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 IC50 μg mL^−1	α-Amylase IC10 μg mL^−1	α-Glucosidase IC50 μg mL^−1	α-Glucosidase IC10 μg 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 .