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Effects of flavonoids on cell uptake of (A) lycopene and (B) lutein in HUVEC, Caco-2, and L-02 cells. Cells were incubated with individual carotenoid or flavonoid-carotenoid combinations for 12 h. “*” indicates a higher uptake rate of mix group than single group (p < 0.05), while “#” indicates a reduced uptake rate of mix group than single group (p < 0.05). M1: LYP:L = 1:5; M2: LYP:Q = 1:5; M3: LUT:L = 1:5; M4: LUT:L = 5:1; M5: LUT:Q = 1:1; M6: LUT:Q = 5:1.
