Microwave-assisted extraction of sulfated polysaccharides (fucoidan) from brown seaweed

Publication year: 2011
Source: Carbohydrate Polymers, In Press, Accepted Manuscript, Available online 13 June 2011

Rosa M., Rodriguez-Jasso , Solange I., Mussatto , Lorenzo, Pastrana , Cristóbal N., Aguilar , José A., Teixeira

Sulfated polysaccharides (fucoidan) were recovered from brown seaweed Fucus vesiculosus by microwave-assisted extraction (MAE). Different conditions of pressure (30 to 120 psi), extraction time (1 to 31min), and alga/water ratio (1/25 to 5/25gml−1) were evaluated during this process aiming to establish a condition to maximize the extraction results. The alga degradation (%), total sugar yield (%), and SO3 content (%) were also determined to each experimental condition. All the studied variables presented significant (p<0.05) influence on fucoidan yield. MAE at 120 psi, 1min, using 1g alga/25ml water was the best condition for the fucoidan recovery. L-fucose was the main constituent...

 Highlights: ► ► Fucoidan was recovered from brown seaweed by microwave-assisted extraction. ► Pressure, extraction time, and alga/water ratio affected the fucoidan yield. ► Extraction conditions able to maximize the fucoidan recovery were established. ► Recovered fucoidan was constituted by fucose, xylose and galactose. ► MAE with short extraction time was effective to recover fucoidan from seaweed.