Mathematical modeling of cinnamon (Cinnamomum verum) bark oil release from agar/PVA biocomposite film for antimicrobial food packaging: The effects of temperature and relative humidity

Jung Soo Lee, Inyoung Choi, Jaejoon Han

Research output: Contribution to journalArticlepeer-review

Abstract

Antimicrobial biocomposite films were prepared using agar (AG) and polyvinyl alcohol (PVA) as polymer matrix materials and cinnamon bark oil (CBO) as antimicrobial agent. AG and PVA were blended with different mixing ratios. The addition of AG improved the overall water resistance properties of the composite films. To evaluate the effects of temperature and relative humidity (RH) on the release kinetics of CBO from films, CBO release kinetics were analyzed under the 9 combinations of temperature and RH. Then, mathematical modeling of obtained data was conducted using Peleg, Ritger-Peppas, and Peppas-Sahlin models to investigate the release mechanisms of CBO. Consequently, the CBO release rate proportionally increased with the temperature and RH, with the RH being the main factor affecting the release behavior of CBO. In vitro antimicrobial activity tests against gram-positive and gram-negative bacteria showed that the developed composite films have high applicability as an antimicrobial food packaging material.

Original languageEnglish
Article number130306
JournalFood Chemistry
Volume363
DOIs
Publication statusPublished - 2021 Nov 30

Keywords

  • Arrhenius plot
  • Biodegradable polymer
  • Model parameters
  • Peleg
  • Predictive model
  • Release kinetics

ASJC Scopus subject areas

  • Analytical Chemistry
  • Food Science

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