Extraction and Separation of Fucoidan from Laminaria japonica with Chitosan as Extractant

Table 1

Yields and fucoidan content of extraction of different extractants.

Extractant	Yield (%)△	Fucoidan content (%)*
Chitosan	1.68±0.02	5.51±0.03
HACC	1.59±0.05	5.89±0.02
CPAB	0.32±0.03	2.05±0.03

△Fucoidan to dry algae. Usually the yield of fucoidan is 1-2% with the method of alkali extraction. Yield of fucoidan means extraction amount of fucoidan from the dry algae.
*12 mL extractant was used to extract fucoidan, and the extract production was suspended in 50 mL 4 mol/L NaCl. Fucoidan content means the % of fucoidan released to the aqueous solvent after breaking the complexes.