The effects of high pressure homogenization processing (HPHP), thermal treatment (TT) and milk matrix
(soy, skimmed and whole milk) on the phenolic bioaccessibility and the ABTS scavenging activity of
apple, grape and orange juice (AJ, GJ and OJ) were investigated. HPHP and soy milk diminished AJ’s total
phenolic bioaccessibility 29.3%, 26.3%, respectively, whereas TT and bovine milk hardly affected it. HPHP
had little effect on GJ’s and OJ’s total phenolic bioaccessibility, while TT enhanced them 27.3–33.9%, 19.0–
29.2%, respectively, and milk matrix increased them 26.6–31.1%, 13.3–43.4%, respectively. Furthermore,
TT (80 C/30 min) and TT (90 C/30 s) presented the similar influences on GJ’s and OJ’s phenolic bioaccessibility.
Skimmed milk showed a better enhancing effect on OJ’s total phenolic bioaccessibility than soy
and whole milk, but had a similar effect on GJ’s as whole milk. These results contribute to promoting the
health benefits of fruit juices by optimizing the processing and formulas in the food industry