Making Sustainable Biofuels and Sunscreen from Corncobs to Introduce Students to Integrated Biorefinery Concepts and Techniques

Autor/inn/en	Zhou, Hua; Zhan, Wang; Wang, Liuyang; Guo, Lijun; Liu, Yun
Titel	Making Sustainable Biofuels and Sunscreen from Corncobs to Introduce Students to Integrated Biorefinery Concepts and Techniques
Quelle	In: Journal of Chemical Education, 95 (2018) 8, S.1376-1380 (5 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Zusatzinformation	ORCID (Liu, Yun)
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/acs.jchemed.7b00819
Schlagwörter	Undergraduate Students; Science Instruction; Chemistry; College Science; Chemical Engineering; Biotechnology; Industry; Science Experiments; Laboratory Experiments; Science Laboratories + Suchen Sie Ihr Suchwort? Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Chemie; Chemisches Prüfverfahren; Biotechnologie; Industrie; Laboratory work; Laborarbeit
Abstract	To inspire upper-division undergraduate students to gain a deeper understanding of biorefinery, an experiment related to biofuels and lignin-based sunscreen products from corncob was performed in multiple offerings of a summer-semester class. Specifically, corncobs were pretreated with 1% H[subscript 2]SO[subscript 4] to obtain hemicellulose hydrolysates, which were detoxified, and followed with oleaginous yeast fermentation to yield microbial lipids. The microbial lipids were chemically transesterified into biodiesel in situ by an alkali catalyst. Subsequently, dilute acid-pretreated corncob residue was enzymatically saccharified to release glucose for ethanol production by separation hydrolysis and fermentation. Finally, the resultant lignin from the cellulosic ethanol production was valorized to make sunscreen. The main objectives of this work are to introduce students to integrated biorefinery concepts and techniques so that they can learn how to obtain added-value products from waste materials and to evoke students' awareness of environmental issues. (As Provided).
Anmerkungen	Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01