To the best of our knowledge, there are few literature reports
concerning the food matrix effect on the bioaccessibility of
bioactive compounds, including vitamin C, from blended beverages.
Cilla et al. (2012) reported that the highest bioaccessibility
of vitamin C was obtained in fruit beverages containing 16.5%
(v/v) of whole milk, while the lowest was in that made with
42.5% (v/v) of soymilk. Differences in the results obtained in
the present research and in that reported by Cilla et al. (2012)
could be explained by the proportion of juices, milk or soymilk
used to prepare the beverages. Additionally, these authors (Cilla
et al., 2012) determined the vitamin C bioaccessibility in the
supernatants obtained after centrifugation of the intestinal
digesta (3300g/1h at 4 °C) instead of the dialysed fraction (as
in this research). In a previous study carried out in our laboratory,
it was found that a beverage made with a similar blend
of juices and 42.5% of soymilk (2.4 times higher than in this
research) led to 13% of vitamin C bioaccessibility
(Rodríguez-Roque et al., 2014b). Taking into account the