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dc.contributor.author
Faria, Adelia F.
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Mignone, Ricardo Andres
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Montenegro, Mariana Angélica
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Mercadante, Adriana Z.
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Borsarelli, Claudio Darío
dc.date.available
2019-06-04T20:46:45Z
dc.date.issued
2010-07
dc.identifier.citation
Faria, Adelia F.; Mignone, Ricardo Andres; Montenegro, Mariana Angélica; Mercadante, Adriana Z.; Borsarelli, Claudio Darío; Characterization and singlet oxygen quenching capacity of spray-dried microcapsules of edible biopolymers containing antioxidant molecules; American Chemical Society; Journal of Agricultural and Food Chemistry; 58; 13; 7-2010; 8004-8011
dc.identifier.issn
0021-8561
dc.identifier.uri
http://hdl.handle.net/11336/77615
dc.description.abstract
Microcapsules of gum arabic or maltodextrin 20DE containing antioxidant molecules (AOx), for example, carotenoids and tocopherol derivatives, were prepared by the spray-drying technique. The properties of these microcapsules were evaluated by several techniques, such as dynamic light scattering, scanning electronic microscopy, and steady-state and time-resolved fluorescence spectroscopy of microencapsulated pyrene. The quenching of photochemically generated singlet molecular oxygen (1O2) by the AOx in homogeneous solvents as well as in microcapsule solutions was evaluated using time-resolved phosphorescence detection of 1O2. The quenching rate constant of the process, KQ AOx, was strongly dependent on the type of the AOx. These results are explained by compartmentalization effects of the AOx in the core of the microcapsules and the accessibility of 1O2. The contribution of the biopolymer as quencher of 1O2 was also investigated. The present results can be applied to the design of edible antioxidant microcapsules within the food and cosmetic industries. © 2010 American Chemical Society.
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application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
dc.rights
info:eu-repo/semantics/openAccess
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Antioxidant Activity
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Carotenoids
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Microencapsulation
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Pyrene Fluorescence
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Singlet Oxygen
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Spray Drying
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Tocopherols
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Otras Ciencias Químicas
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Ciencias Químicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Characterization and singlet oxygen quenching capacity of spray-dried microcapsules of edible biopolymers containing antioxidant molecules
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-06-03T14:29:50Z
dc.journal.volume
58
dc.journal.number
13
dc.journal.pagination
8004-8011
dc.journal.pais
Estados Unidos
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Washington
dc.description.fil
Fil: Faria, Adelia F.. Universidade Estadual de Campinas; Brasil
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Fil: Mignone, Ricardo Andres. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
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Fil: Montenegro, Mariana Angélica. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Tecnologica Nacional. Facultad Regional Villa Maria; Argentina
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Fil: Mercadante, Adriana Z.. Universidade Estadual de Campinas; Brasil
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Fil: Borsarelli, Claudio Darío. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto de Química del Noroeste. Universidad Nacional de Tucumán. Facultad de Bioquímica, Química y Farmacia. Instituto de Química del Noroeste; Argentina
dc.journal.title
Journal of Agricultural and Food Chemistry
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/jf100925j
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info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1021/jf100925j
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