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Dewi G, Manjankattil S, Peichel C, Johnson TJ, Noll S, Cardona C, Kollanoor Johny A. Combination of autochthonous Lactobacillus strains and trans-Cinnamaldehyde in water reduces Salmonella Heidelberg in turkey poults. Front Microbiol 2024; 15:1337428. [PMID: 38511002 PMCID: PMC10951058 DOI: 10.3389/fmicb.2024.1337428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/24/2024] [Indexed: 03/22/2024] Open
Abstract
Reducing the colonization of Salmonella in turkeys is critical to mitigating the risk of its contamination at later stages of production. Given the increased susceptibility of newly hatched poults to Salmonella colonization, it is crucial to implement interventions that target potential transmission routes, including drinking water. As no individual intervention explored to date is known to eliminate Salmonella, the United States Department of Agriculture-Food Safety Inspection Service (USDA-FSIS) recommends employing multiple hurdles to achieve a more meaningful reduction and minimize the potential emergence of resistance. Probiotics and plant-derived antimicrobials (PDAs) have demonstrated efficacy as interventions against Salmonella in poultry. Therefore, this study aimed to investigate the use of turkey-derived Lactobacillus probiotics (LB; a mixture of Lactobacillus salivarius UMNPBX2 and L. ingluviei UMNPBX19 isolated from turkey ileum) and a PDA, trans-cinnamaldehyde (TC), alone and in combination (CO), against S. Heidelberg in turkey drinking water and poults. The presence of 5% nutrient broth or cecal contents as contaminants in water resulted in S. Heidelberg growth. TC eliminated S. Heidelberg, regardless of the contaminants present. In contrast, the cecal contents led to increased survival of Lactobacillus in the CO group. Unlike TC, LB was most effective against S. Heidelberg when the nutrient broth was present, suggesting the role of secondary metabolites in its mechanism of action. In the experiments with poults, individual TC and LB supplementation reduced cecal S. Heidelberg in challenged poults by 1.2- and 1.7-log10 colony-forming units (CFU)/g cecal contents, respectively. Their combination yielded an additive effect, reducing S. Heidelberg by 2.7 log10 CFU/g of cecal contents compared to the control (p ≤ 0.05). However, the impact of TC and LB on the translocation of S. Heidelberg to the liver was more significant than CO. TC and LB are effective preharvest interventions against S. Heidelberg in poultry production. Nonetheless, further investigations are needed to determine the optimum application method and its efficacy in adult turkeys.
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Affiliation(s)
- Grace Dewi
- Department of Animal Science, University of Minnesota, Saint Paul, MN, United States
| | | | - Claire Peichel
- Department of Animal Science, University of Minnesota, Saint Paul, MN, United States
| | - Timothy J. Johnson
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Saint Paul, MN, United States
| | - Sally Noll
- Department of Animal Science, University of Minnesota, Saint Paul, MN, United States
| | - Carol Cardona
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Saint Paul, MN, United States
| | - Anup Kollanoor Johny
- Department of Animal Science, University of Minnesota, Saint Paul, MN, United States
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Manjankattil S, Dewi G, Peichel C, Creek M, Bina P, Cox R, Noll S, Kollanoor Johny A. Effect of pimenta essential oil against Salmonella Agona and Salmonella Saintpaul in ground turkey meat and nonprocessed turkey breast meat. Poult Sci 2024; 103:103279. [PMID: 38100945 PMCID: PMC10764266 DOI: 10.1016/j.psj.2023.103279] [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: 06/28/2023] [Revised: 11/07/2023] [Accepted: 11/12/2023] [Indexed: 12/17/2023] Open
Abstract
Salmonella enterica Agona (S. Agona) and Salmonella enterica Saintpaul (S. Saintpaul) are among the emerging drug-resistant Salmonella in turkey production and processing. Rapid solutions to control emerging and uncommon serotypes such as S. Agona and S. Saintpaul are needed. This study tested pimenta essential oil (PEO) as a processing antibacterial against S. Agona and S. Saintpaul in experiments representative of different stages of turkey processing. The compound effectively reduced S. Agona and S. Saintpaul in nutrient broth studies and with mature biofilm assays. PEO was tested against a combination of S. Agona and S. Saintpaul in ground turkey meat and nonprocessed breast meat. In the first experiment with ground turkey, samples were inoculated with a mixture of S. Agona and S. Saintpaul (∼3 log10 CFU/g) and treated with PEO at different concentrations (0% PEO, 0.25% PEO, 0.5% PEO, 1% PEO, 2% PEO, and 2.5% PEO). In the second experiment with turkey breast, samples inoculated with ∼3 log10 CFU/g (SA+SP) were dipped in different concentrations of PEO with chitosan (CN) for 2 min. In both these experiments, samples were stored at 4°C, and Salmonella recovery was carried out at 0, 1, 3, 5, and 7 d. All experiments followed a completely randomized design and were repeated 6 times (n = 6). Statistical analysis was done using the PROC-ANOVA procedure of SAS. In the ground turkey meat, PEO at or above 2% reduced 2 log10 CFU/g of Salmonella by day 1. PEO at 2.5% in ground turkey meat resulted in enrichment-negative samples by 1 min, indicative of the rapid killing effect of the compound at a high concentration of PEO (P ≤ 0.05). A maximum reduction of 1.7 log10 CFU Salmonella/g of turkey breast meat was obtained after 2 min of dip treatment containing CN and 2.5% PEO. Results indicate that PEO could be used as a plant-based processing antibacterial against S. Agona and S. Saintpaul in turkey processing. Upscaling to plant-level studies is necessary before recommending its usage.
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Affiliation(s)
| | - Grace Dewi
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Claire Peichel
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Medora Creek
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Peter Bina
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Ryan Cox
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Sally Noll
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Anup Kollanoor Johny
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA.
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Vepštaitė-Monstavičė I, Ravoitytė B, Būdienė J, Valys A, Lukša J, Servienė E. Essential Oils of Mentha arvensis and Cinnamomum cassia Exhibit Distinct Antibacterial Activity at Different Temperatures In Vitro and on Chicken Skin. Foods 2023; 12:3938. [PMID: 37959057 PMCID: PMC10647671 DOI: 10.3390/foods12213938] [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: 10/06/2023] [Revised: 10/23/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
The bacterial contamination of meat is a global concern, especially for the risk of Salmonella infection that can lead to health issues. Artificial antibacterial compounds used to preserve fresh meat can have negative health effects. We investigated the potential of natural essential oils (EOs), namely Mentha arvensis (mint) and Cinnamomum cassia (cinnamon) EOs, to prevent contamination of the food pathogen, Salmonella enterica subsp. enterica serotype Typhimurium, in vitro and on chicken skin. The gas chromatography-mass spectrometry (GC-MS) technique was used to determine the compositions of mint EO (MEO) and cinnamon EO (CEO); the most abundant compound in MEO was menthol (68.61%), and the most abundant compound was cinnamaldehyde (83.32%) in CEO. The antibacterial activity of MEO and CEO were examined in vapor and direct contact with S. typhimurium at temperatures of 4 °C, 25 °C, and 37 °C. The minimal inhibitory concentration at 37 °C for MEO and CEO reached 20.83 µL/mL, and the minimal bactericidal concentration of CEO was the same, while for MEO, it was two-fold higher. We report that in most tested conditions in experiments performed in vitro and on chicken skin, CEO exhibits a stronger antibacterial effect than MEO. In the vapor phase, MEO was more effective against S. typhimurium than CEO at 4 °C. In direct contact, the growth of S. typhimurium was inhibited more efficiently by MEO than CEO at small concentrations and a longer exposure time at 37 °C. The exploration of CEO and MEO employment for the inhibition of Salmonella bacteria at different temperatures and conditions expands the possibilities of developing more environment- and consumer-friendly antibacterial protection for raw meat.
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Affiliation(s)
| | - Bazilė Ravoitytė
- Laboratory of Genetics, Nature Research Centre, 08412 Vilnius, Lithuania; (I.V.-M.); (A.V.); (J.L.)
| | - Jurga Būdienė
- Laboratory of Chemical and Behavioural Ecology, Nature Research Centre, 08412 Vilnius, Lithuania;
| | - Algirdas Valys
- Laboratory of Genetics, Nature Research Centre, 08412 Vilnius, Lithuania; (I.V.-M.); (A.V.); (J.L.)
| | - Juliana Lukša
- Laboratory of Genetics, Nature Research Centre, 08412 Vilnius, Lithuania; (I.V.-M.); (A.V.); (J.L.)
| | - Elena Servienė
- Laboratory of Genetics, Nature Research Centre, 08412 Vilnius, Lithuania; (I.V.-M.); (A.V.); (J.L.)
- Department of Chemistry and Bioengineering, Vilnius Gediminas Technical University, 10223 Vilnius, Lithuania
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Nair DVT, Manjankattil S, Peichel C, Martin W, Donoghue AM, Venkitanarayanan K, Kollanoor Johny A. Effect of plant-derived antimicrobials, eugenol, carvacrol, and β-resorcylic acid against Salmonella on organic chicken wings and carcasses. Poult Sci 2023; 102:102886. [PMID: 37517363 PMCID: PMC10400966 DOI: 10.1016/j.psj.2023.102886] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 08/01/2023] Open
Abstract
Organic poultry constitutes a sizeable segment of the American organic commodities market. However, processors have limited strategies that are safe, effective, and approved for improving the microbiological safety of products. In this study, the efficacy of 3 plant-derived antimicrobials (PDAs), eugenol (EG), carvacrol (CR), and β-resorcylic acid (BR) was evaluated against Salmonella on organic chicken wings and carcasses. Wings inoculated with Salmonella (6 log10 CFU/wing) were treated with or without the treatments (BR [0.5%, 1% w/v], EG [0.5%, 1% v/v], CR [0.5%, 1% v/v], chlorine [CL; 200 ppm v/v], or peracetic acid [PA; 200 ppm v/v]) applied for 2 min at 54°C (scalding study) or 30 min at 4°C (chilling study). Homogenates and treatment water were evaluated for surviving Salmonella. Six wings or carcasses per treatment were analyzed in each study. All treatments, except CL and 0.5% BR in the scalding study, yielded significant reductions of Salmonella on wings compared to the positive control (PC-Salmonella inoculated samples not treated with antimicrobials). To follow, carcasses inoculated with Salmonella (higher inoculum [106 CFU/carcass] or lower inoculum [104 CFU/carcass]) and immersed in antimicrobials (CR 1% [v/v] and industry controls [CL {200 ppm}, or PA [200 ppm]) for 30 min at 4°C were stored until analysis. For the higher inoculum study, 1% CR resulted in a 3.9 log10 CFU/g reduction of Salmonella on the carcass on d 0 compared to PC (P < 0.05); however, CL yielded no reduction. On d 3, CR and PA resulted in 0.9 and 1.2 log10 CFU/g reduction of Salmonella, respectively (P < 0.05). For the lower inoculum study, consistent Salmonella reductions were obtained with CR and PA (1.4-2.1 log10 CFU/g) on d 0 and 7. High reductions of Salmonella in processing water were obtained in all studies. CR effectively controls Salmonella on wings and carcasses and in processing water immediately after application. Follow-up studies on the organoleptic characteristics of PDA-treated chicken carcasses are necessary.
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Affiliation(s)
- Divek V T Nair
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | | | - Claire Peichel
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Wayne Martin
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Annie M Donoghue
- Poultry Production and Product Safety Research, University of Arkansas, Fayetteville, AR 72701, USA
| | | | - Anup Kollanoor Johny
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA.
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Roy PK, Ha AJW, Nahar S, Hossain MI, Ashrafudoulla M, Toushik SH, Mizan MFR, Kang I, Ha SD. Inhibitory effects of vorinostat (SAHA) against food-borne pathogen Salmonella enterica serotype Kentucky mixed culture biofilm with virulence and quorum-sensing relative expression. BIOFOULING 2023; 39:617-628. [PMID: 37580896 DOI: 10.1080/08927014.2023.2242263] [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: 12/21/2022] [Revised: 07/18/2023] [Accepted: 07/24/2023] [Indexed: 08/16/2023]
Abstract
Salmonella is a food-borne microorganism that is also a zoonotic bacterial hazard in the food sector. This study determined how well a mixed culture of Salmonella Kentucky formed biofilms on plastic (PLA), silicon rubber (SR), rubber gloves (RG), chicken skin and eggshell surfaces. In vitro interactions between the histone deacetylase inhibitor-vorinostat (SAHA)-and S. enterica serotype Kentucky were examined utilizing biofilms. The minimum inhibitory concentration (MIC) of SAHA was 120 µg mL-1. The addition of sub-MIC (60 µg mL-1) of SAHA decreased biofilm formation for 24 h on PLA, SR, RG, Chicken skin, and eggshell by 3.98, 3.84, 4.11, 2.86 and 3.01 log (p < 0.05), respectively. In addition, the initial rate of bacterial biofilm formation was higher on chicken skin than on other surfaces, but the inhibitory effect was reduced. Consistent with this conclusion, virulence genes expression (avrA, rpoS and hilA) and quorum-sensing (QS) gene (luxS) was considerably downregulated at sub-MIC of SAHA. SAHA has potential as an anti-biofilm agent against S. enterica serotype Kentucky biofilm, mostly by inhibiting virulence and quorum-sensing gene expression, proving the histone deacetylase inhibitor could be used to control food-borne biofilms in the food industry.
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Affiliation(s)
- Pantu Kumar Roy
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
- Department of Seafood Science and Technology, Institute of Marine Industry, Gyeongsang National University, Tongyeong, Republic of Korea
| | - Angela Ji-Won Ha
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Shamsun Nahar
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Md Iqbal Hossain
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Md Ashrafudoulla
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Sazzad Hossen Toushik
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Md Furkanur Rahaman Mizan
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
| | - Iksoon Kang
- Department of Animal Science, College of Agriculture, Food and Environmental Science, CA Polytechnic State University, San Luis Obispo, California, USA
| | - Sang-Do Ha
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Gyeonggi-do, Republic of Korea
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Sielski Galvão Soares L, Casella T, Kawagoe EK, Benetti Filho V, Omori WP, Nogueira MCL, Wagner G, Rodrigues de Oliveira R, Stahlhofer SR, Antunes Ferreira F, Tondo EC, De Dea Lindner J. Phenotypic and genotypic characterization of antibiotic resistance of Salmonella Heidelberg in the south of Brazil. Int J Food Microbiol 2023; 391-393:110151. [PMID: 36871395 DOI: 10.1016/j.ijfoodmicro.2023.110151] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023]
Abstract
Salmonella is the main human pathogen present in the poultry chain. Salmonella Heidelberg is one of the most important serovars for public health since it has been frequently isolated in broiler chickens from different countries and may present multidrug resistance (MDR). This study was carried out with 130 S. Heidelberg isolates collected from pre-slaughter broiler farms in 2019 and 2020 in 18 cities from three Brazilian states to study relevant aspects regarding their genotypic and phenotypic resistance. The isolates were tested and identified using somatic and flagellar antiserum (0:4, H:2, and H:r), and an antimicrobial susceptibility test (AST) was performed against 11 antibiotics for veterinary use. The strains were typed by Enterobacterial Repetitive Intergenic Consensus (ERIC)-PCR, and representatives of the main clusters of the identified profiles were sequenced by Whole Genome Sequencing (WGS). AST results showed that all isolates were resistant to sulfonamide, 54 % (70/130) were resistant to amoxicillin, and only one was sensitive to tetracycline. Twelve isolates (15.4 %) were MDR. The dendrogram obtained from the ERIC-PCR showed that the strains were grouped into 27 clusters with similarity above 90 %, with some isolates showing 100 % similarity but with different phenotypic profiles of antimicrobial resistance. Identical strains collected on the same farm on other dates were identified, indicating that they were residents. WGS identified 66 antibiotic-resistance genes. The sul2 (present in all sequenced samples) and tet(A) genes were highlighted and validated in the experimental analysis. The fosA7 gene was also identified in all sequenced samples, but resistance was not observed in the phenotypic test, possibly due to the heteroresistance of the S. Heidelberg strains evaluated. Considering that chicken meat is one of the most consumed meats in the world, the data obtained in the present study can corroborate the mapping of the origin and trends of antimicrobial resistance.
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Affiliation(s)
- Luana Sielski Galvão Soares
- Food Technology and Bioprocess Research Group, Department of Food Science and Technology, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil
| | - Tiago Casella
- Center for Microorganisms Investigation, São José Do Rio Preto Medical School (FAMERP), São José Do Rio Preto, SP, Brazil
| | - Eric Kazuo Kawagoe
- Laboratory of Bioinformatics, Department of Microbiology, Immunology and Parasitology, UFSC, Florianópolis, SC, Brazil
| | - Vilmar Benetti Filho
- Laboratory of Bioinformatics, Department of Microbiology, Immunology and Parasitology, UFSC, Florianópolis, SC, Brazil
| | | | - Mara Corrêa Lelles Nogueira
- Center for Microorganisms Investigation, São José Do Rio Preto Medical School (FAMERP), São José Do Rio Preto, SP, Brazil
| | - Glauber Wagner
- Laboratory of Bioinformatics, Department of Microbiology, Immunology and Parasitology, UFSC, Florianópolis, SC, Brazil
| | | | | | | | - Eduardo Cesar Tondo
- Laboratory of Food Microbiology and Food Control, Institute of Food Science and Food Technology of Federal University of Rio Grande do Sul (ICTA/UFRGS), Porto Alegre, RS, Brazil
| | - Juliano De Dea Lindner
- Food Technology and Bioprocess Research Group, Department of Food Science and Technology, Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil.
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Mukhtar MH, El-Readi MZ, Elzubier ME, Fatani SH, Refaat B, Shaheen U, Adam Khidir EB, Taha HH, Eid SY. Cymbopogon citratus and Citral Overcome Doxorubicin Resistance in Cancer Cells via Modulating the Drug's Metabolism, Toxicity, and Multidrug Transporters. Molecules 2023; 28:molecules28083415. [PMID: 37110649 PMCID: PMC10143904 DOI: 10.3390/molecules28083415] [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: 03/07/2023] [Revised: 04/08/2023] [Accepted: 04/08/2023] [Indexed: 04/29/2023] Open
Abstract
Multidrug resistance (MDR) is the major complex mechanism that causes the failure of chemotherapy, especially with drugs of natural origin such as doxorubicin (DOX). Intracellular drug accumulation and detoxification are also involved in cancer resistance by reducing the susceptibility of cancer cells to death. This research aims to identify the volatile composition of Cymbopogon citratus (lemon grass; LG) essential oil and compare the ability of LG and its major compound, citral, to modulate MDR in resistant cell lines. The composition of LG essential oil was identified using gas chromatography mass spectrometry (GC-MS). In addition, a comparison of the modulatory effects of LG and citral, performed on breast (MCF-7/ADR), hepatic (HepG-2/ADR), and ovarian (SKOV-3/ADR) MDR cell lines, were compared to their parent sensitive cells using the MTT assay, ABC transporter function assays, and RT-PCR. Oxygenated monoterpenes (53.69%), sesquiterpene hydrocarbons (19.19%), and oxygenated sesquiterpenes (13.79%) made up the yield of LG essential oil. α-citral (18.50%), β-citral (10.15%), geranyl acetate (9.65%), ylangene (5.70), δ-elemene (5.38%), and eugenol (4.77) represent the major constituents of LG oil. LG and citral (20 μg/mL) synergistically increased DOX cytotoxicity and lowered DOX dosage by >3-fold and >1.5-fold, respectively. These combinations showed synergism in the isobologram and CI < 1. DOX accumulation or reversal experiment confirmed that LG and citral modulated the efflux pump function. Both substances significantly increased DOX accumulation in resistant cells compared to untreated cells and verapamil (the positive control). RT-PCR confirmed that LG and citral targeted metabolic molecules in resistant cells and significantly downregulated PXR, CYP3A4, GST, MDR1, MRP1, and PCRP genes. Our results suggest a novel dietary and therapeutic strategy combining LG and citral with DOX to overcome multidrug resistance in cancer cells. However, these results should be confirmed by additional animal experiments before being used in human clinical trials.
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Affiliation(s)
- Mohammed Hasan Mukhtar
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al-Abdeyah, Makkah 24381, Saudi Arabia
| | - Mahmoud Zaki El-Readi
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al-Abdeyah, Makkah 24381, Saudi Arabia
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Al-Azhar University, Assuit 71524, Egypt
| | - Mohamed E Elzubier
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al-Abdeyah, Makkah 24381, Saudi Arabia
| | - Sameer H Fatani
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al-Abdeyah, Makkah 24381, Saudi Arabia
| | - Bassem Refaat
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al-Abdeyah, Makkah 24381, Saudi Arabia
| | - Usama Shaheen
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Cairo 11829, Egypt
| | - Elshiekh Babiker Adam Khidir
- Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Al-Abdeyah, Makkah 24381, Saudi Arabia
| | - Hesham Hamada Taha
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Al-Azhar University, Assuit 71524, Egypt
| | - Safaa Yehia Eid
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Al-Abdeyah, Makkah 24381, Saudi Arabia
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8
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Chowdhury MAH, Ashrafudoulla M, Mevo SIU, Mizan MFR, Park SH, Ha SD. Current and future interventions for improving poultry health and poultry food safety and security: A comprehensive review. Compr Rev Food Sci Food Saf 2023; 22:1555-1596. [PMID: 36815737 DOI: 10.1111/1541-4337.13121] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 01/07/2023] [Accepted: 01/22/2023] [Indexed: 02/24/2023]
Abstract
Poultry is thriving across the globe. Chicken meat is the most preferred poultry worldwide, and its popularity is increasing. However, poultry also threatens human hygiene, especially as a fomite of infectious diseases caused by the major foodborne pathogens (Campylobacter, Salmonella, and Listeria). Preventing pathogenic bacterial biofilm is crucial in the chicken industry due to increasing food safety hazards caused by recurring contamination and the rapid degradation of meat, as well as the increased resistance of bacteria to cleaning and disinfection procedures commonly used in chicken processing plants. To address this, various innovative and promising strategies to combat bacterial resistance and biofilm are emerging to improve food safety and quality and extend shelf-life. In particular, natural compounds are attractive because of their potential antimicrobial activities. Natural compounds can also boost the immune system and improve poultry health and performance. In addition to phytochemicals, bacteriophages, nanoparticles, coatings, enzymes, and probiotics represent unique and environmentally friendly strategies in the poultry processing industry to prevent foodborne pathogens from reaching the consumer. Lactoferrin, bacteriocin, antimicrobial peptides, cell-free supernatants, and biosurfactants are also of considerable interest for their prospective application as natural antimicrobials for improving the safety of raw poultry meat. This review aims to describe the feasibility of these proposed strategies and provide an overview of recent published evidences to control microorganisms in the poultry industry, considering the human health, food safety, and economic aspects of poultry production.
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Affiliation(s)
| | - Md Ashrafudoulla
- Food Science and Technology Department, Chung-Ang University, Anseong-Si, Republic of Korea
| | | | | | - Si Hong Park
- Department of Food Science and Technology, Oregon State University, Corvallis, Oregon, USA
| | - Sang-Do Ha
- Food Science and Technology Department, Chung-Ang University, Anseong-Si, Republic of Korea
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9
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Thakur M, Verma V, Chandel A, Kumar R, Sharma T, Kumar A, Bhardwaj S, Kumar R, Bhargava B. Lemon grass essential oil improves Gladiolus grandiflorus postharvest life by modulating water relations, microbial growth, biochemical activity, and gene expression. Sci Rep 2023; 13:2630. [PMID: 36788264 PMCID: PMC9929329 DOI: 10.1038/s41598-023-28829-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 01/25/2023] [Indexed: 02/16/2023] Open
Abstract
Gladiolus (Gladiolus grandiflorus Andrews) is a high-valued bulbous cut flower. However, the shorter postharvest life of the gladiolus, limits its marketing and commercial value. In the present investigation, the effect of lemon grass (LG) essential oil as an antimicrobial agent was studied towards increasing the vase life of gladiolus. The results revealed that as compared to control (distilled water), treatment with a lower concentration of 5 µL L-1 LG essential oil prolonged the vase life of gladiolus up to 11 days (d). Scanning Electron Microscope (SEM) observation indicated that the sample treated with 5 µL L-1 LG essential oil showed intact vasculature, suggesting reduced microbial blockage at the stem end which was further corroborated by microbial count. Biochemical analysis suggested an increased level of total soluble sugars, carotenoid content, lower MDA accumulation, and higher activity of antioxidant enzymes in LG treated flowers. Moreover, transcripts levels of genes associated with senescence viz., GgCyP1 and GgERS1a were downregulated, while expression of GDAD1 and antioxidant genes such as GgP5C5, GgPOD 1, GgMnSOD, and GgCAT1 were upregulated in LG treated cut spikes as compared to control. Among various treatments we have concluded that, the vase life of the gladiolus cut spike was improved along with the relative fresh flower weight and diameter of flower at the lower dose of 5 µL L-1 LG oil in the vase solution. Thus, LG oil as an eco-friendly agent has the potential to extend the postharvest life of cut flowers.
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Affiliation(s)
- Meenakshi Thakur
- grid.417640.00000 0004 0500 553XFloriculture Laboratory, Agrotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Vipasha Verma
- grid.417640.00000 0004 0500 553XFloriculture Laboratory, Agrotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Anjali Chandel
- grid.417640.00000 0004 0500 553XFloriculture Laboratory, Agrotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India ,grid.469887.c0000 0004 7744 2771Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India
| | - Raghawendra Kumar
- grid.417640.00000 0004 0500 553XFloriculture Laboratory, Agrotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Tanvi Sharma
- grid.469887.c0000 0004 7744 2771Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India
| | - Akhil Kumar
- grid.417640.00000 0004 0500 553XFloriculture Laboratory, Agrotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Sonali Bhardwaj
- grid.417640.00000 0004 0500 553XFloriculture Laboratory, Agrotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Rakshak Kumar
- grid.469887.c0000 0004 7744 2771Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201002 India ,grid.417640.00000 0004 0500 553XBiotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India
| | - Bhavya Bhargava
- Floriculture Laboratory, Agrotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, 201002, India.
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10
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Jamróz E, Cabaj A, Tkaczewska J, Kawecka A, Krzyściak P, Szuwarzyński M, Mazur T, Juszczak L. Incorporation of Curcumin Extract with Lemongrass Essential Oil into the Middle Layer of Triple-Layered Films Based on Furcellaran/Chitosan/Gelatin Hydrolysates - In Vitro and In Vivo Studies on Active and Intelligent Properties. Food Chem 2022; 402:134476. [DOI: 10.1016/j.foodchem.2022.134476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 01/11/2023]
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11
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Mukarram M, Choudhary S, Khan MA, Poltronieri P, Khan MMA, Ali J, Kurjak D, Shahid M. Lemongrass Essential Oil Components with Antimicrobial and Anticancer Activities. Antioxidants (Basel) 2021; 11:20. [PMID: 35052524 PMCID: PMC8773226 DOI: 10.3390/antiox11010020] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/18/2021] [Accepted: 12/20/2021] [Indexed: 12/13/2022] Open
Abstract
The prominent cultivation of lemongrass (Cymbopogon spp.) relies on the pharmacological incentives of its essential oil. Lemongrass essential oil (LEO) carries a significant amount of numerous bioactive compounds, such as citral (mixture of geranial and neral), isoneral, isogeranial, geraniol, geranyl acetate, citronellal, citronellol, germacrene-D, and elemol, in addition to other bioactive compounds. These components confer various pharmacological actions to LEO, including antifungal, antibacterial, antiviral, anticancer, and antioxidant properties. These LEO attributes are commercially exploited in the pharmaceutical, cosmetics, and food preservations industries. Furthermore, the application of LEO in the treatment of cancer opens a new vista in the field of therapeutics. Although different LEO components have shown promising anticancer activities in vitro, their effects have not yet been assessed in the human system. Hence, further studies on the anticancer mechanisms conferred by LEO components are required. The present review intends to provide a timely discussion on the relevance of LEO in combating cancer and sustaining human healthcare, as well as in food industry applications.
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Affiliation(s)
- Mohammad Mukarram
- Advance Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202002, India; (S.C.); (M.M.A.K.)
- Department of Integrated Forest and Landscape Protection, Faculty of Forestry, Technical University in Zvolen, T. G. Masaryka 24, 96001 Zvolen, Slovakia;
| | - Sadaf Choudhary
- Advance Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202002, India; (S.C.); (M.M.A.K.)
| | - Mo Ahamad Khan
- Department of Microbiology, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh 202002, India;
| | - Palmiro Poltronieri
- Institute of Sciences of Food Productions, ISPA-CNR, National Research Council of Italy, Via Monteroni km 7, 73100 Lecce, Italy
| | - M. Masroor A. Khan
- Advance Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh 202002, India; (S.C.); (M.M.A.K.)
| | - Jamin Ali
- Centre for Applied Entomology and Parasitology, School of Life Sciences, Keele University, Keele, Newcastle ST5 5BG, UK;
| | - Daniel Kurjak
- Department of Integrated Forest and Landscape Protection, Faculty of Forestry, Technical University in Zvolen, T. G. Masaryka 24, 96001 Zvolen, Slovakia;
| | - Mohd Shahid
- Department of Microbiology, Immunology & Infectious Diseases, College of Medicine and Medical Sciences, Arabian Gulf University, Road 2904 Building 293 Manama, 329, Bahrain;
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12
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Dewi G, Manjankattil S, Peichel C, Jia S, Nair D, Vickers Z, Johnson TJ, Cardona C, Noll S, Kollanoor Johny A. Effect of plant-derived antimicrobials against multidrug-resistant Salmonella Heidelberg in ground Turkey. Poult Sci 2021; 101:101581. [PMID: 34991037 PMCID: PMC8741611 DOI: 10.1016/j.psj.2021.101581] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/30/2021] [Accepted: 11/02/2021] [Indexed: 11/24/2022] Open
Abstract
Salmonella Heidelberg (SH) is a highly invasive human pathogen for which turkeys can serve as reservoir hosts. Colonization of turkeys with SH may result in potential contamination and is a greater challenge to prevent in comminuted products. Antimicrobial efficacy of 3 GRAS-status plant-derived antimicrobials (PDAs), lemongrass essential oil (LG), citral (CIT), and trans-cinnamaldehyde (TC), against SH in ground turkey, a comminuted product implicated in several outbreaks, was evaluated in this study. Ground turkey samples inoculated with ∼3.50 log10 CFU/g of a three-strain SH cocktail were treated with either LG, CIT, or TC at either 0.5, 1, or 2% (vol/wt). Samples were stored at 4°C, and bacterial enumeration was performed on d 0, 1, 3, and 5. Appropriate controls were included alongside all treatments. Fluorescence microscopy was performed to evaluate the direct impact of the PDAs against SH in vitro. Appearance and aroma difference testing of raw patties was also performed for select treatments with trained sensory panelists. Treatment with 2% TC yielded a 2.5 log10 CFU/g reduction by d 1 and complete reduction by d 5 (P < 0.05). By d 3, 2% CIT and 2% LG resulted in SH reduction of at least 1.7 log10 CFU/g (P < 0.05). Addition of 1% TC resulted in reduction of at least 1.8 log10 CFU/g by d 3 (P < 0.05). Participants could distinguish PDA-treated raw patties by aroma. Most participants (7/11) could not distinguish patties treated with 0.5% TC based on appearance. Microscopic images indicate that all PDAs resulted in disruption of the SH membrane. Results of the present study indicate that the three tested PDAs, LG, CIT, and TC are effective against SH in ground turkey, indicating their potential use as interventions to mitigate Salmonella contamination in comminuted turkey products.
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Affiliation(s)
- Grace Dewi
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | | | - Claire Peichel
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Shiliang Jia
- College of Food Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Divek Nair
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Zata Vickers
- Department of Food Science and Nutrition, University of Minnesota, Saint Paul, MN 55108, USA
| | - Timothy J Johnson
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Saint Paul, MN 55108, USA
| | - Carol Cardona
- Department of Veterinary and Biomedical Sciences, University of Minnesota, Saint Paul, MN 55108, USA
| | - Sally Noll
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA
| | - Anup Kollanoor Johny
- Department of Animal Science, University of Minnesota, Saint Paul, MN 55108, USA.
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13
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Effect of caprylic acid alone or in combination with peracetic acid against multidrug-resistant Salmonella Heidelberg on chicken drumsticks in a soft scalding temperature-time setup. Poult Sci 2021; 100:101421. [PMID: 34601442 PMCID: PMC8531859 DOI: 10.1016/j.psj.2021.101421] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 08/02/2021] [Accepted: 08/03/2021] [Indexed: 11/23/2022] Open
Abstract
The antimicrobial efficacy of caprylic acid (CA), a medium-chain fatty acid, against multidrug-resistant Salmonella Heidelberg (MDR SH) on chicken drumsticks in a soft-scalding temperature-time setup was investigated. Based on the standardization experiments in nutrient media and on chicken breast fillet portions, intact chicken drumsticks were spot inoculated with MDR SH and immersed in water with or without antimicrobial treatments at 54°C for 2 min. The treatments included 0.5% CA, 1% CA, 0.05% peracetic acid (PAA), 0.5% CA + 0.05% PAA, and 1.0% CA + 0.05% PAA. Additionally, the efficacy of the potential scald treatments against MDR SH survival on drumsticks for a storage period of 48 h at 4°C was determined. Furthermore, the effect of these treatments on the surface color of the drumsticks was also evaluated. Appropriate controls were included for statistical comparisons. The antimicrobial treatments resulted in a significant reduction of MDR SH on drumsticks. For the lower inoculum (∼2.5 log10 CFU/g) experiments, 0.5% CA, 1% CA, 0.05% PAA, 0.5% CA + 0.05% PAA, and 1.0% CA + 0.05% PAA resulted in 0.7-, 1.0-, 2.5-, 1.4-, and 1.5- log10 CFU/g reduction of MDR SH on drumsticks, respectively (P < 0.05). The same treatments resulted in 0.9-, 1.3-, 2.5-, 2.2-, and 2.6- log10 CFU/g reduction of MDR SH when the drumsticks were contaminated with a higher inoculum (∼4.5 log10 CFU/g) level (P < 0.05). Moreover, the antimicrobial treatments inactivated MDR SH in the treatment water to undetectable levels, whereas 2.0- to 4.0- log10 CFU/mL MDR SH survived in the positive controls (P < 0.05). Also, the treatments were effective in inhibiting MDR SH on the drumsticks compared to the respective controls during a storage period of 48 h at 4°C; however, the magnitude of reduction remained the same as observed during the treatment (P < 0.05). Additionally, none of the treatments affected the color of the drumsticks (P > 0.05). Results indicate that CA could be an effective natural processing aid against MDR SH on chicken products.
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14
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Van NTB, Vi OT, Yen NTP, Nhung NT, Cuong NV, Kiet BT, Hoang NV, Hien VB, Thwaites G, Campell J, Choisy M, Carrique-Mas J. Minimum inhibitory concentrations of commercial essential oils against common chicken pathogenic bacteria and their relationship with antibiotic resistance. J Appl Microbiol 2021; 132:1025-1035. [PMID: 34543506 PMCID: PMC9293407 DOI: 10.1111/jam.15302] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/09/2021] [Accepted: 09/04/2021] [Indexed: 11/27/2022]
Abstract
Aims We investigated the antibacterial effect of seven essential oils (EOs) and one EO‐containing liquid phytogenic solution marketed for poultry and pigs (‘Product A’) on chicken pathogens, as well as the relationship between minimum inhibitory concentration (MIC) in EOs and antibiotics commonly administered to chicken flocks in the Mekong Delta (Vietnam). Methods and Results Micellar extracts from oregano (Origanum vulgare), cajeput (Melaleuca leucadendra), garlic (Allium sativum), black pepper (Piper nigrum), peppermint (Mentha × piperita L.), tea tree (Melaleuca alternifolia), cinnamon (Cinnamomum zeylanicum) EOs and Product A were investigated for their MIC against Avibacterium endocarditidis (N = 10), Pasteurella multocida (N = 7), Ornitobacterium rhinotracheale (ORT) (N = 10), Escherichia coli (N = 10) and Gallibacterium anatis (N = 10). Cinnamon EO had the lowest median MIC across strains (median 0.5 mg/ml [IQR, interquartile range 0.3–2.0 mg/ml]), followed by Product A (3.8 mg/ml [1.9–3.8 mg/ml]), oregano EO (30.4 mg/ml [7.6–60.8 mg/ml]) and garlic 63.1 mg/ml [3.9 to >505.0 mg/ml]. Peppermint, tea tree, cajeput and pepper EOs had all MIC ≥219 mg/ml. In addition, we determined the MIC of the 12 most commonly used antibiotics in chicken flocks in the area. After accounting for pathogen species, we found an independent, statistically significant (p < 0.05) positive correlation between MIC of 10 of 28 (35.7%) pairs of EOs. For 67/96 (69.8%) combinations of EOs and antibiotics, the MICs were correlated. Of all antibiotics, doxycycline was positively associated with the highest number of EOs (peppermint, tea tree, black pepper and cajeput, all p < 0.05). For cinnamon, the MICs were negatively correlated with the MICs of 11/12 antimicrobial tested (all except colistin). Conclusions Increases in MIC of antibiotics generally correlates with increased tolerance to EOs. For cinnamon EO, however, the opposite was observed. Significance and Impact of the Study Our results suggest increased antibacterial effects of EOs on multi‐drug resistant pathogens; cinnamon EO was particularly effective against bacterial poultry pathogens.
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Affiliation(s)
- Nguyen Thi Bich Van
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - On Thuong Vi
- International University, Vietnam National University, Hanoi, Vietnam
| | - Nguyen Thi Phuong Yen
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Nguyen Thi Nhung
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Nguyen Van Cuong
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam
| | - Bach Tuan Kiet
- Sub-Department of Animal Health, Dong Thap Province, Cao Lanh, Vietnam
| | - Nguyen Van Hoang
- Sub-Department of Animal Health, Dong Thap Province, Cao Lanh, Vietnam
| | - Vo Be Hien
- Sub-Department of Animal Health, Dong Thap Province, Cao Lanh, Vietnam
| | - Guy Thwaites
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam.,Nuffield Department of Medicine, Oxford University, Oxford, UK
| | - James Campell
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam.,Nuffield Department of Medicine, Oxford University, Oxford, UK
| | - Marc Choisy
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam.,Nuffield Department of Medicine, Oxford University, Oxford, UK
| | - Juan Carrique-Mas
- Oxford University Clinical Research Unit, Hospital for Tropical Diseases, Ho Chi Minh City, Vietnam.,Nuffield Department of Medicine, Oxford University, Oxford, UK
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15
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Roy PK, Ha AJW, Mizan MFR, Hossain MI, Ashrafudoulla M, Toushik SH, Nahar S, Kim YK, Ha SD. Effects of environmental conditions (temperature, pH, and glucose) on biofilm formation of Salmonella enterica serotype Kentucky and virulence gene expression. Poult Sci 2021; 100:101209. [PMID: 34089933 PMCID: PMC8182266 DOI: 10.1016/j.psj.2021.101209] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 04/01/2021] [Accepted: 04/11/2021] [Indexed: 12/20/2022] Open
Abstract
Salmonella is a foodborne pathogen and an emerging zoonotic bacterial threat in the food industry. The aim of this study was to evaluate the biofilm formation by a cocktail culture of 3 wild isolates of Salmonella enterica serotype Kentucky on plastic (PLA), silicon rubber (SR), and chicken skin surfaces under various temperatures (4, 10, 25, 37, and 42°C) and pH values (4.0, 5.0, 6.0, 7.0, and 8.0). Then, at the optimum temperature and pH, the effects of supplementation with glucose (0, 0.025, 0.05, and 0.4% w/v) on biofilm formation were assessed on each of the surfaces. The results indicated that higher temperatures (25 to 42°C) and pH values (7.0 and 8.0) led to more robust biofilm formation than lower temperatures (4 and 10°C) and lower pH levels (4.0 to 6.0). Moreover, biofilm formation was induced by 0.025% glucose during incubation at the optimum temperature (37°C) and pH (7.0) but inhibited by 0.4% glucose. Consistent with this finding, virulence related gene (rpoS, rpoH, hilA, and avrA) expression was increased at 0.025% glucose and significantly reduced at 0.4% glucose. This results also confirmed by field emission scanning electron microscope, confocal laser scanning microscopy, and autoinducer-2 determination. This study concluded that optimum environmental conditions (temperature 37°C, pH 7.0, and 0.25% glucose) exhibited strong biofilm formation on food and food contract surfaces as well as increased the virulence gene expression levels, indicating that these environmental conditions might be threating conditions for food safety.
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Affiliation(s)
- Pantu Kumar Roy
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Republic of Korea
| | - Angela Ji-Won Ha
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Republic of Korea
| | - Md Furkanur Rahaman Mizan
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Republic of Korea
| | - Md Iqbal Hossain
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Republic of Korea
| | - Md Ashrafudoulla
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Republic of Korea
| | - Sazzad Hossen Toushik
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Republic of Korea
| | - Shamsun Nahar
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Republic of Korea
| | - Yu Kyung Kim
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Republic of Korea
| | - Sang-Do Ha
- Advanced Food Safety Research Group, Department of Food Science and Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Republic of Korea.
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