COMPARATIVE LEAD-BINDING ACTIVITY OF PECTINS WITH DIFFERENT MOLECULAR MASS IN VITRO
Abstract
The paper describes kinetics of binding of lead ions with low-etherized pectins with different molecular masses determined by means of acid hydrolysis. The authors have determined indices of maximum metal-binding activity of the pectin specimen under study with the environmental pH range of 2 to 6. The Langmuir adsorption model was used to describe adsorption isotherms and calculate adsorption parameters. As reported, as the molecular mass of pectins reduces, the maximum adsorption capacity reliably increases and the affinity of pectin to lead ions decreases.
About the Authors
K. E. Makarova
Pacific State Medical University
Russian Federation
Russian Federation
E. V. Khozhaenko
School of Biomedicine of the Far Eastern Federal University; A.V. Zhirmunsky Institute of Marine Biology of the Far Eastern Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
R. Yu. Khotimchenko
A.V. Zhirmunsky Institute of Marine Biology of the Far Eastern Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
V. V. Kovalev
A.V. Zhirmunsky Institute of Marine Biology of the Far Eastern Branch of the Russian Academy of Sciences
Russian Federation
Russian Federation
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Review
For citations:
Makarova K.E., Khozhaenko E.V., Khotimchenko R.Yu., Kovalev V.V. COMPARATIVE LEAD-BINDING ACTIVITY OF PECTINS WITH DIFFERENT MOLECULAR MASS IN VITRO. Pacific Medical Journal. 2013;(2):85-88. (In Russ.)
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