Biopolímeros naturales usados en empaques biodegradables

Villada, Héctor Samuel; Acosta, Harold; Velasco, Reinaldo

doi:10.21897/rta.v12i2.652

Cited by 17 publications

(12 citation statements)

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“…Uses as an ingredient in livestock feed mixed with grain and silage have also been reported . Among these applications, the use of waxes in fruit dip coatings is one of the oldest preservation and protection methods .…”

Section: Introductionmentioning

confidence: 99%

Characterization of waxes and residual oil recovered from sunflower oil winterization waste

Chalapud

Baümler

Carelli

2016

Euro J Lipid Sci & Tech

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Two filter cakes from the sunflower oil winterization process were used to recover, fractionate and characterize their oil and wax fractions. Both samples presented high lipid content (75.35 and 58.21% dry basis) composed of 88.1 and 89.1% oil and 11.9 and 8.9% waxes. Recovered oils had a very low free fatty acid content, differences in the degree of deterioration consistent with their fatty acid composition, and significant differences in their wax contents, which were in the order of crude sunflower oils (1356–604 mg/kg). Purified waxes were between 40 and 60 carbon atoms with a fatty alcohol and fatty acid distribution in the range of 18–34 and 14–34 carbon atoms, respectively. Significant differences were found between samples in their wax and fatty acid profiles according to differences between the hybrids studied. DSC thermograms presented differences in the onset temperature (71.98 and 75.15°C), melting peak (76.70 and 80.53°C), and melting enthalpies (202.77 and 204.35 J/g), with the lower values being exhibited by the sample with higher fatty acid unsaturation and lower content of waxes with more carbon atoms. Practical applications: Results revealed the potential use of this waste, reducing oil losses and recovering waxes with an adequate quality for their application in various industries. The characterization of the purified waxes is of extreme importance for their potential use in different industries and technologies. This is also of great environmental relevance, because the waste material generated by the winterization process could be reused, and thus gain added value. Waste samples consisting of wax, oil, and filter aid are fractionated using n‐hexane to obtain purified waxes and oil. The by‐products are characterized, quantified, and qualified for its potential use.

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Section: Introductionmentioning

confidence: 99%

Characterization of waxes and residual oil recovered from sunflower oil winterization waste

Chalapud

Baümler

Carelli

2016

Euro J Lipid Sci & Tech

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“…El reemplazo total de los plásticos sintéticos por materiales biodegradables no se ha logrado hasta el presente, no obstante si se han sustituido algunos polímeros sintéticos por otros naturales, en aplicaciones específicas. Los polímeros sintéticos están siendo reemplazados gradualmente por materiales biodegradables de fuentes naturales en algunas aplicaciones a nivel agrícola e industrial (Villada et al, 2007). Rubio (2012) resalta que los materiales biodegradables se utilizan actualmente en diversos sectores, teniendo en cuenta las características funcionales que debe presentar el material según la aplicación específica a la que se destine.…”

Section: Introductionunclassified

Propiedades Mecánicas de un Material de Pectina para Revestimiento de Fibras Naturales Utilizadas en Aplicaciones Agrícolas

2019

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ResumenEl objetivo de este estudio fue evaluar las propiedades mecánicas porcentaje de elongación (%) y resistencia a la tracción (MPa) de películas de pectina (4% y 6% p/v), aceite mineral (2% y 6% p/v) y glicerol (3% y 6% p/v), elaboradas por el método de moldeado (casting). Se utilizó un diseño factorial 2 3 con optimización de múltiples respuestas. Las concentraciones óptimas fueron pectina (5,0% p/v), glicerol (4,5% p/v) y aceite (4,0 % p/v) Se obtuvo elongación del 33,12 ± 4,39 %, tracción de 18,09 ± 2,98 MPa, esfuerzo de ruptura de 7,13 ± 0,60 N y módulo de Young de 105,04 ± 13,94 MPa. El glicerol proporcionó elongación, mientras que la pectina y el aceite mejoran la resistencia a la tracción. El material se ha desarrollado pensando en su posible aplicación como revestimiento de fibras naturales ya que este material puede mejorar la estabilidad de la fibra y sus propiedades mecánicas. Palabras clave: material biodegradable; pectina; elongación; resistencia a la tracción; fibras naturales AbstractThe objective of this study was to evaluate the mechanical properties: percentage of elongation (%) and tensile strength (MPa) of pectin films (4% and 6% w/v), mineral oil (2% and 6% p/v) and glycerol (3% and 6% w/v), prepared by the casting method. A factorial design 2 3 with optimization of multiple responses was used. The optimal concentrations were: pectin (5.0% w/ v), glycerol (4.5% w/v) and oil (4.0% w/v), was obtained elongation 33.12 ± 4.39% , tensile strength 18.09 ± 2.98 MPa, rupture effort of 7.13 ± 0.60 N and Young's modulus of 105.04 ± 13.94 MPa. The glycerol provided elongation, while the pectin and oil improve the tensile strength. The material has been developed thinking about its possible application as a coating of natural fibers, since this new material can improve the stability of the fiber and its mechanical properties.

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“…Actualmente, se está haciendo grandes esfuerzos por desarrollar polímeros biodegradables con el fin de ofrecer alternativas a los polímeros convencionales en aplicaciones tales como empaques para alimentos y bolsas de basura. El uso de polímeros biodegradables tales como almidón puede ser una solución interesante debido a su bajo costo, abundancia, y fácil biodegradabilidad [1][2][3][4][5][6]. La obtención de polímeros biodegradables de la yuca, papa y maíz, pueden generar una opción de mejora ambiental y nuevas oportunidades de desarrollo empresarial, sin embargo, es importante identificar y evaluar el recurso en función al factor socio-económico, así como caracterizar los polímeros biodegradables generados y comparar sus propiedades físicas y químicas para los usos que se pueden dar.…”

Section: Introductionunclassified

Obtencion De Biopolimeros De Papa Como Una Alternativa Al Desarrollo De Materiales Inocuos Al Medio Ambiente

Alarcón

Arroyo

2017

TECNIA

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Biopolímeros naturales usados en empaques biodegradables

Cited by 17 publications

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Characterization of waxes and residual oil recovered from sunflower oil winterization waste

Characterization of waxes and residual oil recovered from sunflower oil winterization waste

Propiedades Mecánicas de un Material de Pectina para Revestimiento de Fibras Naturales Utilizadas en Aplicaciones Agrícolas

Obtencion De Biopolimeros De Papa Como Una Alternativa Al Desarrollo De Materiales Inocuos Al Medio Ambiente

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