(A) Inhibition of lipase caused by Laminaria hyperborea and Lessonia nigrescens alginates (DGGR substrate). Four alginates of differing molecular weight are shown for Laminaria hyperborea and Lessonia nigrescens as their respective source. Inhibition of lipase shown in this figure is for 3.43 mg/ml of alginate. The alginates from Laminaria hyperborea species are (from left to right) LFR5/60, SF120, SF/LF, and SF200, full characteristics can be found in Table 1. The Lessonia nigrescens seaweed alginates are (from left to right) LF10L, LF120L, SF60 and H120L, again full details can also be found in Table 1. Error bars shown are the standard error of the mean of six replicates. Laminaria hyperborea alginates inhibit lipase to significantly higher degree than Lessonia nigrescens alginates (p = 0.0015). Bars annotated with letter 'a' are significantly different to those with letter 'b'. (B) Concentration dependent inhibition of lipase by the four alginates from Laminaria genus of seaweeds (DGGR substrate). □ – 0.21 mg/ml, ▨ – 0.86 mg/ml and ■ – 3.43 mg/ml. The error bars are the standard error of the mean of six replicates.