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Han JW, Lee N, Kim HJ, Moon SJ, Lee SC, Kim HJ. Weissella sp. SNUL2 as potential probiotics with broad-spectrum antimicrobial activities. Heliyon 2024; 10:e28481. [PMID: 38576583 PMCID: PMC10990963 DOI: 10.1016/j.heliyon.2024.e28481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/06/2024] Open
Abstract
Probiotics have been applied to a wide range of bacteria, causing gastrointestinal and vaginal infections. However, probiotics generally possess limited antimicrobial spectra and are primarily utilized as dietary supplements. Recognizing the need for more versatile probiotics, this study focuses on isolating and characterizing strains suitable for antibiotic replacement. Among these strains, Weissella sp. SNUL2, derived from a traditional fermented food in Korea (i.e., Sikhae), emerged as a promising candidate. The correlation between optical density at 600 nm and colony-forming units was verified and applied in subsequent experiments. To assess the therapeutic potential of probiotics, antibacterial tests were conducted using a microplate reader to evaluate the inhibition of 60 bacterial strains (including common foodborne pathogens) induced by Weissella sp. SNUL2 cell-free supernatant (CFS). The results confirmed its broad-spectrum antibacterial properties compared to previously known probiotics. Furthermore, enzymatic treatment with proteinases (trypsin and pepsin) and a time-kill assay were conducted to elucidate the nature of the antibacterial substance in Weissella sp. SNUL2 CFS. Through sequential chromatography involving gel filtration and ion-exchange chromatography, specific fractions with enhanced antibacterial properties were identified. LC-MS/MS analysis of the secretome fraction revealed the presence of various proteins from the C39 family, peptidoglycan endopeptidases, and N-acetylmuramoyl-l-alanine amidase domain-containing protein precursors. Hence, the combined action of these proteins may contribute to Weissella sp. SNUL2's broad antimicrobial activity.
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Affiliation(s)
- Jae Won Han
- Graduate School of International Agricultural Technology, Seoul National University, Pyeongchang 25354, Republic of Korea
| | - Nari Lee
- Food Safety and Distribution Research Group, Research Division of Strategic Food Technology, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Hea Joon Kim
- Graduate School of International Agricultural Technology, Seoul National University, Pyeongchang 25354, Republic of Korea
| | - Sung Jin Moon
- Department of Internal Medicine, International St. Mary's Hospital, Catholic Kwandong University, Incheon 22711, Republic of Korea
| | - Soo Chan Lee
- South Texas Center of Emerging Infectious Diseases (STCEID), Department of Molecular Microbiology and Immunology, University of Texas at San Antonio, San Antonio, TX 78249, USA
| | - Hyo Jin Kim
- Graduate School of International Agricultural Technology, Seoul National University, Pyeongchang 25354, Republic of Korea
- Institutes of Green Bio Science and Technology, Seoul National University, Pyeongchang 25354, Republic of Korea
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2
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Liu M, Yin F, Zhao W, Tian P, Zhou Y, Jia Z, Huang K, Ding Y, Xiao J, Niu W, Wang X. Diversity of Culturable Bacteria from the Coral Reef Areas in the South China Sea and Their Agar-Degrading Abilities. Microorganisms 2024; 12:187. [PMID: 38258013 PMCID: PMC10818321 DOI: 10.3390/microorganisms12010187] [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: 12/28/2023] [Revised: 01/15/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
The South China Sea (SCS) is abundant in marine microbial resources with high primary productivity, which is crucial for sustaining the coral reef ecosystem and the carbon cycle. Currently, research on the diversity of culturable bacteria in the SCS is relatively extensive, yet the culturable bacteria in coral reefs has been poorly understood. In this study, we analyzed the bacterial community structure of seawater samples among Daya Bay (Fujian Province), Qionghai (Hainan Province), Xisha Islands, and the southern South China Sea based on culturable methods and detected their abilities for agar degradation. There were 441 bacterial strains, belonging to three phyla, five classes, 43 genera, and 101 species, which were isolated by marine agar 2216E (MA; Becton Dickinson). Strains within Gammaproteobacteria were the dominant group, accounting for 89.6% of the total bacterial isolates. To investigate vibrios, which usually correlated with coral health, 348 isolates were obtained from TCBS agar, and all isolates were identified into three phylum, three classes, 14 orders, 25 families, and 48 genera. Strains belonging to the genus Vibrio had the greatest number (294 strains), indicating the high selectivity of TCBS agar for vibrios. Furthermore, nineteen strains were identified as potentially novel species according to the low 16S rRNA gene similarity (<98.65%), and 28 strains (15 species) had agar-degrading ability. These results indicate a high diversity of culturable bacteria in the SCS and a huge possibility to find novel and agar-degrading species. Our study provides valuable microbial resources to maintain the stability of coral ecosystems and investigate their roles in the marine carbon cycle.
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Affiliation(s)
- Mei Liu
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, 5 Yushan Road, Qingdao 266003, China; (M.L.); (F.Y.); (W.Z.); (Y.Z.); (K.H.); (Y.D.)
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266100, China
- Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266071, China
| | - Fu Yin
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, 5 Yushan Road, Qingdao 266003, China; (M.L.); (F.Y.); (W.Z.); (Y.Z.); (K.H.); (Y.D.)
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266100, China
- Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266071, China
| | - Wenbin Zhao
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, 5 Yushan Road, Qingdao 266003, China; (M.L.); (F.Y.); (W.Z.); (Y.Z.); (K.H.); (Y.D.)
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266100, China
- Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266071, China
| | - Peng Tian
- Laboratory of Marine Biodiversity Research, Third Institute of Oceanography, Ministry of Natural Resources, 178 Daxue Road, Xiamen 361005, China; (P.T.); (Z.J.); (J.X.)
- Nansha Islands Coral Reef Ecosystem National Observation and Research Station, Guangzhou 510300, China
| | - Yi Zhou
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, 5 Yushan Road, Qingdao 266003, China; (M.L.); (F.Y.); (W.Z.); (Y.Z.); (K.H.); (Y.D.)
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266100, China
- Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266071, China
| | - Zhiyu Jia
- Laboratory of Marine Biodiversity Research, Third Institute of Oceanography, Ministry of Natural Resources, 178 Daxue Road, Xiamen 361005, China; (P.T.); (Z.J.); (J.X.)
- Nansha Islands Coral Reef Ecosystem National Observation and Research Station, Guangzhou 510300, China
| | - Keyi Huang
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, 5 Yushan Road, Qingdao 266003, China; (M.L.); (F.Y.); (W.Z.); (Y.Z.); (K.H.); (Y.D.)
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266100, China
- Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266071, China
| | - Yunqi Ding
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, 5 Yushan Road, Qingdao 266003, China; (M.L.); (F.Y.); (W.Z.); (Y.Z.); (K.H.); (Y.D.)
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266100, China
- Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266071, China
| | - Jiaguang Xiao
- Laboratory of Marine Biodiversity Research, Third Institute of Oceanography, Ministry of Natural Resources, 178 Daxue Road, Xiamen 361005, China; (P.T.); (Z.J.); (J.X.)
- Nansha Islands Coral Reef Ecosystem National Observation and Research Station, Guangzhou 510300, China
| | - Wentao Niu
- Laboratory of Marine Biodiversity Research, Third Institute of Oceanography, Ministry of Natural Resources, 178 Daxue Road, Xiamen 361005, China; (P.T.); (Z.J.); (J.X.)
- Nansha Islands Coral Reef Ecosystem National Observation and Research Station, Guangzhou 510300, China
| | - Xiaolei Wang
- College of Marine Life Sciences, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, 5 Yushan Road, Qingdao 266003, China; (M.L.); (F.Y.); (W.Z.); (Y.Z.); (K.H.); (Y.D.)
- Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266100, China
- Laboratory for Marine Ecology and Environmental Science, Laoshan Laboratory, Qingdao 266071, China
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3
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Wu Q, Liu J, Malakar PK, Pan Y, Zhao Y, Zhang Z. Modeling naturally-occurring Vibrio parahaemolyticus in post-harvest raw shrimps. Food Res Int 2023; 173:113462. [PMID: 37803786 DOI: 10.1016/j.foodres.2023.113462] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/03/2023] [Accepted: 09/10/2023] [Indexed: 10/08/2023]
Abstract
There is little known about the growth and survival of naturally-occurring Vibrio parahaemolyticus in harvested raw shrimps. In this study, the fate of naturally-occurring V. parahaemolyticus in post-harvest raw shrimps was investigated from 4℃ to 30℃ using real-time PCR combined with propidium monoazide (PMA-qPCR). The Baranyi-model was used to fit the growth and survival data. A square root model and non-linear Arrhenius model was then used to quantify the parameters derived from the Baranyi-model. The results showed that naturally-occurring V. parahaemolyticus were slowly inactivated at 4℃ and 7℃ with deactivation rates of 0.019 Log CFU/g/h and 0.025 Log CFU/g/h. Conversely, at 15, 20, 25, and 30 °C, the average maximum growth rates (μmax) of naturally-occurring V. parahaemolyticus were determined to be 0.044, 0.105, 0.179 and 0.336 Log CFU/g/h, accompanied by the average lag phases (λ) of 15.5 h, 7.3 h, 4.4 h and 3.7 h. The validation metrics, Af and Bf, for both the square root model and non-linear, indicating that the model had a good ability to predict the growth behavior of naturally-occurring V. parahaemolyticus in post-harvest raw shrimps. Furthermore, a comparative exploration between the growth of artificially contaminated V. parahaemolyticus in cooked shrimps and naturally-occurring V. parahaemolyticus in post-harvest raw shrimps revealed intriguing insights. While no substantial distinction in deactivation rates emerged at 4 °C and 7 °C (P > 0.05), a discernible disparity in growth rates was observable at 15 °C, 20 °C, 25 °C, and 30 °C, with the former surpassing the latter. Which indicated the risk of V. parahaemolyticus using models derived from cooked shrimps may be biased. Our study also unveiled a discernible seasonal effect. The μmax and λ of V. parahaemolyticus in shrimps harvested in summer were similar to those harvested in autumn, while the initial and maximum bacterial concentration harvested in summer were higher than those harvested in autumn. This predictive microbiology model of naturally-occurring V. parahaemolyticus in raw shrimps provides relevance to modelling growth in situ.
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Affiliation(s)
- Qian Wu
- College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China; International Research Center for Food and Health, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China
| | - Jing Liu
- College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China; International Research Center for Food and Health, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China
| | - Pradeep K Malakar
- College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China; International Research Center for Food and Health, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China
| | - Yingjie Pan
- College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China; International Research Center for Food and Health, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China; Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture and Rural Affairs, 999# Hu Cheng Huan Road, Shanghai 201306, China; Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, 999# Hu Cheng Huan Road, Shanghai 201306, China
| | - Yong Zhao
- College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China; International Research Center for Food and Health, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China; Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture and Rural Affairs, 999# Hu Cheng Huan Road, Shanghai 201306, China; Shanghai Engineering Research Center of Aquatic-Product Processing & Preservation, 999# Hu Cheng Huan Road, Shanghai 201306, China.
| | - Zhaohuan Zhang
- College of Food Science and Technology, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China; International Research Center for Food and Health, Shanghai Ocean University, 999# Hu Cheng Huan Road, Shanghai 201306, China.
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4
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Wei X, Gu Q, Feng Y, Zhang Y, Li Y, Zhang S, Zhang J, Wu S, Yang X, Ye Q, Ding Y, Wang J, Chen M, Wu Q. Sensitive and Selective Detection of Enterococcus faecalis Using a New Turn-on Fluorogenic β-glucosidase Substrate Combined with a Modified Selective Broth. Photochem Photobiol 2023; 99:68-77. [PMID: 35699359 DOI: 10.1111/php.13662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 06/02/2022] [Indexed: 01/25/2023]
Abstract
A new, simple-to-synthesize and sensitive turn-on fluorogenic substrate (CFMU-Glu) for β-glucosidase activity was developed. This probe was based on a 7-hydroxycoumarin derivative (CFMU) that could emit green fluorescence and had the low pKa value of 5.61 ± 0.01. CFMU-Glu could be used for sensitive monitoring of the almond βGLU and Enterococcus faecalis (E. faecalis) at the optimal pHs of 6.50 and 7.00, respectively. Moreover, a new sensitive and selective fluorogenic broth (PBF-B) for E. faecalis, utilizing CFMU-Glu and polymyxin B, was also developed. Polymyxin B was discovered to can significantly improve the detection selectivity and signal intensity. The proposed 4-four method using PBF-B and a microcentrifuge tube could provide fluorogenic detection limits of 5.01 × 104 and 1.0 × 105 CFU mL-1 by fluorescence microplate reader and naked eye, respectively; it could also provide a turn-on chromogenic detection limit of 1.0 × 106 CFU mL-1 by naked eye. The proposed method could detect 8 CFU mL-1 of E. faecalis in drinking water, Liangcha (herbal tea) and milk samples within 10 h, without pre-enrichment.
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Affiliation(s)
- Xianhu Wei
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qihui Gu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Ying Feng
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Youxiong Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Ying Li
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Shuhong Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Jumei Zhang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Shi Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Xiaojuan Yang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qinghua Ye
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Yu Ding
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Juan Wang
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Qingping Wu
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
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5
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Vibrio parahaemolyticus Isolates from Asian Green Mussel: Molecular Characteristics, Virulence and Their Inhibition by Chitooligosaccharide-Tea Polyphenol Conjugates. Foods 2022; 11:foods11244048. [PMID: 36553790 PMCID: PMC9778124 DOI: 10.3390/foods11244048] [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: 11/14/2022] [Revised: 12/06/2022] [Accepted: 12/12/2022] [Indexed: 12/16/2022] Open
Abstract
Fifty isolates of Vibrio parahaemolyticus were tested for pathogenicity, biofilm formation, motility, and antibiotic resistance. Antimicrobial activity of chitooligosaccharide (COS)-tea polyphenol conjugates against all isolates was also studied. Forty-three isolates were randomly selected from 520 isolates from Asian green mussel (Perna viridis) grown on CHROMagarTM Vibrio agar plate. Six isolates were acquired from stool specimens of diarrhea patients. One laboratory strain was V. parahaemolyticus PSU.SCB.16S.14. Among all isolates tested, 12% of V. parahaemolyticus carried the tdh+trh- gene and were positive toward Kanagawa phenomenon test. All of V. parahaemolyticus isolates could produce biofilm and showed relatively strong motile ability. When COS-catechin conjugate (COS-CAT) and COS-epigallocatechin-3-gallate conjugate (COS-EGCG) were examined for their inhibitory effect against V. parahaemolyticus, the former showed the higher bactericidal activity with the MBC value of 1.024 mg/mL against both pathogenic and non-pathogenic strains. Most of the representative Asian green mussel V. parahaemolyticus isolates exhibited high sensitivity to all antibiotics, whereas one isolate showed the intermediate resistance to cefuroxime. However, the representative clinical isolates were highly resistant to nine types of antibiotics and had multiple antibiotic resistance (MAR) index of 0.64. Thus, COS-CAT could be used as potential antimicrobial agent for controlling V. parahaemolyticus-causing disease in Asian green mussel.
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Yuan N, Yang H, Zhang Y, Xu H, Lu X, Xu H, Zhang W. Development of real‐time fluorescence saltatory rolling circle amplification for rapid detection of
Vibrio parahaemolyticus
in seafood. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ning Yuan
- College of Food Science and Technology Hebei Agricultural University Baoding 071001 China
- College of Science and Technology Hebei Agricultural University Cangzhou 061100 China
| | - Haoyu Yang
- Department of Sports Work Hebei Agricultural University Baoding 071001 China
| | - Yunzhe Zhang
- College of Food Science and Technology Hebei Agricultural University Baoding 071001 China
| | - Hancong Xu
- College of Food Science and Technology Hebei Agricultural University Baoding 071001 China
| | - Xin Lu
- College of Science and Technology Hebei Agricultural University Cangzhou 061100 China
| | - Hui Xu
- College of Food Science and Technology Hebei Agricultural University Baoding 071001 China
- College of Science and Technology Hebei Agricultural University Cangzhou 061100 China
| | - Wei Zhang
- College of Food Science and Technology Hebei Agricultural University Baoding 071001 China
- College of Science and Technology Hebei Agricultural University Cangzhou 061100 China
- College of Life Sciences Hebei Agricultural University Baoding 071001 China
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Lorenzoni G, Tedde G, Mara L, Bazzoni AM, Esposito G, Salza S, Piras G, Tedde T, Bazzardi R, Arras I, Uda MT, Virgilio S, Meloni D, Mudadu AG. Presence, Seasonal Distribution, and Biomolecular Characterization of Vibrio parahaemolyticus and Vibrio vulnificus in Shellfish Harvested and Marketed in Sardinia (Italy) between 2017 and 2018. J Food Prot 2021; 84:1549-1554. [PMID: 33956961 DOI: 10.4315/jfp-21-059] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 05/01/2021] [Indexed: 02/07/2023]
Abstract
ABSTRACT In the present study, we investigated the presence, seasonal distribution, and biomolecular characteristics of Vibrio parahaemolyticus and Vibrio vulnificus in samples of bivalve mollusks (Mytilus galloprovincialis, Crassostrea gigas, and Ruditapes decussatus) harvested and marketed in Sardinia (Italy) between 2017 and 2018. A total of 435 samples were submitted for qualitative determination of Vibrio spp., V. parahaemolyticus, and V. vulnificus. Potentially enteropathogenic isolates were detected with biomolecular methods. The overall prevalence of Vibrio spp. was 7.6%. The highest Vibrio prevalence was found in R. decussatus (8.3%). The prevalences of V. parahaemolyticus and V. vulnificus were 2.7 and 4.8%, respectively. Higher prevalences of V. parahaemolyticus and V. vulnificus were found in R. decussatus (4.2%) and C. gigas (6.2%), respectively. Only two pathogenic V. parahaemolyticus strains were recovered (genotypes: tdh- and trh+; tdh+ and trh-), both from M. galloprovincialis. None of the isolates were tdh+ and trh+. Pathogenic Vibrio infections are often underestimated, and human infections are increasing in Europe. European data on the true distribution of Vibrionaceae are scarce, and the results of the present study highlight the need of constant monitoring to update the distribution of pathogenic vibrios. HIGHLIGHTS
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Affiliation(s)
- Giuseppa Lorenzoni
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
| | - Giuseppe Tedde
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
| | - Laura Mara
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
| | - Anna Maria Bazzoni
- Agenzia Regionale per la Protezione dell'Ambiente della Sardegna, Via Rockefeller 58/60, 07100 Sassari, Italy
| | - Giuseppe Esposito
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Sara Salza
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
| | - Gabriella Piras
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
| | - Tiziana Tedde
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
| | - Riccardo Bazzardi
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
| | - Igor Arras
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
| | - Maria Teresa Uda
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
| | - Sebastiano Virgilio
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
| | - Domenico Meloni
- Dipartimento di Medicina Veterinaria, Università degli Studi di Sassari, Via Vienna 2, 07100 Sassari, Italy
| | - Alessandro Graziano Mudadu
- Istituto Zooprofilattico Sperimentale della Sardegna, Struttura Complessa di Microbiologia e Ispezione degli Alimenti di Origine Animale, Via Duca degli Abruzzi 8, 07100 Sassari, Italy
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8
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Petrucci S, Costa C, Broyles D, Dikici E, Daunert S, Deo S. On-site detection of food and waterborne bacteria - current technologies, challenges, and future directions. Trends Food Sci Technol 2021; 115:409-421. [PMID: 34267423 DOI: 10.1016/j.tifs.2021.06.054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
With the rise in outbreaks of pathogenic bacteria in both food and water resulting in an increased instance of infection, there is a growing public health problem in both developed and developing countries. In this increasing threat the most effective method for control and prevention is rapid and cost-effective detection. Research has shifted in recent years towards the development of rapid and on-site assays for the detection of these kinds of bacteria. However, there are still some limitations in the implementation of these assays in the field. This article discusses the current on-site detection methods. Current scope of advancements and limitations in the development or use of these on-site technologies for food and waterborne bacterial detection is evaluated in this study. With the continued development of these technologies, on-site detection will continue to impact many areas of public health. As these methods continue to improve and diversify further, on-site detection could become more widely implemented in food and water analysis.
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Affiliation(s)
- Sabrina Petrucci
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136 United States.,Dr. John T. MacDonald Foundation Biomedical Nanotechnology Institute, Miller School of Medicine, University of Miami, Miami, FL 33136 United States
| | - Connor Costa
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136 United States.,Dr. John T. MacDonald Foundation Biomedical Nanotechnology Institute, Miller School of Medicine, University of Miami, Miami, FL 33136 United States
| | - David Broyles
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136 United States.,Dr. John T. MacDonald Foundation Biomedical Nanotechnology Institute, Miller School of Medicine, University of Miami, Miami, FL 33136 United States
| | - Emre Dikici
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136 United States.,Dr. John T. MacDonald Foundation Biomedical Nanotechnology Institute, Miller School of Medicine, University of Miami, Miami, FL 33136 United States
| | - Sylvia Daunert
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136 United States.,Dr. John T. MacDonald Foundation Biomedical Nanotechnology Institute, Miller School of Medicine, University of Miami, Miami, FL 33136 United States.,Clinical and Translational Science Institute, Miller School of Medicine, University of Miami, Miami, FL 33136 United States
| | - Sapna Deo
- Department of Biochemistry and Molecular Biology, Miller School of Medicine, University of Miami, Miami, FL 33136 United States.,Dr. John T. MacDonald Foundation Biomedical Nanotechnology Institute, Miller School of Medicine, University of Miami, Miami, FL 33136 United States
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Zampieri A, Babbucci M, Carraro L, Milan M, Fasolato L, Cardazzo B. Combining Culture-Dependent and Culture-Independent Methods: New Methodology Insight on the Vibrio Community of Ruditapes philippinarum. Foods 2021; 10:1271. [PMID: 34204939 PMCID: PMC8228196 DOI: 10.3390/foods10061271] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 05/30/2021] [Accepted: 05/31/2021] [Indexed: 01/01/2023] Open
Abstract
Vibrios represent a natural contaminant of seafood products. V. alginolyticus, V. cholerae, V. parahaemolyticus and V. vulnificus are the most hazardous species to human health. Given the worldwide consumption of mollusc products, reliable detection of Vibrio species is recommended to prevent human vibriosis. In this study, culture-dependent and -independent methods were compared and integrated to implement knowledge of the Manila clam Vibrio community composition. Here, 16S and recA-pyrH metabarcoding were applied to compare the microbial communities of homogenate clam samples (culture-independent method) and their culture-derived samples plated on three different media (culture-dependent method). In addition, a subset of plated clam samples was investigated using shotgun metagenomics. Homogenate metabarcoding characterized the most abundant taxa (16S) and Vibrio species (recA-pyrH). Culture-dependent metabarcoding detected the cultivable taxa, including rare species. Moreover, marine agar medium was found to be a useful substrate for the recovery of several Vibrio species, including the main human pathogenic ones. The culture-dependent shotgun metagenomics detected all the main human pathogenic Vibrio species and a higher number of vibrios with respect to the recA-pyrH metabarcoding. The study revealed that integration of culture-dependent and culture-independent methods might be a valid approach for the characterization of Vibrio biodiversity.
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Affiliation(s)
| | | | | | | | - Luca Fasolato
- Department of Comparative Biomedicine and Food Science, University of Padova, Agripolis, Viale dell’Università 16, 35020 Legnaro, Italy; (A.Z.); (M.B.); (L.C.); (M.M.); (B.C.)
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