gradually decreased
by extending storage time at 4 °C. Loss of the viscosity in cloudy juices
was possibly attributed to the precipitation of pulps and degradation
of pectin. It has been reported that pectin can be degraded through enzymatic
and non-enzymatic degradation mechanisms (Sila et al., 2009).
In this study, strawberrieswere blanched before pulping and the pectin
methyl esterase was totally inactivated, therefore the enzymatic degradation
of pectin did not occur in the juices and the non-enzymatic
degradation could be the main reason for pectin loss. The first mechanism
leading to pectin degradation during storage was acid hydrolysis
(Sila et al., 2009).