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. 2016 Sep 2;21(9):1130. doi: 10.3390/molecules21091130

Table 1.

Tyrosinase inhibition activities of compounds from the twigs of M. alba (n = 3).

Compounds IC50 (µM) ± SD
Morusone (1) 290.00 ± 7.90
Steppogenin (2) 0.98 ± 0.01
2,4,2′,4′-Tetrahydroxychalcone (3) 0.07 ± 0.02
Morachalcone A (4) 0.08 ± 0.02
Oxyresveratrol (5) 0.10 ± 0.01
Morusin (6) >100
Kuwanon C (7) 52.00 ± 2.50
Cyclomulberrin (8) 66.30 ± 7.20
5,7,2′,4′-Tetrahydroxy-3-methoxyflavone (9) >150
Dihydrokaempferol (10) >200
Eriodictyol (11) >150
2,4-Dihydroxybenzoic acid (12) >200
p-Coumaric acid (13) >200
Moracin M (14) 8.00 ± 0.22
Moracin J (15) 76.34 ± 0.86
Moracin B (16) 34.40 ± 1.7
Moracin D (17) >200
Kojic acid 58.30 ± 1.60