An expanded maize product added with red seaweeds Porphyra columbina (3.5 g 100 g1) was developed
and bio-accessibility of minerals and bioactive compounds such as ACE inhibitors and antioxidants
provide by algae were evaluated using a pepsin/pancreatin digestion and equilibrium dialysis method.
Extruded maize added with red seaweed showed higher dialyzability of ACE inhibitor compounds (41.0%
ACE inhibition), total phenolic content (0.83 mg gallic acid/g dialysate) and antioxidant capacity (36.6%
DPPH inhibition, 2.4 mM TEAC, power reduction and 99.4% copper-chelating activity) than extruded
maize. Results about bio-accessibility of bioactive compounds provided by red edible seaweeds may help
food technologists to tailor new bio-functional foods, such as functional snacks.