Orange juice has total soluble solid (TSS) value of 11.8brix (CFR
146.145) which was used to prepare the test samples. But, addition
of the peptide fraction increased the TSS to 12.0brix on day 0. Fig. 3
shows the TSS value of orange juice samples (peptide fraction and
control) where TSS of the orange juice with peptide fraction was
similar or higher than control on over the storage days. The statistical
model showed that TSS values were not significantly
different between treatments (p < 0.0001). Thebrix value in orange
juice with peptide fraction increased to 12.4 on day 42 which was
higher than the control. This can be explained by the possible interactions
between the insoluble components in orange juice that
bind to the peptide fraction in solution, thereby increasing the
soluble solids content of the juice