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Total phylloquinone levels in plasma of 7 subjects before (0) and after 3, 6, 12 and 24 h consumption of broccoli cooked with boiling or steaming treatment. Data are expressed as ng/mL of plasma ± SD of three technical replicates. * p < 0.05 and ** p < 0.01 vs. 0 h (a), 3 h (b) and 6 h (c) in subjects supplemented with boiled broccoli; # p < 0.05 and ## p < 0.01 vs. 0 h (a), 3 h (b) and 6 h (c) in subjects supplemented with steamed broccoli.
