Patcharaporn Phuinthiang, D. Channei, K. Ratananikom, A. Nakaruk, W. Khanitchaidecha
{"title":"食品包装表面TiO2纳米涂层对大肠杆菌和鼠伤寒沙门氏菌的抗菌性能","authors":"Patcharaporn Phuinthiang, D. Channei, K. Ratananikom, A. Nakaruk, W. Khanitchaidecha","doi":"10.1080/02670844.2023.2232969","DOIUrl":null,"url":null,"abstract":"ABSTRACT This work aimed to enhance the surface properties of common food packaging materials (PVC, PS, PET, PVDC) by applying a TiO2 nano thin film coating. Physical and chemical analyses confirmed a well-defined anatase phase film. PET showed the highest antibacterial activity, followed by PVDC, PS, and PVC. After 60 min of UV-A irradiation, E. coli elimination rates were 99.85% (PET), 97.14% (PVDC), 96.5% (PS), and 85.91% (PVC). Similarly, for S. Typhimurium, the respective rates were 97.8% (PET), 83.71% (PVDC), 74.79% (PS), and 68.94% (PVC). Complete eradication of both strains occurred within 120 min (E. coli) and 180 min (S. Typhimurium). Durability testing revealed PET's mass loss of 97 mg/kg after 15 cycles, while PVC had the lowest value of 7 mg/kg. These findings demonstrate that TiO2 thin film-coated substrates effectively inhibit bacteria growth, extending food product shelf life.","PeriodicalId":21995,"journal":{"name":"Surface Engineering","volume":null,"pages":null},"PeriodicalIF":2.4000,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Antibacterial properties of TiO2 nano coating on food packaging surfaces against Escherichia coli and Salmonella typhimurium\",\"authors\":\"Patcharaporn Phuinthiang, D. Channei, K. Ratananikom, A. Nakaruk, W. Khanitchaidecha\",\"doi\":\"10.1080/02670844.2023.2232969\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT This work aimed to enhance the surface properties of common food packaging materials (PVC, PS, PET, PVDC) by applying a TiO2 nano thin film coating. Physical and chemical analyses confirmed a well-defined anatase phase film. PET showed the highest antibacterial activity, followed by PVDC, PS, and PVC. After 60 min of UV-A irradiation, E. coli elimination rates were 99.85% (PET), 97.14% (PVDC), 96.5% (PS), and 85.91% (PVC). Similarly, for S. Typhimurium, the respective rates were 97.8% (PET), 83.71% (PVDC), 74.79% (PS), and 68.94% (PVC). Complete eradication of both strains occurred within 120 min (E. coli) and 180 min (S. Typhimurium). Durability testing revealed PET's mass loss of 97 mg/kg after 15 cycles, while PVC had the lowest value of 7 mg/kg. These findings demonstrate that TiO2 thin film-coated substrates effectively inhibit bacteria growth, extending food product shelf life.\",\"PeriodicalId\":21995,\"journal\":{\"name\":\"Surface Engineering\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.4000,\"publicationDate\":\"2023-04-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Surface Engineering\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1080/02670844.2023.2232969\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, COATINGS & FILMS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Engineering","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/02670844.2023.2232969","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, COATINGS & FILMS","Score":null,"Total":0}
Antibacterial properties of TiO2 nano coating on food packaging surfaces against Escherichia coli and Salmonella typhimurium
ABSTRACT This work aimed to enhance the surface properties of common food packaging materials (PVC, PS, PET, PVDC) by applying a TiO2 nano thin film coating. Physical and chemical analyses confirmed a well-defined anatase phase film. PET showed the highest antibacterial activity, followed by PVDC, PS, and PVC. After 60 min of UV-A irradiation, E. coli elimination rates were 99.85% (PET), 97.14% (PVDC), 96.5% (PS), and 85.91% (PVC). Similarly, for S. Typhimurium, the respective rates were 97.8% (PET), 83.71% (PVDC), 74.79% (PS), and 68.94% (PVC). Complete eradication of both strains occurred within 120 min (E. coli) and 180 min (S. Typhimurium). Durability testing revealed PET's mass loss of 97 mg/kg after 15 cycles, while PVC had the lowest value of 7 mg/kg. These findings demonstrate that TiO2 thin film-coated substrates effectively inhibit bacteria growth, extending food product shelf life.
期刊介绍：
Surface Engineering provides a forum for the publication of refereed material on both the theory and practice of this important enabling technology, embracing science, technology and engineering. Coverage includes design, surface modification technologies and process control, and the characterisation and properties of the final system or component, including quality control and non-destructive examination.
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