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Li Z, Zhao W, Wang P, Zhao S, Wang D, Zhao X. Evolution of microbial community and the volatilome of fresh-cut chili pepper during storage under different temperature conditions: Correlation of microbiota and volatile organic compounds. Food Chem 2024; 451:139401. [PMID: 38685178 DOI: 10.1016/j.foodchem.2024.139401] [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: 11/07/2023] [Revised: 03/07/2024] [Accepted: 04/15/2024] [Indexed: 05/02/2024]
Abstract
The effect of temperature conditions on the evolution of microbial communities and volatile organic compounds (VOCs) in fresh-cut chili peppers during storage was investigated. Results showed that Proteobacteria and Actinobacteriota were the dominant phyla in fresh-cut chili peppers. During storage, bacterial communities changed more dramatically than fungi. Different temperature conditions significantly affected the shift of bacteria at the genus level. At the beginning of storage, Rhodococcus, Pantoea, and Pseudomonas dominated the bacteria. However, on day 8, Pantoea and Enterobacter became the predominant genera at 5 °C and high temperatures (10, 15 °C, dynamic temperature), respectively. No significant variability in bacterial species was observed between different batches. Additionally, 140 VOCs were determined in fresh-cut chili peppers. Twenty-two VOCs were screened and could be recommended as potential spoilage markers. Based on Spearman's correlation analysis results, Enterobacter and Enterococcus were the most positive microorganisms correlated with spoilage markers.
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Affiliation(s)
- Zudi Li
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China; Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China
| | - Wenting Zhao
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China.
| | - Pan Wang
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China.
| | - Shuang Zhao
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China.
| | - Dan Wang
- Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China.
| | - Xiaoyan Zhao
- College of Food Science, Shenyang Agricultural University, Shenyang, Liaoning 110866, China; Institute of Agri-food Processing and Nutrition, Beijing Academy of Agriculture and Forestry Sciences, Beijing Key Laboratory of Agricultural Products of Fruits and Vegetables Preservation and Processing, Key Laboratory of Vegetable Postharvest Processing, Ministry of Agriculture and Rural Affairs, Beijing 100097, China.
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Johansson P, Jääskeläinen E, Säde E, Björkroth J. Vagococcus proximus sp. nov. and Vagococcus intermedius sp. nov., originating from modified atmosphere packaged broiler meat. Int J Syst Evol Microbiol 2023; 73. [PMID: 37462470 DOI: 10.1099/ijsem.0.005963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023] Open
Abstract
During our studies on spoilage microbiomes of modified atmosphere packaged broiler meat, we isolated three strains (PNs007T, STAA11T and STAA25) of unknown identity. In this present polyphasic taxonomy study, including genome-based analyses, we discovered that these isolates represent two novel species belonging to the genus Vagococcus. In all phylogenetic analyses, PNs007T was positioned very close to Vagococcus fessus but both the average nucleotide identity (ANI; 89.5 %) and digital DNA-DNA hybridization (dDDH; 38.3 %) values distinguished it as a novel vagococcal species. STAA11T and STAA25 were genetically highly similar (16S rRNA, ANI and dDDH 100 %). The phylogenetic position of STAA11T was adjacent to but out of the cluster containing V. fessus, Vagococcus coleopterorum and PNs007T. According to the ANI (76.2-76.4 %) and dDDH (<22.6 %) values it also represented a novel vagococcal species. Phenotypic characteristics and chemotaxonomic properties of both novel species were typical for vagococci and they contained C16 : 0 (25.5-30.1 %) and C18 : 1 ω9c (67.3-73.0 %) as the major cellular fatty acids. The streptomycin-resistant genotype of STAA11T and STAA25 allowing the growth on streptomycin thallous acetate actidione medium was considered to result from a modification in codon 104 of the rpsL gene leading to P104A substitution. The ability of STAA11T and STAA25 to produce ammonia from arginine separated them from PNs007T, which did not show arginine deiminase activity. We propose the names Vagococcus proximus sp. nov. (type strain PNs007T=DSM 115185T=CCUG 76696T) and Vagococcus intermedius sp. nov. (type strain STAA11T=DSM 115183T=CCUG 76697T) for these novel species.
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Affiliation(s)
- Per Johansson
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, 00014 Helsinki, Finland
| | - Elina Jääskeläinen
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, 00014 Helsinki, Finland
| | - Elina Säde
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, 00014 Helsinki, Finland
| | - Johanna Björkroth
- Department of Food Hygiene and Environmental Health, Faculty of Veterinary Medicine, University of Helsinki, Agnes Sjöbergin katu 2, 00014 Helsinki, Finland
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Kaszab E, Farkas M, Radó J, Micsinai A, Nyírő-Fekete B, Szabó I, Kriszt B, Urbányi B, Szoboszlay S. Novel members of bacterial community during a short-term chilled storage of common carp (Cyprinus carpio). Folia Microbiol (Praha) 2021; 67:299-310. [PMID: 34877630 PMCID: PMC8933370 DOI: 10.1007/s12223-021-00935-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 11/23/2021] [Indexed: 11/17/2022]
Abstract
This work aimed to identify the key members of the bacterial community growing on common carp (Cyprinus carpio) fillets during chilled storage with next-generation sequencing (NGS) and cultivation-dependent methods. Carp fillets were stored for 96 h at 2 °C and 6 °C with and without a vacuum package, and an additional frozen-thawed storage experiment was set for 120 days. Community profiles of the initial and stored fish samples were determined by amplicon sequencing. Conventional microbial methods were used parallelly for the enumeration and cultivation of the dominant members of the microbial community. Cultivated bacteria were identified with 16S rRNA sequencing and the MALDI-TOF MS method. Based on our results, the vacuum package greatly affected the diversity and composition of the forming microbial community, while temperature influenced the cell counts and consequently the microbiological criteria for shelf-life of the examined raw fish product. Next-generation sequencing revealed novel members of the chilled flesh microbiota such as Vagococcus vulneris or Rouxiella chamberiensis in the vacuum-packed samples. With traditional cultivation, 161 bacterial strains were isolated and identified at the species level, but the identified bacteria overlapped with only 45% of the dominant operational taxonomic units (OTUs) revealed by NGS. Next-generation sequencing is a promising and highly reliable tool recommended to reach a higher resolution of the forming microbial community of stored fish products. Knowledge of the initial microbial community of the flesh enables further optimization and development of processing and storage technology.
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Affiliation(s)
- Edit Kaszab
- Department of Environmental Safety, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, 1 Páter Károly, 2100, Gödöllő, Hungary.
| | - Milán Farkas
- Department of Molecular Ecology, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, 1 Páter Károly, 2100, Gödöllő, Hungary
| | - Júlia Radó
- Department of Environmental Safety, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, 1 Páter Károly, 2100, Gödöllő, Hungary
| | | | | | - István Szabó
- Department of Environmental Toxicology, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, 1 Páter Károly, 2100, Gödöllő, Hungary
| | - Balázs Kriszt
- Department of Environmental Safety, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, 1 Páter Károly, 2100, Gödöllő, Hungary
| | - Béla Urbányi
- Department of Aquaculture, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, 1 Páter Károly, 2100, Gödöllő, Hungary
| | - Sándor Szoboszlay
- Department of Environmental Safety, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, 1 Páter Károly, 2100, Gödöllő, Hungary
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Parlapani FF, Ferrocino I, Michailidou S, Argiriou A, Haroutounian SA, Kokokiris L, Rantsiou K, Boziaris IS. Microbiota and volatilome profile of fresh and chill-stored deepwater rose shrimp (Parapenaeus longirostris). Food Res Int 2020; 132:109057. [DOI: 10.1016/j.foodres.2020.109057] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 12/27/2019] [Accepted: 01/31/2020] [Indexed: 11/28/2022]
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Liu DY, Xiao X, Wang HH, Zhang QY, Zou YF. Characterization of the bacterial community of braised chicken, a specialty poultry product in China. Poult Sci 2019; 98:1055-1063. [PMID: 30137620 DOI: 10.3382/ps/pey375] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 07/22/2018] [Indexed: 11/20/2022] Open
Abstract
High-throughput sequencing of 16S rDNA and culture-dependent methods were applied to determine the bacterial communities of braised chicken during processing and storage. Environmental microorganisms were also evaluated using a sedimentation plate method. The results showed that airborne microbial counts in the braising room were higher than those in the control room (25°C, a space to lower the temperature of the chicken products) and storage rooms (4°C). The microbial identification technique 16S rDNA sequences has indicated that more than 229 operational bacterial species were associated with the microbiota present in braised chicken, largely involving Pseudomonas, Psychrobacter, Weissella, Kurthia, Brochothrix, and Lactobacillus in modified-atmosphere packing (MAP) products. The storage place and temperature during processing has great impact on the shelf life of the chicken. The microbes in MAP were significantly higher (P < 0.05) in 0 and 7th day, while the microbial activity in vacuum packaging (VP) was lower because the VP products were treated at higher temperature (100°C for 20 min). Within chicken products, Pseudomonas, Brochothrix, and Lactobacillus were most prevalent in MAP products. According to this research, in order to prolong the shelf life of meat products, proper storage places and packaging conditions are necessary to be improved to reduce the microbial load in the food products.
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Affiliation(s)
- Deng Yong Liu
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China
| | - Xiong Xiao
- College of Food Science and Technology, Bohai University, Jinzhou 121013, China
| | - Hu Hu Wang
- Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, China
| | - Qing Yong Zhang
- Department of Quality Assurance, Shandong Dezhou Braised Chicken Co., Ltd., Dezhou 253003, China
| | - Yu Feng Zou
- Collaborative Innovation Center of Meat Production and Processing, Quality and Safety Control, Nanjing Agricultural University, Nanjing 210095, China
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Dynamics of bacterial communities and interaction networks in thawed fish fillets during chilled storage in air. Int J Food Microbiol 2019; 293:102-113. [DOI: 10.1016/j.ijfoodmicro.2019.01.008] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 12/12/2018] [Accepted: 01/14/2019] [Indexed: 01/08/2023]
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