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
Biomacromoleculesjournal_title
Biomacromoleculesauthors
Rogge TM,Stevens CVdoi
10.1021/bm049869qkeywords:
subject
Has Abstractpub_date
2004-09-01 00:00:00pages
1799-803issue
5eissn
1525-7797issn
1526-4602journal_volume
5pub_type
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