TY - JOUR T1 - Antibacterial tragacanth gum-based nanocomposite films carrying ascorbic acid antioxidant for bioactive food packaging. AU - Janani,Negar, AU - Zare,Ehsan Nazarzadeh, AU - Salimi,Fatemeh, AU - Makvandi,Pooyan, Y1 - 2020/06/24/ PY - 2020/04/18/received PY - 2020/06/04/revised PY - 2020/06/21/accepted PY - 2020/8/25/entrez PY - 2020/8/25/pubmed PY - 2021/4/16/medline KW - Antibacterial KW - Antioxidant KW - Biodegradable KW - Food packaging KW - Tragacanth SP - 116678 EP - 116678 JF - Carbohydrate polymers JO - Carbohydr Polym VL - 247 N2 - Food packaging has a pivotal share to improve protection, safety and shelf-life time of foods and bioproducts. Herein, we prepared bioactive nanocomposite films that composed of tragacanth (TG), polyvinyl alcohol, ZnO nanoparticles (NPs) and ascorbic acid (AA) using glycerol as a plasticizer and citric acid as a cross-linker for food packaging. The SEM images showed a homogenous distribution of ZnO NPs with low aggregation in nanocomposite films. The water solubility of nanocomposite films reduced from 15.65 % to 10.81 with increasing of TG and ZnO NPs contents. The incorporation of AA and ZnO NPs into nanocomposite films improved antioxidant activity from 50 % to 66 % in 95 % ethanolic solution. Also, the nanocomposite films showed good antibacterial activity against Gram-negative and -positive bacteria. Soil degradation rate of nanocomposite films increased from 80 % to 91.46 as the wt% of TG increased. Therefore, prepared nanocomposite films could be employed as a promising candidate for food packaging applications. SN - 1879-1344 UR - https://www.unboundmedicine.com/medline/citation/32829806/Antibacterial_tragacanth_gum_based_nanocomposite_films_carrying_ascorbic_acid_antioxidant_for_bioactive_food_packaging_ DB - PRIME DP - Unbound Medicine ER -