Effects of pectin polydispersity on zein/pectin composite nanoparticles (ZAPs) as high internal-phase Pickering emulsion stabilizers.
High internal-phase Pickering emulsion
Microstructure
Rheological property
Stimulated emission depletion (STED) nanoscopy
Zein/pectin composite nanoparticles
Journal
Carbohydrate polymers
ISSN: 1879-1344
Titre abrégé: Carbohydr Polym
Pays: England
ID NLM: 8307156
Informations de publication
Date de publication:
01 Sep 2019
01 Sep 2019
Historique:
received:
12
02
2019
revised:
06
05
2019
accepted:
07
05
2019
entrez:
2
6
2019
pubmed:
4
6
2019
medline:
4
6
2019
Statut:
ppublish
Résumé
In the present study, the properties of two apple sourced-pectin (AP-1 and AP-2) were comparative studied, and their influence on the formation of high internal-phase Pickering emulsions (HIPPEs) was investigated. Results showed that AP-2 has lower polydispersity index (PDI = 2.51) than AP-1. Zein/AP-2 complex nanoparticles (ZAPs-2) was able to stabilize 80% oil-phase to form HIPPEs, while ZAPs-1 failed to remain stable at same oil fraction. After correlating GPC (Gel Permeation Chromatography) results of pectins with their emulsion behavior, pectin PDI was found to play an important role in HIPPEs formation. Storage experiments and rheological properties analysis showed that HIPPEs exerted excellent stability and plasticity. Besides, super-resolution microscopy (including cryo-SEM and STED nanoscopy) depicted an intuitive interface structure of HIPPEs. These findings may contribute some basis to manipulating emulsion performance by adjusting pectin properties, as well as to further understanding the behavior of ZAPs at O/W interface.
Identifiants
pubmed: 31151548
pii: S0144-8617(19)30530-2
doi: 10.1016/j.carbpol.2019.05.025
pii:
doi:
Types de publication
Journal Article
Langues
eng
Pagination
77-86Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.