“…Hereunder, recent advances in the processing of seaweed oriented to the polysaccharide extraction are detailed. In addition, the pretreatments employed for the obtainment of other compounds (such as phenolic compounds, proteins, pigments) which cannot be used in the (Jeong et al, 2011;Kim et al, 2015;Malihan et al, 2014;Park et al, 2011;Sukwong et al, 2018) (Mhatre et al, 2018;Peña-Rodríguez et al, 2011b;Robin et al, 2017;Tabarsa et al, 2012) (Marinho et al, 2015;Møller et al, 2016;Sharma et al, 2018) biofuel production have also been considered, since the remaining solid after the pretreatment step is mainly composed by cellulose or other oligomers that may be employed for biofuel production. Furthermore, most of the authors evaluate and optimize the pretreatment to extract a single value-added product (such as hydrocolloids, proteins, bioactive compounds, pigments, sugars for biofuel production, etc.)…”