Table 1 Correlation between FTIR spectra and functional groups detected in biosurfactants produced by L. jensenii P6A and L. gasseri P65
Absorbance range (cm−1) | Functional groups detected |
|---|---|
Below 1000 | OH deformation vibrations/CN |
1000–1300 | C–O sugar stretching |
1400–1460 | C–H vibrations of groups CH2 e CH3 |
1520 | Groups N–H in proteins |
1725–1675 | C=O stretching of carbonyl group |
3200–3600 | OH and NH stretching |