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Volume 11
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10.3390/en11123476
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Article

Comparison of Cassava Starch with Corn as a Feedstock for Bioethanol Production

by
Sarocha Pradyawong
1,
Ankita Juneja
2,
Muhammad Bilal Sadiq
1,
Athapol Noomhorm
1 and
Vijay Singh
2,*
1
Department of Food Engineering and Bioprocess Technology, Asian Institute of Technology, Pathum Thani 12120, Thailand
2
Department of Agricultural and Biological Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
*
Author to whom correspondence should be addressed.
Energies 2018, 11(12), 3476; https://doi.org/10.3390/en11123476
Submission received: 9 October 2018 / Revised: 10 December 2018 / Accepted: 10 December 2018 / Published: 13 December 2018
(This article belongs to the Section L: Energy Sources)
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Abstract

Cassava is a high potential feedstock for bioethanol production in Asian countries, primarily due to high yield of carbohydrate per unit land, and its ability to grow on marginal lands with minimal agrochemical requirements. The objective of this study was to compare the bioethanol production from cassava starch with corn starch using a conventional and a raw/granular starch hydrolyzing process (GSH). The fermentation performance of cassava starch was compared with three corn starch types with different amylose: Amylopectin ratios. The final ethanol concentration with cassava starch was similar to that of two corn starch types, dent corn and waxy corn for both processes. For the cassava starch, the ethanol concentration achieved with GSH process was 2.8% higher than that in the conventional process. Cassava starch yielded the highest fermentation rates of the four starches investigated, during the conventional process. Ethanol production and fermentation profiles comparable with corn, a widely used feedstock, makes cassava starch an attractive substrate for bioethanol production.
Keywords: bioethanol; corn; cassava starch; granular starch hydrolysis; fermentation bioethanol; corn; cassava starch; granular starch hydrolysis; fermentation
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MDPI and ACS Style

Pradyawong, S.; Juneja, A.; Sadiq, M.B.; Noomhorm, A.; Singh, V. Comparison of Cassava Starch with Corn as a Feedstock for Bioethanol Production. Energies 2018, 11, 3476. https://doi.org/10.3390/en11123476

AMA Style

Pradyawong S, Juneja A, Sadiq MB, Noomhorm A, Singh V. Comparison of Cassava Starch with Corn as a Feedstock for Bioethanol Production. Energies. 2018; 11(12):3476. https://doi.org/10.3390/en11123476

Chicago/Turabian Style

Pradyawong, Sarocha, Ankita Juneja, Muhammad Bilal Sadiq, Athapol Noomhorm, and Vijay Singh. 2018. "Comparison of Cassava Starch with Corn as a Feedstock for Bioethanol Production" Energies 11, no. 12: 3476. https://doi.org/10.3390/en11123476

APA Style

Pradyawong, S., Juneja, A., Sadiq, M. B., Noomhorm, A., & Singh, V. (2018). Comparison of Cassava Starch with Corn as a Feedstock for Bioethanol Production. Energies, 11(12), 3476. https://doi.org/10.3390/en11123476

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