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. 2017 Mar 9;8:104. doi: 10.3389/fphar.2017.00104

Table 4.

Effects of free rape bee pollen extract on intracellular melanin content and tyrosinase inhibitory activity.

Concentration (μg/mL) Melanin relative contents (%) Tyrosinase relative activity (%)
control 100 ± 1.21a 100 ± 3.25a
20 84.23 ± 2.16b 95.39 ± 4.84a
60 67.37 ± 2.23c 72.49 ± 4.17b
100 52.49 ± 3.06d 59.14 ± 4.02c

Different letters in the same column were significantly different (p < 0.05) from each other.