Impact of Acid, Alkali and Microbial Hydrolysis on Bioethanol Yield from Peels of Cassava, Yam and Potato Sourced From Food Vendors in Etsako West Local Government Area, Edo State, Nigeria

This study evaluated the impact of acid, alkali, and microbial hydrolysis on ethanol yield from cassava, yam, and potato peels. Samples were sourced locally in Etsako West (LGA), Edo State, Nigeria using appropriate standard procedures. The RSM revealed that ethanol yield decreased with rising ferm...

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Main Authors: U. J. Ovueni, D. V. Adegunloye, A. K. Onifade
Format: Article
Language:English
Published: Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP) 2025-02-01
Series:Journal of Applied Sciences and Environmental Management
Subjects:
Online Access:https://www.ajol.info/index.php/jasem/article/view/288090
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author U. J. Ovueni
D. V. Adegunloye
A. K. Onifade
author_facet U. J. Ovueni
D. V. Adegunloye
A. K. Onifade
author_sort U. J. Ovueni
collection DOAJ
description This study evaluated the impact of acid, alkali, and microbial hydrolysis on ethanol yield from cassava, yam, and potato peels. Samples were sourced locally in Etsako West (LGA), Edo State, Nigeria using appropriate standard procedures. The RSM revealed that ethanol yield decreased with rising fermentation temperature but increased with substrate concentration and fermentation time. Optimal conditions were 14% substrate concentration, 34°C, and 55 hours of fermentation. Acid hydrolysates yielded the highest ethanol (0.22–0.27 mL/g), followed by alkali (0.21–0.25 mL/g) and microbial hydrolysates (0.14–0.20 mL/g). CPP acid hydrolysate achieved the highest fermentation efficiency (59.11%), followed by alkali (48.19%) and microbial (41.84%). ANOVA confirmed significant differences between hydrolysis methods, with acid and alkali methods yielding comparable results. While some ethanol quality parameters aligned with commercial standards, others varied significantly. Acid hydrolysis proved most effective, highlighting its potential for optimizing ethanol production from agricultural waste.
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institution Kabale University
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language English
publishDate 2025-02-01
publisher Joint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)
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spelling doaj-art-4bc728950e1446b094b82f1db615d5f12025-02-02T19:51:16ZengJoint Coordination Centre of the World Bank assisted National Agricultural Research Programme (NARP)Journal of Applied Sciences and Environmental Management2659-15022659-14992025-02-01291Impact of Acid, Alkali and Microbial Hydrolysis on Bioethanol Yield from Peels of Cassava, Yam and Potato Sourced From Food Vendors in Etsako West Local Government Area, Edo State, NigeriaU. J. OvueniD. V. AdegunloyeA. K. Onifade This study evaluated the impact of acid, alkali, and microbial hydrolysis on ethanol yield from cassava, yam, and potato peels. Samples were sourced locally in Etsako West (LGA), Edo State, Nigeria using appropriate standard procedures. The RSM revealed that ethanol yield decreased with rising fermentation temperature but increased with substrate concentration and fermentation time. Optimal conditions were 14% substrate concentration, 34°C, and 55 hours of fermentation. Acid hydrolysates yielded the highest ethanol (0.22–0.27 mL/g), followed by alkali (0.21–0.25 mL/g) and microbial hydrolysates (0.14–0.20 mL/g). CPP acid hydrolysate achieved the highest fermentation efficiency (59.11%), followed by alkali (48.19%) and microbial (41.84%). ANOVA confirmed significant differences between hydrolysis methods, with acid and alkali methods yielding comparable results. While some ethanol quality parameters aligned with commercial standards, others varied significantly. Acid hydrolysis proved most effective, highlighting its potential for optimizing ethanol production from agricultural waste. https://www.ajol.info/index.php/jasem/article/view/288090Agricultural wastes; Ethanol; Hydrolysis; Fermentation; Efficiency
spellingShingle U. J. Ovueni
D. V. Adegunloye
A. K. Onifade
Impact of Acid, Alkali and Microbial Hydrolysis on Bioethanol Yield from Peels of Cassava, Yam and Potato Sourced From Food Vendors in Etsako West Local Government Area, Edo State, Nigeria
Journal of Applied Sciences and Environmental Management
Agricultural wastes; Ethanol; Hydrolysis; Fermentation; Efficiency
title Impact of Acid, Alkali and Microbial Hydrolysis on Bioethanol Yield from Peels of Cassava, Yam and Potato Sourced From Food Vendors in Etsako West Local Government Area, Edo State, Nigeria
title_full Impact of Acid, Alkali and Microbial Hydrolysis on Bioethanol Yield from Peels of Cassava, Yam and Potato Sourced From Food Vendors in Etsako West Local Government Area, Edo State, Nigeria
title_fullStr Impact of Acid, Alkali and Microbial Hydrolysis on Bioethanol Yield from Peels of Cassava, Yam and Potato Sourced From Food Vendors in Etsako West Local Government Area, Edo State, Nigeria
title_full_unstemmed Impact of Acid, Alkali and Microbial Hydrolysis on Bioethanol Yield from Peels of Cassava, Yam and Potato Sourced From Food Vendors in Etsako West Local Government Area, Edo State, Nigeria
title_short Impact of Acid, Alkali and Microbial Hydrolysis on Bioethanol Yield from Peels of Cassava, Yam and Potato Sourced From Food Vendors in Etsako West Local Government Area, Edo State, Nigeria
title_sort impact of acid alkali and microbial hydrolysis on bioethanol yield from peels of cassava yam and potato sourced from food vendors in etsako west local government area edo state nigeria
topic Agricultural wastes; Ethanol; Hydrolysis; Fermentation; Efficiency
url https://www.ajol.info/index.php/jasem/article/view/288090
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