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Jiang K, Zhu B, Liu Y, Chen H, Yuan M, Qin Y, Brennan M, Brennan C. Effects of antimicrobial nanocomposite films packaging on the postharvest quality and spoilage bacterial communities of mushrooms ( Chanterelles). Food Chem X 2023; 20:100996. [PMID: 38144825 PMCID: PMC10740022 DOI: 10.1016/j.fochx.2023.100996] [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: 08/03/2023] [Revised: 10/31/2023] [Accepted: 11/09/2023] [Indexed: 12/26/2023] Open
Abstract
Poly (lactic acid) (PLA) composite films with the addition of mesoporous silica nanoparticles MSN (0, 2, 4 and 6 wt%) loaded with 10 wt% citral (CIT) were prepared for application in Chanterelles packaging. Composite films with added MSN/CIT showed good mechanical properties, especially 4MSN/CIT/PLA. Changes in physicochemical properties and bacterial flora of Chanterelles during packaging and storage were tested. Compared with CIT/PLA, Chanterelles packed with 4MSN/CIT/PLA showed about 1.62-times lower browning value, 1.53-times lower electrolyte permeability, and 1.83- and 1.78-times lower PPO and POD, respectively, at 12 day. Better physicochemical properties of Chanterelles can be maintained. For bacterial flora changes, Chanterelles packaged with 4MSN/CIT/PLA had more stable flora (p < 0.05) and lower species diversity during storage (p < 0.05), effectively controlling the growth and reproduction of their dominant spoilage bacteria (Enterobacteriaceae spp). In conclusion, the composite membranes obtained by the addition of MSN/CIT to PLA have great potential in the storage of Chanterelles.
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Affiliation(s)
- Kai Jiang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650550, China
| | - Bifen Zhu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650550, China
| | - Yudi Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650550, China
| | - Haiyan Chen
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650550, China
| | - Mingwei Yuan
- Green Preparation Technology of Biobased Materials National & Local Joint Engineering Research Center, Yunnan Minzu University, Kunming 650500, China
| | - Yuyue Qin
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming 650550, China
| | - Margaret Brennan
- School of Science, Royal Melbourne Institute of Technology University, Melbourne 3000, Australia
| | - Charles Brennan
- School of Science, Royal Melbourne Institute of Technology University, Melbourne 3000, Australia
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Tuttle JT, Bruce TJ, Abdelrahman HA, Roy LA, Butts IAE, Beck BH, Kelly AM. Persistence of a Wild-Type Virulent Aeromonas hydrophila Isolate in Pond Sediments from Commercial Catfish Ponds: A Laboratory Study. Vet Sci 2023; 10:vetsci10030236. [PMID: 36977275 PMCID: PMC10056530 DOI: 10.3390/vetsci10030236] [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: 03/06/2023] [Revised: 03/18/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Virulent Aeromonas hydrophila (vAh) is a major bacterial pathogen in the U.S. catfish industry and is responsible for large-scale losses within commercial ponds. Administering antibiotic feeds can effectively treat vAh infections, but it is imperative to discern new approaches and better understand the mechanics of infection for this bacterium. As such, the persistence of vAh in pond sediments was determined by conducting laboratory trials using sediment from four commercial catfish ponds. Twelve chambers contained sterilized sediment, vAh isolate ML-09-119, and 8 L of water maintained at 28 °C and were aerated daily. At 1, 2, 4, 6, and 8 days, and every 7th day post-inoculation for 28 days, 1 g of sediment was removed, and vAh colony forming units (CFU) were enumerated on ampicillin dextrin agar. Viable vAh colonies were present in all sediments at all sampling periods. The vAh growth curve peaked (1.33 ± 0.26 × 109 CFU g-1) at 96 h post-inoculation. The population plateaued between days 14 and 28. No correlations were found between CFU g-1 and physiochemical sediment variables. This study validated the ability of vAh to persist within pond sediments in a laboratory setting. Further research on environmental factors influencing vAh survivability and population dynamics in ponds is needed.
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Affiliation(s)
- James T Tuttle
- Alabama Fish Farming Center, Greensboro, AL 36744, USA
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Timothy J Bruce
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Hisham A Abdelrahman
- Alabama Fish Farming Center, Greensboro, AL 36744, USA
- Department of Veterinary Hygiene and Management, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Luke A Roy
- Alabama Fish Farming Center, Greensboro, AL 36744, USA
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Ian A E Butts
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Benjamin H Beck
- Aquatic Animal Health Research Unit, US Department of Agriculture, Agricultural Research Service, Auburn, AL 36832, USA
| | - Anita M Kelly
- Alabama Fish Farming Center, Greensboro, AL 36744, USA
- School of Fisheries, Aquaculture, and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
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Huang Z, Huang Y, Dong Z, Guan P, Wang X, Wang S, Lei M, Suo B. Modelling the growth of Staphylococcus aureus with different levels of resistance to low temperatures in glutinous rice dough. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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Roy PK, Jeon EB, Park SY. Effects of nonthermal dielectric barrier discharge plasma against
Listeria monocytogenes
and quality of smoked salmon fillets. J Food Saf 2022. [DOI: 10.1111/jfs.13012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Pantu Kumar Roy
- Institute of Marine Industry, Department of Seafood Science and Technology Gyeongsang National University Tongyeong Republic of Korea
| | - Eun Bi Jeon
- Institute of Marine Industry, Department of Seafood Science and Technology Gyeongsang National University Tongyeong Republic of Korea
| | - Shin Young Park
- Institute of Marine Industry, Department of Seafood Science and Technology Gyeongsang National University Tongyeong Republic of Korea
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