The effect of pectin structure on mineral bioaccessibility in model was explored.
Different DMs were created in citrus and sugar beet pectin by action of PME.
In vitro bioaccessibility of Ca2+, Zn2+, Fe2+ and Mg2+-ions was established.
Bioaccessibility increased with pectin DM, degree of branching and acetylation.
Mg2+ was the most bioaccessible cation followed by Ca2+, Zn2+ and then Fe2+.