Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts

Autores
Traffano Schiffo, Maria Victoria; Zazzali, Ignacio; Aguirre Calvo, Tatiana Rocio; Avanza, María Victoria; Perullini, Ana Mercedes; Santagapita, Patricio Roman
Año de publicación
2021
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The great potential of Ca(II)-alginate beads in preserving biomolecules and their use as a carrier of bioactive compounds has been demonstrated. However, several food applications require long-term storage and thus, numerous preservation techniques such as drying have been applied. Still, research of stability of bioactive compounds in these treatments focus on the morphology of the beads and the microstructure of the network but do not consider the microstructural changes that occur during the drying process.Ca(II)-alginate beads were prepared to preserve phenolic compounds extracted from cowpea (Vigna unguiculata) by-products by using high-intensity ultrasound (VCX500, Sonics, US). Also, the influence of the addition of cowpea isolated proteins as an excipient of the beads has been analysed. The microstructural changes of the network during air-drying treatment have been studied by SAXS at the LNLS SAXS1 beamline in Campinas, Brazil at λ = 0.1488 nm. The wave vector (q) was selected in the range 0.142 nm−1 < q < 5.035 nm−1. All the Ca(II)-alginate beads analysed showed isotropic scattering and were modelled as a fractal system composed of rod-like structures.Significant differences were observed between the alginate beads containing the whole extract with respect to those containing cowpea isolate protein, revealing that cowpea protein is embedded within the rods, obtaining thicker but less dense rods disposed in a more disordered structure. These differences remained constant until 60 min of the air-drying treatment at 25 °C (even with moisture losses up to 30%). From this time, the microstructure of the dried beads at the final stage if drying (xw = 0.5 kgw/kgT) showed the loss of the typical scattering of rod-like structures and even displayed new signals at high q in the presence of cowpea proteins.
Fil: Traffano Schiffo, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; Argentina
Fil: Zazzali, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
Fil: Aguirre Calvo, Tatiana Rocio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
Fil: Avanza, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; Argentina
Fil: Perullini, Ana Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Santagapita, Patricio Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
31st RAU Annual Users Meeting
Campinhas
Brasil
Brazilian Center for Research in Energy and Materials
Ministry for Science, Technology and Innovations
Materia
MICROSTRUCTURE
Ca(ii)-ALGINATE
COWPEA BYPRODUCTS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/172209
Acceder
id CONICETDig_cb0558c28e5dd0eb740ebe7ba6fc6ab8
oai_identifier_str oai:ri.conicet.gov.ar:11336/172209
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extractsTraffano Schiffo, Maria VictoriaZazzali, IgnacioAguirre Calvo, Tatiana RocioAvanza, María VictoriaPerullini, Ana MercedesSantagapita, Patricio RomanMICROSTRUCTURECa(ii)-ALGINATECOWPEA BYPRODUCTShttps://purl.org/becyt/ford/2.11https://purl.org/becyt/ford/2The great potential of Ca(II)-alginate beads in preserving biomolecules and their use as a carrier of bioactive compounds has been demonstrated. However, several food applications require long-term storage and thus, numerous preservation techniques such as drying have been applied. Still, research of stability of bioactive compounds in these treatments focus on the morphology of the beads and the microstructure of the network but do not consider the microstructural changes that occur during the drying process.Ca(II)-alginate beads were prepared to preserve phenolic compounds extracted from cowpea (Vigna unguiculata) by-products by using high-intensity ultrasound (VCX500, Sonics, US). Also, the influence of the addition of cowpea isolated proteins as an excipient of the beads has been analysed. The microstructural changes of the network during air-drying treatment have been studied by SAXS at the LNLS SAXS1 beamline in Campinas, Brazil at λ = 0.1488 nm. The wave vector (q) was selected in the range 0.142 nm−1 < q < 5.035 nm−1. All the Ca(II)-alginate beads analysed showed isotropic scattering and were modelled as a fractal system composed of rod-like structures.Significant differences were observed between the alginate beads containing the whole extract with respect to those containing cowpea isolate protein, revealing that cowpea protein is embedded within the rods, obtaining thicker but less dense rods disposed in a more disordered structure. These differences remained constant until 60 min of the air-drying treatment at 25 °C (even with moisture losses up to 30%). From this time, the microstructure of the dried beads at the final stage if drying (xw = 0.5 kgw/kgT) showed the loss of the typical scattering of rod-like structures and even displayed new signals at high q in the presence of cowpea proteins.Fil: Traffano Schiffo, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; ArgentinaFil: Zazzali, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; ArgentinaFil: Aguirre Calvo, Tatiana Rocio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; ArgentinaFil: Avanza, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; ArgentinaFil: Perullini, Ana Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Santagapita, Patricio Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina31st RAU Annual Users MeetingCampinhasBrasilBrazilian Center for Research in Energy and MaterialsMinistry for Science, Technology and InnovationsMinistry for Science, Technology and Innovations2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciatext/plainapplication/pdfhttp://hdl.handle.net/11336/172209Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts; 31st RAU Annual Users Meeting; Campinhas; Brasil; 2021; 52-52CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pages.cnpem.br/rau/wp-content/uploads/sites/8/2021/11/31RAU_book_of_abstracts_4.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:41:53Zoai:ri.conicet.gov.ar:11336/172209instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:41:53.692CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts
title Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts
spellingShingle Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts
Traffano Schiffo, Maria Victoria
MICROSTRUCTURE
Ca(ii)-ALGINATE
COWPEA BYPRODUCTS
title_short Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts
title_full Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts
title_fullStr Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts
title_full_unstemmed Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts
title_sort Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts
dc.creator.none.fl_str_mv Traffano Schiffo, Maria Victoria
Zazzali, Ignacio
Aguirre Calvo, Tatiana Rocio
Avanza, María Victoria
Perullini, Ana Mercedes
Santagapita, Patricio Roman
author Traffano Schiffo, Maria Victoria
author_facet Traffano Schiffo, Maria Victoria
Zazzali, Ignacio
Aguirre Calvo, Tatiana Rocio
Avanza, María Victoria
Perullini, Ana Mercedes
Santagapita, Patricio Roman
author_role author
author2 Zazzali, Ignacio
Aguirre Calvo, Tatiana Rocio
Avanza, María Victoria
Perullini, Ana Mercedes
Santagapita, Patricio Roman
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv MICROSTRUCTURE
Ca(ii)-ALGINATE
COWPEA BYPRODUCTS
topic MICROSTRUCTURE
Ca(ii)-ALGINATE
COWPEA BYPRODUCTS
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.11
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The great potential of Ca(II)-alginate beads in preserving biomolecules and their use as a carrier of bioactive compounds has been demonstrated. However, several food applications require long-term storage and thus, numerous preservation techniques such as drying have been applied. Still, research of stability of bioactive compounds in these treatments focus on the morphology of the beads and the microstructure of the network but do not consider the microstructural changes that occur during the drying process.Ca(II)-alginate beads were prepared to preserve phenolic compounds extracted from cowpea (Vigna unguiculata) by-products by using high-intensity ultrasound (VCX500, Sonics, US). Also, the influence of the addition of cowpea isolated proteins as an excipient of the beads has been analysed. The microstructural changes of the network during air-drying treatment have been studied by SAXS at the LNLS SAXS1 beamline in Campinas, Brazil at λ = 0.1488 nm. The wave vector (q) was selected in the range 0.142 nm−1 < q < 5.035 nm−1. All the Ca(II)-alginate beads analysed showed isotropic scattering and were modelled as a fractal system composed of rod-like structures.Significant differences were observed between the alginate beads containing the whole extract with respect to those containing cowpea isolate protein, revealing that cowpea protein is embedded within the rods, obtaining thicker but less dense rods disposed in a more disordered structure. These differences remained constant until 60 min of the air-drying treatment at 25 °C (even with moisture losses up to 30%). From this time, the microstructure of the dried beads at the final stage if drying (xw = 0.5 kgw/kgT) showed the loss of the typical scattering of rod-like structures and even displayed new signals at high q in the presence of cowpea proteins.
Fil: Traffano Schiffo, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; Argentina
Fil: Zazzali, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
Fil: Aguirre Calvo, Tatiana Rocio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
Fil: Avanza, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Química Básica y Aplicada del Nordeste Argentino. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas Naturales y Agrimensura. Instituto de Química Básica y Aplicada del Nordeste Argentino; Argentina
Fil: Perullini, Ana Mercedes. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Santagapita, Patricio Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones en Hidratos de Carbono. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones en Hidratos de Carbono; Argentina
31st RAU Annual Users Meeting
Campinhas
Brasil
Brazilian Center for Research in Energy and Materials
Ministry for Science, Technology and Innovations
description The great potential of Ca(II)-alginate beads in preserving biomolecules and their use as a carrier of bioactive compounds has been demonstrated. However, several food applications require long-term storage and thus, numerous preservation techniques such as drying have been applied. Still, research of stability of bioactive compounds in these treatments focus on the morphology of the beads and the microstructure of the network but do not consider the microstructural changes that occur during the drying process.Ca(II)-alginate beads were prepared to preserve phenolic compounds extracted from cowpea (Vigna unguiculata) by-products by using high-intensity ultrasound (VCX500, Sonics, US). Also, the influence of the addition of cowpea isolated proteins as an excipient of the beads has been analysed. The microstructural changes of the network during air-drying treatment have been studied by SAXS at the LNLS SAXS1 beamline in Campinas, Brazil at λ = 0.1488 nm. The wave vector (q) was selected in the range 0.142 nm−1 < q < 5.035 nm−1. All the Ca(II)-alginate beads analysed showed isotropic scattering and were modelled as a fractal system composed of rod-like structures.Significant differences were observed between the alginate beads containing the whole extract with respect to those containing cowpea isolate protein, revealing that cowpea protein is embedded within the rods, obtaining thicker but less dense rods disposed in a more disordered structure. These differences remained constant until 60 min of the air-drying treatment at 25 °C (even with moisture losses up to 30%). From this time, the microstructure of the dried beads at the final stage if drying (xw = 0.5 kgw/kgT) showed the loss of the typical scattering of rod-like structures and even displayed new signals at high q in the presence of cowpea proteins.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/172209
Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts; 31st RAU Annual Users Meeting; Campinhas; Brasil; 2021; 52-52
CONICET Digital
CONICET
url http://hdl.handle.net/11336/172209
identifier_str_mv Microstructural study of air-drying kinetics of Ca(II)-alginate beads to preserve cowpea extracts; 31st RAU Annual Users Meeting; Campinhas; Brasil; 2021; 52-52
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://pages.cnpem.br/rau/wp-content/uploads/sites/8/2021/11/31RAU_book_of_abstracts_4.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv text/plain
application/pdf
dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv Ministry for Science, Technology and Innovations
publisher.none.fl_str_mv Ministry for Science, Technology and Innovations
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
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instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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