检索结果-南通市图书馆

META-ANALYSIS OF PREVALENCE OF foodborne pathogens IN CHINESE FOOD COMMODITIES BETWEEN 2007 AND 2016

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

META-ANALYSIS OF PREVALENCE OF FOODBORNE PATHOGENS IN CHINES...

Research progress on antibiotic resistance of Salmonella

中国毒理学会兽医毒理学委员会与中国畜牧兽医学会兽医食品卫生学分会联合学术研讨会暨中国毒理学会兽医毒理学委员会第5次全国会员代表大会

作者： Narayan Paudyall Pan Hang Liao Xiayi Xiaoliang Li Min Yue Weihuan Fang CATG Microbiology and Food Safety Laboratory Institute of Preventive Veterinary Medicine College of Animal Science Zhejiang University

A total of 377 papers,published between 2006 and 2016(245 in Chinese and 132 in English)were selected and reviewed for the prevalence of various foodbome pathogenic bacteria.R-based OpenMeta[analyst]freeware was used for meta-analysis of prevalence using DerSimonian Liard method at 95%confidence *** most instances,a single paper studiedmultiple food commodities and multiple pathogens,thusthe total number of papers is not equal to the cumulative number of pathogens/food combinations,which is not to be regarded as a *** large array of food types was broadly classified into six categories for ease of *** resultsare given as average prevalence with 95%*** pathogens in various food categories were Vibrio[16.6%(15-18.3)]and[39.1%(27.2-51)]in aquatic produce;Bacillus[22.4%(13.5-31.4)]and Staphylococcus[16.7(10.9-22.6)]in dairy produce;Salmonella[11.8%(10.4-13.10)]andCampylobacter[29.2%(17.3-41)]in raw meats;Bacillus[4.9%.(2.8-7.0)]andStaphylococcus[14.2%(11.9-16.5)]in RTE foodsfrom Chinese and English papers *** pathogen in vegetables was Staphylococcus[3.6%(2.5-4.7)]and[25.5%(5.7-45.3)]in both the Chinese and English papers while Vibrio[10%(5.4-14.7)]was the top in the mixed foods category from the Chinese papers *** prevalence of pathogens was higher in the samples collected from the east coast in both types of papers with English papers showing a relatively greater prevalence of individual *** east coastal region is economically andindustrially more *** farming and industrial processing might have contributed to probabilities of food contamination in this geographic *** more reports being published from the coastal provinces,the available datatends to be higher in this region,especially in the aquatic *** in the sampling frames,methods used for isolation and identification of the pathogens,and the inherent properties of the various food matrixes probably have contribute

关键词： foodborne pathogens Pathogenic bacteria Chinese foods Meta-analysis

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Food Quality and Safety 2022年第3期6卷 355-364页

作者： Yizhe Wang Hengwei Ge Xinyue Wei Xihong Zhao Research Center for Environmental Ecology and Engineering Key Laboratory for Green Chemical Process of Ministry of EducationHubei Key Laboratory of Novel Reactor and Green Chemical TechnologySchool of Environmental Ecology and Biological EngineeringWuhan Institut of TechnologyWuhanChina

Antibiotic abuse results in various antibiotic resistance among a number of foodborne bacteria,posing a severe threat to food *** resistance genes are commonly detected in foodborne pathogens,which has sparked much interest in finding solutions to these *** strategies against these drug-resistant pathogens have been studied,including new antibiotics and ***,a powerful tool has been introduced in the fight against drug-resistant pathogens,namely,clustered regularly interspaced short palindromic repeats-CRiSPR associated(CRISPR-Cas)system aggregated by a prokaryotic defense *** review summarizes the mechanism of antibiotic resistance in Salmonella and resistance to common antibiotics,analyzes the relationship between Salmonella CRiSPR-Cas and antibiotic resistance,discusses the changes in antibiotic resistance on the structure and function of CRiSPR-Cas,andfinally predicts the mechanism of CRISPR-Cas intervention in Salmonella antibiotic *** the future,CRiSPR-Cas is expected to become an important tool to reduce the threat of antibiotic-resistant pathogens in food safety.

关键词： foodborne pathogens antibiotic resistance CRISPR-Cas food safety

A Novel Aptamer Lateral Flow Strip for the Rapid Detection of Gram-positive and Gram-negative Bacteria

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Analysis and Testing 2023年第1期7卷 79-88页

作者： Feifei Sun Chunlei Yan Qi Jia Wei Wu Yindi Cao College of Food Science and Engineering Qingdao Agricultural UniversityQingdao 266109China Qingdao Institute of Special Food Qingdao Agricultural UniversityQingdao 266109China Laboratory of Quality and Safety Risk Assessment for Fruit(Qingdao) Ministry of Agriculture and Rural Aff airsQingdao 266109China National Technology Centre for Whole Process Quality Control of FSEN Horticultural Products(Qingdao) Qingdao 266109China Qingdao Science and Technology Service Centre Qingdao 266001China

Diseases caused by foodborne pathogens are one of the main burdens of public health and seriously hinder global social and economic *** this research,a novel lateral flow strip was successfully constructed for the simultaneous detection of Gram-positive and Gram-negative bacteria based on the fluidity and color aggregation effect of Au nanoparticles(AuNPs).The lateral flow strip first combined ampicillin(AMP)antigens with AuNPs to form AuNPs-AMP antigens as the first recognition *** vancomycin specifically recognizing Gram-positive bacteria,and aptamers specifi-cally recognizing Gram-negative bacteria were used as the second recognition ***,Gram-positive bacteria and Gram-negative bacteria were detected rapidly using this sandwich *** strip can rapidly test the samples within 5 *** a lateral flow strip detector,the limit of detection was 4 CFU/mL,and the recovery rates in honey samples were 78.2-88.6%.The lateral flow strip constructed can detect foodborne pathogens quickly,accurately and e fficiently,which is of great significance for food safety detection.

关键词： foodborne pathogens AuNPs-AMP antigens Vancomycin Aptamers Lateral flow strips

A high-efficiency pretreatment method for elution of pathogenic bacteria in lettuce

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Food Quality and Safety 2022年第4期6卷 588-596页

作者： Xiaoyan Liao Chunmin Pu Yan Cui Yalong Bai Xianming Shi Lili Chen Department of Public Health Laboratory Sciences College of Public HealthHengyang Medical SchoolUniversity of South ChinaHengyangHunanChina Institute for Agri-food Standards and Testing Technology Shanghai Academy of Agricultural SciencesShanghaiChina MOST-USDA Joint Research Center for Food Safety&Bor Luh Food Safety Center Department of Food Science and EngineeringSchool of Agriculture and BiologyShanghai Jiao Tong UniversityShanghaiChina

Many current studies on rapid detection of pathogenic bacteria in foods have focused on the construction of detection methods,neglecting *** is also a key step to efficiently elute pathogenic bacteria from food samples for rapid detection and can even determine the success or failure of an *** this study,we used Escherichia coli(***),Salmonella enteritidis(***),and Listeria monocytogenes(***)as model bacteria to compare the elution efficiency of different eluants;explore the effect of surfactant,ionic strength,protein(or amino acid and peptide),and enzyme on the recovery rate of bacteria in lettuce;and compare the compound effect caused by multiple ***,we developed an efficient bacterial recovery method and confirmed the superiority of this method to analyze the bacterial diversity of eluants from *** results showed that the recovery efficiency of ***,***,and ***,which were artificially contaminated with approximately 10^(5)CFU/g in lettuces,could reach 94.4%,90.6%,and 93.7%by using 10 mmol/L Tris·HCl(pH 9.5)with 0.1%peptone and 300 U/100 mL of cellulase,and furthermore,the elution efficiency could reach 99.6%,98.6%,and 100%with the aid of a 2-min *** the lettuce samples with only native bacteria,the recovery rate reached 92.1%for viable aerobic bacteria by this method,which was approximately 10%higher than that of the modified previous *** bacterial diversity of the eluted solution was analyzed,and the result was significantly *** these advantages,it is important to improve the elution efficiency to achieve rapid and accurate detection of pathogenic bacteria in lettuces.

关键词： Lettuce foodborne pathogens elution pretreatment diversity analysis

Systematic review of Listeria monocytogenes from food and clinical samples in Chinese mainland from 2010 to 2019

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Quality and Safety 2022年第3期6卷 365-374页

作者： Ying Cheng Qingli Dong Yangtai Liu Hong Liu Hongzhi Zhang Xiang Wang School of Health Science and Engineering University of Shanghai for Science and TechnologyShanghaiChina Shanghai Municipal CenterforDisease Control and Prevention ShanghaiChina

Listeria monocytogenes(***),a foodborne pathogen,can cause human *** is a potentially fatal gastrointestinal illness,which is closely related to the spread of food to *** review the literature published during 2010-2019 to better understand the prevalence of *** in food products,incidence of human listeriosis,and their characteristics in Chinese *** found the main sequence types(STs)strains from foods are similar globally,and the prevalence of *** from raw meat was the highest among all food *** most common STs in food products and clinical cases were ST9(serogroup I.2)strains and ST87(serogroup Il.2)strains,*** ST87 strains being the most common STs of clinical cases might be related to the existence of Listeria pathogenicity island 4 gene and Chinese eating habits for ready-to-eat foods,among which the prevalence of ST87 strain was the highest in ready-to-eat ***,more research should be conducted to explore the reasons for the *** isolates differences in food and clinical sources.

关键词： Listeriosis foodborne pathogens subtype epidemiology food safety

Prevalence and methodologies for detection,characterization and subtyping of Listeria monocytogenes and *** in foods and environmental sources

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2017年第3期6卷 97-120页

作者： Jin-Qiang Chena Patrick Regan Pongpan Laksanalamai Stephanie Healey Zonglin Hua Winchester Engineering Analytical Center(WEAC)HFR-NE460Office of Regulatory AffairsUS Food and Drug Administration109 Holton StreetWinchesterMA 01890USA MD DHMH Laboratories Administration Division of MicrobiologyRoom 5281770 Ashland Ave.BaltimoreMD 21205USA

Listeria monocytogenes,one of the most important foodborne pathogens,can cause listeriosis,a lethal disease for ***,which is closely related to ***,is also widely distributed in nature and infects mainly warm-blooded ruminants,causing economic ***,there are high priority needs for methodologies for rapid,specific,cost-effective and accurate detection,characterization and subtyping of *** and *** in foods and environmental *** this review,we(A)described *** and ***,world-wide incidence of listeriosis,and prevalence of various *** strains in food and environmental sources;(B)comprehensively reviewed different types of traditional and newly developed methodologies,including culture-based,antigen/antibody-based,LOOP-mediated isothermal amplification,matrix-assisted laser desorption ionization-time of flight-mass spectrometry,DNA microarray,and genomic sequencing for detection and characterization of *** in foods and environmental sources;(C)comprehensively summarized different subtyping methodologies,including pulsed-field gel electrophoresis,multi-locus sequence typing,ribotyping,and phage-typing,and whole genomic sequencing *** subtyping of *** strains from food and environmental sources;and(D)described the applications of these methodologies in detection and subtyping of *** in foods and food processing facilities.

关键词： foodborne pathogens Listeria monocytogenes Listeria ivanovii Molecular characterization Subtyping

Milk phospholipids-based nanostructures functionalized with rhamnolipids and bacteriocin:Intrinsic and synergistic antimicrobial activity for cheese preservation

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Food Bioscience 2022年第3期47卷 371-382页

作者： Ayesha Sardar Khalid Taskeen Niaz Bina Zarif Saima Shabbir Tayyaba Noor Ramla Shahid Muhammad Imran Department of Biosciences Faculty of SciencesCOMSATS University IslamabadPark RoadIslamabad45550Pakistan Department of Materials Science and Engineering Institute of Space TechnologyIslamabad44000Pakistan School of Chemical and Materials Engineering (SCME) National University of Science and Technology (NUST)IslamabadPakistan

Milk fat globule membrane (MFGM) phospholipids-based nanostructures were developed and their functionalization with rhamnolipids (RLs) was carried out to enhance the preservation of cheese against resistant foodborne pathogens i.e.,Listeria monocytogenes and Escherichia coli .Void (without nisin) and nisin-loaded RLs functionalized MFGM nanostructures (RLs-MFGM-NS) were fabricated by ultrasonication-assisted self-assembly *** morphology of void and loaded RLs-MFGM-NS and pristine MFGM nanostructures (MFGM-NS) was observed under scanning electron microscopy (SEM),which indicated uniform size ranging from 43 nm (void RLs-MFGM-NS) to 194 nm (loaded RLs-MFGM-NS).FTIR analyses confirmed the electrostatic interaction,predominantly H-bonding and linkage of carboxyl ester group of MFGM with C–H group in RLs after functionalization of ***,quantitative antimicrobial assay on cheese slices confirmed the broad-spectrum potential of intrinsically active nanostructures (due to RLs) having synergistic activity with nisin against *** and *** .Hence,nisin-loaded RLs-MFGM-NS can be applied as promising bioactive additives for sustained preservation of cheese.

关键词： Rhamnolipids Nisin MFGM Functionalized nanostructures foodborne pathogens

Surveillance and examination of microbial contamination in ice cream in China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Quality and Safety 2022年第3期6卷 446-453页

作者： Lin Yan Xiaoyan Pei Junjie Miao Ying Li Shuran Yang Zixin Peng Xiaorong Yang Lingling Mei Qingwen Yang Huan Ren Dajin Yang Hongmei Shi Hebei Key Laboratory of Environment and Human Health School of Public HealthHebei Medical UniversityShijiazhuangChina China National Center for Food Safety Risk Assessment(CFSA) BeijingChina Sichuan Provincial Center for Disease Control and Prevention ChengduChina Zhejiang Provincial Center for Disease Control and Prevention HangzhouChina Yunnan Provincial Center for Disease Controland Prevention KunmingChina

This study investigated the microbial contamination of ice cream in China.A total of 2887 ice cream samples were collected from different regions of *** by the aerobic plate count(APC),coliforms,and three foodborne pathogens,Listeria monocytogenes(***),Staphylococcus aureus(***),and Salmonella spp.,was detected in the *** isolates were further analyzed for antibiotic susceptibility and multi-locus sequence typing(MLST).The results showed that APC was more than 10^(5) colony forming units(CFU)/g in 6.10%(176/2887)and coliform was more than 10^(2) CFU/g in 15.69%(453/2887)of all *** positive rates of ***,***,and Salmonella *** 0.66%,0.62%,and 0.10%,*** these,*** contamination was more than 102 CFU/g in two samples,and *** in the positive sample was in the range of 0.3-240 most probable number(MPN)/*** a median of 4.3 MPN/*** hygienic status of the packaged samples was much better than that of the bulk samples(P0.05).For 18 *** strains isolated from ice cream,the resistance rate of nine antibiotics was 5.56%(1/18).By MLST,the *** strains were classified into nine sequence types(STs),of which ST8 was the most common(six isolates).These results indicate that a potential health risk to the public may be caused by ice cream,particularly in susceptiblepopulations.

关键词： Frozen dessert microbial contamination foodborne pathogens antibiotic susceptibility multi-locus sequence typing

PCR-based methodologies for detection and characterization of Listeria monocytogenes and Listeria ivanovii in foods and environmental sources

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2017年第2期6卷 39-59页

作者： Jin-Qiang Chen Stephanie Healey Patrick Regan Pongpan Laksanalamai Zonglin Hu Winchester Engineering&Analytical Center(WEAC) HFR-NE460Office of Regulatory AffairsUS Food and Drug Administration109 Holton StreetWinchesterMA 01890USA MD DHMH Laboratories Administration Division of MicrobiologyRoom 5281770 Ashland Ave.BaltimoreMD 21205USA

Listeria monocytogenes is an important foodborne pathogen responsible for listeriosis,a fatal *** is widely distributed in various foods and environmental *** this review,we focused on addressing PCR-based technologies,including conventional PCR,qPCR and droplet digital PCR(ddPCR).Specifically,we described(a)conventional PCR and mono-,duplex-and multiplex-qPCR methodologies;(b)development and applications of gene HlyA-,Iap-,PrfA–and SsrA-based conventional and qPCR assays as well as PCR assays targeting newly identified gene targets for specific detection of ***;differentiation of viable from dead *** by qPCR in conjugation with propidium monoazide pretreatment;PCR-based serotype identification of *** isolates;PCR-based detection of ***,infecting ruminants,differentiation of *** from other Listeria species;and sigB-gene based PCR identification of Listeria spp;(c)applications of ddPCR in detection of ***;and(d)application of qPCR assays in detection and subtyping of *** in milk and dairy products;meats,meat products and meat-processing environment;and seafood,seafood products and processing *** goal was to provide a relatively comprehensive overview of PCR-based methodologies available in detection,characterization and subtyping of various strains of *** in foods and environmental sources.

关键词： foodborne pathogens Listeria monocytogenes Listeria ivanovii qPCR