Characterization of a renewable extracellular polysaccharide from defatted microalgae Dunaliella tertiolecta

Title
Characterization of a renewable extracellular polysaccharide from defatted microalgae Dunaliella tertiolecta
Authors
이철균
Keywords
Microalgae Polysaccharide Monosaccharide FT-IR NMR Biorefinery
Issue Date
2013
Publisher
BIORESOURCE TECHNOLOGY
Series/Report no.
BIORESOURCE TECHNOLOGY; vol.129 no.0 startpage 343 endpage 350
Abstract
Extracellular polysaccharide (EPS) was isolated from defatted micro-algae Dunaliela tertiolecta and defined as linear (1 ?4)-a-D-glucan based on monosaccharide composition, enzymatic and spectroscopic analyses. Optimization and characterization of acidic and enzymatic hydrolyses of EPS have been performed for its potential use as a renewable biorefinery material. The hydrolytic methods were improved to assess the effect of substrate specificity, reaction time, pH, ionic strength and temperature on efficiency of glucose production. EPS was effectively converted into glucose within one-step enzymatic or acidic hydrolysis under optimized conditions. Over 90% recovery of glucose was achieved for both hydrolytic approaches. High potential production of EPS and high yield conversion of this substrate to glucose may allow further exploration of microalga D. tertiolecta as a potential biomass producer for biotechnological and industrial exploitation of bioethanol.
URI
http://dx.doi.org/10.1016/j.biortech.2012.11.077
http://dspace.inha.ac.kr/handle/10505/31998
ISSN
0960-8524
Appears in Collections:
College of Engineering(공과대학) > Biotechnology (생명공학) > Journal Papers, Reports(생명공학 논문, 보고서)
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