| abstract |
(57) [Summary] [Structure] The following amino acid analysis values are shown, and four amino acids from the N-terminus are H-Glu-Ile-Val- Pro- or H-Glu-Leu-Val-Pro- A peptide having a molecular weight of 3,100 ± 800 or a salt thereof. Asp or Asn 3.0 ± 2% Glu or Gln 3.5 ± 2% Ser 7.1 ± 2% Gly 17.9 ± 2% His 4.1 ± 2% Arg 5.0 ± 2% Thr 5.7 ± 2% Ala 7.6 ± 2% Pro 1.6 ± 2% Tyr 3.3 ± 2% Val 9.2 ± 2% Met 0 Cys 15.3 ± 2% Ile 3.9 ± 2% Leu 6. 8 ± 2% Phe 0 Lys 5.9 ± 2% A tyrosinase activity inhibitor comprising the above peptide or a salt thereof as an active ingredient. [Effects] The novel peptide of the present invention exhibits an excellent tyrosinase activity inhibitory effect, It can be used as a cosmetic, a whitening food, an anti-browning agent for crustaceans, a freshness-retaining agent and the like. |