Biodegradable and active zein-gelatin-based electrospun mats and solvent-cast films incorporating sage extract: Formulation and comparative characterization

Salević, Ana; Lević, Steva; Stojanović, Dušica; Jeremić, Sanja; Miletić, Dunja; Pantić, Milena; Pavlović, Vladimir; Ignjatović, Ivana Sredović; Uskoković, Petar S.; Nedović, Viktor

doi:10.1016/j.fpsl.2023.101027

Cited by 12 publications

(4 citation statements)

References 53 publications

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“…Figure 3 shows the spectra of gelatin-based nanofibers. The neat gelatin nanofibers showed characteristic bands in agreement with those previously identified in the literature for gelatin-based materials [35,36]. These bands were as follows: 3294 (hydrogen bonding and N-H stretching, amide A), 2936 (C-H stretching vibrations of aliphatic groups), 1647 (C=O stretching vibrations, amide I), 1541 (C-N bending and stretching vibrations, amide II), 1456 (N-H bend and C-N stretching combination band, NH3 + symmetric deformation), 1339 (C-H deformation of methyl group), 1238 (C-N stretching and N-H bending, amide III), and 1082 (C-O stretching) cm −1 .…”

Section: Fourier Transform Infrared Spectroscopysupporting

confidence: 87%

“…This band was shifted from 1647 cm −1 for the neat gelatin and gelatin-pumpkin leaf extract blend fibers to 1635 and 1636 cm −1 after vitamin B12 encapsulation within sole gelatin fibers and gelatin-pumpkin leaf extract blend-based fibers, respectively. This spectral change implies intermolecular interactions between the protein-based matrix and the active compound and changes in proteins' structure induced by the active compound incorporation [36]. According to the literature, cobalamin interacts with proteins with different binding affinity for different proteins by hydrogen bond, hydrophobic force, and π-π interactions [37].…”

Section: Thermal Stability Analysismentioning

confidence: 99%

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The Application of Protein Concentrate Obtained from Green Leaf Biomass in Structuring Nanofibers for Delivery of Vitamin B12

Balanč,

Salević-Jelić,

Đorđević

et al. 2024

Foods

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Nanofibers made of natural proteins have caught the increasing attention of food scientists because of their edibility, renewability, and possibility for various applications. The objective of this study was to prepare nanofibers based on pumpkin leaf protein concentrate (LPC) as a by-product from some crops and gelatin as carriers for vitamin B12 using the electrospinning technique. The starting mixtures were analyzed in terms of viscosity, density, surface tension, and electrical conductivity. Scanning electron micrographs of the obtained nanofibers showed a slight increase in fiber average diameter with the addition of LPC and vitamin B12 (~81 nm to 109 nm). Fourier transform infrared spectroscopy verified the physical blending of gelatin and LPC without phase separation. Thermal analysis showed the fibers had good thermal stability up to 220 °C, highlighting their potential for food applications, regardless of the thermal processing. Additionally, the newly developed fibers have good storage stability, as detected by low water activity values ranging from 0.336 to 0.376. Finally, the release study illustrates the promising sustained release of vitamin B12 from gelatin-LPC nanofibers, mainly governed by the Fickian diffusion mechanism. The obtained results implied the potential of these nanofibers in the development of functional food products with improved nutritional profiles.

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Section: Fourier Transform Infrared Spectroscopysupporting

confidence: 87%

Section: Thermal Stability Analysismentioning

confidence: 99%

The Application of Protein Concentrate Obtained from Green Leaf Biomass in Structuring Nanofibers for Delivery of Vitamin B12

Balanč,

Salević-Jelić,

Đorđević

et al. 2024

Foods

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“…It is interesting that, when we compare the WVP values of the obtained composite films with the WVP value of the widely used commercial PVC film (72.5 × 10 −10 g/Pa∙s∙m) [ 55 , 56 ], it is clear that the samples examined in this study have significantly lower values, especially sample PVDF/BT20/BNC/Fe 3 O 4 .…”

Section: Resultsmentioning

confidence: 88%

Structural, Mechanical, and Barrier Properties of the Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Hybrid Composite

Janićijević,

Filipović,

Sknepnek

et al. 2024

Polymers

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This study presents an analysis of films which consist of two layers; one layer is PVDF as the matrix, along with fillers BaTiO3 (BT), and the second is one bacterial nanocellulose (BNC) filled with Fe3O4. The mass fraction of BT in PVDF was 5%, and the samples were differentiated based on the duration of the mechanical activation of BT. This innovative PVDF laminate polymer with environmentally friendly fillers aligns with the concept of circular usage, resulting in a reduction in plastic content and potential improvement of the piezoelectric properties of the entire composite. This work presents new, multifunctional “green” packaging materials that potentially could be a good alternative to specific popular materials used for this purpose. The synthesis of the films was carried out using the hot press method. Tensile tests, water vapor permeability examination, and structural analyses using SEM-EDS and FTIR have been conducted. The sample PVDF/BT20/BNC/Fe3O4 exhibited the best barrier properties (impermeability to water vapor), while the highest tensile strength and toughness were exhibited by the PVDF/BT5/BNC/Fe3O4 sample.

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“…A fundição com solvente é uma técnica tradicional para formação de filme através da evaporação do solvente, responsável pelo aumento da concentração de sólidos e o surgimento de interações intermoleculares de longo alcance (WANG et al, 2020). Neste procedimento, primeiramente ocorre a solubilização dos reagentes formadores dos filmes, que são então depositados em substratos planos e secos sob condições brandas (SALEVIĆ-JELIĆ et al, 2023). O solvente utilizado durante este processo necessita ser quimicamente estável e de alto ponto de ebulição, pois sua rápida evaporação pode afetar as propriedades da membrana (superfície e microestrutura) (LI et al, 2012).…”

Section: Propriedades Dos Scaffoldsunclassified

Desenvolvimento de >i<scaffolds>/i< de quitosana/gelatina/xerogel de tanino-glutaraldeído para aplicação em engenharia de tecidos

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Biodegradable and active zein-gelatin-based electrospun mats and solvent-cast films incorporating sage extract: Formulation and comparative characterization

Cited by 12 publications

References 53 publications

The Application of Protein Concentrate Obtained from Green Leaf Biomass in Structuring Nanofibers for Delivery of Vitamin B12

The Application of Protein Concentrate Obtained from Green Leaf Biomass in Structuring Nanofibers for Delivery of Vitamin B12

Structural, Mechanical, and Barrier Properties of the Polyvinylidene Fluoride-Bacterial Nanocellulose-Based Hybrid Composite

Desenvolvimento de >i<scaffolds>/i< de quitosana/gelatina/xerogel de tanino-glutaraldeído para aplicação em engenharia de tecidos

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