TY - JOUR T1 - Chitosan-poly(vinyl alcohol) intelligent films fortified with anthocyanins isolated from Clitoria ternatea and Carissa carandas for monitoring beverage freshness. AU - Singh,Sudarshan, AU - Nwabor,Ozioma Forstinus, AU - Syukri,Dwi Marlina, AU - Voravuthikunchai,Supayang Piyawan, Y1 - 2021/04/08/ PY - 2021/02/04/received PY - 2021/04/04/revised PY - 2021/04/05/accepted PY - 2021/4/12/pubmed PY - 2021/7/20/medline PY - 2021/4/11/entrez KW - Anthocyanin KW - Beverage freshness KW - Carissa carandas KW - Clitoria ternatea KW - Intelligent packaging SP - 1015 EP - 1025 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 182 N2 - Biodegradable chitosan-poly(vinyl alcohol) films containing natural anthocyanin-rich extracts were prepared using solvent casting method and employed as intelligent indicators for monitoring beverages freshness. The surface and cross-sectional scanning electron micrograph indicated a compact structure for the intelligent films, whereas the atomic force micrograph indicated a 16.22 and 20.31 nm increase in surface roughness for Clitoria ternatea and Carissa carandas extract incorporated films, respectively. Moreover, the test films demonstrated enhanced radical scavenging efficacy. The extracts and anthocyanin incorporated films presented excellent colorimetric changes at pH 2 to 8. In addition, the C. ternatea test films showed changes in color for juice stored at 25 °C after 72 h. Photo-degradability results indicated stability of test films stored in dark at 4 °C and 25 °C, whereas leaching study indicated the release of ≤2.0% anthocyanin after 24 h. The cytocompatibilty assay showed that the test and control films were biocompatible with a viability of >80% on HaCat cells. The results demonstrated that the incorporation of anthocyanins-rich extracts into chitosan-poly(vinyl alcohol) did not significantly interfere with the films properties (p > 0.05). The natural anthocyanin incorporated films demonstrated good pH sensing property that could be further explored for monitoring of beverages freshness. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/33839180/Chitosan_poly_vinyl_alcohol__intelligent_films_fortified_with_anthocyanins_isolated_from_Clitoria_ternatea_and_Carissa_carandas_for_monitoring_beverage_freshness_ DB - PRIME DP - Unbound Medicine ER -