Emulsification and adsorption properties of hydrophobically modified potato and barley starch
(2007) In Journal of Agricultural and Food Chemistry 55(4). p.1469-1474- Abstract
- In this paper, we studied the adsorption at emulsion droplets of potato starch, which was hydrophobically modified with octenyl succinate anhydride (OSA), a surface active macromolecule containing ultrahigh molar mass components. The results show that the substance works as an efficient emulsifier and that it can in some cases generate high surface loads (10 mg/m(2)). The results can be explained as an interplay between kinetic factors during the formation of the emulsion and the physical-chemical properties of the hydrophobically modified starch, such as the degree of substitution, molar mass, and radius. In turbulent flow fields, such as in a high-pressure homogenizer, the mass transport to the interface favors the adsorption of larger... (More)
- In this paper, we studied the adsorption at emulsion droplets of potato starch, which was hydrophobically modified with octenyl succinate anhydride (OSA), a surface active macromolecule containing ultrahigh molar mass components. The results show that the substance works as an efficient emulsifier and that it can in some cases generate high surface loads (10 mg/m(2)). The results can be explained as an interplay between kinetic factors during the formation of the emulsion and the physical-chemical properties of the hydrophobically modified starch, such as the degree of substitution, molar mass, and radius. In turbulent flow fields, such as in a high-pressure homogenizer, the mass transport to the interface favors the adsorption of larger molecules as they are transported more rapidly to the interface. The larger molecules are also likely to have a higher substituent density and adsorption energy than smaller ones. This in turn is likely to give high surface loads and strengthen the effect of kinetic adsorption factors, as the large molecules will be overrepresented at the surface. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/584732
- author
- Nilsson, Lars LU and Bergenståhl, Björn LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Emulsions, Adsorption, OSA starch
- in
- Journal of Agricultural and Food Chemistry
- volume
- 55
- issue
- 4
- pages
- 1469 - 1474
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- wos:000244206700057
- scopus:34249858659
- ISSN
- 0021-8561
- DOI
- 10.1021/jf062087z
- project
- CAP
- language
- English
- LU publication?
- yes
- id
- a6949976-4230-4fdb-8195-d3379b109817 (old id 584732)
- date added to LUP
- 2016-04-01 12:21:33
- date last changed
- 2023-11-11 22:19:56
@article{a6949976-4230-4fdb-8195-d3379b109817, abstract = {{In this paper, we studied the adsorption at emulsion droplets of potato starch, which was hydrophobically modified with octenyl succinate anhydride (OSA), a surface active macromolecule containing ultrahigh molar mass components. The results show that the substance works as an efficient emulsifier and that it can in some cases generate high surface loads (10 mg/m(2)). The results can be explained as an interplay between kinetic factors during the formation of the emulsion and the physical-chemical properties of the hydrophobically modified starch, such as the degree of substitution, molar mass, and radius. In turbulent flow fields, such as in a high-pressure homogenizer, the mass transport to the interface favors the adsorption of larger molecules as they are transported more rapidly to the interface. The larger molecules are also likely to have a higher substituent density and adsorption energy than smaller ones. This in turn is likely to give high surface loads and strengthen the effect of kinetic adsorption factors, as the large molecules will be overrepresented at the surface.}}, author = {{Nilsson, Lars and Bergenståhl, Björn}}, issn = {{0021-8561}}, keywords = {{Emulsions; Adsorption; OSA starch}}, language = {{eng}}, number = {{4}}, pages = {{1469--1474}}, publisher = {{The American Chemical Society (ACS)}}, series = {{Journal of Agricultural and Food Chemistry}}, title = {{Emulsification and adsorption properties of hydrophobically modified potato and barley starch}}, url = {{http://dx.doi.org/10.1021/jf062087z}}, doi = {{10.1021/jf062087z}}, volume = {{55}}, year = {{2007}}, }