Biphasic Effect of Simple Phenol Derivatives on Mushroom Tyrosinase Activity
نویسندگان
چکیده
منابع مشابه
Effect of vanillin and its acid and alcohol derivatives on the diphenolase activity of mushroom tyrosinase
For the first time in the present study the effects of vanillin, vanillyl alcohol, vanillic acid, as well as the newly synthesized vanillin derivative, bis-vanillin, were investigated on the oxidation of dopamine hydrochloride by mushroom tyrosinase. Among them, vanillin and bis-vanillin act as activators, while vanillyl alcohol and vanillic acid exhibited inhibitory effects, the IC50 values be...
متن کاملThe inhibition effects of melon on mushroom tyrosinase activity
The inhibition effects seed and peel of melon on diphenolase activity of mashroom tyrosinase were investigated. The IC50 values and Ki values of seed and peel of melon were evaluated. increased the Km value and decreased the Vm value so it show mixed type inhibition on mushroom tyrosinase when L-DOPA was used as a substrate.
متن کاملEffect of methimazole on the activity of mushroom tyrosinase.
Methimazole (1-methyl-2-mercaptoimidazole) inhibits both the mono- and the o-dihydroxyphenolase activities of mushroom tyrosinase when assayed spectrophotometrically. With DL-3,4-dihydroxyphenylalanine as substrate, the inhibition was found to be a mixed-type one with Ki 4.6 X 10(-6) M. We found that methimazole can interact with the oxidation products of o-dihydroxyphenols, probably with o-qui...
متن کاملeffect of vanillin and its acid and alcohol derivatives on the diphenolase activity of mushroom tyrosinase
for the first time in the present study the effects of vanillin, vanillyl alcohol, vanillic acid, as well as the newly synthesized vanillin derivative, bis-vanillin, were investigated on the oxidation of dopamine hydrochloride by mushroom tyrosinase. among them, vanillin and bis-vanillin act as activators, while vanillyl alcohol and vanillic acid exhibited inhibitory effects, the ic50 values be...
متن کاملMushroom tyrosinase inhibition activity of some chromones.
Currently, aloesin is used in the cosmetic industry as a whitening agent because it inhibits tyrosinase activity. Aloesin is a C-glycosylated chromone compound isolated from aloe, and it is difficult to synthesize because of C-glycosyl moiety in the molecule. The purpose of this study is to search for a new chromone compound which is easy to synthesize and which posesses stronger tyrosinase inh...
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ژورنال
عنوان ژورنال: The FASEB Journal
سال: 2006
ISSN: 0892-6638,1530-6860
DOI: 10.1096/fasebj.20.5.a897