Kinetic study and modeling of biosurfactant production using Bacillus sp. |
| |
| Institution: | 1. Department of Agro-industrial Technology, Faculty of Agriculture, Lambung Mangkurat University, Banjarbaru, Kalimantan Selatan 70714, Indonesia;2. Department of Chemical Engineering, Faculty of Engineering, Lambung Mangkurat University, Banjarbaru, Kalimantan Selatan 70714, Indonesia |
| |
| Abstract: | BackgroundSurfactants are one of the most important raw materials used in various industrial fields as emulsifiers, corrosion inhibitors, foaming agents, detergent products, and so on. However, commercial surfactant production is costly, and its demand is steadily increasing. This study aimed to evaluate the performance of typical strains of Bacillus sp. to produce biosurfactants through fermentation. It also included the investigation of the effect of initial glucose concentration and the carbon to nitrogen ratio.ResultsThe biosurfactant yield was in the range of 1–2.46 g/L at initial glucose concentrations of 10–70 g/L. The optimum fermentation condition was achieved at a carbon to nitrogen ratio of 12.4, with a decrease in surface tension of up to 27 mN/m.ConclusionsFor further development and industrial applications, the modified Gompertz equation is proposed to predict the cell mass and biosurfactant production as a goodness of fit was obtained with this model. The modified Gompertz equation was also extended to enable the excellent prediction of the surface tension. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
