Among
these
compounds
present
in
erva-mate,
there
are
the
polyphenols
that,
according
to
Berté et al. (2011), have acknowledged functional properties.
On the other hand, some authors (Lewicki, 2006; Jesus et al.,
2007) reported the need of using these extracts in concentrated
form
in
food,
because
it
would
not
only
reduce
costs
of
stor-
age
and
transportation,
but
also
increase
shelf
life