Few studies measured folates
in cooking liquids but Delchier et al. (2012) showed that leached
folates represent half of folate losses from fresh spinach and the
whole of folates losses from frozen spinach and green beans, after
boiling in water. Data concerning the impact of industrial processing
on folate losses is really scarce. Our previous study showed that
blanching had no effect on folate loss both during the spinach
freezing process and the green beans canning process. Losses occur