Figure 2.

Schematic diagram indicating the pH shift and microwave-assisted extraction (MAE) procedures in order to disrupt the anionic cell wall in seaweeds. The acid/base is added, fractionising the sample into smaller fragments which are centrifuged and later cleaned up and filtered using a molecular weight cut-off filter membrane. The peptides are screened for anti-hypertensive, anti-diabetic and anti-inflammatory activities. Additionally, the peptides are characterised using mass spectrometry, and they can be used in the functional foods, as well as the cosmetic and pharmaceutical sectors.