| Autor: | Sung-Taik Lee, Detlef Schulze, Rainer Fiebig, Jae-Chun Chung |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
education.field_of_study
Environmental Engineering food.ingredient biology Chemistry Sunflower oil Population Bioengineering Biodegradation biology.organism_classification Pollution Microbiology Glycolipid food Bioremediation Pulmonary surfactant Environmental Chemistry Fermentation Food science education Bacteria |
| Zdroj: | Biodegradation. 8:67-75 |
| ISSN: | 0923-9820 |
| DOI: | 10.1023/a:1008256110136 |
| Popis: | A bioemulsifier excreting bacterium of the species Peudomonas cepacia was isolated after a screeningprocedure using n-dodecane as carbon source. Thepartly purified bioemulsifier was preliminarily identifiedas a mixture of glycolipids. A decrease of the surfacetension to 37 mN/m and a CMC of 5 mg/l could bemeasured with the bioemulsifier GL-K12. Usingsunflower oil as main carbon source, up to 7.1 g/lbioemulsifier could be produced in oxygen and nitrogenlimited fermentations on a scale of 300 l. Thebiodegradation of Aroclor 1242 in liquid cultures by abacterial mixed population was enhanced by GL-K12when added at biosurfactant concentrations of 0.2 g/l ormore. The most positive effect was noted in thedegradation of PCB congeners with 3 Cl atoms with anincrease of up to 100%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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