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All Journal JKPK (Jurnal Kimia dan Pendidikan Kimia)
Henny Purwaningsih
Department of Chemistry, Faculty of Mathematics and Natural Sciences, IPB University, Bogor, Indonesia Integrated Laboratory, IPB University, Bogor, Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry

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Isolation and Characterization of Cellulose from Golden Melon (Cucumis melo L.) Fruit Peel Using Microwave-Assisted Extraction Nurul Fadilah; Henny Purwaningsih; Tetty Kemala
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 11, No 1 (2026): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v11i1.106706

Abstract

Golden melon (Cucumis melo L.) peel represents a promising source of cellulose derived from agricultural by-products. This study aimed to identify a favorable NaOH concentration for cellulose isolation using microwave-assisted extraction (MAE), as well as to evaluate the resulting cellulose in terms of yield, composition, and crystallinity. The extraction was conducted at 450 W using NaOH concentrations of 4%, 8%, and 10%. A relatively high cellulose yield (41.87 ± 0.16%) was obtained with 8% NaOH, accompanied by improved purity, as indicated by the relatively high cellulose content (76.51%) and low lignin content (8.47%). Fourier Transform Infrared (FTIR) analysis confirmed the presence of characteristic cellulose functional groups along with a reduction in lignin-related peaks. X-ray diffraction (XRD) analysis indicated increased crystallinity after treatment, with crystallinity indices of 52.5%, 51.8%, and 40.3% for 4%, 8%, and 10% NaOH, respectively. SEM analysis of the 8% NaOH sample showed a rough and porous morphology, likely associated with the removal of non-cellulosic components. These findings suggest that MAE is a potentially effective approach for cellulose isolation from golden melon peel, with 8% NaOH representing a favorable condition within the studied parameters based on a balance of yield, purity, and crystallinity.
Co-Authors Nurul Fadilah Tetty Kemala