To determine the effect of in vitro GI digestion on the levels of
TPC, TFC, TMA, and TAC of black mulberry fruit and its processed
juice, spectrophotometric measurements were performed on PG
(post-gastric), IN (serum-available), and OUT (colon-available)
samples that were collected during the digestion procedure.
Recovery values for these measurements were calculated by dividing the values obtained for the IN fraction to the initial (prior to
digestion) values and then expressed as percentages (Table 4).
The calculated TPC, TFC, and TAC recoveries for the IN fractions
of fruit and juice samples did not show significant differences
(except for CUPRAC assay) (p> 0.05). On the other hand, the recovery of TMA was significantly higher inin vitrodigested fruit sample
(9%) compared to its processed juice (5%) (Table 4)(p< 0.05). Furthermore, while the recoveries of TPC and TFC were around