Plantago major seed gum based biodegradable films: Effects of various plant oils on microstructure and physicochemical properties of emulsified films

Plantago major seed (PMS) contains significant amounts of gum which potentially can be used in biopolymer based packaging. This research has evaluated the effects of different kinds of plant oils, including olive, maize and canola on the various aspects of the PMS gum based biodegradable films. Inco...

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Bibliographic Details
Published in:Polymer testing 2019-08, Vol.77, p.105868, Article 105868
Main Authors: Niknam, Rasoul, Ghanbarzadeh, Babak, Ayaseh, Ali, Hamishehkar, Hamed
Format: Article
Language:English
Subjects:
Biodegradable biopolymer
DSC
Emulsified films
Plantago major seed gum
SEM
XRD
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Summary:Plantago major seed (PMS) contains significant amounts of gum which potentially can be used in biopolymer based packaging. This research has evaluated the effects of different kinds of plant oils, including olive, maize and canola on the various aspects of the PMS gum based biodegradable films. Incorporation of plant oils increased the film thickness and strain at break (SAB) values and decreased moisture content, moisture absorption, water vapor permeability (WVP), ultimate tensile strength (UTS), melting point (Tm) and glass transition point (Tg). Scanning electron microscopy (SEM) indicated that the microstructure of the control film appeared smooth, compact and homogeneous and incorporating of oils led to rougher structure. XRD analysis of samples demonstrated a typical semi-crystalline structure in the emulsified PMS gum based film. •The edible films successfully were produced from PMS gum.•The PMS gum based films were modified by plant oils.•The incorporation of plant oils increased the strain at break and decreased WVP, ultimate tensile strength.•Incorporating of plant oils led to microstructure change from smooth to rougher surface.•XRD analysis demonstrated a typical semi-crystalline structure in PMS based films.
ISSN:0142-9418
1873-2348
DOI:10.1016/j.polymertesting.2019.04.015