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Starch saccharification and fermentation of uncooked sweet potato roots for fuel ethanol production

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jan 2013Publisher:Elsevier BVJournal:Bioresource Technology, volume 128, pages 835-838 (issn: 0960-8524,

Authors: Caifa Chen; Yanhu Shen; Peng Zhang; Dongxu Sun; Zichun Hua; Daifu Ma; Tielin Ding;

doi: 10.1016/j.biortech.2012.10.166

pmid: 23219688

Starch saccharification and fermentation of uncooked sweet potato roots for fuel ethanol production

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Abstract

An energy-saving ethanol fermentation technology was developed using uncooked fresh sweet potato as raw material. A mutant strain of Aspergillus niger isolated from mildewed sweet potato was used to produce abundant raw starch saccharification enzymes for treating uncooked sweet potato storage roots. The viscosity of the fermentation paste of uncooked sweet potato roots was lower than that of the cooked roots. The ethanol fermentation was carried out by Zymomonas mobilis, and 14.4 g of ethanol (87.2% of the theoretical yield) was produced from 100g of fresh sweet potato storage roots. Based on this method, an energy-saving, high efficient and environment-friendly technology can be developed for large-scale production of fuel ethanol from sweet potato roots.

Related Organizations

Jiangsu Normal University
China (People's Republic of)
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Jiangxi Normal University
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Civil Aviation Authority of Singapore
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Macau University of Science and Technology
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Keywords

Zymomonas, Ethanol, Carbohydrates, Starch, Plant Roots, Biofuels, Fermentation, Aspergillus niger, Cooking, Ipomoea batatas

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	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	36
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	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%