Physical and mechanical properties of agar based edible film with glycerol plasticizer

Rusli, Arham

doi:10.31227/osf.io/tq2pf

Cited by 9 publications

(7 citation statements)

References 32 publications

(39 reference statements)

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“…The mechanical properties of the films were assayed by tensile testing at room temperature, reported in Table 3. The ε of the films A, B, D and F are better than the ε reported by different authors for pure casted films of Agar at 10% [36], 31% [37] and 45.2% [38]; XG at 56% [39]; CMC films at 50% [1] with glycerine as a plasticizer. The tensile strength of films A, B and F are nearly 40% of the strength of commercial cellulose acetate films [40].…”

Section: Mechanical and Rheological Properties Of The Filmscontrasting

confidence: 62%

Thermo Compression of Thermoplastic Agar-Xanthan Gum-Carboxymethyl Cellulose Blend

et al. 2021

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There is a gap in the literature for the preparation of agar-xanthan gum-carboxymethyl cellulose-based films by thermo compression methods. The present work aims to fill this gap by blending the polysaccharides in a plastograph and preparation of films under high pressure and temperature for a short duration of time. The pivotal aim of this work is also to know the effect of different mixing conditions on the physical, chemical, mechanical and thermal properties of the films. The films are assessed based on results from microscopic, infrared spectroscopic, permeability (WVTR), transmittance, mechanical, rheological and thermogravimetric analysis. The results revealed that the mixing volume and mixing duration had negative effects on the films’ transparency. WVTR was independent of the mixing conditions and ranged between 1078 and 1082 g/m2.d. The mixing RPM and mixing duration had a positive effect on the film tensile strength. The films from the blends mixed at higher RPM for a longer time gave elongation percentage up to 78%. Blending also altered the crystallinity and thermal behavior of the polysaccharides. The blend prepared at 80 RPM for 7 min and pressed at 140 °C showed better percent elongation and light barrier properties.

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Section: Mechanical and Rheological Properties Of The Filmscontrasting

confidence: 62%

Thermo Compression of Thermoplastic Agar-Xanthan Gum-Carboxymethyl Cellulose Blend

et al. 2021

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“…The absorption of moisture by the films could be assignable to the constituents that made up the film, for instance glycerol. As reported by Rusli (2017) , glycerol is capable of increasing the moisture absorption ability to a certain extent and causing an increment in thickness by film swelling. Therefore, it can be deduced that the GA-loaded films with a lower percentage of moisture absorption is more favorable for low to medium exudative wounds.…”

Section: Discussionmentioning

confidence: 74%

Formulation and characterisation of alginate hydrocolloid film dressing loaded with gallic acid for potential chronic wound healing

Gan

Chin

2021

F1000Res

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Background: A dramatic growth in the prevalence of chronic wounds due to diabetes has represented serious global health care and economic issues. Hence, there is an imperative need to develop an effective and affordable wound dressing for chronic wounds. Recent research has featured the potential of bioactive compound gallic acid (GA) in the context of wound recovery due to their safety and comparatively low cost. However, there is a scarcity of research that focuses on formulating GA into a stable and functional hydrocolloid film dressing. Thus, this present study aimed to formulate and characterise GA-loaded alginate-based hydrocolloid film dressing which is potentially used as low to medium suppurating chronic wound treatment. Methods: The hydrocolloid composite films were pre-formulated by blending sodium alginate (SA) with different combinations of polymers. The hydrocolloid films were developed using solvent-casting method and the most satisfactory film formulation was further incorporated with various GA concentrations (0.1%, 0.5% and 1%). The drug-loaded films were then characterised for their physicochemical properties to assess their potential use as drug delivery systems for chronic wound treatment. Results: In the pre-formulation studies, sodium alginate-pectin (SA-PC) based hydrocolloid film was found to be the most satisfactory, for being homogenous and retaining smoothness on surface along with satisfactory film flexibility. The SA-PC film was chosen for further loading with GA in 0.1%, 0.5% and 1%. The characterisation studies revealed that all GA-loaded films possess superior wound dressing properties of acidic pH range (3.97-4.04), moderate viscosity (1600 mPa-s-3198 mPa-s), optimal moisture vapor transmission rate (1195 g/m2/day, 1237g/m2/day and 1112 g/m2/day), slower moisture absorption and film expansion rate and no chemical interaction between the GA and polymers under FTIR analysis. Conclusion: An SA-PC hydrocolloid film incorporated with gallic acid as a potentially applicable wound dressing for low to medium suppurating chronic wounds was successfully developed.

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“…In ready meals, soluble packaging materials are frequently used. Conversely, there is a need for a packaging film that has low solubility to improve product integrity and water resistance (Rusli, 2017). The water solubility of composite WCS‐PVA films with both glycerol and sorbitol at varying concentrations were depicted in Table 1.…”

Section: Resultsmentioning

confidence: 99%

Development of novel biodegradable water chestnut starch/PVA composite film. Evaluation of plasticizer effect over physical, barrier, and mechanical properties

Zehra

Nawab

Alam

et al. 2022

Food Processing Preservation

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A novel starch source from water chestnut (WCS) was used to develop composite film with polyvinyl alcohol (PVA) and different plasticizer's effects on functional properties were investigated. Results showed that the plasticizer decreased the swelling capacity but conversely increased the film solubility. The tensile strength (TS) of WCS-PVA film improved when incorporating plasticizer but gradually reduced at higher plasticizer concentration. The TS reached the maximum value of 28.82 and 17.14 MPa with sorbitol and glycerol, respectively, at 20% concentration. Conversely, elongation at break was decreased first and then increased with concentration. The water vapor permeability was observed to be slightly increased from 1.698 × 10 −10 to 1.744 × 10 −10 g Pa −1 m −1 s −1 for G-plasticized films and 1.124 × 10 −10 to 1.134 × 10 −10 g Pa −1 m −1 s −1 for S-plasticized films. Also, the result indicated that the incorporation of plasticizers enhanced biodegradability and made them suitable for food packaging without any hazardous effects. Novelty impact statementIn previous work, starch-based films with polyvinyl alcohol (PVA) were prepared from different starch sources. However, no study has been reported so far on biocomposite film made from water chestnut with PVA. This paper was reported for the first time for the development of WCS-PVA biocomposite film and demonstrated the different plasticizer effects on its physical, barrier, and mechanical properties.

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Physical and mechanical properties of agar based edible film with glycerol plasticizer

Cited by 9 publications

References 32 publications

Thermo Compression of Thermoplastic Agar-Xanthan Gum-Carboxymethyl Cellulose Blend

Thermo Compression of Thermoplastic Agar-Xanthan Gum-Carboxymethyl Cellulose Blend

Formulation and characterisation of alginate hydrocolloid film dressing loaded with gallic acid for potential chronic wound healing

Development of novel biodegradable water chestnut starch/PVA composite film. Evaluation of plasticizer effect over physical, barrier, and mechanical properties

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