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Emulsifying activity of DR25, DR46 and DR90 at various pH a.
| pH Value | S-200 | Xylene | Cyclohexanone | ||||||
|---|---|---|---|---|---|---|---|---|---|
| DR25 | DR46 | DR90 | DR25 | DR46 | DR90 | DR25 | DR46 | DR90 | |
| 5.5 | + | + | + | + | + | + | - | - | - |
| 7.0 | ++ | ++ | ++ | ++ | ++ | ++ | - | - | - |
| 8.5 | +++ | +++ | +++ | +++ | +++ | +++ | - | - | - |
a The rhamnolipids solutions were used at the concentration of 10 g/L. Note: Emulsification effect evaluation. - No emulsification ability; + Unstable; ++ Emulsification stable; +++ Emulsification fine and stable.
