Proximate Analysis and Exponential Model of Activated Carbon from Durian (Durio zibethinus) Peel from South Lampung: Analisis Proksimat dan Model Exponensial Karbon Aktif dari Kulit Buah Durian (Durio zibethinus) Asal Lampung Selatan

Pangestuti, Martasari Beti
Witoyo, Jatmiko Eko
Kurniawan, Randy Yusuf
Cavendish, Amedeo

Jurnal Keteknikan Pertanian Tropis dan Biosistem
Vol. 13 No. 3 (2025): December 2025

Durian (Durio zibethinus) peel is a major agro-waste with high lignocellulosic content and functional groups, making it a promising precursor for activated carbon. This study synthesized and characterized activated carbon from South Lampung durian peel using potassium hydroxide (KOH) activation at 0 M, 1 M, and 2 M. Proximate analysis (moisture and ash content, volatile matter, fixed carbon) was conducted, and exponential regression models were developed to examine the effect of KOH concentration. Results showed significant effects (p < 0.05) of KOH on all parameters. Moisture decreased from 59.23±2.02% to 7.19±3.27%, ash from 6.29±0.31% to 1.45±0.52%, and volatile matter from 7.81±0.45% to 2.09±0.02%, while fixed carbon increased from 84.88±0.31% to 89.72±0.52%. All parameters followed exponential trends with high R² values, indicating strong model fit. These findings confirmed that KOH activation improves activated carbon quality, and exponential models provide predictive insight. Therefore, durian peel from South Lampung is promising for high-quality activated carbon production.