- Title
- Characterization of rice starch-L-carrageenan biodegradable edible film. Effect of stearic acid on the film properties
- Creator
- Thakur, Rahul; Saberi, Bahareh; Pristijono, Penta; Golding, John; Stathopoulos, Costas; Scarlett, Christopher; Bowyer, Michael; Vuong, Quan
- Relation
- ARC.IC140100032 http://purl.org/au-research/grants/arc/IC140100032
- Relation
- International Journal of Biological Macromolecules Vol. 93, Part A, December 2016, p. 952-960
- Publisher Link
- http://dx.doi.org/10.1016/j.ijbiomac.2016.09.053
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2016
- Description
- The main aim of this study was to develop rice starch (RS), ι-carrageenan (ι-car) based film. Different formulations of RS (1–4%, w/w), ι-car (0.5–2%, w/w) was blended with stearic acid (SA; 0.3–0.9%, w/w) and glycerol (1%, w/w) as a plasticizer. The effect of film ingredients on the thickness, water vapour permeability (WVP), film solubility (FS), moisture content (MC), colour, film opacity (FO), tensile strength (TS), elongation-at-break (EAB) of film was examined. Interactions and miscibility of partaking components was studied by using Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). Hydrocolloid suspension solution of mix polysaccharides imparted a significant impact (p < 0.05) on the important attributes of resulting edible film. TS and EAB of film were improved significantly (p < 0.05) when ι-car was increased in the film matrix. Formulation F1 comprising 2% ι-car, 2% RS, 0.3% SA, Gly 30% w/w and 0.2% surfactant (tween®20) provided film with good physical, mechanical and barrier properties. FT-IR and XRD results reveal that molecular interactions between RS-ι-car have a great impact on the film properties confining the compatibility and miscibility of mixed polysaccharide. Results of the study offers new biodegradable formulation for application on fruit and vegetables.
- Subject
- biopolymers; biodegradable; edible film
- Identifier
- http://hdl.handle.net/1959.13/1347538
- Identifier
- uon:30061
- Identifier
- ISSN:0141-8130
- Language
- eng
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