Facilitated synthesis of inulin esters by transesterification.

Abstract:

:Inulin, the polydisperse polyfructose, extracted from chicory, has been modified via transesterification, using fatty acid methyl esters (FAME). The grafting of an alkyl chain onto the inulin backbone under different conditions for the development of potential tensio-active derivatives is described. The modification of the biopolymer was performed in polar organic solvents, such as dimethyl sulfoxide (DMSO) and N-methylpyrrolidinone (NMP). Depending on the type of solvent, different catalytic systems, such as DMSO-Na+, NaH, and NaOMe, were used and compared in reaction efficiency and reproducibility. Therefore the synthesized derivatives were characterized by 1H- and 13C NMR. The methods using NaH had a mean reaction efficiency of 80%, whereas the one using NaOMe showed a slight decrease in reaction efficiency to 75%. However, the method using NaOMe in NMP proved to be the preferred way to graft the inulin backbone with FAME on a bigger scale. The methods using DMSO as a solvent were not attractive since the end products had a specific bad smell.

journal_name

Biomacromolecules

journal_title

Biomacromolecules

authors

Rogge TM,Stevens CV

doi

10.1021/bm049869q

keywords:

subject

Has Abstract

pub_date

2004-09-01 00:00:00

pages

1799-803

issue

5

eissn

1525-7797

issn

1526-4602

journal_volume

5

pub_type

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