Nutraceutical Potential of Five Mexican Brown Seaweeds
Table 4
Fragments adducts, λ max, and molar mass of most abundant phlorotannins identified by HPLC-DAD and HPLC-MS-TOF methodologies for the hydroethanolic extracts of seaweeds collected from Baja California.
Peak#
1
2
3
4
Bioactive compound
Phloretol
Fucophlorethol
Two units of phloroglucinol
Three units of phloroglucinol
λ max (nm)
220, 262
220, 270
220, 268
220, 267
Molar mass
274.1231
374.0555
252.0809
378.1241
Fragment adducts (m/z)
275.1299 M + H, 276.134 M + H + 1 297.1118 M + Na 313.0888 M + K
375.0627 M + H, 376.0679 M + H + 1 377.0613 M + H + 2
253.0876 M + H 254.0904 M + H + 1 275.0719 M + Na
190.0693 M + 2H 190.5667 M + 2H + 1
μg phloroglucinol equivalents ml−1 extract
Silvetia compressa
19.1 ± 1.5a
71.2 ± 2.5d
480.9 ± 4.7c
152.7 ± 3.2d
Cystoseira osmundacea
37.1 ± 2.1b
24.8 ± 0.8b
29.9 ± 2.1a
14.6 ± 1.4a
Ecklonia arborea
37.1 ± 0.5b
25.1 ± 1.0b
NF
117.5 ± 4.7c
Pterygophora californica
13.2 ± 2.8a
14.5 ± 1.1a
36.0 ± 1.8a
38.8 ± 3.1b
Egregia mensienzii
42.3 ± 2.6b
30.7 ± 1.1c
113.6 ± 2.4b
45.5 ± 1.2b
References
2
1
3
3
F values
52.5
346.9
5034.7
478.9
Sig. ANOVA
<0.001
<0.001
<0.001
<0.001
1Isaza Martínez and Torres Castañeda [21]; 2Steevensz et al. [20]; 3Tierney et al. [22]. NF: not found.
