کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8890487 1628503 2018 29 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
UV-A activated TiO2 embedded biodegradable polymer film for antimicrobial food packaging application
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
پیش نمایش صفحه اول مقاله
UV-A activated TiO2 embedded biodegradable polymer film for antimicrobial food packaging application
چکیده انگلیسی
TiO2 nanoparticles embedded polymer films were fabricated by solution casting method using three biodegradable polymers (cellulose acetate (CA), polycaprolactone (PCL) and polylactic acid (PLA)). Optical and physical properties of the films were assessed by measuring the thickness, color, UV-vis absorption spectra and UV-A transmission. Photodegradation of methylene blue was used to evaluate photocatalytic activity of different TiO2 embedded polymer films. Photocatalytic bactericidal property of the films was evaluated by inactivation of Escherichia. coli O157:H7 under UV-A light illumination at a light intensity of 1.30 ± 0.15 mW/cm2 for 2 h. CA film incorporated with 5 wt% TiO2 NPs had highest bactericidal activity and achieved 1.69 log CFU/ml reduction. Whereas, TiO2 embedded PCL and PLA composite films did not show significant bactericidal property. TiO2 embedded CA film has the potential to be used as antimicrobial food packaging.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Volume 96, October 2018, Pages 307-314
نویسندگان
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