Antimicrobial activity of geranium (Pelargonium graveolens) essential oil and its encapsulation in carioca bean starch ultrafine fibers by electrospinning.

Autor: Santos FND; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, Brazil. Electronic address: felipe22.s@hotmail.com., Fonseca LM; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, Brazil., Jansen-Alves C; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, Brazil., Crizel RL; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, Brazil., Pires JB; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, Brazil., Kroning IS; Microbiology Laboratory (LabMicro), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, Brazil., de Souza JF; Laboratory of Technology and Development of Composites and Polymeric Materials (LaCoPol), Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil., Fajardo AR; Laboratory of Technology and Development of Composites and Polymeric Materials (LaCoPol), Federal University of Pelotas, 96010-900 Pelotas, RS, Brazil., Lopes GV; Microbiology Laboratory (LabMicro), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, Brazil., Dias ARG; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, Brazil., Zavareze EDR; Laboratory of Biopolymers and Nanotechnology in Food (BioNano), Graduate Program in Food Science and Technology, Department of Agroindustrial Science and Technology, Federal University of Pelotas, 96010-900 Pelotas, Brazil.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Apr; Vol. 265 (Pt 1), pp. 130953. Date of Electronic Publication: 2024 Mar 16.
DOI: 10.1016/j.ijbiomac.2024.130953
Abstrakt: Geranium (Pelargonium graveolens) is known for being an aromatic plant rich in bioactive compounds with antibacterial properties. In this study, geranium essential oil (GEO) was extracted and encapsulated in ultrafine bean starch fibers produced by electrospinning as an antibacterial agent. GEO revealed a composition rich in volatile compounds, including citronellol, cis-geraniol, β-linalool, citronellyl formate, and linalool formate. In its free form, GEO exhibited high antibacterial activity against pathogenic bacteria strains (L. monocytogenes, S. aureus, and E. coli). The bean starch fibers, produced with and without the addition of GEO, were uniform and continuous, with an average diameter ranging from 249 to 373 nm. Confocal analysis indicated a uniform distribution of GEO in the fibers, with a loading capacity of 54.0 %, 42.9 %, and 36.5 % for 20 %, 30 %, and 40 % GEO concentrations, respectively. Remarkably, fibers containing 40 % GEO showed a significant reduction in tested bacteria (L. monocytogenes, S. aureus, and E. coli), suggesting promising applications in preventing losses and extending the shelf life of food through active packaging.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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