UV-Vis Spectrophotomertic Investigation of β-Carotene and Morin in Presence of AOT/Ethanol System

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Authors

  • Ajaya Bhattarai
     ,NP
  • Wilczura–Wachnik Hanna
     ,PL

DOI:

https://doi.org/10.18311/jsst/2016/6597

Keywords:

AOT, Binding Constant, β, –Carotene, Distribution Constant, Ethanol, Morin.

Abstract

The precise measurements of β-carotene and morin absorbance in the presence of surfactant/ethanol at 25°C by UV-vis technique are reported. The surfactant used in the study was sodium bis(2-ethylhexyl) sulfosuccinate (Aerosol-OT or AOT) and the solvent was ethanol. For the system AOT/ethanol/β-carotene, surfactant concentration varied from 0.002 to 0.23 [mol/kg]; whereas in case of AOT/ethanol/morin system, it was between 0.001 and 0.25[mol/kg]. In all cases during UV- vis measurements β-carotene concentration was 0.0018[mol/kg] and morin concentration was 0.0094[mol/kg]. In UV-vis experiment, β-carotene or morin absorbance was measured as a function of surfactant concentration. Assuming the solute distribution between solvent and the AOT reversed micelles according to Nernstian law, the results were analysed with the help of a Non Linear Regression Procedure, in which a β-carotene and morin binding constants and distribution constants were obtained. Computed data indicate that in case of β-carotene the location of the molecules might not only in palisade layer of AOT reversed micelles but also in the interior whereas in case of morin, the only possible location seems to be the AOT palisade layer.

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Published

2016-07-06

How to Cite

Bhattarai, A., & Hanna, W. (2016). UV-Vis Spectrophotomertic Investigation of β-Carotene and Morin in Presence of AOT/Ethanol System. Journal of Surface Science and Technology, 32(1-2), 17–21. https://doi.org/10.18311/jsst/2016/6597

Issue

Volume 32, Issue 1-2, June 2016

Section

Articles
Crossref
Scopus
Google Scholar
Europe PMC
Received 2016-06-28
Accepted 2016-06-28
Published 2016-07-06

 

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