It can be observed in Fig. 2, that aspartame degradation
was accelerated by glucose addition (aw ¼ 0.989) to the
system without humectants (Fig. 2, system C vs. F), while
there were nonsignificant differences by the addition of
xylitol or glucose–xylitol mixture (Fig. 2, system C vs. I, L,
respectively). Probably, the overall rate of aspartame
degradation increased due to the consumption of aspartame
degradation products through its reaction with
carbonyls produced by sorbic acid degradation, via
Maillard browning.
It must be remarked that losses of aspartame in the
systems ranged from 10% to 35% and that none of the
degradation products is sweet (Homler, 1984). As a
consequence, sweetness perception will probably be
impaired.
It can be observed in Fig. 2, that aspartame degradation
was accelerated by glucose addition (aw ¼ 0.989) to the
system without humectants (Fig. 2, system C vs. F), while
there were nonsignificant differences by the addition of
xylitol or glucose–xylitol mixture (Fig. 2, system C vs. I, L,
respectively). Probably, the overall rate of aspartame
degradation increased due to the consumption of aspartame
degradation products through its reaction with
carbonyls produced by sorbic acid degradation, via
Maillard browning.
It must be remarked that losses of aspartame in the
systems ranged from 10% to 35% and that none of the
degradation products is sweet (Homler, 1984). As a
consequence, sweetness perception will probably be
impaired.
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