Arrowroot as a novel substrate for ethanol production by solid state simultaneous saccharification and fermentation

• Published in: Biomass & bioenergy Vol. 34; no. 8; pp. 1159 - 1164
• Main Authors: Wu, Tian-xiang, Wang, Feng, Tang, Qing-li, Zhu, Zuo-hua
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.08.2010; Elsevier
• Subjects: Alcohols: methanol, ethanol, etc; Alpha amylase; Alternative fuels. Production and utilization; Applied sciences; arrowroot starch; Canna; Canna edulis; Canna edulis Ker; corn cobs; Energy; energy crops; enzymatic hydrolysis; enzyme substrates; Ethanol; ethanol production; Ethyl alcohol; Exact sciences and technology; Fermentation; fuel production; Fuels; Glucoamylase; Oryza sativa; Plackett–Burman design; processing technology; reaction kinetics; Rice; rice bran; Saccharification; Saccharomyces cerevisiae; Shortages; Solid state; solid state fermentation; Solid state simultaneous saccharification and fermentation; sugars; Waste water; wastewater; yields; Solid state simultaneous saccharification and fermentation; Plackett–Burman design; Glucoamylase; Alpha amylase; Canna edulis Ker; Saccharomyces cerevisiae; Solid state simultaneous; saccharification and fermentation; Plackett―Burman design
• ISSN: 0961-9534; 1873-2909
• DOI: 10.1016/j.biombioe.2010.03.002

Ethanol production from Canna edulis Ker was successfully carried out by solid state simultaneous saccharification and fermentation. The enzymatic hydrolysis conditions of C. edulis were optimized by Plackett–Burman design. The effect of inert carrier (corncob and rice bran) on ethanol fermentation and the kinetics of solid state simultaneous saccharification and fermentation was investigated. It was found that C. edulis was an alternative substrate for ethanol production, 10.1% (v/v) of ethanol concentration can attained when 40 g corncob and 10 g rice bran per 100 g C. edulis powder were added for ethanol fermentation. No shortage of fermentable sugars was observed during solid state simultaneous saccharification and fermentation. There was no wastewater produced in the process of ethanol production from C. edulis with solid state simultaneous saccharification and fermentation and the ethanol yield of more than 0.28 tonne per one tonne feedstock was achieved. This is first report for ethanol production from C. edulis powder.