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标题：Characterization and Antimicrobial Activity of Biodegradable Active Packaging Enriched with Clove and Thyme Essential Oil for Food Packaging Application
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作者：Shubham Sharma ; Sandra Barkauskaite ; Brendan Duffy 等
期刊名称：Foods
电子版ISSN：2304-8158
出版年度：2020
卷号：9
期号：8
页码：1117-1132
DOI：10.3390/foods9081117
出版社：MDPI Publishing
摘要：Bioactive packaging contains natural antimicrobial agents, which inhibit the growth of microorganisms and increase the food shelf life. Solvent casting method was used to prepare the Poly (lactide)-Poly (butylene adipate-co-terephthalate) (PLA-PBAT) film incorporated with the thyme oil and clove oil in various concentrations (1 wt%, 5 wt% and 10 wt%). The clove oil composite films depicted less green and more yellow as compared to thyme oil composite films. Clove oil composite film has shown an 80% increase in the UV blocking efficiency. The tensile strength (TS) of thyme oil and clove oil composite film decreases from 1.35 MPs (control film) to 0.96 MPa and 0.79, respectively. A complete killing of S. aureus that is a reduction from 6.5 log CFU/mL to 0 log CFU/mL was observed on the 10 wt% clove oil incorporated composite film. Clove oil and thyme oil composite film had inhibited E. coli biofilm by 93.43% and 82.30%, respectively. Clove oil composite film had exhibited UV blocking properties, strong antimicrobial activity and has high potential to be used as an active food packaging.
关键词：active food packaging; antimicrobial activity; antibiofilm activity; clove essential oils; thyme essential oil; poly (lactide); poly (butylene adipate-co-terephthalate) active food packaging ; antimicrobial activity ; antibiofilm activity ; clove essential oils ; thyme essential oil ; poly (lactide) ; poly (butylene adipate-co-terephthalate)