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. 2022 May 26;11(6):1055. doi: 10.3390/antiox11061055

Table 2.

Extraction mass yield and total phlorotannin content (TPhC) of S. vulgare crude extract and purified fractions.

Sample Yield (%) TPhC (mg PGE/g ext)
Crude extract 25.9 ± 0.80 b 4.7 ± 0.11 b
Hex 10.8 ± 2.57 d 0.4 ± 0.02 c
EtOAc 6.1 ± 1.11 c 9.4 ± 0.03 a
AQ 63.0 ± 2.20 a 0.8 ± 0.2 c

Yield is expressed as w/w of dry algae (for crude extract) or of crude extract (for purified fractions). PGE—phloroglucinol equivalents; Hex—hexane fraction; EtOAc—ethyl acetate fraction; AQ—aqueous residue. Data expressed as means ± standard deviations. Different letters within a column indicate significant differences with p < 0.05 using Tukey’s test.