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Journal of Particle Science and Technology، جلد ۳، شماره ۱، صفحات ۱-۱۱
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عنوان انگلیسی Inhibition of Staphylococcus aureus growth in fresh calf minced meat using low density Polyethylene films package promoted by titanium dioxide and zinc oxide nanoparticles
چکیده انگلیسی مقاله Antibacterial properties of TiO2, ZnO as well as mixed TiO2-ZnO nanoparticles coated low density polyethylene films on Staphylococcus aureus PTCC1112 were investigated. Bactericidal efficiency of 0.5, 1 and 2 Wt% for TiO2 and ZnO nanoparticles and also 1 Wt% mixed TiO2-ZnO nanoparticles with TiO2:ZnO ratios of 25:75, 50:50 and 75:25 were tested under UV and fluorescent lights exposure at two different states: films alone (Direct effect) and fresh calf minced meat packed inside the films. ZnO nanoparticle showed good antibacterial properties against Staphylococcus aureus PTCC1112. Maximum CFU reduction of 99.59% and 97.07% were obtained using 2 and 1 Wt% ZnO nanoparticle coated LDPE film under UV light for films alone as well as 62.43% and 59.57% for fresh calf minced meat packed. The best antibacterial functionalities of 96.25% and 77.11% CFU reduction were recorded for 1 Wt% TiO2 nanoparticle coated LDPE films in the presence of UV light at direct contact with bacteria and fresh calf minced meat packed, respectively. In the case of mixed TiO2-ZnO, maximum CFU reductions of 98.37% and 97.84% were obtained using 50:50 ratio of TiO2: ZnO nanoparticles at the presence of UV light for direct effect and fresh calf minced meat packed, respectively. 2 Wt% ZnO nanoparticle as well as 1 Wt% mixed TiO2-ZnO nanoparticles in ratio of 50:50 coated LDPE films were identified as the best case to improve shelf life and prevent Staphylococcus aureus PTCC1112 growth in fresh calf minced meat.
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نویسندگان مقاله آرین marcous |
department of food engineering, sari branch, islamic azad university, sari, iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

سوسن رسولی |
department of nano materials and nano coating, faculty of surface coating and modern technologies, institute for color science and technology, tehran, iran

فاطمه اردستانی |
department of chemical engineering, qaemshahr branch, islamic azad university, qaemshahr, iran
سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (Islamic azad university science and research branch)

نشانی اینترنتی http://jpst.irost.ir/article_451_4cfc737b3a0ce1bea00e6869b53cc0c8.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/503/article-503-441254.pdf
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