Wardoyo, Berlyan Oktaviona Kusuma and Alamsyah, M. Fajar (2026) Produksi Bioetanol Melalui Separated Hydrolysis And Fermentation (SHF) Dengan Hidrolisis Asam Pada Substrat Jerami Padi Dengan Variasi Penambahan Co-Substrat Onggok. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Bioetanol merupakan sumber energi terbarukan yang dapat diproduksi menggunakan biomassa lignoselulosa seperti jerami padi dan limbah pati seperti ampas singkong atau onggok. Tujuan penelitian ini adalah untuk mengetahui bagaimana pengaruh konsentrasi asam yang digunakan selama hidrolisis akan memengaruhi kadar gula reduksi dan kadar etanol, serta dampak onggok sebagai ko-substrat terhadap kedua indikator tersebut. Sebagai metode, digunakan teknik Hidrolisis dan Fermentasi Terpisah (SHF), di mana hidrolisis asam dilakukan untuk mengubah biomassa menjadi gula sederhana dan fermentasi untuk menghasilkan etanol. Hasil menunjukkan bahwa peningkatan konsentrasi asam dalam proses hidrolisis meningkatkan kadar gula reduksi, sehingga jumlah etanol akan meningkat selama fermentasi. Selain itu, penggunaan onggok sebagai ko-substrat memberikan efek positif terhadap peningkatan kadar gula reduksi dan etanol. Hasil tertinggi diperoleh pada penambahan co substrat jerami padi dan onggok adalah 0:1 (gula reduksi) dan 1:1 (kadar etanol) dengan konsentrasi asam dan 2N, dengan kadar gula reduksi dan etanol tertinggi masing-masing sebesar 129,88 g/L dan 4,25%.
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Bioethanol is a renewable energy source that can be produced using lignocellulosic biomass, such as rice straw, and starch waste, such as cassava pulp or onggok. The objective of this study was to determine how the concentration of acid used during hydrolysis affects the levels of reducing sugars and ethanol, as well as the impact of onggok as a co-substrate on these two indicators. The Separate Hydrolysis and Fermentation (SHF) technique was employed, in which acid hydrolysis is performed to convert biomass into simple sugars, followed by fermentation to produce ethanol. The results showed that increasing the acid concentration during hydrolysis raised the reducing sugar content, thereby increasing the amount of ethanol produced during fermentation. Additionally, the use of cassava pulp as a co-substrate had a positive effect on increasing both the reducing sugar and ethanol contents. The highest results were obtained when rice straw and cassava pulp were added as co-substrates in a 0:1 (reducing sugars) and 1:1 (ethanol content) ratio with a 2N acid concentration, yielding the highest reducing sugar and ethanol levels of 129.88 g/L and 4.25%, respectively.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Bioetanol, Jerami Padi, Hidrolisis Asam, Gula Reduksi Bioethanol, Rice Straw, Acid Hydrolysis, Reducing Sugars |
| Subjects: | T Technology > TP Chemical technology T Technology > TP Chemical technology > TP339 Ethanol as fuel. Biomass energy. |
| Divisions: | Faculty of Vocational > 24305-Industrial Chemical Engineering |
| Depositing User: | M. Fajar Alamsyah |
| Date Deposited: | 31 Jul 2026 03:51 |
| Last Modified: | 31 Jul 2026 03:51 |
| URI: | http://repository.its.ac.id/id/eprint/140480 |
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