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All Journal Jurnal Rekayasa Proses International Journal of Renewable Energy Development CHEESA: Chemical Engineering Research Articles Jurnal Rekayasa Proses ASEAN Journal on Science and Technology for Development International Journal of Renewable Energy Development Jurnal Rekayasa Proses
Prasakti, Laras
Chemical Engineering Department, Faculty Of Engineering, Universitas Gadjah Mada, Jalan Grafika No. 2, Yogyakarta 55281, Indonesia
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Mathematics Social Sciences

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Journal : CHEESA: Chemical Engineering Research Articles

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Comparative Study of Maceration and Ultrasonic Techniques in Coffee Oil Extraction Based on Energy Evaluation and Mass Transfer Value Mustikaningrum, Mega; Yulianto, Mohamad Endy; Prasakti, Laras
CHEESA: Chemical Engineering Research Articles Vol. 7 No. 1 (2024)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v7i1.19326.47-56

Abstract

Coffee is a significant commodity trend, with numerous coffee shops rapidly established in Indonesia. The development of this industry has led to an increased discharge of coffee grounds into the environment. The discarded grounds contain oil which can be optimized using various methods and serve as a raw material for biodiesel. Therefore, this study aimed to compare the maceration and ultrasonic methods of extracting coffee grounds. The comparison focused on yield, mass transfer value (diffusivity), and extraction speed constant based on the proposed mathematical model. The results showed a yield of 12.1% and 16%, for the maceration and ultrasonic methods, respectively. Diffusivity value was registered at 9.99 x 10-11 m2/min and 9.8 x 10-10 m2/min, while extraction speed constant values were discovered to be 0.2 m/min and 1.798 m/min, respectively. Additionally, the energy evaluation of ultrasonic extraction produced a Gibbs energy value of -3765.72 Joules.
Co-Authors Agus Prasetya Agus Prasetya Anton Sujarwo Anton Sujarwo, Anton Arief Budiman Arief Budiman Billy Dion Yogihaz Lukman Subekti Lukman Subekti Martomo Setyawan Martomo Setyawan Mohamad Endy Y Yulianto Muhammad Fajar Setiaji Muhammad Hartono Mustikaningrum, Mega Pandu Prabowo Jati Panut Mulyono Panut Mulyono Pradana, Yano Surya Rochmadi Rochmadi Sang Kompiang Wirawan Sarah Nabila Salma Satryo Dewanto Suryohendrasworo Sudibyo, Hanifrahmawan Sutijan Sutijan Sutijan Yano Surya Pradana Yogihaz, Billy Dion