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Byun KH, Na KW, Ashrafudoulla M, Choi MW, Han SH, Kang I, Park SH, Ha SD. Combination treatment of peroxyacetic acid or lactic acid with UV-C to control Salmonella Enteritidis biofilms on food contact surface and chicken skin. Food Microbiol 2021; 102:103906. [PMID: 34809938 DOI: 10.1016/j.fm.2021.103906] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/11/2021] [Accepted: 09/15/2021] [Indexed: 12/15/2022]
Abstract
The risk of salmonellosis is expected to increase with the rise in the consumption of poultry meat. The aim of this study was to investigate the combination treatment of peroxyacetic acid (PAA) or lactic acid (LA) with UV-C against Salmonella Enteritidis biofilms formed on food contact surface (stainless steel [SS], silicone rubber [SR], and ultra-high molecular weight polyethylene [UHMWPE]) and chicken skin. The biofilm on food contact surface and chicken skin was significantly decreased (P < 0.05) by combination treatment of PAA or LA with UV-C. Combination treatment of PAA (50-500 μg/mL) with UV-C (5 and 10 min) reduced 3.10-6.41 log CFU/cm2 and LA (0.5-2.0%) with UV-C (5 and 10 min) reduced 3.35-6.41 log CFU/cm2 of S. Enteritidis biofilms on food contact surface. Salmonella Enteritidis biofilms on chicken skin was reduced around 2 log CFU/g with minor quality changes in color and texture by combination treatment of PAA (500 μg/mL) or LA (2.0%) with UV-C (10 min). Additional reduction occurred on SS and UHMWPE by PAA or LA with UV-C, while only LA with UV-C caused additional reduction on chicken skin. Also, it was visualized that the biofilm on food contact surface and chicken skin was removed through field emission scanning electron microscopy (FESEM) and death of cells constituting the biofilm was confirmed through confocal laser scanning microscopy (CLSM). These results indicating that the combination treatment of PAA or LA with UV-C could be used for S. Enteritidis biofilm control strategy in poultry industry.
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Affiliation(s)
- Kye-Hwan Byun
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, Daeduk-myun, Ansung, Nae-ri, Brain Korea 21 Plus, Kyunggido, 17546, Republic of Korea
| | - Kyung Won Na
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, Daeduk-myun, Ansung, Nae-ri, Brain Korea 21 Plus, Kyunggido, 17546, Republic of Korea
| | - Md Ashrafudoulla
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, Daeduk-myun, Ansung, Nae-ri, Brain Korea 21 Plus, Kyunggido, 17546, Republic of Korea
| | - Min Woo Choi
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, Daeduk-myun, Ansung, Nae-ri, Brain Korea 21 Plus, Kyunggido, 17546, Republic of Korea
| | - Sang Ha Han
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, Daeduk-myun, Ansung, Nae-ri, Brain Korea 21 Plus, Kyunggido, 17546, Republic of Korea
| | - Iksoon Kang
- Department of Animal Science, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - Si Hong Park
- Food Science and Technology, Oregon State University, Corvallis, OR, United States
| | - Sang-Do Ha
- Department of Food Science and Technology, Advanced Food Safety Research Group, Chung-Ang University, Daeduk-myun, Ansung, Nae-ri, Brain Korea 21 Plus, Kyunggido, 17546, Republic of Korea.
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Balta I, Linton M, Pinkerton L, Kelly C, Ward P, Stef L, Pet I, Horablaga A, Gundogdu O, Corcionivoschi N. The effect of natural antimicrobials on the Campylobacter coli T6SS +/- during in vitro infection assays and on their ability to adhere to chicken skin and carcasses. Int J Food Microbiol 2021; 338:108998. [PMID: 33279789 DOI: 10.1016/j.ijfoodmicro.2020.108998] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 11/16/2020] [Accepted: 11/21/2020] [Indexed: 11/20/2022]
Abstract
Reducing the Campylobacter load on poultry carcasses represents a major tasks for the industry as its ability to reduce their presence is of major interest aiming to increase consumer safety. This study investigated the ability of a mixture of natural antimicrobials (A3001) to reduce the adherence of the T6SS+/-C. coli isolates (NC1hcp-, NC2 hcp- and NC3 hcp+) to chicken neck skin and whole carcasses. Overall, the antimicrobial mixture induced a significant reduction in the capability of our C. coli isolates to colonise the chicken skin (p < 0.05) and carcasses (p < 0.0001) but with a greater effect (≈3 log reduction) on the NC3 isolate. Using the HCT-8 in vitro infection model we also show that at a concentration of 0.5% A3001, the impact on the NC3 isolate is accompanied by the downregulation of the hcp gene (p = 0.0001), and indicator of the T6SS presence. The results described herein also indicated that these isolates are highly resistant to H2O2, up to 20 mM, suggesting a high resilience to environmental stresses. In summary our study shows that natural antimicrobials can reduce the ability of T6SS positive chicken C. coli isolates to adhere to chicken skin or to the whole carcass and to infect epithelial cells in vitro and could be considered a potential intervention at processor level.
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Aksun Tümerkan ET, Cansu Ü, Boran G, Regenstein JM, Özoğul F. Physiochemical and functional properties of gelatin obtained from tuna, frog and chicken skins. Food Chem 2019; 287:273-9. [PMID: 30857699 DOI: 10.1016/j.foodchem.2019.02.088] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 02/17/2019] [Accepted: 02/18/2019] [Indexed: 11/24/2022]
Abstract
Growing demand for gelatin has increased interest in using alternative raw materials. In this study, different animal skins; namely frog, tuna and chicken skins; were utilized in gelatin extraction by previously optimized extraction procedures. Quality characteristics and functional properties of the resultant gelatins were comparatively investigated. Frog skin gelatin had the highest protein content with 77.8% while the highest hydroxyproline content was found in chicken skin gelatin with 6.4%. Frog skin gelatin showed a significantly higher melting point (42.7 °C) compared to tuna and chicken gelatins. Bloom value was also significantly higher in frog skin gelatin compared to that of chicken and tuna skin gelatins. Results showed that processing waste like skins of different animals may present opportunities in gelatin production as high quality alternatives. This study may help the industry by providing one hand comparable data over potentially significant sources.
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Sommers C, Gunther NW, Sheen S. Inactivation of Salmonella spp., pathogenic Escherichia coli, Staphylococcus spp., or Listeria monocytogenes in chicken purge or skin using a 405-nm LED array. Food Microbiol 2016; 64:135-138. [PMID: 28213017 DOI: 10.1016/j.fm.2016.12.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 10/28/2016] [Accepted: 12/20/2016] [Indexed: 12/28/2022]
Abstract
Raw poultry are sometimes contaminated with foodborne pathogens, which can lead to illness in humans. In recent years research has focused on a variety of light technologies to decontaminate food and food contact surfaces during meat and poultry processing. In this study we evaluated the ability of 405-nm light generated from an LED array to inactivate multi-isolate cocktails of either Salmonella spp., pathogenic Escherichia coli, Staphylococcus spp., or Listeria monocytogenes suspended in chicken purge or skin. When exposed to 180 J/cm2 405-nm light at two separate light intensities (300 mW/cm2/s or 150 mW/cm2/s) the maximum pathogen reduction on chicken skin was ca. 0.4 log. When the pathogens were suspended in chicken purge the maximum log reductions ranged from 0.23 to 0.68 log (180 J/cm2; 150 mW/cm2/s) versus 0.69 to 1.01 log (180 J/cm2; 300 mW/cm2/s). Log reductions of each pathogen, when they were subjected to heat shock prior to 405-nm light treatment, were reduced, indicating that thermal effects accounted for much of the bacterial inactivation.
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Affiliation(s)
- Christopher Sommers
- U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, PA 19038, USA.
| | - Nereus W Gunther
- U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, PA 19038, USA
| | - Shiowshuh Sheen
- U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, PA 19038, USA
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