Rani, Ruby Cantika (2026) Kajian Kinetika dan Analisis Eksergi pada Pengeringan Biji Kakao berbagai Variasi Suhu. Undergraduate thesis, Politeknik Negeri Jember.
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Abstract
Cocoa bean drying is a crucial stage in post-harvest handling because it significantly determines the final product quality, particularly moisture content, flavor, aroma, color, and shelf life. Traditional drying processes that rely on sunlight often lead to quality inconsistencies due to weather changes and poor temperature control. The use of a food dehydrator is a more effective alternative because it can provide more stable and controlled drying conditions. Variations in drying temperature at 50°C, 60°C, and 70°C significantly affected the drying rate and energy efficiency. Drying time at 50°C reached 315 minutes, at 60°C for 175 minutes, and at 70°C for 160 minutes. Based on the evaluation of the mathematical model of drying kinetics using the R², SSE, RMSE, AIC, and BIC criteria, the Lewis Model provided the best performance. The highest R² value of 0.9950, the lowest SSE of 0.1020, the smallest RMSE of 0.3487, AIC of −455.1637, and BIC of −452.9158 were obtained at Tray 2 at 50°C. Overall, the drying temperature of 60°C was determined as the most optimal condition because it provided the best balance between adequate drying rate, high effective moisture diffusivity value, better exergy efficiency, and the ability to maintain the physical quality and bioactive compounds of cocoa beans.
| Item Type: | Thesis (Undergraduate) | ||||||
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| Uncontrolled Keywords: | Biji kakao, food dehydrator, kinetika pengeringan, eksergi | ||||||
| Subjects: | 100 - Rumpun Matematika dan Ilmu Pengetahuan Alam (MIPA) > 120 - Matematika > 121 - Matematika 140 - Rumpun Ilmu Tanaman > 150 - Ilmu Pertanian dan Perkebunan > 154 - Budidaya Pertanian dan Perkebunan 410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 432 - Teknik Produksi (dan Atau Manufakturing) 410 - Rumpun Ilmu Teknik > 430 - Ilmu Keteknikan Industri > 443 - Teknik Enerji |
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| Divisions: | Jurusan Teknologi Pertanian > Prodi D4 Teknologi Rekayasa Pangan > Tugas Akhir | ||||||
| Depositing User: | Ruby Cantika Rani | ||||||
| Date Deposited: | 24 Jun 2026 01:32 | ||||||
| Last Modified: | 24 Jun 2026 02:01 | ||||||
| URI: | https://sipora.polije.ac.id/id/eprint/56825 |
Available Versions of this Item
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Kajian Kinetika dan Analisis Eksergi pada Pengeringan Biji Kakao berbagai Variasi Suhu. (deposited 24 Jun 2026 01:22)
- Kajian Kinetika dan Analisis Eksergi pada Pengeringan Biji Kakao berbagai Variasi Suhu. (deposited 24 Jun 2026 01:32) [Currently Displayed]
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