Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH

Autores
Camino, Nerina Andrea; Pilosof, Ana Maria Renata
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The emulsifying behavior of four different commercial types of hydroxypropylmethylcellulose (HPMC) was studied and correlated with the properties of the interfacial films. Emulsions resulted multimodal when made by a high speed blender (Ultraturrax, UT), with droplets higher than 10 μm. The average diameters D32 resulted higher for UT emulsions stabilized by the higher molecular weight HPMC (E4M and E50LV). However, E4M emulsions presented the highest variation in D32 with pH. Emulsions made by high intensity ultrasound, presented a monomodal population with the majority of the droplets around 0.3 μm. In all cases, the droplets sizes were smaller than 0.5 μm. As for UT emulsions, higher average diameters (D32 and D43) were obtained for all HPMCs at pH3.Emulsions at pH3 destabilized quicker than emulsions at pH6, mainly when made by Ultraturrax. At pH3 hydrophobic interactions are impeded thus elastic films are not formed upon emulsification, resulting in droplets with higher initial diameters than at pH6.
Fil: Camino, Nerina Andrea. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pilosof, Ana Maria Renata. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Emulsions
High Intensity Ultrasound
Hydroxypropylmethylcellulose
Interface
Stability
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:11336/68306
Acceder
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spelling Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pHCamino, Nerina AndreaPilosof, Ana Maria RenataEmulsionsHigh Intensity UltrasoundHydroxypropylmethylcelluloseInterfaceStabilityhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The emulsifying behavior of four different commercial types of hydroxypropylmethylcellulose (HPMC) was studied and correlated with the properties of the interfacial films. Emulsions resulted multimodal when made by a high speed blender (Ultraturrax, UT), with droplets higher than 10 μm. The average diameters D32 resulted higher for UT emulsions stabilized by the higher molecular weight HPMC (E4M and E50LV). However, E4M emulsions presented the highest variation in D32 with pH. Emulsions made by high intensity ultrasound, presented a monomodal population with the majority of the droplets around 0.3 μm. In all cases, the droplets sizes were smaller than 0.5 μm. As for UT emulsions, higher average diameters (D32 and D43) were obtained for all HPMCs at pH3.Emulsions at pH3 destabilized quicker than emulsions at pH6, mainly when made by Ultraturrax. At pH3 hydrophobic interactions are impeded thus elastic films are not formed upon emulsification, resulting in droplets with higher initial diameters than at pH6.Fil: Camino, Nerina Andrea. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pilosof, Ana Maria Renata. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier2011-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/68306Camino, Nerina Andrea; Pilosof, Ana Maria Renata; Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH; Elsevier; Food Hydrocolloids; 25; 5; 7-2011; 1051-10620268-005XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.foodhyd.2010.09.026info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0268005X10002432info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:30:47Zoai:ri.conicet.gov.ar:11336/68306instacron: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 10:30:48.102CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH
title Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH
spellingShingle Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH
Camino, Nerina Andrea
Emulsions
High Intensity Ultrasound
Hydroxypropylmethylcellulose
Interface
Stability
title_short Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH
title_full Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH
title_fullStr Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH
title_full_unstemmed Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH
title_sort Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH
dc.creator.none.fl_str_mv Camino, Nerina Andrea
Pilosof, Ana Maria Renata
author Camino, Nerina Andrea
author_facet Camino, Nerina Andrea
Pilosof, Ana Maria Renata
author_role author
author2 Pilosof, Ana Maria Renata
author2_role author
dc.subject.none.fl_str_mv Emulsions
High Intensity Ultrasound
Hydroxypropylmethylcellulose
Interface
Stability
topic Emulsions
High Intensity Ultrasound
Hydroxypropylmethylcellulose
Interface
Stability
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The emulsifying behavior of four different commercial types of hydroxypropylmethylcellulose (HPMC) was studied and correlated with the properties of the interfacial films. Emulsions resulted multimodal when made by a high speed blender (Ultraturrax, UT), with droplets higher than 10 μm. The average diameters D32 resulted higher for UT emulsions stabilized by the higher molecular weight HPMC (E4M and E50LV). However, E4M emulsions presented the highest variation in D32 with pH. Emulsions made by high intensity ultrasound, presented a monomodal population with the majority of the droplets around 0.3 μm. In all cases, the droplets sizes were smaller than 0.5 μm. As for UT emulsions, higher average diameters (D32 and D43) were obtained for all HPMCs at pH3.Emulsions at pH3 destabilized quicker than emulsions at pH6, mainly when made by Ultraturrax. At pH3 hydrophobic interactions are impeded thus elastic films are not formed upon emulsification, resulting in droplets with higher initial diameters than at pH6.
Fil: Camino, Nerina Andrea. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pilosof, Ana Maria Renata. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Industrias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description The emulsifying behavior of four different commercial types of hydroxypropylmethylcellulose (HPMC) was studied and correlated with the properties of the interfacial films. Emulsions resulted multimodal when made by a high speed blender (Ultraturrax, UT), with droplets higher than 10 μm. The average diameters D32 resulted higher for UT emulsions stabilized by the higher molecular weight HPMC (E4M and E50LV). However, E4M emulsions presented the highest variation in D32 with pH. Emulsions made by high intensity ultrasound, presented a monomodal population with the majority of the droplets around 0.3 μm. In all cases, the droplets sizes were smaller than 0.5 μm. As for UT emulsions, higher average diameters (D32 and D43) were obtained for all HPMCs at pH3.Emulsions at pH3 destabilized quicker than emulsions at pH6, mainly when made by Ultraturrax. At pH3 hydrophobic interactions are impeded thus elastic films are not formed upon emulsification, resulting in droplets with higher initial diameters than at pH6.
publishDate 2011
dc.date.none.fl_str_mv 2011-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/68306
Camino, Nerina Andrea; Pilosof, Ana Maria Renata; Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH; Elsevier; Food Hydrocolloids; 25; 5; 7-2011; 1051-1062
0268-005X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/68306
identifier_str_mv Camino, Nerina Andrea; Pilosof, Ana Maria Renata; Hydroxypropylmethylcellulose at the oil-water interface. Part II. Submicron-emulsions as affected by pH; Elsevier; Food Hydrocolloids; 25; 5; 7-2011; 1051-1062
0268-005X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.foodhyd.2010.09.026
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0268005X10002432
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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 application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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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score 13.070432

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