Related Experiment Video
Updated: Mar 18, 2026
07:59
Spectrophotometric Methods for the Study of Eukaryotic Glycogen Metabolism
Published on: August 19, 2021
4.7K
Glycogen-Surfactant Complexes: Phase Behavior in a Water/Phytoglycogen/Sodium Dodecyl Sulfate (SDS) System
A Nakano1, R Trie1,2, K Tateishi1,2
1a The United Graduate School of Agricultural Science, Gifu University (Shinshu University) , Yanagido 1-1, Gifu 501-11 , Japan.
Bioscience, Biotechnology, and Biochemistry
|July 12, 2016
Summary
Phytoglycogen precipitates with surfactants SDS and C12EO20. A phytoglycogen-SDS complex forms, enhancing dispersion stability and altering solution transmittance, as confirmed by viscosity measurements.
Area of Science:
- Colloid and Surface Science
- Biopolymer Chemistry
Background:
- Phytoglycogen, a branched glucan, exhibits unique phase behavior in aqueous solutions.
- Surfactants like sodium dodecyl sulfate (SDS) and C12EO20 can significantly alter the properties of biopolymers.
Purpose of the Study:
- To investigate the phase behavior of phytoglycogen in the presence of SDS and C12EO20.
- To elucidate the interactions between phytoglycogen and these surfactants and their impact on dispersion stability.
Main Methods:
- Phase behavior analysis in water/phytoglycogen/surfactant systems.
- Transmittance measurements of stirred solutions.
- Aqueous solution viscosity measurements.
Main Results:
- Phytoglycogen precipitated in both SDS and C12EO20 systems.
- SDS promoted more homogeneous dispersion and induced liquid-liquid phase separation.
- A phytoglycogen-SDS complex was identified, affecting transmittance and viscosity.
Conclusions:
- Phytoglycogen forms a complex with SDS, modifying its dispersion stability.
- The structure of the phytoglycogen-SDS complex influences solution properties.
- Understanding these interactions is key for controlling phytoglycogen's behavior in formulations.
Keywords:
glycogen-surfactant complexionic surfactantphase behaviorphytoglycogenstarch-surfactant complex
