Hygiene最新文献 - Book学术

Unveiling the Mechanisms for Campylobacter jejuni Biofilm Formation Using a Stochastic Mathematical Model 利用随机数学模型揭示空肠弯曲杆菌生物膜的形成机制

Hygiene Pub Date : 2024-08-08 DOI: 10.3390/hygiene4030026

Paulina A. Dzianach, Gary A. Dykes, N. Strachan, Ken J. Forbes, F. Pérez-Reche

{"title":"Unveiling the Mechanisms for Campylobacter jejuni Biofilm Formation Using a Stochastic Mathematical Model","authors":"Paulina A. Dzianach, Gary A. Dykes, N. Strachan, Ken J. Forbes, F. Pérez-Reche","doi":"10.3390/hygiene4030026","DOIUrl":"https://doi.org/10.3390/hygiene4030026","url":null,"abstract":"Campylobacter jejuni plays a significant role in human health, food production, and veterinary practice. Biofilm formation is a likely mechanism explaining the survival of C. jejuni in seemingly unfavourable environments, but the underlying mechanisms are poorly understood. We propose a mathematical model to unify various observations regarding C. jejuni biofilm formation. Specifically, we present a cellular automaton with stochastic dynamics that describes both the probability of biofilm initiation and its subsequent growth. Our model incorporates fundamental processes such as cell rearrangement, diffusion of chemical compounds, accumulation of extracellular material, cell growth, lysis, and deactivation due to nutrient scarcity. The model predicts an optimal nutrient concentration that enhances population survival, revealing a trade-off where higher nutrient levels may harm individual cells but benefit the overall population. Our results suggest that the lower biofilm accumulation observed experimentally in aerobic conditions compared to microaerobic conditions may be due to a reduced surface invasion probability of individual cells. However, cells that do manage to invade can generate microcolonies of a similar size under both aerobic and microaerobic conditions. These findings provide new insights into the survival probability and size of C. jejuni biofilms, suggesting potential targets for controlling its biofilm formation in various environments.","PeriodicalId":513294,"journal":{"name":"Hygiene","volume":"47 22","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141929477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Combined Cleaning and Disinfection Measure to Decontaminate Tire Treads from Tomato Brown Rugose Fruit Virus 清洗和消毒相结合的措施可消除轮胎胎面的番茄褐葡萄孢病毒污染

Hygiene Pub Date : 2024-07-23 DOI: 10.3390/hygiene4030022

M. Bandte, Jens Ehlers, S. Nourinejhad Zarghani, Carmen Büttner

{"title":"A Combined Cleaning and Disinfection Measure to Decontaminate Tire Treads from Tomato Brown Rugose Fruit Virus","authors":"M. Bandte, Jens Ehlers, S. Nourinejhad Zarghani, Carmen Büttner","doi":"10.3390/hygiene4030022","DOIUrl":"https://doi.org/10.3390/hygiene4030022","url":null,"abstract":"Mechanically transmissible and stable viruses such as tobamoviruses, which include Tobamovirus fructirugosum (syn. tomato brown rugose fruit virus (ToBRFV), will continue to pose major challenges for farmers. Consequently, holistic hygiene concepts are being implemented to prevent the introduction and spread of these viruses. The decontamination of tires and castors was previously a weak point in many industrial hygiene concepts. For this reason, the ProfilGate clean-off zone was tested in combination with the disinfectant MENNO Florades for the decontamination of ToBRFV-contaminated tires. In total, 478 tire segments were sampled to evaluate the contamination of ToBRFV and the following decontamination of the tires. This treatment reliably removed high (4.5 µg/cm2), medium (0.45 µg/cm2), and low concentrations (0.045 µg/cm2) of ToBRFV from the tires, as shown by a bioassay. The reduction in necrotic local lesions on susceptible indicator plants N. tabacum cv. Xanthi NN was between 91.9 and 97.6%. The reduction in ToBRFV contamination largely depended on the length of the rollover distance, i.e., the number of tire rotations. For transport trolleys with polyamide and rubber tires, depletions of 97.4 and 97.6%, respectively, was determined after 16 rotations. For transport wagons with tires twice the size and polyurethane tread, the depletion was still at least 91% after eight wheel turns. Even in the case of gross soiling of the tires, the mean reduction from the different tread materials was 80.9 to 98.9%. Subsequent analysis of the clean-off zone revealed that ToBRFV did not accumulate, even when the contaminated tires were driven over several times, but was safely inactivated completely in the disinfectant solution. This provides growers with an effective tool for preventing the introduction and spread of ToBRFV.","PeriodicalId":513294,"journal":{"name":"Hygiene","volume":"63 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141810560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contamination of High-Touch Surfaces in the Ophthalmic Clinical Environment—A Pilot Study 眼科临床环境中的高接触表面污染--一项试点研究

Hygiene Pub Date : 2024-07-22 DOI: 10.3390/hygiene4030021

Berdjette Y. Y. Lau, C. Chan, Xin Le Ng, Dawn K. A. Lim, Blanche X. H. Lim, Chris H. L. Lim

{"title":"Contamination of High-Touch Surfaces in the Ophthalmic Clinical Environment—A Pilot Study","authors":"Berdjette Y. Y. Lau, C. Chan, Xin Le Ng, Dawn K. A. Lim, Blanche X. H. Lim, Chris H. L. Lim","doi":"10.3390/hygiene4030021","DOIUrl":"https://doi.org/10.3390/hygiene4030021","url":null,"abstract":"In light of the close contact between patient and clinician during ophthalmic examinations and the multiple opportunities for pathogen transmission, we identified and evaluated potential pathogen transmission routes through high-touch surfaces in an outpatient ophthalmology clinic. A circuit simulation was performed to replicate a patient’s journey through an ophthalmology clinic with various stations. Fluorescent oil and powder were applied to the hands of Simulated Patient A who went through the circuit. Routine disinfection of surfaces in the slit lamp environment and hand hygiene by the ophthalmologist were conducted prior to Simulated Patient B going through the same circuit with untagged hands. Ultraviolet black light was used to identify fluorescent marker contamination after Simulated Patient B completed the circuit. Fluorescent marker contamination was found on the hands of all the simulated patients and staff, various items of the simulated patients, multiple equipment surfaces—particularly the ophthalmologist’s working table and slit lamp environment—and miscellaneous objects like appointment cards and files. Fluorescent marker contamination on Simulated Patient B’s untagged hands despite proper hand hygiene being performed prior suggests suboptimal surface disinfection following Simulated Patient A’s circuit. Through this pilot study, we recognised the key role that ophthalmic high-touch surfaces play in fomite transmission and that thorough disinfection of high-touch surfaces is essential on top of proper hand hygiene. With the contact sequences delineated in this pilot study, specific cues for hand hygiene and surface disinfection may be implemented at suitable intervals during contact with high-touch surfaces. Environmental decontamination adjuncts could also be considered to reinforce surface disinfection.","PeriodicalId":513294,"journal":{"name":"Hygiene","volume":"16 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141816934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of the Proteome of Staphylococcus aureus Planktonic Culture and 3-Day Biofilm Reveals Potential Role of Key Proteins in Biofilm 金黄色葡萄球菌浮游培养物和 3 天生物膜蛋白质组的比较揭示了关键蛋白质在生物膜中的潜在作用

Hygiene Pub Date : 2024-07-03 DOI: 10.3390/hygiene4030020

Md. Arifur Rahman, A. Amirkhani, Durdana Chowdhury, Karen Vickery, Honghua Hu

{"title":"Comparison of the Proteome of Staphylococcus aureus Planktonic Culture and 3-Day Biofilm Reveals Potential Role of Key Proteins in Biofilm","authors":"Md. Arifur Rahman, A. Amirkhani, Durdana Chowdhury, Karen Vickery, Honghua Hu","doi":"10.3390/hygiene4030020","DOIUrl":"https://doi.org/10.3390/hygiene4030020","url":null,"abstract":"Staphylococcus aureus and coagulase-negative staphylococci account for about 80% of infections associated with medical devices and are associated with increased virulence due to their ability to form biofilm. In this study, we aimed to construct a comprehensive reference map followed by significant pathway analysis in the proteome of S. aureus biofilm grown for 3 days compared with 24 h of planktonic culture using a high-resolution Tandem Mass Tag (TMT)-based MS. We identified proteins associated with secondary metabolites, ABC transporters, biosynthesis of amino acids, and response to stress, and amino sugar and nucleotide sugar metabolism were significantly upregulated in 3-day biofilm. In contrast, proteins associated with virulence factors, microbial metabolism in diverse environments, secondary metabolites, translation, and energy metabolism were significantly downregulated. GO functional annotation indicated that more proteins are involved in metabolic processes, catalytic activity, and binding in biofilm, respectively. Among the significantly dysregulated proteins, hyaluronidase (hysA) in conjunction with chitinase may play a significant role in the elimination and/or prevention of biofilm development. This study advances the understanding of the S. aureus subproteome, identifying potential pathways significant to biofilm biology. The insights gained may aid in developing new therapeutic strategies, including antibiofilm agents, for treating biofilm-related infections associated with implantable medical devices.","PeriodicalId":513294,"journal":{"name":"Hygiene","volume":"93 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141683538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oral Hygiene Practices and Oral Health Knowledge among Adult Orthodontic Patients: A Best Practice Implementation Project 成人正畸患者的口腔卫生实践和口腔健康知识：最佳实践实施项目

Hygiene Pub Date : 2024-06-03 DOI: 10.3390/hygiene4020018

A. Tadin, Marija Badrov, Branimira Mikelic Vitasovic, Tina Poklepovic Pericic

{"title":"Oral Hygiene Practices and Oral Health Knowledge among Adult Orthodontic Patients: A Best Practice Implementation Project","authors":"A. Tadin, Marija Badrov, Branimira Mikelic Vitasovic, Tina Poklepovic Pericic","doi":"10.3390/hygiene4020018","DOIUrl":"https://doi.org/10.3390/hygiene4020018","url":null,"abstract":"Orthodontic therapy is associated with a more significant accumulation of dentobacterial plaque and impaired oral hygiene, which increase the risk of developing dental caries and periodontal disease. Therefore, it is crucial to educate orthodontic patients about proper oral hygiene maintenance and oral health before and during treatment. The aim of this pilot study was to implement evidence-based best practices related to oral hygiene in adult orthodontic patients and improve compliance. In addition to evaluating oral hygiene practices, another goal of the project was to assess the knowledge of orthodontic patients regarding oral health. Questionnaires with seven pre- (before) and post-test criteria (90 day after implementation) were developed based on the best evidence available. This project was conducted in a private dental clinic in Split, Croatia, and included 45 patients. The baseline audit showed a gap between clinical practice and the best evidence. Three criteria achieved a high compliance baseline, while after implementation, there were substantial improvements in compliance for all. The everyday use of mouthwash improved from 17.8% at baseline to 66.7% at follow-up, as did the use of interdental aids, which increased from 55.6% to 91.1%. Statistically significant differences were found in the total score for oral health knowledge between the baseline (6.67 ± 1.74) and the follow-up audit (7.78 ± 0.56, p ≤ 0.001). The strategies developed in this project were effective in providing essential information to adult orthodontic patients and improving compliance with evidence. Guidelines on this topic should be designed to assist orthodontists and patients in maintaining oral health and oral hygiene.","PeriodicalId":513294,"journal":{"name":"Hygiene","volume":"52 45","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141269914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Visualization of Effectiveness: The Use of a Set of Colored Cleaning Wipes for Visible Disinfection of Ultrasound Probes 效果可视化：使用一套彩色清洁抹布对超声探头进行可见光消毒

Hygiene Pub Date : 2024-05-15 DOI: 10.3390/hygiene4020015

Christian Kühnel, Falk Gühne

{"title":"Visualization of Effectiveness: The Use of a Set of Colored Cleaning Wipes for Visible Disinfection of Ultrasound Probes","authors":"Christian Kühnel, Falk Gühne","doi":"10.3390/hygiene4020015","DOIUrl":"https://doi.org/10.3390/hygiene4020015","url":null,"abstract":"The German health authorities’ guidelines for medical devices in 2012 highlighted the importance of cleaning ultrasound probes, emphasizing their validation and reliability. In addition to automated and validated options, alternative manual methods such as wipe disinfection have gained traction due to their independence from additional hardware. The study examines the effectiveness of a manual cleaning process using wipes, addressing concerns raised by the Robert Koch Institute regarding the lack of validation for wipe disinfection of semi-critical devices. The EQUINOS colored wipe disinfection kit identified wetting gaps in all cleanings across four probes tested. The results indicate significant challenges in ensuring complete surface wetting, particularly in complex device parts such as clip-on areas and fixtures for additional biopsy attachments, suggesting that manual methods alone may not adequately mitigate the risk of infection transmission (p value < 0.0001). The study concludes that while manual disinfection methods are a commonly used alternative to automated reprocessing, there is a critical need for enhanced training and potentially the development of more effective manual disinfection techniques or colored wipes to ensure patient safety and compliance with healthcare hygiene standards.","PeriodicalId":513294,"journal":{"name":"Hygiene","volume":"3 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140974539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effectiveness of Nudge Tools to Promote Hand Disinfection among Healthcare Professionals and Visitors in Health Institution: The Slovenian Pilot Study 促进医疗机构医护人员和来访者手部消毒的推力工具的有效性：斯洛文尼亚试点研究

Hygiene Pub Date : 2024-05-06 DOI: 10.3390/hygiene4020014

Neža Podvratnik, A. Ovca, M. Jevšnik

{"title":"Effectiveness of Nudge Tools to Promote Hand Disinfection among Healthcare Professionals and Visitors in Health Institution: The Slovenian Pilot Study","authors":"Neža Podvratnik, A. Ovca, M. Jevšnik","doi":"10.3390/hygiene4020014","DOIUrl":"https://doi.org/10.3390/hygiene4020014","url":null,"abstract":"Healthcare-associated infections (HAIs) are considered to be one of the biggest health problems as they continue to be an important cause of morbidity and mortality worldwide. They cannot be completely prevented, but their incidence can be significantly limited. Preventive action is the most important measure in this case. Due to the frequent interaction between healthcare professionals and patients, the crucial importance of hand hygiene is therefore emphasised. Adherence to good disinfection and hand washing practices remains around 40%, which can be improved by using a variety of nudge tools to promote desired hygienic behaviour. We conducted an open observation of employees and visitors with participation. The aim of this study was to determine the actual status of hand disinfection in a selected healthcare facility amongst doctors, registered nurses, medical technicians, cleaners, and visitors or parents of children; then, we selected and introduced three nudge tools of desired hygiene behaviour and analysed their effectiveness; finally, we provided suggestions for the use of nudge tools of desired hygiene behaviour with the aim of influencing doctors, registered nurses, medical technicians, cleaners, and visitors or parents of children so that they disinfect their hands properly. The actual state of hand disinfection was determined on the basis of observation without introducing any changes; then, we separately introduced three nudge tools, posters with an inscription and picture, the scent of citrus, and flashing lights. The obtained results were analysed with the help of the SpeedyAudit Lite application, and the effectiveness of each nudge tool and the adequacy of hand disinfection by categories of people were compared. In general, posters with a picture and an inscription contributed the most to more consistent disinfection of employees’ hands, while the scent of citrus and flashing lights contributed slightly less.","PeriodicalId":513294,"journal":{"name":"Hygiene","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141008900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating the Ergonomic Performance of a Novel Periodontal Curette with Adaptive Handle Design 评估采用自适应手柄设计的新型牙周刮匙的人体工学性能

Hygiene Pub Date : 2024-04-22 DOI: 10.3390/hygiene4020013

C. Wink, K. Lin, Ben Dolan, Kathryn Osann, Ali A. Habib, Petra Wilder-Smith

{"title":"Evaluating the Ergonomic Performance of a Novel Periodontal Curette with Adaptive Handle Design","authors":"C. Wink, K. Lin, Ben Dolan, Kathryn Osann, Ali A. Habib, Petra Wilder-Smith","doi":"10.3390/hygiene4020013","DOIUrl":"https://doi.org/10.3390/hygiene4020013","url":null,"abstract":"(1) Background: Periodontal instrumentation with dental curettes is associated with discomfort, fatigue, and musculoskeletal diseases. The goal of this study was to compare comfort, fatigue, and muscle work using three different curettes. (2) Methods: Eight hygienists each scaled three typodonts using the three different curettes. Curette A was a prototype with a novel adaptive design, Curette B had a conventional stainless-steel design, and Curette C featured a conventional silicon-covered handle. Time-based work in four muscles, comfort, fatigue, tactile feedback, grip and blade position, and pinch and grasp strength were recorded. Statistical analysis was performed using a General Linear Model (GLIM) and Tukey’s post hoc test. The level of significance was set at p < 0.05. (3) Results: Comfort, correct grasp, fingertip placement, and blade-to-tooth adaptation were significantly better with Curette A (p < 0.05). While pinch and grasp strength were significantly reduced post-instrumentation for Curettes B and C (p < 0.05), they remained unchanged for Curette A. Curette A required significantly less total muscle work and work in individual muscles, resulting in significantly less post-instrumentation fatigue than for Curettes B and C, but similar levels of tactile feedback (p < 0.05). (4) Conclusions: The ergonomic performance of a prototype adaptive periodontal curette was significantly better than that of two conventional instruments with rigid handle designs.","PeriodicalId":513294,"journal":{"name":"Hygiene","volume":"3 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140676432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ralstonia insidiosa Bacteremia in Patients with Solid Cancer Treated by Means of a Central Venous Catheter 使用中心静脉导管治疗的实体瘤患者中的 Ralstonia insidiosa 菌血症

Hygiene Pub Date : 2024-04-17 DOI: 10.3390/hygiene4020012

Lorenzo Ruggieri, A. Ridolfo, S. Rimoldi, M. S. Cona, Davide Dalu, Pietro Olivieri, Giuliano Rizzardini, S. Antinori, Anna Gambaro, S. Ferrario, C. Fasola, Maria Antista, Carmen Giusy Rea, N. La Verde

{"title":"Ralstonia insidiosa Bacteremia in Patients with Solid Cancer Treated by Means of a Central Venous Catheter","authors":"Lorenzo Ruggieri, A. Ridolfo, S. Rimoldi, M. S. Cona, Davide Dalu, Pietro Olivieri, Giuliano Rizzardini, S. Antinori, Anna Gambaro, S. Ferrario, C. Fasola, Maria Antista, Carmen Giusy Rea, N. La Verde","doi":"10.3390/hygiene4020012","DOIUrl":"https://doi.org/10.3390/hygiene4020012","url":null,"abstract":"Ralstonia spp. are low-virulent environmental Gram-negative bacteria that can cause serious nosocomial infections in immunocompromised patients. We report the characteristics of a cluster of R. insidiosa bacteremia cases occurring in our oncology day ward in Milan, Italy, between January and March 2022. A case was defined as a cancer patient attending our day ward and whose blood culture (performed because of bacteremia symptoms) led to the isolation of Ralstonia insidiosa. An epidemiological investigation was conducted in order to seek the possible source of infection. Seven adult patients received curative or palliative treatment via infusion through a Port-a-Cath (PAC). All developed symptoms within 24 h of the infusion (three during the infusion itself). Ralstonia insidiosa was isolated in the blood drawn from the PAC in all patients. All of the isolates were susceptible to carbapenems, fluoroquinolones, and piperacillin/tazobactam but resistant to aminoglycosides and cephalosporins. Systemic and/or lock antibiotic therapy led to stable symptom resolution and negative blood cultures in five patients, whereas bacteremia recurred in two patients. An epidemiological investigation suggested that extrinsic contamination of antiseptic solutions was the possible cause of the R. insidiosa infections. Although R. insidiosa is not considered a virulent pathogen, clinicians, microbiologists, and infection control teams should be aware about its potential to cause outbreaks of nosocomial bloodstream infections, especially in immunocompromised patients bearing central venous catheters.","PeriodicalId":513294,"journal":{"name":"Hygiene","volume":"78 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140693772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Formation/Removal of Biofilms on/from Coupons of Selected Food-Grade Elastomeric Polymers vs. Plexiglass Used for the Fruit-Catching Plates of OTR Blueberry Machine Harvesters 用于 OTR 蓝莓机械采摘机果实捕捉板的选定食品级弹性聚合物与有机玻璃衬垫上生物膜的形成/清除

Hygiene Pub Date : 2024-04-11 DOI: 10.3390/hygiene4020011

Peien Wang, Minji Hur, L. DeVetter, Fumiomi Takeda, Jinru Chen

{"title":"Formation/Removal of Biofilms on/from Coupons of Selected Food-Grade Elastomeric Polymers vs. Plexiglass Used for the Fruit-Catching Plates of OTR Blueberry Machine Harvesters","authors":"Peien Wang, Minji Hur, L. DeVetter, Fumiomi Takeda, Jinru Chen","doi":"10.3390/hygiene4020011","DOIUrl":"https://doi.org/10.3390/hygiene4020011","url":null,"abstract":"To reduce the bruising potential of machine-harvested fresh blueberries, manufacturers of over-the-row (OTR) machine harvesters are replacing the hard, plexiglass fruit-catching plates with soft, elastomeric polymers. This study assessed whether selected soft, food-grade elastomeric polymers, with the potential to be used in OTR harvesters, have a greater likelihood to encourage more microbial buildups, making cleaning/sanitation a greater challenge. Coupons of plexiglass, silicone, neoprene, and ethylene propylene diene monomer (EPDM) were exposed to fecal coliforms from various sources for biofilm development. The coupons with developed biofilms were treated with sodium hypochlorite, peracetic acid, isopropyl alcohol-based quaternary ammonium compounds (Alpet D2), or commercial dish soap. Biofilms and their residuals after the sanitizer treatments were quantified. The fecal coliforms isolated from the surface of OTR harvesters developed significantly (p ≤ 0.05) more biofilms than those from other sources. EPDM coupons had significantly more, while neoprene and silicone coupons had insignificantly different (p > 0.05) amounts of biofilms from plexiglass coupons. After sanitizer treatments, EPDM coupons had significantly more, while neoprene and certain silicon coupons had significantly fewer residues than plexiglass coupons. Study suggests that compared to plexiglass, neoprene and silicon did not support more microbial buildups or retain more biofilms after sanitizing treatments.","PeriodicalId":513294,"journal":{"name":"Hygiene","volume":"16 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140714178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0