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The Structuring of Sage (Salvia officinalis L.) Extract-Incorporating Edible Zein-Based Materials with Antioxidant and Antibacterial Functionality by Solvent Casting versus Electrospinning

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2022
The_Structuring_of_Sage_pub_2022.pdf (2.269Mb)
Authors
Salević, Ana
Stojanović, Dušica
Lević, Steva
Pantić, Milena
Ðordević, Verica
Pešić, Radojica
Bugarski, Branko
Pavlović, Vladimir
Uskoković, Petar
Nedović, Viktor
Article (Published version)
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Abstract
In this study, in order to develop zein-based, edible, functional food-contact materials in different forms incorporating sage extract (10, 20, and 30%), solvent casting and electrospinning were employed. The study aimed to assess the effects of the applied techniques and the extract’s incorporation on the materials’ properties. The solvent casting generated continuous and compact films, where the extract’s incorporation provided more homogenous surfaces. The electrospinning resulted in non-woven mats composed of ribbon-like fibers in the range of 1.275–1.829 µm, while the extract’s incorporation provided thinner and branched fibers. The results indicated the compatibility between the materials’ constituents, and efficient and homogenous extract incorporation within the zein matrices, with more probable interactions occurring during the solvent casting. All of the formulations had a high dry matter content, whereas the mats and the formulations incorporating the extract had higher solu...bility and swelling in water. The films and mats presented similar DPPH• and ABTS•+ radical scavenging abilities, while the influence on Staphylococcus aureus and Salmonella enterica subsp. enterica serovar Typhimurium bacteria, and the growth inhibition, were complex. The antioxidant and antibacterial activity of the materials were more potent after the extract’s incorporation. Overall, the results highlight the potential of the developed edible materials for use as food-contact materials with active/bioactive functionality.

Keywords:
Active edible packaging / Antimicrobial activity / Antioxidant activity / Electrospinning / Fiber mats / Films / Incorporation / Sage extract / Solvent casting / Zein
Source:
Foods, 2022, 11, 3, 390-
Publisher:
  • MDPI
Funding / projects:
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-200135)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200116 (University of Belgrade, Faculty of Agriculture) (RS-200116)
  • EUREKA program (E!11788, No 451-03-166/2019-09/3)

DOI: 10.3390/foods11030390

ISSN: 2304-8158

WoS: 000755341600001

Scopus: 2-s2.0-85123676382
[ Google Scholar ]
URI
http://aspace.agrif.bg.ac.rs/handle/123456789/6011
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  • Radovi istraživača / Researchers’ publications
Institution/Community
Poljoprivredni fakultet

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