Nutraceutical Potential of Five Mexican Brown Seaweeds
Table 3
Antioxidant activities and half maximal inhibitory concentrations of hydroethanolic seaweed extracts against α-amylase and α-glucosidase.
Hydroethanolic extract
DPPH IC50 mg mL−1
ORAC mmol TE g−1
α-Amylase IC50μg mL−1
α-Amylase IC10μg mL−1
α-Glucosidase IC50μg mL−1
α-Glucosidase IC10μg mL−1
S. compressa
3.73 ± 0.11c
0.817 ± 0.07c
940.1 ± 8.3a
240
194.2 ± 16.1a
40
C. osmundacea
4.20 ± 0.36c
0.257 ± 0.01a
>1200
2000
>1200
105
E. arborea
1.67 ± 0.15b
0.801 ± 0.03c
1152 ± 19.9b
840
646.8 ± 0.7b
65
P. californica
8.07 ± 0.50d
0.542 ± 0.05b
>1200
170
>1200
105
E. menziesii
0.93 ± 0.12a
0.192 ± 0.01a
>1200
920
>1200
420
Acarbose
—
—
152.9
184.1
F value
269.2
218.3
596.7
3148.3
Sig. ANOVA
<0.001
<0.001
<0.001
<0.001
PGE: phloroglucinol equivalents; DS: dry seaweed; TE: Trolox equivalents; IC50: the half maximal inhibitory concentration. Each value represents the average of three analytical replicates with standard deviation. Different letters (down column) represent significant differences at .