Table 1.
Colour coordinates (L*, a*, b*) of the lyophilized ground algae samples of different specimens and their extracts.
| Algal Extract Sample | Colour Coordinates, NBS | ||||||
|---|---|---|---|---|---|---|---|
| Algal Extract Samples | Lyophilised Algal Samples | ||||||
| a* | b* | L* | a* | b* | L* | ||
| Macroalgae | Cla | −8.67 ± 0.19 b,C | 16.21 ± 0.11 c,C | 32.06 ± 0.25 a,A | −1.60 ± 0.02 b,E | 5.09 ± 0.04 b,C | 47.66 ± 0.20 a,C |
| Furc | −5.49 ± 0.14 c,E | 14.38 ± 0.13 a,A | 50.19 ± 0.31 c,F | 1.32 ± 0.03 c,F | 4.49 ± 0.03 a,B | 47.54 ± 0.15 a,C | |
| Ul | −9.68 ± 0.16 a,B | 28.87 ± 0.16 f,F | 42.04 ± 0.27 b,C | −3.52 ± 0.02 a,D | 11.08 ± 0.10 c,D | 47.75 ± 0.17 a,C | |
| Microalgae | Chlo | −7.97 ± 0.12 b,D | 23.08 ± 0.19 e,E | 46.61 ± 0.25 b,D | −7.93 ± 0.11 a,A | 27.29 ± 0.03 c,F | 43.93 ± 0.19 b,B |
| Sp1 | −2.10 ± 0.09 c,F | 21.93 ± 0.18 d,D | 47.07 ± 0.19 c,E | −5.49 ± 0.04 c,C | 14.38 ± 0.11 b,E | 50.19 ± 0.23 c,D | |
| Sp2 | −13.41 ± 0.14 a,A | 15.47 ± 0.13 b,B | 37.40 ± 0.21 a,B | −6.56 ± 0.05 b,B | 1.83 ± 0.13 a,A | 39.98 ± 0.18 a,A | |
Cla, Cladophora rupestris; Ul, Ulva intestinalis; Furc, Furcellaria lumbricalis; Chlo, Chlorella vulgaris; Sp1, Spirulina (Arthrospira platensis) multiplied in the laboratory; Sp2, Spirulina (Ltd. “Spila“); L*, lightness; a*, redness or −a*, greenness; b*, yellowness or −b*, blueness; NBS, National Bureau of Standards units; data are represented as means (n = 3, replicates of analysis) ± SD. a–f for the same analytical parameters, in macro- and microalgae groups, means with different letters are significantly different (p ≤ 0.05). A–F for the same analytical parameters, in all algal samples, means with different letters are significantly different (p ≤ 0.05).