In this study,an active packaging film was developed using polyvinyl alcohol(PVA)incorporated with Bajakah Tampala(BT)extract,which acts as an antimicrobial agent and UV-protective additive.The solution casting method...In this study,an active packaging film was developed using polyvinyl alcohol(PVA)incorporated with Bajakah Tampala(BT)extract,which acts as an antimicrobial agent and UV-protective additive.The solution casting method was employed,with BT extract concentrations ranging from 0.5 to 2 wt%.The BT extract exhibited strong antimicrobial properties and significant UV-protection,with a total phenolic content and IC_(50) values of 242.88±0.34 mg GAE/g and 7.83±0.03μg/mL,respectively.Incorporating 2 wt%BT extract into the PVA matrix resulted in substantial UV-light protection and enhanced tensile strength by 55.1%,tensile modulus by 167.2%,elongation at break by 53.1%,toughness by 84.3%,and crystallinity index by 21.8%.Additionally,the composite film retained moderate antimicrobial and antioxidant activity.These findings demonstrate PVAbased active packaging enriched with BT extract offers promising properties for food packaging applications,including enhanced mechanical strength,UV resistance,barrier performance,and antimicrobial protection.展开更多
基金funded by Universitas Andalas under the project“Riset Kolaborasi Indonesia(Skema A)”,number 3/UN16.19/PT.01.03/PRK-RKI Skema A(Host)/2023。
文摘In this study,an active packaging film was developed using polyvinyl alcohol(PVA)incorporated with Bajakah Tampala(BT)extract,which acts as an antimicrobial agent and UV-protective additive.The solution casting method was employed,with BT extract concentrations ranging from 0.5 to 2 wt%.The BT extract exhibited strong antimicrobial properties and significant UV-protection,with a total phenolic content and IC_(50) values of 242.88±0.34 mg GAE/g and 7.83±0.03μg/mL,respectively.Incorporating 2 wt%BT extract into the PVA matrix resulted in substantial UV-light protection and enhanced tensile strength by 55.1%,tensile modulus by 167.2%,elongation at break by 53.1%,toughness by 84.3%,and crystallinity index by 21.8%.Additionally,the composite film retained moderate antimicrobial and antioxidant activity.These findings demonstrate PVAbased active packaging enriched with BT extract offers promising properties for food packaging applications,including enhanced mechanical strength,UV resistance,barrier performance,and antimicrobial protection.
