of E. coli during the coagulation/flocculation process. The coagulants studied were the aqueous extract, saline extract and protein fractions albumin and globulin, highlighting that the protein fractions were more effective on inactivating E. coli. The protein fraction globulin at a concentration of 10.0 mg L-1 showed bactericidal effects against E. coli within 18 min, whereas the albumin showed a bacteriostatic effect within 48 min because it isolated colonies in the sediment sample.
Collapse
Affiliation(s)
| | | | - Tatiane V Dutra
- Department of Basic Health Sciences, State University of Maringá, Paraná, Brazil
| | | | - Raquel G Gomes
- Department of Food Engineering, State University of Maringá, Paraná, Brazil
| | - Rosângela Bergamasco
- Department of Chemical Engineering, State University of Maringá, Paraná, Brazil and Colombo Avenue 5790, University of Maringá, Brazil E-mail:
| |
Collapse
|
10
|
Liu L, Ye C, Soteyome T, Zhao X, Xia J, Xu W, Mao Y, Peng R, Chen J, Xu Z, Shirtliff ME, Harro JM. Inhibitory effects of two types of food additives on biofilm formation by foodborne pathogens. Microbiologyopen 2019; 8:e00853. [PMID: 31179649 PMCID: PMC6741122 DOI: 10.1002/mbo3.853] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Revised: 04/05/2019] [Accepted: 04/15/2019] [Indexed: 12/30/2022] Open
Abstract
The inhibition of microbial biofilms is a significant concern in food safety. In the present study, the inhibitory effect of sodium citrate and cinnamic aldehyde on biofilm formation at minimum inhibitory concentrations (MICs) and sub-MICs was investigated for Escherichia coli O157:H7 and Staphylococcus aureus. The biofilm inhibition rate was measured to evaluate the effect of sodium citrate on S. aureus biofilms at 24, 48, 72, and 96 hr. According to the results, an antibiofilm effect was shown by both food additives, with 10 mg/ml of sodium citrate exhibiting the greatest inhibition of S. aureus biofilms at 24 hr (inhibition rate as high as 77.51%). These findings strongly suggest that sodium citrate exhibits a pronounced inhibitory effect on biofilm formation with great potential in the extension of food preservation and storage.
Collapse
Affiliation(s)
- Liyan Liu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product SafetySouth China University of TechnologyGuangzhouChina
| | - Congxiu Ye
- Department of Dermato‐VenereologyThird Affiliated Hospital of Sun Yat‐sen UniversityGuangzhouChina
| | - Thanapop Soteyome
- Home Economics TechnologyRajamangala University of Technology Phra NakhonBangkokThailand
| | - Xihong Zhao
- Research Center for Environmental Ecology and Engineering, School of Environmental Ecology and Biological EngineeringWuhan Institute of TechnologyWuhanChina
| | - Jing Xia
- Research Center for Environmental Ecology and Engineering, School of Environmental Ecology and Biological EngineeringWuhan Institute of TechnologyWuhanChina
| | - Wenyi Xu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product SafetySouth China University of TechnologyGuangzhouChina
| | - Yuzhu Mao
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product SafetySouth China University of TechnologyGuangzhouChina
| | - Ruixin Peng
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product SafetySouth China University of TechnologyGuangzhouChina
| | - Jinxuan Chen
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product SafetySouth China University of TechnologyGuangzhouChina
| | - Zhenbo Xu
- School of Food Science and Engineering, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product SafetySouth China University of TechnologyGuangzhouChina
- Home Economics TechnologyRajamangala University of Technology Phra NakhonBangkokThailand
- Department of Microbial Pathogenesis, School of DentistryUniversity of MarylandBaltimoreMaryland
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center)GuangzhouChina
| | - Mark E. Shirtliff
- Department of Microbial Pathogenesis, School of DentistryUniversity of MarylandBaltimoreMaryland
| | - Janette M. Harro
- Department of Microbial Pathogenesis, School of DentistryUniversity of MarylandBaltimoreMaryland
| |
Collapse
|
11
|
Liu J, Yu S, Han B, Chen J. Effects of benzalkonium chloride and ethanol on dual-species biofilms of Serratia liquefaciens S1 and Shewanella putrefaciens S4. Food Control 2017. [DOI: 10.1016/j.foodcont.2017.02.063] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
12
|
Tsai FH, Chiang PY, Kitamura Y, Kokawa M, Khalid N. Preparation and physical property assessments of liquid-core hydrogel beads loaded with burdock leaf extract. RSC Adv 2016. [DOI: 10.1039/c6ra13843h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Secondary gelation is an important but overlooked element which has a significant impact on the quality of liquid-core hydrogel beads (LHB).
Collapse
Affiliation(s)
- Fu-Hsuan Tsai
- Department of Food Science and Biotechnology
- National Chung Hsing University
- Taichung 40227
- Republic of China
- Graduate School of Life and Environmental Sciences
| | - Po-Yuan Chiang
- Department of Food Science and Biotechnology
- National Chung Hsing University
- Taichung 40227
- Republic of China
| | - Yutaka Kitamura
- Faculty of Life and Environmental Sciences
- University of Tsukuba
- Tsukuba
- Japan
| | - Mito Kokawa
- Faculty of Life and Environmental Sciences
- University of Tsukuba
- Tsukuba
- Japan
| | - Nauman Khalid
- The Alliance for Research on North Africa
- University of Tsukuba
- Tsukuba
- Japan
| |
Collapse
|
13
|
Shao D, Li J, Li J, Tang R, Liu L, Shi J, Huang Q, Yang H. Inhibition of Gallic Acid on the Growth and Biofilm Formation of Escherichia coli and Streptococcus mutans. J Food Sci 2015; 80:M1299-305. [PMID: 25974286 DOI: 10.1111/1750-3841.12902] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2014] [Accepted: 04/15/2015] [Indexed: 11/30/2022]
Abstract
New strategies for biofilm inhibition are becoming highly necessary because of the concerns to synthetic additives. As gallic acid (GA) is a hydrolysated natural product of tannin in Chinese gall, this research studied the effects of GA on the growth and biofilm formation of bacteria (Escherichia coli [Gram-negative] and Streptococcus mutans [Gram-positive]) under different conditions, such as nutrient levels, temperatures (25 and 37 °C) and incubation times (24 and 48 h). The minimum antimicrobial concentration of GA against the two pathogenic organisms was determined as 8 mg/mL. GA significantly affected the growth curves of both test strains at 25 and 37 °C. The nutrient level, temperature, and treatment time influenced the inhibition activity of GA on both growth and biofim formation of tested pathogens. The inhibition effect of GA on biofilm could be due to other factors in addition to the antibacterial effect. Overall, GA was most effective against cultures incubated at 37 °C for 24 h and at 25 °C for 48 h in various concentrations of nutrients and in vegetable wash waters, which indicated the potential of GA as emergent sources of biofilm control products.
Collapse
Affiliation(s)
- Dongyan Shao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical Univ, 127 Youyi Xilu, Xi'an, Shaanxi, 710072, China
| | - Jing Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical Univ, 127 Youyi Xilu, Xi'an, Shaanxi, 710072, China
| | - Ji Li
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical Univ, 127 Youyi Xilu, Xi'an, Shaanxi, 710072, China
| | - Ruihua Tang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical Univ, 127 Youyi Xilu, Xi'an, Shaanxi, 710072, China
| | - Liu Liu
- College of Food Engineering and Nutritional Science, Shaanxi Normal Univ, 620 Western Changan Street, Xi'an, Shaanxi, 710062, China
| | - Junling Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical Univ, 127 Youyi Xilu, Xi'an, Shaanxi, 710072, China
| | - Qingsheng Huang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical Univ, 127 Youyi Xilu, Xi'an, Shaanxi, 710072, China
| | - Hui Yang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical Univ, 127 Youyi Xilu, Xi'an, Shaanxi, 710072, China
| |
Collapse
|
14
|
da Silva Fernandes M, Kabuki DY, Kuaye AY. Biofilms of Enterococcus faecalis and Enterococcus faecium isolated from the processing of ricotta and the control of these pathogens through cleaning and sanitization procedures. Int J Food Microbiol 2015; 200:97-103. [DOI: 10.1016/j.ijfoodmicro.2015.02.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 10/08/2014] [Accepted: 02/03/2015] [Indexed: 10/24/2022]
|
15
|
da Silva Fernandes M, Kabuki DY, Kuaye AY. Behavior of Listeria monocytogenes in a multi-species biofilm with Enterococcus faecalis and Enterococcus faecium and control through sanitation procedures. Int J Food Microbiol 2015; 200:5-12. [PMID: 25655573 DOI: 10.1016/j.ijfoodmicro.2015.01.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 11/25/2014] [Accepted: 01/02/2015] [Indexed: 11/30/2022]
Abstract
The formation of mono-species biofilm (Listeria monocytogenes) and multi-species biofilms (Enterococcus faecium, Enterococcus faecalis, and L. monocytogenes) was evaluated. In addition, the effectiveness of sanitation procedures for the control of the multi-species biofilm also was evaluated. The biofilms were grown on stainless steel coupons at various incubation temperatures (7, 25 and 39°C) and contact times (0, 1, 2, 4, 6 and 8 days). In all tests, at 7°C, the microbial counts were below 0.4 log CFU/cm(2) and not characteristic of biofilms. In mono-species biofilm, the counts of L. monocytogenes after 8 days of contact were 4.1 and 2.8 log CFU/cm(2) at 25 and 39°C, respectively. In the multi-species biofilms, Enterococcus spp. were present at counts of 8 log CFU/cm(2) at 25 and 39°C after 8 days of contact. However, the L. monocytogenes in multi-species biofilms was significantly affected by the presence of Enterococcus spp. and by temperature. At 25°C, the growth of L. monocytogenes biofilms was favored in multi-species cultures, with counts above 6 log CFU/cm(2) after 8 days of contact. In contrast, at 39°C, a negative effect was observed for L. monocytogenes biofilm growth in mixed cultures, with a significant reduction in counts over time and values below 0.4 log CFU/cm(2) starting at day 4. Anionic tensioactive cleaning complemented with another procedure (acid cleaning, disinfection or acid cleaning+disinfection) eliminated the multi-species biofilms under all conditions tested (counts of all micro-organisms<0.4 log CFU/cm(2)). Peracetic acid was the most effective disinfectant, eliminating the multi-species biofilms under all tested conditions (counts of the all microorganisms <0.4 log CFU/cm(2)). In contrast, biguanide was the least effective disinfectant, failing to eliminate biofilms under all the test conditions.
Collapse
|
16
|
Enterotoxigenic profile, antimicrobial susceptibility, and biofilm formation of Bacillus cereus isolated from ricotta processing. Int Dairy J 2014. [DOI: 10.1016/j.idairyj.2014.03.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|