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All Journal Chemical Engineering Journal Storage (CEJS) Chimica Didactica Acta : Journal of Chemistry and Chemistry Education Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MICoMS)
Rizka Mulyawan
Malikussaleh University
Chemical Engineering, Chemistry & Bioengineering Chemistry Education Engineering Environmental Science Physics

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EFFECT OF SOLVENT AND EXTRACTION TIME VARIATION ON THE COFFEE OIL EXTRACTION RESULTS Marisa Fitria; Rizka Mulyawan; Sulhatun Sulhatun; Agam Muarif; Syamsul Bahri
Chimica Didactica Acta Vol 11, No 1: June 2023
Publisher : FKIP USK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jcd.v11i1.32550

Abstract

The traditional coffee with the greatest taste is called arabica. One of the ingredients made from coffee beans and used for air freshener is coffee oil. The Soxhlet extraction method, a separation technique that is often used to separate one or more compounds from a solid or liquid by adding a solvent, is one of the processes for making coffee oil. This research has been done before, but a comparison of different types of solvents and inclusion of differences in extraction time has not been done. The purpose of this research is to understand how the difference in extraction time and the comparison of solvent types affect the yield, density, and acid number produced. Extraction of hexane and ethanol by distillation for 120 minutes is a research technique. Extraction times were 90, 120, 150 and 180 minutes. In this study, the largest extraction with ethanol solvent was produced within 120 minutes of 25.75%, while the highest percent yield of coffee oil with hexane solvent was obtained within 120 minutes of 17.3%. The maximum specific gravity for 180 minutes with ethanol solvent is 0.94 gr/ml, while for 180 minutes with hexane solvent is 0.91 g/mL. Coffee oil with hexane solvent produced an acid value between 3.2 and 7 mg KOH/g, while coffee oil with ethanol solvent produced an acid value between 4.6 and 11.2 mg KOH/g.
OPTIMASI SUHU DAN KONSENTRASI PELARUT ETANOL PADA PROSES EKSTRAKSI TANIN DARI BIJI PINANG MENGGUNAKAN PENDEKATAN RSM Zahara Firda; Agam Muarif; Azhari Azhari; Rizka Mulyawan; Eddy Kurniawan
Chemical Engineering Journal Storage (CEJS) Vol 3, No 4 (2023): Chemical Engineering Journal Storage (CEJS) - Agustus 2023
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/cejs.v3i4.9552

Abstract

Indonesia merupakan salah satu negara yang memiliki komoditas penghasil biji pinang terbesar didunia. Biji pinang mengandung beberapa komponen senyawa kimia yang sangat penting diantaranya  tanin, alkaloid, lemak, serat, mineral dan pholyphenol. Tanin pada biji pinang ini dapat diambil dengan menggunakan metode ekstraksi menggunakan pelarut etanol. Salah satu fungsi tanin ini sebagai pewarna pada industri pembuatan tinta dan cat. Penelitian ini bertujuan untuk menentukan kondisi optimum pengaruh suhu dan konsentrasi pelarut etanol pada proses ekstraksi tanin dari biji pinang dengan menggunakan pendekatan response surface methodology (RSM). Variabel dalam penelitian ini adalah konsentrasi etanol diantaranya 78, 82, 86, 90 dan 94% dengan suhu operasi 50,55, 60, 65 dan 70 oC. Hasil penelitian ini menunjukkan kondisi yang optimum terdapat pada suhu 60 oC dan konsentrasi 86% dengan perolehan kadar tanin sebesar 33,04%, densitas diperoleh sebesar 1,32 gr dan berat tanin diperoleh sebesar 2,04 gr.
Analysis of Briquettes Characteristics Made of Oil Palm Frond Waste and Sugarcane Bagasse with Tapioca Starch Adhesive Agam Muarif; Rizka Mulyawan; Ahmad Fikri; Desvina Yulisda; Dedi Sutarma; Intan Rukmana; Ahmad Pane
Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MICoMS) Vol. 4 (2024): Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MI
Publisher : LPPM Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/micoms.v4i.888

Abstract

Oil palm frond waste and sugarcane bagasse are high-fiber biomass materials that can be converted into alternative energy sources like briquettes. The carbonization method is used to create charcoal briquettes, converting raw organic materials into carbon. The produced charcoal is mixed with a adhesive and molded into cylindrical or block shapes. This study aims to determine the characteristics of briquettes with varying compositions of palm fronds and bagasse (50:50 ; 40:60 ; 30:70 ; 20:80 ; 10:90 (b/b)) and different tapioca starch adhesive amounts (40% ; 45% ; 50% ; 55% (v/b)). In this study, tests were conducted on moisture content, ash content, calorific value, and combustion rate. The research findings indicate that the best-quality charcoal briquettes were produced by combining sugarcane bagasse and palm fronds in a 50:50 ratio with a adhesive containing 40% tapioca starch. These briquettes have the following properties: moisture content of 4.4545%, ash content of 4.62021%, combustion rate of 0.2283 g/min, and calorific value of 6,232.67 cal/g. These results indicate that the briquettes made from a mixture of oil palm frond waste and sugarcane bagasse using tapioca starch as a adhesive have met the SNI 01-6235-2000 standard criteria.
Co-Authors Agam Muarif Ahmad Fikri Ahmad Pane Azhari Azhari Dedi Sutarma Desvina Yulisda Eddy Kurniawan Intan Rukmana Marisa Fitria Sulhatun Sulhatun Syamsul Bahri Zahara Firda