Table 5 Preference for different hydrophobic substrates of various bioemulsifiers
Emulsifier | Component | Molecular weight | Hydrophobic substrate specificity | |||||
|---|---|---|---|---|---|---|---|---|
Diesel | Soybean oil | Lubricating oil | Aliphatic (< C8) | Aliphatic (C10 < C18) | Aromatic | |||
AXE | Protein | 35.6 kDa | +++ | ++ | ++ | +++ | + | +++ |
PhaP | Protein | 14.6 kDa | +++ | +++ | +++ | NA | NA | NA |
PhaR | Protein | 25 kDa | +++ | +++ | +++ | NA | NA | NA |
RAG-1 Emulsan | Polysaccharide-protein | 980 kDa | +++ | NA | NA | – | – | – |
Alasan | Polysaccharide-protein | 1 MDa | NA | + | NA | + | +++ | + |
AlnA | Protein | 35.7 kDa | NA | NA | NA | + | ++ | NA |
Ps-bioemulsifier | Polysaccharide-protein | NA | +++ | NA | NA | + | ++ | +++ |