Fig. 4

Impact of varying water volumes on ulvan production in Ulva lactauca using a one factor at a time (OFAT) approach with (Temperature 120 ℃, Time:50 min, pH 4.5 kept constant).Yield per 1 g of dry alga increased from 0.099 at 1:10 to 0.228 at 1:30, the final optimized yield.