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All Journal Jurnal Keteknikan Pertanian Tropis dan Biosistem Agroindustrial Journal
Devita, Wilda Harlia
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Agriculture, Biological Sciences & Forestry Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

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Characterization of Activated Carbon from Coffee Husk Using Potassium Hydroxide (KOH) as an Activator Putra , Tamam Athallah Rhely; Yunira, Eka Nur'azmi; Pratama, Borneo Satria; Witoyo, Jatmiko Eko; Pangestuti , Martasari Beti; Putra, Endo Pebri Dani; Nugraha, Aditya Wahyu; Devita, Wilda Harlia
Journal of Tropical Agricultural Engineering and Biosystems - Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 13 No. 1 (2025): April 2025
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2025.013.01.01

Abstract

Coffee husk is an agricultural by-product of coffee production, and its utilization is still limited. So, the study focuses on the potential of coffee husk to be turned into activated carbon. An essential step in producing activated carbon is activation, primarily performed using chemical solvents, such as potassium hydroxide (KOH). However, there are still limited studies on the effect of KOH concentration on the activation of charcoal from coffee husk. Therefore, the study aims to determine the impact of potassium hydroxide (KOH) concentrations on the characteristics of activated carbon derived from coffee husk. The KOH concentration ranges used to activate charcoal were 0 M (as control), 1 M, and 2 M, and were conducted using the completely randomized design (CRD) approach. The characteristics of the activated carbon were analyzed according to the SNI 06-3730-1995 standard, including moisture content, ash content, volatile matter content, and bonded carbon content. The results indicated that KOH concentration significantly impacted the characteristics of activated carbon derived from coffee husk.
Coffee Supply Chain Performance Measurement In Ulu Belu District, Tanggamus Regency, Lampung Province Sylvia, Teny; Wiyono, Teguh; Putra, Endo Pebri Dani; Asrol, Muhammad; Sembiring, Noveliska Br; Yunira, Eka Nur'azmi; Subara, Deni; Devita, Wilda Harlia
Agroindustrial Journal Vol 12, No 1 (2025)
Publisher : Department of Agroindustrial Technology, Faculty of Agricultural Technology UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/aij.v12i1.106071

Abstract

Ulu Belu District, as the largest producer of robusta coffee in Lampung Province, faces challenges throughout its coffee supply chain, from cultivation to marketing. This study aims to examine the structure of the coffee supply chain, evaluate its performance using the Supply Chain Operations Reference (SCOR) model combined with the Analytic Network Process (ANP), and recommend strategies for improvement. The identification results reveal that the coffee supply chain in Ulu Belu District involves several key actors, including farmers, commodity aggregators, collectors, business partners, ground coffee processors, domestic roasters, retailers, exporters, and consumers. This supply chain operates through the flow of products, information, and financial resources among these actors. The coffee supply chain performance measurement results in Ulu Belu District indicate a very poor overall performance score of 58.855. Performance at the three supply chain tiers also reflects concerning conditions: farmers scored 59.721, indicating a very poor performance; collectors scored 62.888, reflecting a poor condition; and business partnerships scored the lowest at 53.957, also categorized as very poor. The strategies for improving supply chain performance include providing training and outreach on Good Agricultural Practices (GAP), implementation of GAP and Good Handling Practices (GHP), implementation of the Common Code for the Coffee Community (4C) certification, increasing storage warehouse capacity, implementing Collaborative Planning, Forecasting, and Replenishment (CPFR) in supply chain management in Ulu Belu, determining safety stock, and planning delivery schedules.
Co-Authors Aditya Wahyu Nugraha Asrol, Muhammad Endo Pebri Dani Putra Jatmiko Eko Witoyo Noveliska Br Sembiring, Noveliska Br Pangestuti, Martasari Beti Pratama, Borneo Satria Subara, Deni Teguh Wiyono Yunira, Eka Nur'azmi