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Characterization and antimicrobial activity of microencapsulated citral with dextrin by spray drying

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dc.contributor.author Yoplac, Ives es_PE
dc.contributor.author Vargas, Luis es_PE
dc.contributor.author Robert, Paz es_PE
dc.contributor.author Hidalgo, Alyssa es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2021
dc.description This work was supported by Fondo Nacional de Desarrollo Científico, Tecnologico y de Innovación Tecnológica (PE) [179-2015-FONDECYT].
dc.description.abstract Aim of this work was to evaluate the antimicrobial activity and physical characteristics of citral microencapsulated with dextrin (Dx) by spray drying. The encapsulation was optimized using response surface methodology (RSM), maximizing yield and efficiency, considering as independent variables the citral:Dx ratio (1:5 and 1:20) and the inlet air temperature (120 and 200 °C). Yield and efficiency under optimal conditions were 71.9% and 99.9%, respectively. Antimicrobial activity against Escherichia coli, Salmonella enterica, Staphylococcus aureus and Bacillus cereus of the citral microparticles obtained under optimal conditions and of free citral was evaluated using the disk diffusion methodology. Both compounds showed a broad spectrum inhibitory effect, being Escherichia coli and Bacillus cereus the most sensitive microorganisms. The inhibition ratio varied between 55 and 75%, and the antibacterial activity was maintained after microencapsulation. The minimum inhibitory concentrations of free citral were above 0.8 mg/mL. The optimal citral microparticles showed acceptable physicochemical characteristics and broad-spectrum antimicrobial activity. Polymer and emulsifier used in microencapsulation protected the functional activity of citral, thus suggesting that these microparticles could be used in the design of antimicrobial food systems to extend the shelf life of perishable foods. © 2021
dc.description.sponsorship Fondo Nacional de Desarrollo Científico y Tecnológico - Fondecyt
dc.identifier.doi https://doi.org/10.1016/j.heliyon.2021.e06737
dc.identifier.scopus 2-s2.0-85103698079
dc.identifier.uri https://hdl.handle.net/20.500.12390/2346
dc.language.iso eng
dc.publisher Elsevier Ltd
dc.relation.ispartof Heliyon
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Spray drying
dc.subject Encapsulation es_PE
dc.subject Gram-negative es_PE
dc.subject Gram-positive es_PE
dc.subject Morphology es_PE
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#3.04.02
dc.title Characterization and antimicrobial activity of microencapsulated citral with dextrin by spray drying
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
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oairecerif.author.affiliation #PLACEHOLDER_PARENT_METADATA_VALUE#
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