Susetyo, Rizky Danang and Retnaningrum, Endah and Wilopo, Wahyu and Hadisusanto, Suwarno and Salamun, Salamun and Ni’matuzahroh, Ni'matuzahroh and Fatimah, Fatimah (2024) Combination of Mollase and Glucose as Substrate for The Production of Biosurfactant by Bacillus subtilis BK7.1. In: The 5th International Conference on Life Sciences and Biotechnology (ICOLIB 2023).
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Abstract
Biosurfactant is a secondary metabolite which has properties and structures such as surfactants that are able to decrease surface tension water and cause microsolubilization or emulsification. Biosurfactants are active compounds that are produced at the microbial cell surface or excreted especially Bacillus. Previous research reported that B. subtilis BK7.1 had ability to form biosurfactant. In this study, B. subtilis BK7.1 produced biosurfactant using a combination of molasse and glucose as a carbon source. The purpose of study was characterized biosurfactant from B. subtilis BK7.1 by counting the emulsification index and the surface tension of supernatant, calculating (CMC) value, and examining stability of biosurfactant. B. subtilis BK7.1 could produce the biosurfactant from molasse and glucose with CMC value was about 4 g/L. Biosurfactant of B. subtilis BK7.1 could reduce the surface tension of medium from 54.68 to 49.2 mN/m, emulsify kerosene around 15.8, had temperature stability in the range of 270C to
Item Type: | Conference or Workshop Item (Paper) |
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Additional Information: | Cited by: 0; All Open Access, Gold Open Access |
Subjects: | Q Science > QH Natural history > QH301 Biology |
Divisions: | Faculty of Biology > Doctoral Program in Biology |
Depositing User: | Rusna Nur Aini Aini |
Date Deposited: | 14 Oct 2024 03:28 |
Last Modified: | 14 Oct 2024 03:28 |
URI: | https://ir.lib.ugm.ac.id/id/eprint/6501 |