1. JCCT
  2. Ch&ChT Vol. 19, No. 4, 2025
  3. Alkaline Delignification of Cocoa (Theobroma cacao L.) Pod Husk for Cellulose Fibers Extraction

Alkaline Delignification of Cocoa (Theobroma cacao L.) Pod Husk for Cellulose Fibers Extraction

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Andri Cahyo Kumoro1,2, Aji Prasetyaningrum1, Kristinah Haryani1, Ratnawati Ratnawati1, Yumna Agustia Nursalsabila1, Ziva Putri Yonanta,1 Misbahudin Alhanif3
Affiliation: 
1 Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Jl. Prof. Jacub Rais, Semarang, 50275 Indonesia 2 Institute of Food and Remedies Biomaterials (INFARMA), Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro, Jl. Prof. Jacub Rais, Semarang, 50275 Indonesia 3 Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Sumatera, Lampung Selatan, 35365 Indonesia andrewkomoro@che.undip.ac.id
DOI: 
https://doi.org/
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Keywords: 
caustic soda
cellulose
cocoa
delignification
extraction
Abstract: 
As one of the cocoa (Theobroma cacao L.) processing by-products, cocoa pod husk contains about 26.4% lignin-bound cellulose. Therefore, a delignification process is required to obtain high-purity cellulose by removing the lignin. This study aims to extract cellulose from a cocoa pod husk through alkaline delignification using caustic soda solution. In addition to alkaline solution concentration and liquid-to-solid ratio, the time and temperature of the alkaline delignification were studied in this research to determine the best delignification conditions based on the yield, purity, and characteristics of the cellulose produced. The resulting cellulose can be further used in numerous industrial applications.
References: 

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