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All Journal Jurnal Teknik Kimia USU Jurnal Teknik Kimia USU International Journal of Renewable Energy Development
Sarah, Maya
Chemical Engineering Department, Universitas Sumatera Utara, Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

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Effect of Power and Time in Pectin Production from Cocoa Pod Husk Using Microwave-Assisted Extraction Technique Maya Sarah; Hisham Hisham; Mushila Rizki; Ricka Erwinda
International Journal of Renewable Energy Development Vol 9, No 1 (2020): February 2020
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.9.1.125-130

Abstract

Investigation on microwave technique to extract pectin from cocoa pod husk in this study carries out using citric acid and hydrochloric acid (HCl). Extraction proceeds at various microwave powers (180, 300, 450, 600 Watt) and irradiation periods (10, 15, 20, 25, 30 minutes). This study observed effect of power and time to yield and quality of pectin.  Yield of pectin increased at elevated power and time either with citric acid or HCl solvent. Overall pectin quality in this study meet the IPPA quality factor exclude water content which relatively higher. MAE treatment with citric acid using microwave power of 300 Watt for 30 minutes resulted yield of 42% and high pectin quality as compare to MAE treatment with HCl. The best pectin product in this study has moisture content of 8%, ash content of 10%, equivalent weight of 714.29 mg, methoxyl content of 4.8% and galacturonate level of 43%. ©2020. CBIORE-IJRED. All rights reserved
Analisis Karakteristik Tar dari Hasil Pirolisis Sekam Padi dan Serbuk Gergaji Kayu Jati sebagai Sumber Energi Alternatif Durain Parmanoan; Maya Sarah; Laila Apriani; Oner Silalahi; Seri Maulina; Isti Madinah Hasibuan
Jurnal Teknik Kimia USU Vol. 15 No. 2 (2026): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v15i2.23502

Abstract

Indonesia still relies heavily on fossil energy, therefore, the development of renewable alternative energy sources is essential. Biomass is one of the potential renewable energy sources that can be further developed, including rice husk and teak wood sawdust waste. Both materials contain cellulose, hemicellulose, and lignin, which can be converted into tar through the pyrolysis process. This study aims to determine the characteristics of tar produced from the pyrolysis of rice husk and teak wood sawdust as an alternative energy source. The pyrolysis process was conducted at a temperature of 600oC with varying durations of 60, 120, and 150 minutes. The analyses included yield, density, viscosity, calorific value, acid number, moisture content, and chemical composition of the tar. The highest yield obtained was 7.98%; moisture content 9.22%; density 0.893 g/mL; viscosity 3.90 cSt; acid number 2.90%; and calorific value 4.329,485 kal/g. The GC–MS analysis results showed that the tar compounds derived from the mixture of rice husk and teak wood sawdust were predominantly composed of phenolic compounds.
Analisis Karakteristik Tar dari Hasil Pirolisis Sekam Padi dan Serbuk Gergaji Kayu Jati sebagai Sumber Energi Alternatif Durain Parmanoan; Maya Sarah; Laila Apriani; Oner Silalahi; Seri Maulina; Isti Madinah Hasibuan
Jurnal Teknik Kimia USU Vol. 15 No. 2 (2026): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v15i2.23502

Abstract

Indonesia still relies heavily on fossil energy, therefore, the development of renewable alternative energy sources is essential. Biomass is one of the potential renewable energy sources that can be further developed, including rice husk and teak wood sawdust waste. Both materials contain cellulose, hemicellulose, and lignin, which can be converted into tar through the pyrolysis process. This study aims to determine the characteristics of tar produced from the pyrolysis of rice husk and teak wood sawdust as an alternative energy source. The pyrolysis process was conducted at a temperature of 600oC with varying durations of 60, 120, and 150 minutes. The analyses included yield, density, viscosity, calorific value, acid number, moisture content, and chemical composition of the tar. The highest yield obtained was 7.98%; moisture content 9.22%; density 0.893 g/mL; viscosity 3.90 cSt; acid number 2.90%; and calorific value 4.329,485 kal/g. The GC–MS analysis results showed that the tar compounds derived from the mixture of rice husk and teak wood sawdust were predominantly composed of phenolic compounds.
Co-Authors Durain Parmanoan Hisham Hisham Isti Madinah Hasibuan Laila Apriani Mushila Rizki Oner Silalahi Ricka Erwinda Seri Maulina