One method alone is not sufficient for accurate
testing of antioxidant capacity, as many factors
influence this characteristic. Thus, it is indispensable
to execute multiple assessments. Antioxidant capacity
of fresh and pressurized Yangan-honey juices was
assessed using DPPH and FRAP tests. The data
in Table 3 showed that the decrease in antioxidant
capacity of HHP treated Yangan-honey juices was
associated with the reduction of ascorbic acid.
Sánchez-Moreno et al. (2005) stated that antioxidant
capacity of the products is related to the composition
and concentration of antioxidative constituents such
as ascorbic acid, phenols, carotenoids, anthocyanins
or flavonoids. When pressurized at extreme level, the
juice showed a markedly lower (P≤0.05) antioxidant
capacity than other processed juices (Table 3).
Comparable findings were illustrated by Indrawati
et al. (2004) and Dede et al. (2007) with carrot and
tomato juices.