Table 5.
Quantification of pigment content in the total ethanolic extracts of Skeletonema marinoi, Skeletonema grethae, Skeletonema subsalsum, and Skeletonema menzelii, expressed as milligrams per gram of freeze-dried biomass. Pigment analysis was conducted using the HPLC-UV/DAD Van Heukelem reference dereplication method. The Skm strain employed in this study demonstrated a notable ability to biosynthesize pheophorbide a.
|
S. marinoi IFR-855 |
S. grethae CCAP 1077/3 |
S. subsalsum SAG 8.94 |
S. menzelii CCMP 787 |
|
|---|---|---|---|---|
| Chlorophyll c2 | 0.36 | 0.20 | 0.05 | 0.56 |
| Chlorophyll c1 | 0.17 | 0.12 | 0.03 | Undetected |
| Chlorophyll a | 2.49 | 3.22 | 6.36 | 5.05 |
| Pheophorbide a | 5.94 | 0.50 | Undetected | Undetected |
| cis-Fucoxanthin | 0.06 | Undetected | 0.05 | 0.12 |
| All Trans-Fucoxanthin | 1.98 | 1.52 | 1.73 | 4.64 |
| Diadinoxanthin | 0.07 | 0.36 | 0.73 | 0.63 |
| Diatoxanthin | 1.18 | 0.18 | 0.49 | 0.49 |
| Violaxanthin | Undetected | Undetected | 0.02 | Undetected |
| Zeaxanthin | 0.10 | 0.04 | 0.04 | Undetected |
| β-Carotene | 0.33 | 0.16 | 0.20 | 0.15 |