Advanced

Flavonoids – Precipitation Kinetics and Interaction with Surfactant Micelles

Nilsson, Lars LU ; Löf, David LU ; Schillén, Karin LU and Bergenståhl, Björn LU (2011) In Journal of Food Science 76(3). p.35-39
Abstract
Polyphenolic substances, such as flavonoids, attract considerable interest due to their ability to act as antioxidants. The vast majority of studies published deal with the nutritional, biochemical, or chemical structure aspects of these substances while few reports exist on the physico-chemical properties as well as solution behavior of the substances. In this article we report on the precipitation kinetics of naringenin, quercetin, and rutin in pure water as well as in micellar solutions of Tween 80. The methods used are dynamic and static light scattering in conjunction with cryo transmission electron microscopy. The results show that the substances precipitate rapidly in pure water. In the presence of Tween 80 micelles, however, the... (More)
Polyphenolic substances, such as flavonoids, attract considerable interest due to their ability to act as antioxidants. The vast majority of studies published deal with the nutritional, biochemical, or chemical structure aspects of these substances while few reports exist on the physico-chemical properties as well as solution behavior of the substances. In this article we report on the precipitation kinetics of naringenin, quercetin, and rutin in pure water as well as in micellar solutions of Tween 80. The methods used are dynamic and static light scattering in conjunction with cryo transmission electron microscopy. The results show that the substances precipitate rapidly in pure water. In the presence of Tween 80 micelles, however, the flavonoids can become solubilized in the micelles, which can result in solutions which are stable for days. The results suggest that the extent of solubilization is related to the chemical structure of the flavonoids. This study illustrates that precipitation kinetics and the distribution of polyphenolic substances in solutions and dispersions are factors of importance, which should be taken into account when designing investigations and interpreting results. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
anoparticles, antioxidants, polyphenols
in
Journal of Food Science
volume
76
issue
3
pages
35 - 39
publisher
Institute of Food Technologists
external identifiers
  • wos:000289260600003
  • scopus:79955005387
ISSN
0022-1147
DOI
10.1111/j.1750-3841.2011.02103.x
language
English
LU publication?
yes
id
dc46e811-d173-488c-b81f-f263d5ab5f2f (old id 1781231)
date added to LUP
2011-02-10 17:01:21
date last changed
2017-08-06 04:19:48
@article{dc46e811-d173-488c-b81f-f263d5ab5f2f,
  abstract     = {Polyphenolic substances, such as flavonoids, attract considerable interest due to their ability to act as antioxidants. The vast majority of studies published deal with the nutritional, biochemical, or chemical structure aspects of these substances while few reports exist on the physico-chemical properties as well as solution behavior of the substances. In this article we report on the precipitation kinetics of naringenin, quercetin, and rutin in pure water as well as in micellar solutions of Tween 80. The methods used are dynamic and static light scattering in conjunction with cryo transmission electron microscopy. The results show that the substances precipitate rapidly in pure water. In the presence of Tween 80 micelles, however, the flavonoids can become solubilized in the micelles, which can result in solutions which are stable for days. The results suggest that the extent of solubilization is related to the chemical structure of the flavonoids. This study illustrates that precipitation kinetics and the distribution of polyphenolic substances in solutions and dispersions are factors of importance, which should be taken into account when designing investigations and interpreting results.},
  author       = {Nilsson, Lars and Löf, David and Schillén, Karin and Bergenståhl, Björn},
  issn         = {0022-1147},
  keyword      = {anoparticles,antioxidants,polyphenols},
  language     = {eng},
  number       = {3},
  pages        = {35--39},
  publisher    = {Institute of Food Technologists},
  series       = {Journal of Food Science},
  title        = {Flavonoids – Precipitation Kinetics and Interaction with Surfactant Micelles},
  url          = {http://dx.doi.org/10.1111/j.1750-3841.2011.02103.x},
  volume       = {76},
  year         = {2011},
}