H-1 NMR diffusometry study of water in casein dispersions and gels
(2002) In Journal of Agricultural and Food Chemistry 50(15). p.4295-4302- Abstract
- The self-diffusion coefficients of water in casein solutions and gels were measured using a pulsed-gradient spin-echo nuclear magnetic resonance technique (PGSE NMR). The dependence of the self-diffusion coefficient of water on the concentration and structure-of casein is reported. The results were analyzed using a cell model. It was found that the water self-diffusion coefficient is insensitive to the structure of the casein in solution or in a gelled state. The influence of casein concentration on the water self-diffusion coefficient could be explained by obstruction from the casein molecule. Assuming a simple model with two water regions, each characterized by a specific water concentration and value of the water diffusion coefficient,... (More)
- The self-diffusion coefficients of water in casein solutions and gels were measured using a pulsed-gradient spin-echo nuclear magnetic resonance technique (PGSE NMR). The dependence of the self-diffusion coefficient of water on the concentration and structure-of casein is reported. The results were analyzed using a cell model. It was found that the water self-diffusion coefficient is insensitive to the structure of the casein in solution or in a gelled state. The influence of casein concentration on the water self-diffusion coefficient could be explained by obstruction from the casein molecule. Assuming a simple model with two water regions, each characterized by a specific water concentration and value of the water diffusion coefficient, the water mobility reduction induced by the casein can be rationalized. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/333746
- author
- Mariette, F ; Topgaard, Daniel LU ; Jönsson, Bengt LU and Söderman, Olle LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- cell model for diffusion, obstruction, NMR, gel, casein, self-diffusion
- in
- Journal of Agricultural and Food Chemistry
- volume
- 50
- issue
- 15
- pages
- 4295 - 4302
- publisher
- The American Chemical Society (ACS)
- external identifiers
-
- pmid:12105961
- wos:000176813100024
- scopus:0037125108
- ISSN
- 0021-8561
- DOI
- 10.1021/jf0115948
- language
- English
- LU publication?
- yes
- id
- 2342b8e0-1454-4bfa-8b7f-50b2259bb18f (old id 333746)
- date added to LUP
- 2016-04-01 12:18:16
- date last changed
- 2022-03-05 21:44:05
@article{2342b8e0-1454-4bfa-8b7f-50b2259bb18f,
abstract = {{The self-diffusion coefficients of water in casein solutions and gels were measured using a pulsed-gradient spin-echo nuclear magnetic resonance technique (PGSE NMR). The dependence of the self-diffusion coefficient of water on the concentration and structure-of casein is reported. The results were analyzed using a cell model. It was found that the water self-diffusion coefficient is insensitive to the structure of the casein in solution or in a gelled state. The influence of casein concentration on the water self-diffusion coefficient could be explained by obstruction from the casein molecule. Assuming a simple model with two water regions, each characterized by a specific water concentration and value of the water diffusion coefficient, the water mobility reduction induced by the casein can be rationalized.}},
author = {{Mariette, F and Topgaard, Daniel and Jönsson, Bengt and Söderman, Olle}},
issn = {{0021-8561}},
keywords = {{cell model for diffusion; obstruction; NMR; gel; casein; self-diffusion}},
language = {{eng}},
number = {{15}},
pages = {{4295--4302}},
publisher = {{The American Chemical Society (ACS)}},
series = {{Journal of Agricultural and Food Chemistry}},
title = {{H-1 NMR diffusometry study of water in casein dispersions and gels}},
url = {{http://dx.doi.org/10.1021/jf0115948}},
doi = {{10.1021/jf0115948}},
volume = {{50}},
year = {{2002}},
}