Native agar (NA) extraction was performed using the method
proposed by Marinho-Soriano and Bourret (2003) with slight modifications.
Three samples of ground freeze dried biomass (1 g) were
immersed in 40 mL of deionized water (pH 6.5) and heated in an
autoclave for 1.5 h at 120 ◦C (optimum temperature for extraction)