Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Ikuyo Kinst-Hori"'
Publikováno v:
Bioorganic & Medicinal Chemistry. 8:1749-1755
Tyrosinase inhibitory activity of flavonols, galangin, kaempferol and quercetin, was found to come from their ability to chelate copper in the enzyme. In contrast, the corresponding flavones, chrysin. apigenin and luteolin, did not chelate copper in
Publikováno v:
Journal of Agricultural and Food Chemistry. 48:1393-1399
Tyrosinase inhibitory and antioxidant activity of gallic acid and its series of alkyl chain esters were investigated. All inhibited the oxidation of L-3,4-dihydroxyphenylalanine (L-DOPA) catalyzed by mushroom tyrosinase. However, gallic acid and its
Autor:
Isao Kubo, Ikuyo Kinst-Hori
Publikováno v:
Journal of Agricultural and Food Chemistry. 47:4574-4578
A series of alpha,beta-unsaturated aldehydes, otherwise known as (2E)-alkenals, characterized from the olive Olea europaea L. (Oleaceae) oil flavor was found to inhibit the oxidation of L-3, 4-dihydroxyphenylalanine (L-DOPA) catalyzed by mushroom tyr
Autor:
Ikuyo Kinst-Hori, Isao Kubo
Publikováno v:
Journal of Agricultural and Food Chemistry. 47:4121-4125
A common flavonol, kaempferol, isolated from the fresh flower petals of Crocus sativus L. (Iridaceae) was found to inhibit the oxidation of L-3,4-dihydroxyphenylalanine (L-DOPA) catalyzed by mushroom tyrosinase with an ID(50) of 67 microgram/mL (0.23
Autor:
Isao Kubo, Ikuyo Kinst-Hori
Publikováno v:
Journal of Agricultural and Food Chemistry. 46:5338-5341
Cuminaldehyde (p-isopropylbenzaldehyde) was identified as a potent mushroom tyrosinase inhibitor from cumin, a common food spice. This benzaldehyde derivative was found to inhibit the oxidation of l-3,4-dihydroxyphenylalanine (l-DOPA) by mushroom tyr
Autor:
Ikuyo Kinst-Hori, Isao Kubo
Publikováno v:
Journal of Agricultural and Food Chemistry. 46:1268-1271
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 μg/mL (0.32 m
Publikováno v:
Journal of Natural Products. 58:739-743
Bioassay-guided fractionation monitored by mushroom tyrosinase (EC 1.14.18.1) activity, afforded six inhibitors from three Bolivian medicinal plants, Buddleia coriacea, Gnaphalium cheiranthifolium, and Scheelea princeps. These inhibitors, which are a
Autor:
Swapan K. Chaudhuri, Tetsuya Ogura, Yolanda Sanchez, Isao Kubo, Kyoko Ishiguro, Ikuyo Kinst-Hori
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 4:1443-1446
By bioassay-guided fractionations, quercetin was isolated as the principal tyrosinase inhibitor from the dried flowers of Heterotheca inuloides Cass (Compositae). This flavonol inhibited the oxidation of L-3,4-dihydroxyphenylalanine (L-DOPA) by mushr
Autor:
Ken-Ichi Nihei, Midori Takasaki, Ikuyo Kinst-Hori, José S. Calderón, Carlos L. Céspedes, Frida Soria, Isao Kubo
Publikováno v:
Scopus-Elsevier
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As a defense mechanism of the leaves of Rhus javanica (Anacardiaceae) against the aphid Melaphis chinensis (Aphididae) attack, tannic acid is rapidly accumulated and forms galls along the midrib of the leaves resulting in a unique natural medicine Ga
Publikováno v:
Journal of natural products. 57(4)
Anacardic acids, 2-methylcardols, and cardols isolated from various parts of the cashew [Anacardium occidentale] (Anacardiaceae) fruit have been found to exhibit tyrosinase inhibitory activity. Kinetic studies with the two principal active compounds,