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. 2009 Feb;10(2):147–153. doi: 10.1631/jzus.B0820185

Table 2.

Total phlorotannin contents and the antihyaluronidase activity of the crude extracts along with the positive controls*

Marine algae C (%)a IC50 (μg/ml)b
Sargassum graminifolium turn 1.71±0.16 133.70±5.40
Sargassum thunbergii 0.74±0.19 268.66±7.05
Laminaria japonica 0.97±0.19 147.91±2.73
Sargassum cervicorne 3.30±0.20 109.49±1.75
Sargassum tennerimum 5.06±0.24 20.97±0.16
DSCG (positive control)c 38.60±0.49
Catechin (positive control)d 19.98±0.14
*

All the analytical data are the means (±SD) of three determination

a

Total phlorotannin content of the residual extract on dry weight basis determined by Folin-Ceocalteu’s method;

b

IC50 was calculated using the mean of three observations from each of the five concentrations for all the samples including the positive controls DSCG and catechin;

c

The antiallergic drug used as positive control;

d

The natural polyphenol used as positive control;