TY - JOUR ID - 59345 TI - Quality, sensory and microbial characteristics of fresh orange juice packed in LDPE nanocomposite films incorporating organoclay, modified nanoclays and Ag, Cu and ZnO nanoparticles JO - Iranian Journal of Biosystems Engineering JA - IJBSE LA - en SN - 2008-4803 AU - Peighambardoust, Seyed Hadi AU - Poursharif, Leila AD - Professor of Food Technology, Department of Food Science, College of Agriculture, University of Tabriz AD - MSc Graduated, Department and Food Science, College of Agriculture, University of Tabriz, Tabriz Y1 - 2016 PY - 2016 VL - 47 IS - 3 SP - 393 EP - 403 KW - Orange juice KW - Nanocomposite film KW - Shelf life KW - Quality DO - 10.22059/ijbse.2016.59345 N2 - The aim of this research was to investigate the efficiency of LDPE films incorporating fifferent nanofillers in extending orange juice shelf life. Fresh orange juice packed in different films was assessed for microbial stability, ascorbic acid content, pH, color parameters and sensory quality during 0, 7, 28 and 58 d of storage. Mold and yeast growth, acidophil and aerobic mesophil bacteria populations in orange juice packed in nanocomposite films containing metallic nanoparticles were significantly (p < 0.05) lower than those of LDPE films containing nanoclay as well as pure LDPE films. LDPE with metallic nanoparticles compared to other films showed the strongest antimicrobial effect after 28 d. The least ascorbic acid loss was seen in LDPE-modified organoclay films compared to other nanocomposite films. pH increased upon storage and the lowest pH was measured in LDPE-metallic nanoparticles compared to other treatments during different days of storage. Overall color change (∆E) and browning index (BI) of orange juice packed in LDPE-metallic nanoparticles films were significantly (p < 0.05) higher than those packed in LDPE-modified organoclay and control films (pure LDPE). The highest and lowest overall sensory scores was obtained for orange juice packed in LDPE-metallic nanoparticles and control films, respectively. UR - https://ijbse.ut.ac.ir/article_59345.html L1 - https://ijbse.ut.ac.ir/article_59345_908f604dd22f05f22b9002029ee1b77e.pdf ER -