Chemical characterisation and analysis of the cell wall polysaccharides of duckweed (Lemna minor)

Zhao, X, Moates, G K, Wellner, N, Collins, S R A, Coleman, M J and Waldron, K W (2014) Chemical characterisation and analysis of the cell wall polysaccharides of duckweed (Lemna minor). Carbohydrate Polymers, 111. pp. 410-418. ISSN 1879-1344

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Abstract

Duckweed is potentially an ideal biofuel feedstock due to its high proportion of cellulose and starch and low lignin content. However, there is little detailed information on the composition and structure of duckweed cell walls relevant to optimising the conversion of duckweed biomass to ethanol and other biorefinery products. This study reports that, for the variety and batch evaluated, carbohydrates constitute 51.2% (w/w) of dry matter while starch accounts for 19.9%. This study, for the first time, analyses duckweed cell wall composition through a detailed sequential extraction. The cell wall is rich in cellulose and also contains 20.3% pectin comprising galacturonan, xylogalacturonan, rhamnogalacturonan; 3.5% hemicellulose comprising xyloglucan and xylan, and 0.03% phenolics. In addition, essential fatty acids (0.6%, α-linolenic and linoleic/linoelaidic acid) and p-coumaric acid (0.015%) respectively are the most abundant fatty acids and phenolics in whole duckweed.

Item Type: Article
Additional Information: Copyright © 2014 Elsevier Ltd. All rights reserved.
Faculty \ School: Faculty of Science > School of Biological Sciences
Depositing User: Pure Connector
Date Deposited: 08 Oct 2014 08:48
Last Modified: 21 Apr 2020 23:28
URI: https://ueaeprints.uea.ac.uk/id/eprint/50322
DOI: 10.1016/j.carbpol.2014.04.079

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