A modified colorimetric method for the estimation of beta-cyclodextrin using phenolphthalein.

Channa, Basappa and Pramila Rao, P. and Narasimha Rao, D. and Divakar, S. (1998) A modified colorimetric method for the estimation of beta-cyclodextrin using phenolphthalein. International Journal of Food Science and Technology, 33 (6). 517-520 ; 8 ref.

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Abstract

The binding equilibrium between beta-cyclodextrin and phenolphthalein was used to develop a [spectroscopic] method for estimation of beta-cyclodextrin in solution. From logarithmic plots of amounts of beta-cyclodextrin against absorbance at 554 nm, a relation log X = (log A - logY)/B was found, which gave an estimate of beta-cyclodextrin in the concn. range 0.0045 mg/ml (3.96muM) to 4.7 mg/ml (4.14mM), where X = intercept and B = slope. This method was found to be highly reproducible and reliable.

Item Type:	Article
Uncontrolled Keywords:	DEXTRINS-; SPECTROSCOPY-; CYCLODEXTRINS-
Subjects:	600 Technology > 08 Food technology > 01 Analysis
Divisions:	Fermentation Technology and Bioengineering
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	30 Jul 2008 11:03
Last Modified:	03 Oct 2018 08:53
URI:	http://ir.cftri.res.in/id/eprint/7747

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