Open AccessBiodegradable carboxymethyl cellulose–polyvinyl alcohol composite incorporated with Glycyrrhiza Glabra L. essential oil: Physicochemical and antibacterial features
Author(s) -
Bahrami Arash,
Fattahi Reza
Publication year - 2021
Publication title -
food science and nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.614
H-Index - 27
ISSN - 2048-7177
DOI - 10.1002/fsn3.2449
Subject(s) - polyvinyl alcohol , carboxymethyl cellulose , antimicrobial , chemistry , food science , ultimate tensile strength , active packaging , antibacterial activity , bacterial cellulose , composite number , nuclear chemistry , cellulose , materials science , bacteria , food packaging , organic chemistry , composite material , biology , genetics , sodium
Glycyrrhiza glabra L. root essential oil (GGEO) has well‐known antimicrobial and therapeutic features. In this study, a new antimicrobial carboxymethyl cellulose–polyvinyl alcohol (CMC‐PVA) binary film was developed using GGEO as an active compound. The effects of various concentrations of GGEO (0.25%, 0.50%, and 0.75%) were scrutinized on the physicochemical and antibacterial properties of composites. It was discovered that GGEO significantly reduced the composite ultimate tensile strength from 17.01 to 3.86 MPa. Further, by increasing the concentration of GGEO to 0.75%, the water vapor permeability and moisture content increased to 13.61 × 10 −9 g/m s −1 Pa −1 and 41.06%, respectively. The results indicated that the active films possessed good inhibitory effects against the gram‐positive bacteria ( L. monocytogenes and Staphylococcus aureus ) and were less powerful against gram‐negative bacteria ( Escherichia coli and S. typhimurium ). Finally, the results highlighted that GGEO can act as an excellent antimicrobial agent in combination with CMC‐PVA composite.