Anti-tyrosinase Activity Constituents of Arctostaphylos uva-ursi
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چکیده
منابع مشابه
In vitro EFFICACY OF EXTRACTS OF Arctostaphylos uva-ursi L. ON CLINICAL ISOLATED Escherichia coli AND Enterococcus faecalis STRAINS
Antibacterial activity, total phenolic content and flavonoid concentrations of extracts from the leaves of Arctostaphylos uva-ursi L. were performed. Tested bacterial strains are 20 clinical isolates, including different strains of Escherichia coli and Enterococcus faecalis. The total phenolic content was determined using Folin-Ciocalteu reagent. The concentration of flavonoids in extracts were...
متن کاملComparative study of the leaf volatiles of Arctostaphylos uva-ursi (L.) Spreng. and Vaccinium vitis-idaea L. (Ericaceae).
The first GC and GC/MS analyses of the essential oils hydrodistilled from dry leaves of Arctostaphylos uva-ursi and Vaccinium vitis-idaea enabled the identification of 338 components in total (90.4 and 91.7% of the total GC peak areas, respectively). Terpenoids, fatty acids, fatty acid- and carotenoid derived compounds were predominant in the two samples. Both oils were characterized by high re...
متن کاملSE-HPLC Separation of Myosin Complex with Tannins of Bearberry (Arctostaphylos uva-ursi L. Sprengel) Leaves – A Short Report
Amarowicz R., Pegg R.B., Kosińska A. (2009): SE-HPLC separation of myosin complex with tannins from bearberries (Arctostaphylos uva-ursi L. Sprengel) leaves – a short communication. Czech J. Food Sci., 27: 386–391. Phenolic compounds were extracted from bearberry (Arctostaphylos uva-ursi L. Sprengel) leaves into 95% (v/v) ethanol. The tannin constituents were separated from the crude extract us...
متن کاملTyrosinase activity of Greyia flanaganii (Bolus) constituents.
Hyper-pigmentation of the skin is a common problem that is prevalent in middle aged and elderly people. It is caused by over production of melanin. Tyrosinase is known to be the key enzyme in melanin production. Ethanolic extract of Greyia flanaganii leaves showed significant (P<0.05) antityrosinase activity exhibiting the IC₅₀ of 32.62 μg/ml. The total extract was further investigated for its ...
متن کاملChemical Information Review Document for Arbutin [CAS No. 497-76-7] and Extracts from Arctostaphylos uva-ursi
Arbutin is found in the dried leaves of a number of different plant species including bearberry (Arctostaphylos uva-ursi). The leaves and leaf extracts from uva ursi are used in non-prescription medicinal products mainly to treat urinary tract infection, cystitis, kidney stones, and as a diuretic. The active component, arbutin, is converted to hydroquinone (HQ) which has antimicrobial, astringe...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 1997
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi1947.117.12_1028