Bioethanol production from Solanum lycocarpum starch: A sustainable non-food energy source for biofuels
메타 데이터
바이오화학분류
바이오플라스틱
플라스틱
바이오정밀화학
용매
화학제품
연료
화장품용 기능성소재
계면활성제⁄증점제
의료용 화학소재
식품첨가제
논문
Bioethanol production from Solanum lycocarpum starch: A sustainable non-food energy source for biofuels
학술지
Renewable energy
저자명
Morais, Ricardo R.; Pascoal, Aline M.; Pereira-Jú nior, Marcos A.; Batista, Karla A.; Rodriguez, Armando G.; Fernandes, Ká tia F.
초록
<P><B>Abstract</B></P> <P>In this study the starch from <I>Solanum lycocarpum</I> fruit was used for bioethanol production. <I>S. lycocarpum</I> starch was hydrolyzed in a serial reactor containing α-amylase and glucoamylase immobilized onto glutaraldehyde-derivative polyaniline, producing 91.6% of glucose for a 10% starch suspension and 86.3% of glucose for a 20% starch suspension after 60 min of reaction. Fermentation parameters for bioethanol production were evaluated by using a full factorial design (3<SUP>2</SUP>) with fermentation time (h) and concentration of glucose equivalent (%) as independent variables. Results from factorial design showed that the highest ethanol production was found when 1% of glucose equivalent was fermented by 48 h. At these conditions the bioethanol conversion efficiency reached 92.13% and it was estimated a productivity of 596.96 L tonne<SUP>−1</SUP>. It can be concluded that the starch from <I>S. lycocarpum</I> fruit is a promising non-food and renewable energy source for bioethanol production.</P> <P><B>Highlights</B></P> <P> <UL> <LI> New non-food starch source was successfully used to produce bioethanol. </LI> <LI> Starch saccharification and liquefaction using reactors with immobilized enzymes. </LI> <LI> Enzymatic hydrolysis produced 91.6% of glucose with 10% (w/v) starch suspension. </LI> <LI> 92.13% of bioethanol conversion efficiency in fermentation using <I>Saccharomyces bayanus</I>. </LI> <LI> It was predicted a theoretical bioethanol yield of 0.596 L kg<SUP>−1</SUP> of hydrolyzed starch. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>