Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 539695
Title The solubility of primary plant cell wall polysaccharides in LiCl-DMSO
Author(s) Broxterman, Suzanne E.; Erven, Gijs van; Schols, Henk A.
Source Carbohydrate Polymers 200 (2018). - ISSN 0144-8617 - p. 332 - 340.
DOI https://doi.org/10.1016/j.carbpol.2018.07.083
Department(s) Food Chemistry Group
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) Acetylation - Ball milling - Carrot - LiCl-DMSO - Strawberry - Tomato
Abstract

In order to understand the architecture of the primary plant cell wall, knowledge on its polysaccharides and their interactions is of importance. In this study, further architectural insight was obtained by sequential LiCl-DMSO and buffer extractions after planetary ball milling. After milling, up to 50% of all polysaccharides in the Chelating agent Unextractable Solids (ChUS) from carrot, tomato and strawberry solubilised in LiCl-DMSO without loss of structural information. Approximately 30% of all pectin was LiCl-DMSO insoluble but solubilised in the subsequent buffer extraction, and these populations had higher HG:RG-I ratios than LiCl-DMSO soluble populations. The degree of methyl-esterification (DM) of pure pectins highly determined its solubility in LiCl-DMSO. However, solubility of cell wall pectin was governed by more factors since both soluble and insoluble pectin were substantially methyl-esterified and acetylated. Digestion of LiCl-DMSO soluble and insoluble fractions by pectinases confirmed the presence of acetylated HG-regions for carrot and strawberry pectin.

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