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    • ISSN: 2010-0221 (Print)
    • Abbreviated Title: Int. J. Chem. Eng. Appl.
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National Taipei University of Technology, Taiwan
 

HOME > Archive > 2025 > Volume 16 Number 1 (2025) >
IJCEA 2025 Vol.16(1): 11-15
doi: 10.18178/ijcea.2025.16.1.832

Effect of Temperature on Solubilization and Material Selectivity of Cassava Peels via Subcritical Water Treatment

Jane Chizie Ogbonna1,* , Mitsutoshi Nakajima2 , Marcos Antonio Das Neves3

  • 1Graduate School of Science and Technology, Doctoral Program in Life Science Innovation, University of Tsukuba, Tsukuba, Japan
  • 2Alliance for Research on the Mediterranean and North Africa (ARENA), University of Tsukuba, Tsukuba, Japan
  • 3Institute of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan

* Corresponding author

  • Manuscript receivedJuly 7, 2024
  • revisedAugust 15, 2024
  • acceptedSeptember 29, 2024
  • publishedJanuary 25, 2025

Abstract

Cassava is a climate-resilient, high-yielding food crop, and Nigeria is the largest global producer (59 million tons/year). While the tubers are widely consumed, over 30 million tons of peel waste is generated annually. To valorize this underutilized biomass, cassava peel was subjected to subcritical water treatment at temperatures ranging from 120–200°C for 15 min to analyze the effects on solubilization yields and biomass composition. Treatment at 140 °C for 15 min provided optimal peel solubilization (68%) and carbohydrate recovery. Solubilization effectively converted solids into soluble solids while significantly reducing residual peel cyanide by up to 65% relative to untreated biomass. This study demonstrates that subcritical water treatment can simultaneously extract value-added compounds from cassava peels while advancing food safety goals by removing cyanides. Sustainably processing abundant residues aligns with circular economy principles, adding value to wastes from this expanding crop cultivation.

Keywords

  • cassava peels
  • solubilization
  • subcritical water treatment
  • valorization
IJCEA-V16N1-832

How to Cite

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Jane Chizie Ogbonna, Mitsutoshi Nakajima, and Marcos Antonio Das Neves, "Effect of Temperature on Solubilization and Material Selectivity of Cassava Peels via Subcritical Water Treatment," International Journal of Chemical Engineering and Applications, vol. 16, no. 1, pp. 11-15, 2025. https://doi.org/10.18178/ijcea.2025.16.1.832

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Copyright © 2025 by the authors. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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