Table 3.

The 3D cell culture results: summary of IC₅₀ and IC₅₀ ranges in seaweed extracts obtained at 6 days of treatment in U-251MG cells.

Sample	6 Days
	IC50 Value (µg/mL)	IC50 Range
C.L.	8.583	7.639 to 9.644
M.L.	10.82	9.991 to 11.71
S.L.	30.00	24.60 to 36.60
C.F.	7.237	6.625 to 7.906
M.F.	18.98	16.58 to 21.73
S.F.	33.51	27.01 to 41.56

Seaweed samples used for study were crude laminarin (C.L.), MWCO 10 kDa laminarin fraction (M.L.), Sigma laminarin standard (S.L.), crude fucoidan (C.F.), MWCO 10 kDa fucoidan fraction (M.F.), and Sigma fucoidan standard (S.F.).