Bioemulsifier production by Bacillus stearothermophilus VR-8 isolate
| العنوان: | Bioemulsifier production by Bacillus stearothermophilus VR-8 isolate |
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| المؤلفون: | M.I. Khan, M. Gurjar, J. M. Khire |
| المصدر: | Letters in Applied Microbiology. 21:83-86 |
| بيانات النشر: | Oxford University Press (OUP), 1995. |
| سنة النشر: | 1995 |
| مصطلحات موضوعية: | chemistry.chemical_classification, Bacillaceae, biology, Chemistry, Salt (chemistry), Carbohydrate, biology.organism_classification, Applied Microbiology and Biotechnology, Bacillales, chemistry.chemical_compound, Hydrocarbon, Biochemistry, Acetone, Food science, Enhanced oil recovery, Benzene |
| الوصف: | Bacillus stearothermophilus produced an extracellular bioemulsifier during growth in a medium containing 4% crude oil. Over the temperature range of 45° to 70°C, maximum recovery (0.6 g l -1 ) occurred at 50°C. The emulsifier had its greatest activity on benzene, among the hydrocarbons tested. Acetone precipitated, dialysed emulsifier contained 46% protein, 16% carbohydrate and 10% lipid. The emulsification activity was stable over a broad range of temperature (50-80°C), pH (2-8) and salt concentration (5% NaCl, 5% CaCl 2 and 1% MgCl 2 ). Thus, this emulsifier was found to be better than liposan (showing emulsifying activity between pH 2-5 and stable up to 70°C) in terms of pH and temperature stability. Additionally, it was also salt tolerant, suggesting its potential use in crude oil tank clean-up and enhanced oil recovery. |
| تدمد: | 1472-765X 0266-8254 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::df499fe532e2413ff4fe63ef236e9772Test https://doi.org/10.1111/j.1472-765x.1995.tb01012.xTest |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi...........df499fe532e2413ff4fe63ef236e9772 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 1472765X 02668254 |
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