Setya, Rizkhi Agrinda (2011) Identifikasi Biohidrogen Secara Fermentatif dengan Kultur Campuran menggunakan Glukosa sebagai Substrat. Other thesis, Institut Teknologi Sepuluh Nopember.
|
Text
1407100020-Undergraduate_Thesis.pdf Restricted to Repository staff only Download (4MB) |
Abstract
Pada penelitian ini telah dilakukan identifikasi biohidrogen secara fermentatif dari kultur campuran, dengan menggunakan glukosa sebagai substrat. Fermentasi dilakukan dengan sistem batch dan kondisi anaerob selama 50 jam dengan menggunakan glukosa 2% pada suhu 37°C dengan menjaga pH sekitar 5-6 dan dimonitor setiap 3 jam. Volume gas yang dihasilkan dihitung dengan sistem pemindahan air. Reaksi gula dianalisis dengan DNS (asam 3,5-dinitrosalisilat) dan jumlah sel dengan metode turbidimetri. Uji kualitatif menggunakan asetat hidrogen untuk menunjukkan adanya gas hidrogen. Hasil penelitian didapatkan bahwa produksi biohidrogen pada konsentrasi substrat 2% dengan kadar hidrogen sebesar 13,3% menghasilkan kromatografi gas dari volume total biogas 970 mL, H₂ kumulatif sebanyak 129,01 mL dan menyisakan glukosa 2,25 g/L. Hasil identifikasi strain dari kultur campuran menunjukkan bahwa yang berperan dalam produksi hidrogen adalah Bacillus cereus.
===================================================================================================================================
Identification of fermentative biohydrogen by mixed culture, using glucose as a substrate has been conducted in this research. Fermentation carried out with batch systems and anaerobic conditions for 50 hours with 2% glucose at 37°C by keeping the pH around 5-6 and monitored every 3 hours. The resulting gas volume was calculated by water displacement system. Sugar reduction was analyzed by DNS (3,5-dinitrosalicylic acid) and the amount of cells with turbidimetric method. Qualitative test using hydrogen acetate to indicated the presence of H₂. The study reported that the production biohydrogen at substrate concentration of 2% with hydrogen content of 13.3% was obtained from total biogas volume of 970 mL, volume of 129.01 mL of H₂ cumulative and leaving glucose 2.25 g/L. The results of identified strains from mixed cultures showed that the Bacillus cereus role in hydrogen production.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKi 665.81 Set i |
| Uncontrolled Keywords: | Biohidrogen, fermentasi, kultur campuran, glukosa, Bacillus cereus, kromatografi gas, Biohydrogen, fermentation, mixed culture, glucose, Bacillus cereus, gas chromatography. |
| Subjects: | Q Science > QD Chemistry > QD481 Chemical structure. |
| Divisions: | Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | magang . |
| Date Deposited: | 15 Oct 2026 03:29 |
| Last Modified: | 15 Oct 2026 03:29 |
| URI: | http://repository.its.ac.id/id/eprint/145602 |
Actions (login required)
![]() |
View Item |
