Yonidwita, Ciccyliona Deavinsa (2012) Pengaruh pH terhadap Produksi Biosurfaktan oleh Bakteri Pseudomonas aeruginosa Lokal. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Penelitian ini dimaksudkan untuk mengetahui pada pH medium berapa yang dapat mempengaruhi produksi biosurfaktan untuk mencapai optimasi dalam mengasilkan biosurfaktan. Fase stasioner diperoleh setelah fermentasi 20 jam. Biosurfaktan yang dihasilkan maka dilakukan uji aktivitas emulsifikasi dengan menggunakan hidrokarbon uji berupa oli, minyak tanah, dan n-heksana. Hasil uji aktivitas emulsifikasi menunjukkan pada variabel pH 6,0-8,0 dengan kondisi optimum produksi biosurfaktan terjadi pada pH 8,0. Setelah dilakukan isolasi dari hasil produksi biosurfaktan diperoleh biosurfaktan seberat 0,033 gram/liter medium cair.
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This research is intended to find out how the medium pH can affect the production of biosurfactan to reach optimization in produce biosurfactan. Stationary phase of fermentation obtained after 20 hours. To know biosurfactan produced, the emulsification activity assay performed by using hydrocarbon such as lubricating oil, kerosene and n-heksana. The result of emulsification activity assay indicated at variable of pH 6,0-8,0 with optimum conditions for production of biosurfactan occurred at pH 8,0. After isolation of the production results of biosurfactan obtained 0,033 g/L liquid medium.
| Item Type: | Thesis (Other) |
|---|---|
| Additional Information: | RSKi 668.1 Yon p |
| Subjects: | Q Science > QD Chemistry > QD481 Chemical structure. |
| Divisions: | Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis |
| Depositing User: | magang . |
| Date Deposited: | 19 Oct 2026 06:34 |
| Last Modified: | 19 Oct 2026 06:34 |
| URI: | http://repository.its.ac.id/id/eprint/145672 |
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