Zhang Hongzhi, Chen Wenjie, Lu Xiaoyu, Liang Yingying, Xiao Quan, Shi Tianqi, Yu Ying, Li Ruichao, Wu Huanyu
{"title":"Identification of Polymyxin Resistance Gene <i>mcr-10</i> from Different Food Samples in Shanghai, China.","authors":"Zhang Hongzhi, Chen Wenjie, Lu Xiaoyu, Liang Yingying, Xiao Quan, Shi Tianqi, Yu Ying, Li Ruichao, Wu Huanyu","doi":"10.1089/fpd.2024.0049","DOIUrl":"https://doi.org/10.1089/fpd.2024.0049","url":null,"abstract":"<p><p>This retrospective investigation (2019-2022) identified two plasmid-mediated <i>mcr-10</i> from 6800 food samples in Shanghai, China and localized in a conjugative plasmid (pEC1918-mcr10) in <i>Escherichia kobei</i> from ready-to-eat food with high-level polymyxin B resistance, and a nonconjugative plasmid (pEC2001-mcr10) in <i>E. coli</i> from chicken. These genes were adjacent to IS<i>Ec36</i>. This report highlights the emergence of <i>mcr-10</i> from food samples in Shanghai, China. Active surveillance of vital resistance genes along food production chain should be performed.</p>","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142344477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammad Anas, Showkat Ahmad Lone, Abdul Malik, Junaid Ahmad
{"title":"Antimicrobial Resistance and Public Health Risks Associated with Staphylococci Isolated from Raw and Processed Meat Products.","authors":"Mohammad Anas, Showkat Ahmad Lone, Abdul Malik, Junaid Ahmad","doi":"10.1089/fpd.2024.0081","DOIUrl":"10.1089/fpd.2024.0081","url":null,"abstract":"<p><p>This study aimed at evaluating the occurrence, antibiotic resistance, and β-lactamase production in <i>Staphylococcus</i> isolates recovered from meat and meat products, as well as the incidence of antimicrobial resistance (AMR) genes in these bacterial isolates. The prevalence of <i>Staphylococcus</i> was very high (75% and 50%) in street kebab and raw buffalo meat, respectively. The antibiotic resistance and susceptibility behavior showed that 82% of the <i>Staphylococcus</i> isolates were resistant to β-lactam antibiotics such as aztreonam, followed by methicillin (68%), oxacillin (54%), cefepime (36%), ceftazidime (34%), cefaclor (24%), cefotaxime (22%), ertapenem (4%), meropenem and imipenem (2%). Among non-β-lactam antibiotics, the most widespread resistance was observed against nalidixic acid (80%), sulfadiazine (76%), vancomycin (24%), erythromycin (10%), chloramphenicol (6%), and kanamycin and gatifloxacin (4%). One hundred percent of the isolates were susceptible to ciprofloxacin, tetracycline, gemifloxacin, and cefotaxime/clavulanic acid. <i>In vitro</i> drug-resistant characteristics revealed 36 distinct resistance patterns of <i>Staphylococcus</i> isolates, with 82% of them being multidrug resistant (MDR). Iodometric assay showed that 48% of the <i>Staphylococcus</i> isolates produced β-lactamase and 24% of the isolates were capable of producing extended-spectrum beta-lactamases phenotypically. The most commonly detected AMR gene was <i>mecA</i> (29.2%), followed by <i>Sul</i> 1 (25%) and <i>qnrS</i> and <i>qnrB</i> (20.8%), in <i>Staphylococcus</i> isolates. Current findings show widespread occurrence of MDR <i>Staphylococcus</i> strains in raw meat and street meat products, which is a potential risk to public health. Therefore, the study suggests strict monitoring of hygiene through the whole food chain and judicious use of antibiotics.</p>","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Inhibitory Activity and Mechanism of High-Voltage Prick Electric Field Against <i>Salmonella enteritidis</i> on Gelatin Plates and Selected Food Systems.","authors":"Haiyang Yan, Shuanglin Liu, Youhua Xian, Qingyan Liu, Yan Zhang, Yuan Yuan","doi":"10.1089/fpd.2024.0054","DOIUrl":"https://doi.org/10.1089/fpd.2024.0054","url":null,"abstract":"<p><p>The present study assesses the antibacterial effect of a high-voltage prick electric field (HVPEF) on <i>Salmonella enteritidis</i> on gelatin plates and selected food systems. The results showed that <i>S. enteritidis</i> were susceptible to HVPEF treatment, with a mortality rate of 98% on the gelatin plate at 13 kV for 15 min. The survival rate of <i>S. enteritidis</i> decreased linearly with time and then stabilized after a sharp decline. The morphological change and the loss of internal nucleic acids and proteins suggest that the cell membrane was damaged by HVPEF, appearing more permeable and less fluid. Compared with the untreated group, both reactive oxygen species (ROS) and malondialdehyde increased significantly in the treated groups. Flow cytometry results suggest that DNA was severely damaged, which led to cell death, as shown by the elevated levels of intracellular ROS and lipid peroxidation. The death rate of <i>S. enteritidis</i> on the food surface significantly rose with the increase of HVPEF intensity, reaching 91 ± 1.6% (salmon), 88.2 ± 2.2% (chicken breast), 72.9 ± 2.7% (sausage), and 66.9 ± 1.6% (steak), respectively, at 14 kV for 30 min. HVPEF resulted in no significant change in color or texture; the changes in total viable count and pH were less significant than in the untreated group. Finally, HVPEF treatment led to lower levels of total volatile base nitrogen and thiobarbituric acid reactive substances in chicken breasts, which potentially contributes to longer shelf life.</p>","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cui Xinhua, Wang Yang, Shi Jinyang, Xu Hongyue, Yu Wanlu, Zhu Mingmei, Qiu Jiazhang, Yu Lu
{"title":"The Effects of Baitouweng Decoction on <i>Salmonella</i> Typhimurium Infection and Its Underlying Mechanisms Evaluated by <i>In Vivo</i> and <i>In Vitro</i> Experiments, Network Pharmacology Analysis, and Molecular Docking Technology.","authors":"Cui Xinhua, Wang Yang, Shi Jinyang, Xu Hongyue, Yu Wanlu, Zhu Mingmei, Qiu Jiazhang, Yu Lu","doi":"10.1089/fpd.2023.0169","DOIUrl":"https://doi.org/10.1089/fpd.2023.0169","url":null,"abstract":"<p><p><i>Salmonella</i> Typhimurium is a foodborne pathogen threatening livestock and human health. It is highly resistant to commonly used clinical antibiotics, and it is urgently needed to explore new anti-<i>Salmonella</i> treatment schemes. In this study, first, our <i>in vivo</i> mouse experiments showed that Baitouweng decoction (BTW), a classical Traditional Chinese Medicine (TCM) prescription, had good efficacy against <i>Salmonella</i> Typhimurium infection: mitigating weight loss of mice; lowering the bacterial load of liver, spleen, and colon; reducing the production of serum inflammatory factors (interleukin-1β and tumor necrosis factor-α); and decreasing histological index scores than that in the <i>Salmonella</i> Typhimurium infection group. Furthermore, we explored the potential active components and molecular mechanism of BTW in the treatment of <i>Salmonella</i> Typhimurium infection. A total of 465 compounds of BTW were retrieved from herb website and 227 bioactive compounds were identified, 911 potential BTW-related targets and 1,602 disease targets of <i>Salmonella</i> Typhimurium infection were acquired by ten public analytical databases, among them, 188 genes were overlay targets of BTW-<i>Salmonella</i> Typhimurium; String, Metascape, and Cytoscape plug-in Molecular Complex Detection and ClueGo analysis pointed that BTW exerted an anti-<i>Salmonella</i> effect through a multicomponent, multitarget, and multipathway manner, including 10 hub targets (TNF, AKT CASP3, ALB, EGFR, JUN, MAPK, STAT3, VEGFA, and TP53) and 94 pathways such as cell apoptosis, inflammation, and metabolism. Finally, AutoDock Vina showed that the hub target AKT1 with menispermine and quercetin had good binding energy, which was confirmed by the <i>in vitro</i> cellular thermal shift assay and drug affinity responsive target stability assay. This study laid the foundation for further study of BTW mechanism and for further development of BTW anti-<i>Salmonella</i>.</p>","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142282796","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jihyun Choi,Jong Hyun Shin,Suyeon Park,Ji Young Choi,Jin Yang Baek,Kyungmin Huh,Doo Ryeon Chung,Ki Tae Kwon,Mi-Ran Seo,Seung-Hyun Jung,Yeun-Jun Chung,Kwan Soo Ko
{"title":"Phylogenetic Analysis Based on Whole Genome Sequences, Antibiotic Resistance, and Virulence of Salmonella enterica Clinical Isolates from South Korea.","authors":"Jihyun Choi,Jong Hyun Shin,Suyeon Park,Ji Young Choi,Jin Yang Baek,Kyungmin Huh,Doo Ryeon Chung,Ki Tae Kwon,Mi-Ran Seo,Seung-Hyun Jung,Yeun-Jun Chung,Kwan Soo Ko","doi":"10.1089/fpd.2024.0020","DOIUrl":"https://doi.org/10.1089/fpd.2024.0020","url":null,"abstract":"Salmonella is a major cause of foodborne disease and frequently causes human salmonellosis in South Korea. In this study, we investigated the genome diversity, antimicrobial resistance, and virulence of clinical isolates of Salmonella enterica from South Korea. We collected 42 S. enterica subsp. enterica isolates from two hospitals in South Korea. Whole genome sequences were determined. Serovars and sequence types (STs) based on multilocus sequence typing (MLST) were identified from whole genome sequences. Phylogenetic trees based on whole genome sequences and a minimum spanning tree based on MLST were constructed. Human serum resistance assays and gentamicin protection assays were performed to assess in vitro virulence. Nineteen serovars were identified among 42 clinical isolates, including nine Salmonella Typhi isolates. There were inconsistencies between serogroups and phylogenetic clusters in the phylogenetic tree and minimum spanning tree, but high clonality of S. Typhi was observed. Salmonella Typhi isolates were divided into two clusters, corresponding to ST1 and ST2. Isolates of serovars Typhimurium and I4,[5],12:i:- clustered into a group, and a hybrid isolate between the two serovars was identified. Four ciprofloxacin-resistant isolates were identified among nine S. Typhi isolates, and all isolates of S. Enteritidis and S. Panama were resistant to colistin. The gentamicin protection assay revealed that serogroup D1 was significantly less virulent than the other serogroups. Our study suggests high diversity of S. enterica clinical isolates from South Korea and non-monophyly of serogroups. In addition, subgroups of S. Typhi isolates and a hybrid isolate between serovars Typhimurium and I4,[5],12:i:- were identified.","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":"15 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142254941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Evrim Gunes Altuntas,Asena Aslihan Celık,Busra Sevım,Kenan Can Tok,Mehmet Gumustas,Hatice Mergen,Vijay K Juneja
{"title":"A Novel Bioprotective Strain of Lactiplantibacillus plantarum F2-Physiological, Genetical, and Antimicrobial Characterization.","authors":"Evrim Gunes Altuntas,Asena Aslihan Celık,Busra Sevım,Kenan Can Tok,Mehmet Gumustas,Hatice Mergen,Vijay K Juneja","doi":"10.1089/fpd.2024.0005","DOIUrl":"https://doi.org/10.1089/fpd.2024.0005","url":null,"abstract":"Lactiplantibacillus plantarum is a member of lactic acid bacteria that improves the quality of fermented foods while also having a positive impact on human health. In this study, L. plantarum F2 was studied for characteristics such as biochemical and genetic identification, metabolite production, antimicrobial activity, and plasmid content. This strain exerts antimicrobial activity against some Gram-positive and Gram-negative pathogens (Listeria monocytogenes, Staphylococcus aureus, Salmonella, and Escherichia coli) with inhibition zone diameters ranging between 17.0 and 29.0 mm; it can ferment glucose, arabinose, galactose, lactose, and demonstrated the ability to grow at high temperature (50°C). Another physiological specification of the strain was the morphology of the isolate in selective medium, the de Man, Rogosa, Sharpe medium (MRS medium containing triphenyl tetrazolium chloride), which exhibits a chromogenic colony (characterized as purple colonies) on the modified-MRS (mMRS) medium. Metabolites such as lactic acid and diacetyl production of the strain F2 were also investigated using chromatography and found to be 10.07 and 0.05 µg/mL, respectively. The peptides of the isolate's cell-free supernatant were determined to be ∼80 kDa, and finally, the plasmid isolated from the strain F2 was identified as L. plantarum strain KLDS1.0386 plasmid p4, which may be responsible for some characteristic properties, such as antimicrobial peptide production of the strain.","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":"68 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142190590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fernanda Danielle Melo, Heloíse Peterle, Ricardo Antonio Pilegi Sfaciotte, Mateus Felipe Schneider, Leandro Parussolo, Sheila Rezler Wosiacki, Ubirajara Maciel da Costa, Sandra Maria Ferraz
{"title":"Phenotypic and Genotypic of Antimicrobial Resistance Profile of <i>Staphylococcu</i>s Spp. Isolated from Raw Milk and Artisanal Cheese.","authors":"Fernanda Danielle Melo, Heloíse Peterle, Ricardo Antonio Pilegi Sfaciotte, Mateus Felipe Schneider, Leandro Parussolo, Sheila Rezler Wosiacki, Ubirajara Maciel da Costa, Sandra Maria Ferraz","doi":"10.1089/fpd.2024.0037","DOIUrl":"https://doi.org/10.1089/fpd.2024.0037","url":null,"abstract":"<p><p><i>Staphylococcus aureus</i> and a few species of coagulase negative are frequently associated with food poisoning. Raw milk and dairy products are among the foods usually associated with outbreaks due to staphylococcal intoxication. This study aimed to determine phenotypic and genotypic antimicrobial resistance profiles to beta-lactam drugs in <i>Staphylococcus</i> coagulase positive (CoPS) and negative (CoNS) isolates. A total of 58 CoPS and 45 CoNS isolates recovered from raw milk and artisanal cheese from Santa Catarina were analyzed. All isolates (<i>n</i> = 103) were subjected to antimicrobial susceptibility testing. High levels of resistance to penicillin (41% of CoPS and 31% of CoNS), amoxicillin (40% CoPS), ampicillin (36% CoPS), and sulfamethoxazole-trimethoprim (35% CoNS) were observed. Twenty six percent of the isolates (18 CoPS and 9 CoNS) exhibited multiresistance profile; which means, they were resistant to at least three different classes of the antimicrobial drugs. Detection of resistance genes (<i>mec</i>A, <i>mec</i>C, and <i>bla</i>Z) was performed using multiplex polymerase chain reaction. Twelve isolates (9 CoPS and 3 CoNS) were positive for <i>mec</i>A, whereas 10 strains (4 CoPS and 6 CoNS) were positive for <i>bla</i>Z. The detection of resistant and multidrug resistant isolates emphasizes the necessity to develop strategies to better comply with good manufacturing practices and health care guidelines.</p>","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142132282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
James A Barkley, Robert L Scharff, Joan-Miquel Balada-Llasat, Barbara Kowalcyk
{"title":"Impact of the COVID-19 Pandemic on Foodborne Disease Healthcare-Seeking Behavior and Diagnoses at a Large Academic Medical System.","authors":"James A Barkley, Robert L Scharff, Joan-Miquel Balada-Llasat, Barbara Kowalcyk","doi":"10.1089/fpd.2023.0092","DOIUrl":"https://doi.org/10.1089/fpd.2023.0092","url":null,"abstract":"<p><p>The objective of this study was to examine changes in healthcare-seeking behaviors and diagnostic practices around foodborne illness during the COVID-19 pandemic in a large university-based health system. A retrospective cohort study of individuals diagnosed with pathogens commonly transmitted through food between 2015 and 2020 was undertaken using electronic medical record data. Regression models were used to compare measured incidence rates of various foodborne pathogens as well as associated healthcare-seeking behaviors during the pandemic year of 2020 to previous years. Incidence of campylobacteriosis, cholera, and norovirus in 2020 significantly decreased, respectively, by 65.5% (<i>p</i> < 0.01), 90.1% (<i>p</i> = 0.02), and 73.0% (<i>p</i> = 0.03) compared with an average from 2017- to 019. Average annual visits for patients included in our sample significantly increased by 8.0% when comparing the average from 2017-2019 to 2020 (<i>p</i> < 0.01). These results suggest that the pandemic impacted healthcare use related to foodborne disease either due to reduced exposure to foodborne pathogens or reduced willingness to seek healthcare.</p>","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mycobiota, Total Aflatoxins, And Ochratoxin A of Black And Green Cumin.","authors":"Helal F Al-Harthi","doi":"10.1089/fpd.2024.0096","DOIUrl":"https://doi.org/10.1089/fpd.2024.0096","url":null,"abstract":"<p><p>Because of the medical importance of cumin as well as it being one of the food additives to many Saudi dishes, there was a need to study the fungal load of this type of spice. This study aimed to determine the mycological profile of the retail black and green cumin distributed in different markets at western region, Saudi Arabia, using the dilution plat method on dichloran 18% glycerol (DG18) agar and incubation at 25°C. Using morphological criteria and molecular markers (internal transcribed spacer sequence), 39 species belonging to 18 genera were collected from different black cumin (33 species belonging to 17 genera) and green cumin (25 species belonging to 9 genera). <i>Alternaria alternata, Aspergillus flavus, A. niger, A. ochraceus, Cladosporium cladosporioides,</i> and <i>Stemphylium botryosum</i> were the most prevalent. Black cumin harbors fungal counts reaching 545 colony-forming units (CFU)/g, while green cumin included 500 CFU/g. Also, the natural occurrence of aflatoxins and ochratoxin A was also measured. Seventy-two cumin samples (90% of tested samples) showed toxin contamination. Aflatoxins and ochratoxin A ranged from 9.35 to 3.9 PPB in black cumin samples and from 4.08 to 5.75 PPB in green cumin samples.</p>","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Miaorong Xiao, Ao Shen, Xiaodi Chen, Tongtong Lu, Jin Zhang, Shuzhen Li, Weiwei Yang
{"title":"Preparation and Keep-Refreshing Effect of Chitosan/Sea Buckthorn Polysaccharide Composite Film on the Preservation of Yellow Cherry Tomatoes.","authors":"Miaorong Xiao, Ao Shen, Xiaodi Chen, Tongtong Lu, Jin Zhang, Shuzhen Li, Weiwei Yang","doi":"10.1089/fpd.2024.0025","DOIUrl":"https://doi.org/10.1089/fpd.2024.0025","url":null,"abstract":"<p><p>In this study, sea buckthorn polysaccharides (SBP) were added as functional substances to chitosan (CS), and chitosan/sea buckthorn polysaccharide (SCS) composite films were prepared using the casting method. The effects of SBP addition on the optical properties, physical properties, mechanical properties, structure, antioxidant activity, and antibacterial activity of the SCS composite films were studied, and the prepared SCS composite films were used to preserve yellow cherry tomatoes. The results showed that SCS composite films exhibited good UV resistance, water solubility, and antioxidant activity, but its apparent structure, hydrophobicity, and mechanical properties needed further improvement. Meanwhile, SBP has inhibitory effects on all 8 experimental strains. In addition, the SCS composite film with the addition of 200 mg/L SBP could reduce the weight loss rate of yellow cherry tomatoes, maintain hardness, delay the decrease of total soluble solids, titratable acid, and Vitamin C content, and inhibit the accumulation of malondialdehyde. SCS composite films are beneficial for enhancing the quality of yellow cherry tomatoes during storage, and their application in fruit and vegetable preservation has development prospects.</p>","PeriodicalId":12333,"journal":{"name":"Foodborne pathogens and disease","volume":" ","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}