Microencapsulation via Spray-Drying of Geraniol-Loaded Emulsions Stabilized by Marine Exopolysaccharide for Enhanced Antimicrobial Activity
The current study investigates the formation of microencapsulated geraniol powder, with the exopolysaccharide EPS-K1B3 produced by <i>Halomonas caseinilytica</i> K1, as wall material, using spray-drying. Evaluation of the antimicrobial activity of the functional emulsions, prepared at ei...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Life |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-1729/13/10/1958 |
| _version_ | 1797573212078342144 |
|---|---|
| author | Ichrak Joulak Samia Azabou Emilie Dumas Filomena Freitas Hamadi Attia Adem Gharsallaoui |
| author_facet | Ichrak Joulak Samia Azabou Emilie Dumas Filomena Freitas Hamadi Attia Adem Gharsallaoui |
| author_sort | Ichrak Joulak |
| collection | DOAJ |
| description | The current study investigates the formation of microencapsulated geraniol powder, with the exopolysaccharide EPS-K1B3 produced by <i>Halomonas caseinilytica</i> K1, as wall material, using spray-drying. Evaluation of the antimicrobial activity of the functional emulsions, prepared at either pH 5 or pH 7, was carried out against Gram-positive (<i>Listeria innocua</i> (ATCC 33090)) and Gram-negative (<i>Escherichia coli</i> (DSM682)) bacterial strains. Results showed prolonged antimicrobial efficacy until 30 days of incubation for geraniol microcapsules compared to wet geraniol emulsions, which could confirm the ability of the spray-drying process to protect encapsulated geraniol for a longer period. The highest antimicrobial efficacy of geraniol microcapsules was observed against <i>L. innocua</i> at pH 5. Therefore, the influence of pH on the functional property of geraniol microcapsules could be highlighted beside the targeted bacterial strain. |
| first_indexed | 2024-03-10T21:06:41Z |
| format | Article |
| id | doaj.art-34cebf4722eb4b2da052ca057c96d3d9 |
| institution | Directory Open Access Journal |
| issn | 2075-1729 |
| language | English |
| last_indexed | 2024-03-10T21:06:41Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Life |
| spelling | doaj.art-34cebf4722eb4b2da052ca057c96d3d92023-11-19T17:05:21ZengMDPI AGLife2075-17292023-09-011310195810.3390/life13101958Microencapsulation via Spray-Drying of Geraniol-Loaded Emulsions Stabilized by Marine Exopolysaccharide for Enhanced Antimicrobial ActivityIchrak Joulak0Samia Azabou1Emilie Dumas2Filomena Freitas3Hamadi Attia4Adem Gharsallaoui5Laboratoire Analyse Valorisation et Sécurité des Aliments, Université de Sfax, ENIS, Sfax 3038, TunisiaLaboratoire Analyse Valorisation et Sécurité des Aliments, Université de Sfax, ENIS, Sfax 3038, TunisiaCNRS, LAGEPP UMR 5007, University of Lyon, Université Claude Bernard Lyon 1, 43 Bd 11 Novembre 1918, 69622 Villeurbanne, FranceAssociate Laboratory i4HB–Institute for Health and Bioeconomy, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, PortugalLaboratoire Analyse Valorisation et Sécurité des Aliments, Université de Sfax, ENIS, Sfax 3038, TunisiaCNRS, LAGEPP UMR 5007, University of Lyon, Université Claude Bernard Lyon 1, 43 Bd 11 Novembre 1918, 69622 Villeurbanne, FranceThe current study investigates the formation of microencapsulated geraniol powder, with the exopolysaccharide EPS-K1B3 produced by <i>Halomonas caseinilytica</i> K1, as wall material, using spray-drying. Evaluation of the antimicrobial activity of the functional emulsions, prepared at either pH 5 or pH 7, was carried out against Gram-positive (<i>Listeria innocua</i> (ATCC 33090)) and Gram-negative (<i>Escherichia coli</i> (DSM682)) bacterial strains. Results showed prolonged antimicrobial efficacy until 30 days of incubation for geraniol microcapsules compared to wet geraniol emulsions, which could confirm the ability of the spray-drying process to protect encapsulated geraniol for a longer period. The highest antimicrobial efficacy of geraniol microcapsules was observed against <i>L. innocua</i> at pH 5. Therefore, the influence of pH on the functional property of geraniol microcapsules could be highlighted beside the targeted bacterial strain.https://www.mdpi.com/2075-1729/13/10/1958exopolysaccharidegeranioloil/water emulsionspray-dryingmicroencapsulationantimicrobial activity |
| spellingShingle | Ichrak Joulak Samia Azabou Emilie Dumas Filomena Freitas Hamadi Attia Adem Gharsallaoui Microencapsulation via Spray-Drying of Geraniol-Loaded Emulsions Stabilized by Marine Exopolysaccharide for Enhanced Antimicrobial Activity Life exopolysaccharide geraniol oil/water emulsion spray-drying microencapsulation antimicrobial activity |
| title | Microencapsulation via Spray-Drying of Geraniol-Loaded Emulsions Stabilized by Marine Exopolysaccharide for Enhanced Antimicrobial Activity |
| title_full | Microencapsulation via Spray-Drying of Geraniol-Loaded Emulsions Stabilized by Marine Exopolysaccharide for Enhanced Antimicrobial Activity |
| title_fullStr | Microencapsulation via Spray-Drying of Geraniol-Loaded Emulsions Stabilized by Marine Exopolysaccharide for Enhanced Antimicrobial Activity |
| title_full_unstemmed | Microencapsulation via Spray-Drying of Geraniol-Loaded Emulsions Stabilized by Marine Exopolysaccharide for Enhanced Antimicrobial Activity |
| title_short | Microencapsulation via Spray-Drying of Geraniol-Loaded Emulsions Stabilized by Marine Exopolysaccharide for Enhanced Antimicrobial Activity |
| title_sort | microencapsulation via spray drying of geraniol loaded emulsions stabilized by marine exopolysaccharide for enhanced antimicrobial activity |
| topic | exopolysaccharide geraniol oil/water emulsion spray-drying microencapsulation antimicrobial activity |
| url | https://www.mdpi.com/2075-1729/13/10/1958 |
| work_keys_str_mv | AT ichrakjoulak microencapsulationviaspraydryingofgeraniolloadedemulsionsstabilizedbymarineexopolysaccharideforenhancedantimicrobialactivity AT samiaazabou microencapsulationviaspraydryingofgeraniolloadedemulsionsstabilizedbymarineexopolysaccharideforenhancedantimicrobialactivity AT emiliedumas microencapsulationviaspraydryingofgeraniolloadedemulsionsstabilizedbymarineexopolysaccharideforenhancedantimicrobialactivity AT filomenafreitas microencapsulationviaspraydryingofgeraniolloadedemulsionsstabilizedbymarineexopolysaccharideforenhancedantimicrobialactivity AT hamadiattia microencapsulationviaspraydryingofgeraniolloadedemulsionsstabilizedbymarineexopolysaccharideforenhancedantimicrobialactivity AT ademgharsallaoui microencapsulationviaspraydryingofgeraniolloadedemulsionsstabilizedbymarineexopolysaccharideforenhancedantimicrobialactivity |