Lia, Lismeri and Hertantri Yulia Rahmi, Tantri and Nada Afifah Gomiyati, Nada and Yuli Darni, Yuli and Panca Nugrahini, Panca and Azhar, Azhar (2021) Preparation and Characterization of Nanocrystalline Cellulosefrom Cassava Stem Waste by Electromagnetic Induction. Jurnal Rekayasa Kimia dan Lingkungan, 16 (02). pp. 109-117. ISSN ISSN 1412-5064, e-ISSN 2356-1661

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Abstract

Cassava stems were one of the largest agricultural byproducts in Indonesia, especially in Lampung Province. It is known that cassava stems consist of lignocellulose content, especially cellulose which reaches 39.29%. The cellullose value of cassava stems has a great potential to be used as raw material for nanocrystalline cellulose (NCC) production. The preparation of NCC consists of four main stages, namely: pre-hydrolysis, delignification, bleaching, and acid hydrolysis. The pre-hydrolysis stage was carried out by boiling a solution of CH3COOH and cassava stem powder for 60 minutes at a temperature of 105 o C. Cassava stem powder was then delignified using NaOH 25% solution heated to a temperature of 105 o C for 1 hour. NaOCl 3.5% solution was used in the bleaching stage and take place for 60 minutes at temperature of 50 o C. The last step was acid hydrolysis using 2.5 N HCl solution for 15 minutes at a temperature of 105 o C, then the electromagnetic induction treatment was at various temperatures of 30 o C, 50 o C, and 70 o C for 60 minutes. The prepared nanocrystalline cellulose was tested its lignocellulose content, and with x-ray difrraction, and particle size analyzer. The results showed that the percentage of cellulose reached 62.93%, the high index of crystallinity 90.68%, and an average particle size of 18.04 µm with some nanometer-sized particles. It was concluded that electromagnetic induction has increased crystallinity and decreased the size of nanocrystalline cellulose.`

Item Type:	Article
Uncontrolled Keywords:	acid hydrolysis, cassava stems, electromagnetic induction, nanocrystalline cellulose, α-cellulose
Subjects:	T Technology > TP Chemical technology
Divisions:	Fakultas Teknik (FT) > Prodi Teknik Kimia
Depositing User:	PANCA NUGR
Date Deposited:	09 Jun 2022 01:06
Last Modified:	09 Jun 2022 01:06
URI:	http://repository.lppm.unila.ac.id/id/eprint/42221

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