Niken, Hermin Efendi (2026) Kinetika Reaksi Hidrolisis Asam dalam Pembuatan Glukosa dari Limbah Dedak Padi. Undergraduate thesis, UPN VETERAN JAWA TIMUR.
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Abstract
Rice bran is an agro-industrial by-product containing polysaccharides that can be converted into glucose through the hydrolysis process. The utilization of rice bran as a glucose source can increase the added value of agricultural waste while providing a renewable feedstock for various industries. To optimize the hydrolysis process, a kinetic study is required to determine the reaction rate parameters, optimum operating conditions, and provide a basis for reactor design and scale-up. This study aimed to determine the kinetic parameters of rice bran hydrolysis using 0.5 N hydrochloric acid (HCl) as the catalyst. Hydrolysis was carried out at a rice bran-to-HCl solution ratio of 1:6 (w/v), with reaction temperatures of 55, 65, 75, 85, and 95°C and reaction times ranging from 80 to 120 min. Glucose concentration was analyzed using a Brix refractometer, while the kinetic parameters were determined through reaction order analysis and the Arrhenius equation. The results showed that glucose concentration increased with increasing reaction temperature and hydrolysis time. The highest glucose concentration of 14.09% (w/v) was obtained at 95°C after 120 min of hydrolysis. Kinetic analysis indicated that the hydrolysis reaction followed a pseudo-first-order kinetic model, with the highest coefficient of determination (R²) of 0.9466, a maximum reaction rate constant of 0.0032 min⁻¹ at 95°C, and an activation energy of 21.0239 kJ mol⁻¹. These kinetic parameters can serve as a basis for the design and scale-up of batch reactors or Continuous Stirred Tank Reactors (CSTRs) for glucose production from rice bran through acid hydrolysis.
| Item Type: | Thesis (Undergraduate) | ||||||||||||
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| Subjects: | T Technology > TP Chemical technology > TP155 Chemical engineering | ||||||||||||
| Divisions: | Faculty of Engineering > Departement of Chemical Engineering | ||||||||||||
| Depositing User: | NIKEN HERMIN EFENDI | ||||||||||||
| Date Deposited: | 31 Aug 2026 03:44 | ||||||||||||
| Last Modified: | 31 Aug 2026 05:06 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/58799 |
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