Galactomannan esters. A simple, cost-effective method of preparation and characterization.

Savitha Prashanth, M. R. and Parvathy, K. S. and Susheelamma, N. S. and Harish Prashanth, K. V. and Tharanathan, R. N. and Cha, A. and Anilkumar, G. (2006) Galactomannan esters. A simple, cost-effective method of preparation and characterization. Food Hydrocolloids, 20 (8). pp. 1198-1205.

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Abstract

Acetate, succinate and octenylsuccinate derivatives of galactomannans were prepared in anhydrous reaction conditions carried out at slightly elevated temperature (40-60C) using solid NaHCO3 as a mild base catalyst. Prior surface wetting of the reactants with approx. 5% absolute ethyl alcohol gave derivatives with a higher degree of substitution, although it decreased the slurry viscosity. Use of NaHCO3 significantly minimized high pH-induced degradative reactions, and its quantitative removal later was easily accomplished by repeated washings with aqueous ethyl alcohol. FTIR, 13C-NMR, HPSEC and SEM data provided additional structural information. These derivatives are useful as functional food ingredients. All rights reserved, Elsevier.

Item Type:	Article
Uncontrolled Keywords:	ACETIC-ACID; ESTERS-; ORGANIC-ACIDS; POLYSACCHARIDES-; GALACTOMANNANS-; MODIFICATION-; SUCCINIC-ACID
Subjects:	600 Technology > 09 Industrial oils, fats, waxes, gases > 06 Vegetable Gums
Divisions:	Dept. of Biochemistry Sensory Science
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	05 Aug 2008 11:18
Last Modified:	28 Sep 2018 10:22
URI:	http://ir.cftri.res.in/id/eprint/7498

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