Structures of octenylsuccinylated starches: Effects on emulsions containing β-Carotene

Sweedman, Michael C., Hasjim, Jovin, Schafer, Christian and Gilbert, Robert G. (2014) Structures of octenylsuccinylated starches: Effects on emulsions containing β-Carotene. Carbohydrate Polymers, 112 85-93. doi:10.1016/j.carbpol.2014.05.067

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Author Sweedman, Michael C.
Hasjim, Jovin
Schafer, Christian
Gilbert, Robert G.
Title Structures of octenylsuccinylated starches: Effects on emulsions containing β-Carotene
Journal name Carbohydrate Polymers   Check publisher's open access policy
ISSN 0144-8617
Publication date 2014-11-04
Year available 2014
Sub-type Article (original research)
DOI 10.1016/j.carbpol.2014.05.067
Open Access Status Not yet assessed
Volume 112
Start page 85
End page 93
Total pages 9
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Language eng
Subject 1605 Organic Chemistry
2505 Materials Chemistry
2507 Polymers and Plastics
2700 Medicine
Abstract Starches with different amylopectin contents and different molecular sizes prepared using acid hydrolysis were hydrophobically modified using octenylsuccinic anhydride (OSA). The OSA-modified starches were used as surfactants to stabilize emulsions of β-Carotene and canola oil dispersed in water. The objective of this study is to investigate the relationship between starch molecular structure and the chemical stability of the emulsified β-Carotene, as well as the colloidal stability of emulsion droplets during storage. The oil droplet size in emulsions was smaller when starch had (a) lower hydrodynamic volume (Vh) and (b) higher amylopectin content. The oxidative stability of β-Carotene was similar across samples, with higher results at increased amylopectin content but higher Vh. Steric hindrance to coalescence provided by adsorbed OSA-modified starches appears to be improved by more rigid molecules of higher degree of branching.
Keyword Droplet size
Octenylsuccinic anhydride
β Carotene
Q-Index Code C1
Q-Index Status Confirmed Code
Grant ID LP100100225
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Queensland Alliance for Agriculture and Food Innovation
Official 2015 Collection
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Citation counts: TR Web of Science Citation Count  Cited 6 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 7 times in Scopus Article | Citations
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