Zhao, X., Elliston, A., Collins, S. R. A., Moates, G. K., Coleman, M. J. and Waldron, K. W. (2012) Enzymatic saccharification of duckweed (Lemna minor) biomass without thermophysical pretreatment. Biomass and Bioenergy, 47. pp. 354-361. ISSN 0961-9534

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Abstract

Duckweed is a rapidly replicating aquatic plant that has the potential to decontaminate effluent streams from food processing and also has a low-lignin content. Hence it could provide a more suitable source of cellulose for conversion to biofuels. This paper reports that duckweed biomass has the potential to be enzymatically saccharified to produce glucose and other cell-wall-derived sugars which might be converted to ethanol by fermentation or exploited as industrial platform chemicals. The enzymatic digestibility has been studied on alcohol-extracted, water-insoluble preparations of duckweed cell walls. Within these, glucose accounts for w = 25.4% (dry wt), which has arisen from cellulose and non-cellulosic glucans including starch. Several commercial cell-wall degrading enzymes and cocktails have been evaluated. Saccharification can be achieved within about 8 h using commercial cellulase at 4.35 FPU g−1 substrate in conjunction with added beta-glucosidase at 100 U g−1 substrate. The potential for exploiting duckweed is discussed.

Item Type:	Article
Uncontrolled Keywords:	duckweed,lemna minor,enzymes,saccharification,biomass sugar
Faculty \ School:	Faculty of Science > School of Biological Sciences
Depositing User:	Pure Connector
Date Deposited:	07 Oct 2014 10:40
Last Modified:	21 Apr 2020 23:28
URI:	https://ueaeprints.uea.ac.uk/id/eprint/50323
DOI:	10.1016/j.biombioe.2012.09.025

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