Table 2.
The chemical formula, molecular mass, and type of the sophorolipid (SL) homologues produced by Rhodotorula babjevae YS3 (SL-YS3), along with the sophorolipid standard, 1,4′′-sophorolactone 6′,6′′-diacetate (SL-S) as determined by LC–MS (LS lactonic SL, AS acidic SL, Ac acetyl group)
| Homologue | Formula | Molecular mass | Type of SL | Source |
|---|---|---|---|---|
| AS-C11 | C22H42O13 | 514.56 | Acidic | SL-YS3 |
| LS-C13:1 | C25H42O12 | 534.59 | Lactonic | SL-YS3 |
| AS-C13:1 | C25H44O13 | 552.61 | Acidic | SL-YS3 |
| LS-C15:3 | C27H46O12 | 562.65 | Lactonic | SL-YS3 |
| LS-C16 | C28H50O12 | 578.69 | Lactonic | SL-YS3 |
| LS-C18:2 | C30H50O12 | 602.71 | Lactonic | SL-YS3 |
| Ac2LS-C18:1 | C34H56O14 | 688.80 | Lactonic | SL-S |
| Ac2LS-C18 | C34H58O14 | 690.81 | Lactonic | SL-YS3, SL-S |
LS lactonic SL, AS acidic SL, Ac acetyl group. SL-YS3 = Sophorolipid by Rhodotorula babjevae YS3, SL-S = sophorolipid standard, 1,4′′-sophorolactone 6′,6′′-diacetate