Effect of hydrothermal pre-treatment on duckweed (Landoltia punctata) biomass for simultaneous saccharification and fermentation process
메타 데이터
바이오화학분류
바이오플라스틱
플라스틱
바이오정밀화학
용매
화학제품
연료
화장품용 기능성소재
계면활성제⁄증점제
의료용 화학소재
식품첨가제
논문
Effect of hydrothermal pre-treatment on duckweed (Landoltia punctata) biomass for simultaneous saccharification and fermentation process
학술지
Biomass & bioenergy
저자명
Souto, Luciana Reis Fontinelle; Silva, Isadora Ferreira da; Ninow, Jorge L.; Collins, Samuel R.A.; Elliston, Adam; Waldron, Keith W.
초록
<P><B>Abstract</B></P> <P>Duckweed has been proposed as a potential raw material to produce renewable biofuels, signified by: its high productivity and low competition with agriculture; its high proportion of carbohydrate (cellulose and starch); a low lignin content, which avoids the likely recalcitrance of cellulose to saccharification. This study has investigated the effect of hydrothermal pre-treatment on structural and chemical changes in Brazilian duckweed (<I>L. punctata</I>) biomass as well as its conversion to bioethanol, focusing on the hydrolysis and fermentation of the cellulose fraction. The biomass was hydrothermally pre-treated over a range of severities (1.9–4.8) and then subjected to simultaneous saccharification and fermentation. The best pre-treatment condition was at a severity factor of 3.9; this condition produced the highest ethanol yield (89 wt% of the theoretical potential yield). This represents a 63 wt% increase compared to untreated biomass. Hydrothermal pre-treatment has been shown to be a suitable technology for increasing ethanol yields from <I>L. punctata</I> biomass towards the theoretical maximum.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Hydrothermal pre-treatments of Brazilian duckweed were investigated. </LI> <LI> The pre-treatment facilitates the solubilisation of cellulose and starch. </LI> <LI> Hydrothermal pre-treatment enhanced ethanol yield to 63% over untreated biomass. </LI> </UL> </P>