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Table 2 The concentration of carotenoids in the human plasma

From: Possible benefits of tomato juice consumption: a pilot study on irradiated human lymphocytes from healthy donors

Carotenoids (μg/mL) Baseline Intake Washout
Mean ± SE Mean ± SE Mean ± SE
Lutein 0.23 ± 0.03 0.23 ± 0.02 0.21 ± 0.02
Zeaxanthin 0.06 ± 0.01 0.05 ± 0.01 0.05 ± 0.01
β-Cryptoxanthin 0.12 ± 0.02 0.13 ± 0.02 0.12 ± 0.01
α-Carotene 0.15 ± 0.02 0.13 ± 0.02 0.12 ± 0.01
β-Carotene 0.35 ± 0.08 0.44 ± 0.08 a, b 0.32 ± 0.05
Lycopene 0.34 ± 0.03 0.51 ± 0.03 a, b 0.34 ± 0.03
  1. Values are given as mean ± SE of 10 donors. a: different from baseline (P < 0.05), b: different from washout (P < 0.05) by paired t test