Agro-industrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films

López, Olivia V.; Versino, Florencia; Villar, Marcelo A.; García, María Alejandra

doi:10.1016/j.carbpol.2015.07.081

Cited by 33 publications

(20 citation statements)

References 36 publications

(45 reference statements)

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“…Similar results were obtained in cornstarch TPS films reinforced with the residue of the starch extraction from Pachyrhizus ahipa roots, which is mainly constituted by remaining cell walls, starch granules and natural fibres . AFM studies revealed the formation fibres agglomerates which seemed to be randomly oriented, increasing films roughness.…”

Section: Scale‐up Of Film Productionsupporting

confidence: 81%

“…TPS films containing talc nanoparticles (0–5% w/w) were obtained by thermo‐compression moulding and their structural properties were analyzed . López et al stressed that talc concentrations higher than 3% w/w significantly increased stiffness and yield stress of TPS films, without affecting their elongations at break (Table ). Furthermore, tightness of TPS packaging bags was improved by 3% w/w talc, mainly due to the enhancement of films water and oxygen barrier properties.…”

Section: Scale‐up Of Film Productionmentioning

confidence: 99%

See 1 more Smart Citation

Starch‐based films and food coatings: An overview

et al. 2016

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Native and modified starches have received considerable attention for biodegradable films formulation due to their completely biodegradable nature, edible characteristics, and low cost. Development and characterization of starch films obtained by: (i) casting, (ii) blown extrusion and (iii) the thermo-compression moulding process are described. The rheological properties of filmogenic suspensions, the barrier properties, and the mechanical resistance of the obtained films are reported. Addition of specific additives to the formulations modifies the film functionality transforming them into active materials. Diffusion of antimicrobial agents such as potassium sorbate from the active starch film, as well as their efficacy in dairy products is discussed. Likewise, reinforcing agents lead to composite materials with improved mechanical resistance. Starch-based materials show higher permeability to carbon dioxide than to oxygen, which is useful to control the respiration rate of fruits and vegetables. The application of active starch-based coatings to strawberries and Brussels sprouts in order to prolong their refrigerated storage life is analyzed. A detailed overview on the formulation and performance of starch-based films employing industrial and lab-scale methods, as well as the application of starch coatings to improve food quality is presented, with the aim of analyzing the possibility of development and application of such materials.

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Section: Scale‐up Of Film Productionsupporting

confidence: 81%

Section: Scale‐up Of Film Productionmentioning

confidence: 99%

Starch‐based films and food coatings: An overview

et al. 2016

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“…[12,29] In short, the mechanical performance of biopolymers based on thermoplastic starches is strongly affected by several parameters such as the botanical origin of starch (amylose/amylopectin ratio), the ambient circumstances (temperature and humidity), processing method as well as plasticizer type and concentration. [74,75]…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Physical, thermal, morphological, and tensile properties of cornstarch-based films as affected by different plasticizers

Ibrahim

Sapuan

Zainudin

et al. 2019

International Journal of Food Properties

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The current research was designed to determine the effect of various concentrations (0%, 25%, 40%, and 55%) of fructose, sorbitol and urea plasticizers in cornstarch-based films, with the aim of achieving a new polymer for the application of biodegradable materials. Casting technique was used to prepare the films. The physical, morphological, thermal, and mechanical properties of produced films were evaluated. The results showed that the thickness, moisture content, and water solubility increased with the addition of plasticizer concentration. While the glass transition temperatures showed an insignificant effect with high plasticizer content. Regardless of plasticizer sort, the tensile stress and Young's modulus of plasticized films decreased as the plasticizer concentrations were raised beyond 25%. Likewise, the relative crystallinity decreased by increasing the plasticizer content from 0% to 25%, but it began to grow once the concentration increased above 25%. The fructose-plasticized films presented consistent and more coherent surfaces compared to sorbitol and urea counterparts, which appeared less homogeneous surfaces with microcracks. In summary, the plasticizers types and concentrations are affected significantly on the properties and performance of the cornstarch-based film. Film plasticized with 25% fructose appeared the finest set of features and achieved the highest mechanical performance among the plasticizers used in this study.

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“…En general, el agregado de fibra solo modificó significativamente (p<0,05) la temperatura de transición vítrea de la fase rica en almidón, observándose un aumento de la misma con el contenido del relleno (Fig.3). Este comportamiento ha sido reportado en trabajos anteriores y por otros autores [14,15,17,18]. En general, luego del almacenamiento no se observaron diferencias significativas (p>0,05) en las temperaturas de transición vítrea de los materiales estudiados en función del tiempo independientemente de su composición (Tabla 2), con una excepción: las muestras con mayor contenido de fibra presentaron una disminución significativa (p<0,05) de la temperatura de transición vítrea correspondiente a la fase rica en plastificante (Tg 1 ).…”

Section: Figuraunclassified

Materiales eco-compatibles reforzados a base de almidón de mandioca para aplicaciones agronómicas

Versino

García

2018

Matéria (Rio J.)

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RESUMEN La utilización de plásticos de cobertura o mulching en diversos cultivos puede aumentar los rendimientos, extender la temporada de crecimiento, controlar malezas, aumentar la eficiencia de los fertilizantes y mejorar las condiciones del suelo. Sin embargo, luego de su uso son fuente de contaminación ambiental y su remoción genera un costo adicional. Para este fin y otras aplicaciones de interés agronómico el uso de películas a base de almidón es una alternativa viable debido a su biodegradabilidad, procedencia de un recurso renovable y relativo bajo costo. En el presente trabajo se exponen los resultados obtenidos en el desarrollo y estudio de materiales biodegradables a base de almidón de mandioca reforzados con el bagazo de la raíz, evaluando su biodegradabilidad en suelo y el efecto de la exposición de las mismas a ciclos de luz UV-visible (foto-períodos) durante 60 días. El agregado de fibra da lugar a películas más opacas y coloreadas, aumentó su permeabilidad al vapor de agua en un 53%, e incrementó su resistencia máxima a la tracción y módulo elástico. Asimismo, durante el almacenamiento se observó que tanto las propiedades ópticas como la solubilidad de las películas se mantuvieron. No obstante los materiales evidenciaron signos de envejecimiento, ya que aumentó su rigidez y cristalinidad. Las películas sin fibra mostraron un aumento marcado del módulo elástico y la tensión máxima en la ruptura, así como una disminución de la elongación; mientras que en las películas reforzadas este efecto fue menor. Para evaluar la biodegradación, las muestras se enterraron en tierra fértil bajo condiciones ambientales controladas. Al cabo de 42 días de ensayo se observó que tanto los materiales reforzados como los controles presentaban una pérdida de peso mayor al 60%, evidenciando su biodegradabilidad. En conclusión, es posible desarrollar materiales eco-compatibles reforzados de almidón de mandioca con posibles usos agronómicos.

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Agro-industrial residue from starch extraction of Pachyrhizus ahipa as filler of thermoplastic corn starch films

Cited by 33 publications

References 36 publications

Starch‐based films and food coatings: An overview

Starch‐based films and food coatings: An overview

Physical, thermal, morphological, and tensile properties of cornstarch-based films as affected by different plasticizers

Materiales eco-compatibles reforzados a base de almidón de mandioca para aplicaciones agronómicas

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