Design of an antioxidant powder additive based on carvacrol encapsulated into a multilayer chitosan-alginate-maltodextrin emulsion

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dc.contributor.authorCardero, Yaniel
dc.contributor.authorAguirre-Calvo, Tatiana Rocio
dc.contributor.authorValenzuela, Loreto M.
dc.contributor.authorMatiacevich, Silvia
dc.contributor.authorSantagapita, Patricia Roman
dc.date.accessioned2025-01-20T16:13:52Z
dc.date.available2025-01-20T16:13:52Z
dc.date.issued2024
dc.description.abstractCarvacrol has demonstrated antioxidant activity; however, its high volatility and low water solubility limit its direct application in food matrices. Then, an effective encapsulation system is required to protect it. This study aimed to design and characterize a carvacrol-based additive encapsulated in a spray-dried multilayer emulsion based on chitosan/sodium alginate/maltodextrin. Spray-drying temperature of 120 degrees C and 3 %(w/w) maltodextrin content maximized both encapsulation efficiency (similar to 97 %) and loading capacity (similar to 53 %). The powder's antioxidant properties were evaluated in two food simulant media: water (SiW) and water-ethanol (SiD). The highest antioxidant activity was observed in SiW for both ABTS(center dot+) (8.2 +/- 0.3mg(EAG)/g) and FRAP (4.1 +/- 0.2mg(EAG)/g) methods because of the reduced release of carvacrol in SiD vs. SiW, as supported by micro- and macrostructural observations by SAXS and microscopy, respectively. An increase from 143 to 157 degrees C attributable to carvacrol protection and T-g = 44.4 degrees C (> ambient) were obtained by TGA and DSC, respectively. FT-IR confirmed intermolecular interactions (e.g. -COO- and -NH3+) as well as H-bonding formation. High water solubility (81 +/- 3 %), low hygroscopicity (8.8 +/- 0.2 %(w/w), poor flowability (CI:45 +/- 4), and high cohesiveness (HR:1.8 +/- 0.1) between particles were achieved, leading to a powdered antioxidant additive with high potential for applications which required avoiding/reducing oxidation on hydrophilic and hydrophobic food products.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.ijbiomac.2024.133039
dc.identifier.eissn1879-0003
dc.identifier.issn0141-8130
dc.identifier.urihttps://doi.org/10.1016/j.ijbiomac.2024.133039
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90410
dc.identifier.wosidWOS:001261521100001
dc.language.isoen
dc.revistaInternational journal of biological macromolecules
dc.rightsacceso restringido
dc.subjectCarvacrol
dc.subjectSpray drying
dc.subjectEncapsulation
dc.subjectBiopolymers
dc.subjectPowder characterization
dc.subjectAntioxidants
dc.titleDesign of an antioxidant powder additive based on carvacrol encapsulated into a multilayer chitosan-alginate-maltodextrin emulsion
dc.typeartículo
dc.volumen274
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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