Effects of simulated digestion in vitro on cell wall polysaccharides from kiwifruit (Actinidia spp.)

► In vitro upper-intestinal tract digestion of green and gold kiwifruit pulp. ► Yields of insoluble fibre decreased; soluble fibre increased. ► Changes in molecular weight profiles of pectin-rich soluble fibre fractions. ► Decreased methylesterification of galacturonic acid in soluble fibre fractions.