Physicochemical Properties of Composite Materials Based on Thermoplastic Yam Starch and Polylactic Acid Improved with the Addition of Epoxidized Sesame Oil

Gómez-Contreras, Paula; Contreras-Camacho, Mónica; Ávalos-Belmontes, Felipe; Collazo‐Bigliardi, Sofía; Ortega-Toro, Rodrigo

doi:10.1007/s10924-021-02119-0

Cited by 15 publications

(10 citation statements)

References 23 publications

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“…The bending vibration frequency of O-C=O was observed at 1159.22 cm -1 , while the peak corresponding to the O-H bending frequency appeared at 1101.35 cm -1 . Hence, the detailed analyses of the characteristic peaks confirmed that the oil used for this study was sesame oil [20], which is comprised majorly of linoleic acid, oleic acid, palmitic acid, and stearic acid. Therefore, this oil is composed of fatty acids that are monounsaturated and polyunsaturated as well as saturated.…”

Section: Advances In Polymer Technologysupporting

confidence: 53%

Oil-Incorporated Poly(Lactic Acid) as an Alternative Material for Orthodontic Base Plate: A 3D Printing Approach

Naveed

Dutta

Balamurugan

et al. 2022

Advances in Polymer Technology

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Removable orthodontic appliances fabricated from poly (methyl methacrylate) (PMMA) have been routinely used for active orthodontic correction and as retention appliances. This article reports the use of a combination of biodegradable-grade poly (lactic acid) (PLA) and cooking-grade sesame oil as a biodegradable alternative for PMMA. The underlying purpose is to combat the environmental hazards due to nondegradable PMMA as well as to overcome its structural and mechanical drawbacks. The fabrication technique that has been used is fused deposition modeling-based 3D printing technology. Oil-dipping for 24 h was done to render the PLA hydrophobic and to reduce its brittleness. Incorporation of oil within the PLA base plate has been confirmed by FT-IR and FT-Raman spectroscopic techniques. The PLA-cooking oil material has exhibited satisfactory tensile, compressive and flexural strengths. The proposed material has demonstrated excellent attributes in terms of product precision, dimensional stability, density, hardness, and maximum load bearing capacity for the purpose of fabricating orthodontic appliances.

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Section: Advances In Polymer Technologysupporting

confidence: 53%

Oil-Incorporated Poly(Lactic Acid) as an Alternative Material for Orthodontic Base Plate: A 3D Printing Approach

Naveed

Dutta

Balamurugan

et al. 2022

Advances in Polymer Technology

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“…The contact angles were higher in the films containing essential oils, due to the presence of oily molecules that increase the surface tension of the water droplets on the surface of the film. Other authors also observed similar water contact angle values for yam starch-based films ranging from 44.0 • to 63.3 • , indicating that the higher the contact angle value, the more hydrophobic the material [39].…”

Section: Interaction With Watermentioning

confidence: 53%

Effect of Different Essential Oils on the Properties of Edible Coatings Based on Yam (Dioscorea rotundata L.) Starch and Its Application in Strawberry (Fragaria vesca L.) Preservation

et al. 2021

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Every year the world loses about 50% of fruits and vegetables post-harvest and in the supply chain. The use of biodegradable coatings and films with antioxidant properties has been considered an excellent alternative to extend the shelf life of food. Therefore, the objective of this work was to develop a coating based on yam (Dioscorea rotundata L.) starch-containing lime, fennel, and lavender essential oils to extend the shelf life of strawberries (Fragaria vesca l.). The tensile properties, barrier properties (water vapour permeability (WVP) and oxygen permeability (OP)), moisture content, water-solubility, absorption capacity, water contact angle, optical properties, the antioxidant activity of the resultant starch-based coatings were evaluated. After that, the active properties of the coatings were assessed on strawberries inoculated with Aspergillus niger during 14 days of storage at 25 °C. The results showed that the incorporation of essential oils improved the elongation and WVP and provided antioxidant capacity and antimicrobial activity in the films. In particular, the essential oil of lime showed higher antioxidant activity. This fact caused the unwanted modification of other properties, such as the decrease in tensile strength, elastic modulus and increase in OP. The present study revealed the potential use of lime, fennel, and lavender essential oils incorporated into a polymeric yam starch matrix to produce biodegradable active films (antioxidant and antimicrobial). Obtained films showed to be a viable alternative to increase the shelf life of strawberries and protect them against Aspergillus niger.

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“…De acuerdo con la metodología empleada anteriormente por Gómez-Contreras et al (2021), el análisis termogravimétrico (TGA) se realizó en un equipo Perkin-Elmer modelo TGA-4000 a 20 °C min −1 . Las muestras de las películas analizadas tenían un peso entre 8 y 10 mg, fueron puestas en crisoles de cerámica y calentadas entre de 25 a 800 °C a una tasa de calentamiento de 10°/min.…”

Section: Propiedades Térmicasunclassified

Obtención y caracterización de colágeno del pez de agua dulce Prochilodus magdalenae: aplicación en películas biodegradables

2023

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El objetivo de este trabajo es obtener y caracterizar colágeno de diferentes partes residuales del pez de agua dulce Prochilodus magdalenae (Pm) para explorar su aplicación en películas biodegradables. Se utiliza piel, escamas, aletas y cabezas de Pm para extraer colágeno y elaborar películas usando hidroxipropil metilcelulosa (HPMC). Los resultados muestran que la extracción de colágeno con mayor rendimiento se obtiene de la piel. Las mejores propiedades térmicas se observan en la piel y las escamas. Las películas biodegradables se hacen más fuertes, menos rígidas y deformables con la adición de colágeno. Además, se observan dos etapas de degradación térmica típicas del HPMC. Las micrografías revelan que las películas ganan suavidad superficial con la presencia del colágeno, aunque la barrera al vapor de agua se hace ligeramente menor. Se concluye que el uso de colágeno obtenido de residuos de Pm tiene aplicaciones prometedoras para el desarrollo de películas biodegradables.

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Physicochemical Properties of Composite Materials Based on Thermoplastic Yam Starch and Polylactic Acid Improved with the Addition of Epoxidized Sesame Oil

Cited by 15 publications

References 23 publications

Oil-Incorporated Poly(Lactic Acid) as an Alternative Material for Orthodontic Base Plate: A 3D Printing Approach

Oil-Incorporated Poly(Lactic Acid) as an Alternative Material for Orthodontic Base Plate: A 3D Printing Approach

Effect of Different Essential Oils on the Properties of Edible Coatings Based on Yam (Dioscorea rotundata L.) Starch and Its Application in Strawberry (Fragaria vesca L.) Preservation

Obtención y caracterización de colágeno del pez de agua dulce Prochilodus magdalenae: aplicación en películas biodegradables

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