Fig. 4.

(A) Comparison of lipase inhibition, using olive oil as a substrate, by alginates extracted from Laminaria and Lessonia seaweeds. Four alginates of increasing molecular weight from left to right are shown for both Laminaria and Lessonia as their respective source. Inhibition of lipase shown in this figure is caused by 3.43 mg/ml of alginate. There was a statistical difference between the two species of seaweed with p values of less than 0.001. Error bars shown are the standard error of the mean of three replicates. 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 hyperborea genus of seaweeds (olive oil 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 three replicates. The molecular weight of the biopolymers increases from left to right (LFR5/60 to SF200).