| Substrate / Carbon source used |
Biosurfactant type |
Producer strain |
Finding |
References |
| Absolute ethanol |
Heteropolysaccharide bioemulsifier |
Acinetobacter calcoaceticus RAG-1 |
Emulsan acts as substrate for esterase enzyme |
[Shabtai and Gutnick, 1985] |
Ethanol or
Sodium acetate or Hexadecane or Crude oil |
Heteropolysaccharide bioemulsifier |
Acinetobacter calcoaceticus RAG-1 |
Emulsan producing RAG-1 capable of growing whereas emulsan deficient mutant failed to grow on crude oil |
[Pines and Gutnick, 1986] |
| Glucose |
Mannoprotein emulsifier |
Saccharomyces cerevisiae |
Mannoprotein acting as effective bioemulsifier |
[Cameron et al, 1988] |
| Glucose or ethanol |
Heteropolysaccharide bioemulsifier |
Acinetobacter calcoaceticus RAG-1 |
Esterase coding gene from RAG-1 cloned-expressed in E.coli. E.coli able to grow on triglycerides such as TAC. |
[Reddy et al, 1989] |
| Sodium acetate |
Polysaccharide |
Acinetobacter radioresistens KA53 |
Protein moiety essential for structure and emulsifying activity of bioemulsifier, alasan |
[Navon-Venezia et al, 1995] |
| Absolute ethanol |
Heteropolysaccharide bioemulsifier |
Acietobacter venetianus RAG-1 |
Exocellular protein esterase enhances emulsifying activity of emulsan. Deproteinized product, apoemulsan, failed to form/stabilize oil-water emulsions. |
[Bach et al, 2003] |
| Ethanol |
Heteropolysaccharide bioemulsifier |
Acietobacter venetianus RAG-1 |
his-tagged recombinant from RAG-1 formed hexadecane-in-water emulsions with 18 different polysaccharides |
[Bach and Gutnick, 2006] |
| Olive oil |
Lipopeptide |
Bacillus sp.SK320 |
Esterase and biosurfactant activity exhibiting Bacillus sp. and its recombinant, capable of emulsifying olive oil completely |
[Khanna et al, 2009] |
| Olive oil |
Lipopeptide |
Bacillus sp.SK320 |
Enhanced biosurfactant production through cloning of three genes and role of esterase in biosurfactant release |
[Sekhon et al, 2011] |
