Natural-based plasticizers and biopolymer films: A review

Vieira, Melissa Gurgel Adeodato; Silva, Mariana Altenhofen da; Santos, Lucielen Oliveira; Beppu, Marisa Masumi

doi:10.1016/j.eurpolymj.2010.12.011

Cited by 1,591 publications

(880 citation statements)

References 84 publications

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“…The addition of plastifiers to gelatin films provides characteristics such as an increase in the processability and resistance of the films, and the capacity to increase the free volume and molecular mobility, since these reduce the cohesive strength of the films through limiting the intermolecular forces responsible for the inter-chain interactions (Sothornvit and Krochta, 2000;Vanin et al, 2005;Vieira et al, 2011;Jiménez et al, 2012). These substances reduce the strain deformation, hardness and electrostatic charges.…”

Section: Introductionmentioning

confidence: 99%

Influence of bloom number and plastifiers on gelatin matrices produced for enzyme immobilization

Kempka

Souza

et al. 2014

Braz. J. Chem. Eng.

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-In this study the immobilization of lipase in matrices produced with gelatin with different Bloom values and with the addition of plastifiers was investigated to evaluate the influence of the Bloom value, as well as the capacity of the plastifiers to maintain the enzyme immobilized and the immobilization yield. The results indicated the need for crosslinking of the matrices with glutaraldehyde due to the high solubility in water, explained by the amino acid profile, which confirms the solubility of gelatin. Mannitol showed greater efficiency in the lipase immobilization, since it led to more porous structures and more uniform pores. These structures were also influenced by the gelatin concentration; greater concentrations associated with intermediate concentrations of plastifier led to matrices with a greater immobilization yield (87.92%). The X-ray diffraction analysis revealed that the structure of the immobilization matrices was partially crystalline.

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Section: Introductionmentioning

confidence: 99%

Influence of bloom number and plastifiers on gelatin matrices produced for enzyme immobilization

Kempka

Souza

et al. 2014

Braz. J. Chem. Eng.

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“…7b, c, e, and f) exhibited a smoother and more continuous surface with increasing mechanical activation time. These differences may be attributed to the impact, grind, and shear forces of mechanical activation, which decrease the intermolecular forces between pectin molecules and thus increase their motion (Vieira et al 2011).…”

Section: T (°C)mentioning

confidence: 99%

Preparation and in vitro Release Mechanisms of Modified Pectin Matrix Tablets for Colon-Targeted Drug Delivery

Lei

et al. 2017

BioResources

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To deliver bioactive components to the colon, an oral, colon-targeted, microparticle delivery system was developed based on pectin. Pectin was modified by mechanical activation, resulting in controllable release properties, as well as dramatic decreases in solubility. Mechanically activated pectins (MAP) were characterized by Fourier transformed infrared (FTIR) spectroscopy, nuclear magnetic resonance ( 1 H-NMR) spectroscopy, differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). The FTIR and 1 H-NMR analyses revealed that after mechanical activation, the hydrogen bonds between pectin molecules were broken, and intermolecular crosslinking was decreased. The DSC analysis indicated that the thermal stability of pectin was decreased by mechanical activation. The SEM revealed that MAP particles were smaller, more uniform, and had smoother surfaces than unmodified pectin. An in vitro release assay and the study of drug release kinetics demonstrated that bovine serum albumin (BSA) release from MAP-containing matrix tablets was controllable. The results demonstrated that at a suitable pectin content and hydrophobicity level, matrix tablets prepared with MAP can exhibit good colon-targeted drug release.

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“…Many industrial sectors (pharmaceutical, nutraceutical, food packaging, cosmetics, biotechnology, and fi ne chemicals) are focusing on the utilization of functional biomolecules to offer advanced eco-friendly products [6]. In fact, biomass, which represents nature's largest renewable reservoir of potentially fermentable carbohydrates and other valuable compounds, is mostly wasted in the form of pre-harvest and post-harvest agricultural losses and wastes of food processing industries.…”

Section: Introductionmentioning

confidence: 99%

Valorization of Agricultural Wastes for the Production of Protein-Based Biopolymers

Burgos¹,

Valdés²,

Jiménez³

2016

j renew mater

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In this study we provide an overview of the latest developments on the extraction, production, modifi cation and applications of fruit residues and by-products in the formation of protein-based biopolymers, in particular for the formulation of edible fi lms. Our aim was mainly to demonstrate the highly transdisciplinary character of these topics by giving an overview of the main developments and research topics in the chemistry and engineering aspects of protein-based biopolymers. These innovative raw materials have been evaluated for the production of biomaterials to be used in some key sectors, such as food packaging.

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Natural-based plasticizers and biopolymer films: A review

Cited by 1,591 publications

References 84 publications

Influence of bloom number and plastifiers on gelatin matrices produced for enzyme immobilization

Influence of bloom number and plastifiers on gelatin matrices produced for enzyme immobilization

Preparation and in vitro Release Mechanisms of Modified Pectin Matrix Tablets for Colon-Targeted Drug Delivery

Valorization of Agricultural Wastes for the Production of Protein-Based Biopolymers

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