Non-enzymatic Hydroxylation of (E)-p-Coumaric Acid to (E)-Caffeic Acid
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چکیده
منابع مشابه
Kinetic studies on the hydroxylation of p-coumaric acid to caffeic acid by spinach-beet phenolase.
1. A spectrophotometric assay is described that enables the hydroxylation of p-coumaric acid to caffeic acid, catalysed by spinach-beet phenolase, to be followed continuously. 2. Initial-velocity and inhibitor studies indicate that the order of substrate addition is oxygen, p-coumaric acid and electron donor, with an irreversible step separating the binding of each substrate. 3. Caffeic acid is...
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Flavonoids are a growing class of bioactive natural products with distinct and interesting bioactivity both in vitro and in vivo. The extraction of flavonoids from plant sources is limited by their low natural abundance and commonly results in a mixture of products that are difficult to separate. However, due to recent advances, the microbial production of plant natural products has developed a...
متن کاملSynthesis and Molecular Structures of (E)-non-2-enoic Acid and (E)-dec-2-enoic Acid
The molecular structures of (E)-non-2-enoic acid (C9) and (E)-dec-2-enoic acid (C10) are reported. The title compounds were crystallized by slow evaporation of ethanolic solutions at −30 °C. C9 crystallizes in the monoclinic space group P21/c and C10 in the triclinic space group P-1, each with 4 molecules in the unit cell. The unit cell parameters for C9 are: a = 10.6473(4) Å, b = 5.2855(2) Å, ...
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Citation: Celińska-Janowicz K, Zaręba I, Lazarek U, Teul J, Tomczyk M, Pałka J and Miltyk W (2018) Constituents of Propolis: Chrysin, Caffeic Acid, p-Coumaric Acid, and Ferulic Acid Induce PRODH/POX-Dependent Apoptosis in Human Tongue Squamous Cell Carcinoma Cell (CAL-27). Front. Pharmacol. 9:336. doi: 10.3389/fphar.2018.00336 Constituents of Propolis: Chrysin, Caffeic Acid, p-Coumaric Acid, an...
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We investigated the in vitro effects of p-coumaric acid on melanogenesis. The melanin content in B16F1 cells stimulated with p-coumaric acid significantly decreased (68 % vs. control) through inhibition of tyrosinase enzyme activity assessed using both cell-free and cellbased assays (46 and 27 % compared with control, respectively). In addition, stimulating B16F1 cells with p-coumaric acid redu...
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1989
ISSN: 0002-1369
DOI: 10.1080/00021369.1989.10869610