کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8891918 1628510 2018 35 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of Gracilaria vermiculophylla extract films containing zinc oxide nanoparticles and their application in smoked salmon packaging
ترجمه فارسی عنوان
توسعه عصاره های عصاره گرکیلاریا ورمیکولوفیللا حاوی نانوذرات اکسید روی و کاربرد آنها در بسته بندی سالمون های
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
چکیده انگلیسی
Films were prepared using extracts of Gracilaria vermiculophylla (GVE). Equal amounts of glycerol and sorbitol were added as plasticizers, and zinc oxide nanoparticles (ZnONPs) were added to prepare the antibacterial films. Physical and optical properties, ultraviolet (UV) light barrier, scanning electron microscopy (SEM) analysis, and antibacterial activity of the films were evaluated, and the films were then applied as a packaging material for smoked salmon. As the content of ZnONPs increased, the tensile strength increased, whereas the elongation at break decreased. The UV-visible light transmittance was decreased by the addition of ZnONPs. Viable cell counting indicated that the antimicrobial activity of the films increased with increasing ZnONPs content. After 9 h, the population of Listeria monocytogenes and Salmonella Typhimurium decreased by 4.99 and 5.08 log CFU/mL for the films containing 5% ZnONPs, respectively, compared to the films without ZnONPs. Smoked salmon packaged with the GVE films containing 3% ZnONPs resulted in increased antibacterial activity against L. monocytogenes and S. Typhimurium compared with the control during storage, as well as a low degree of lipid oxidation. Therefore, these results indicate that the GVE films containing ZnONPs have potential as an active food packaging material to maintain the quality of smoked salmon.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Volume 89, March 2018, Pages 269-275
نویسندگان
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