anisaldehyde;
aniseed;
tyrosinase inhibitor;
L-DOPA;
noncompetitive inhibition;
Schiff base formation;
D O I:
10.1021/jf9708958
中图分类号:
S [农业科学];
学科分类号:
09 ;
摘要:
Anisaldehyde characterized in the seeds of Pimpinella anisum L. (Umbelliferae), also known as aniseed, was found to inhibit the oxidation of L-3,4-dihydroxyphenylalanine (L-DOPA) by mushroom tyrosinase (EC 1.14.18.1) with an ID50 of 43 mu g/mL (0.32 mM). The inhibition kinetics analyzed by a Lineweaver-Burk plot established anisaldehyde to be a noncompetitive inhibitor for this oxidation. On the basis of this Ending, various related analogues were also tested in order to gain new insights into their structural functions.
机构:
Univ Macau, Inst Chinese Med Sci, State Key Lab Qual Control Chinese Med, Ave Univ Macau, Macau, Peoples R ChinaUniv Calabria, Dept Pharm Hlth & Nutr Sci, I-87036 Cosenza, Italy