J. Tóth

Publications28
h-index10
Citations404
Highly Influential Citations18
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Antifungal activity of Mahonia aquifolium extract and its major protoberberine alkaloids
The crude extract of Mahonia aquifolium (Berberidaceae) stem bark and its components berberine, palmatine and jatrorrhizine were screened for their inhibitory activity against a variety of… Expand
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Quantitative changes of dianthrones, hyperforin and flavonoids content in the flower ontogenesis of Hypericum perforatum.
Samples of Hyperici herba were obtained by harvesting Hypericum perforatum L. in different plant development stages. The relation of flower development phases in the drug's flower fraction was… Expand
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The influence of the harvest cut height on the quality of the herbal drugs Melissae folium and Melissae herba.
Variability in both the content and quality of essential oil was observed in herb and leaf drugs in dependence on the harvest cut height of lemon balm (Melissa officinalis L. cv. Citra). Three… Expand
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Effect of Mahonia aquifolium active compounds on interleukin-8 production in the human monocytic cell line THP-1.
The effect of the crude extract and of two alkaloid fractions prepared from Mahonia aquifolium on interleukin-8 (IL-8) production in the lipopolysaccharide (LPS)-stimulated human monocytic cell line… Expand
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Safety assessment of botanicals and botanical preparations used as ingredients in food supplements: testing an European Food Safety Authority-tiered approach.
This article describes results obtained by testing the European Food Safety Authority-tiered guidance approach for safety assessment of botanicals and botanical preparations intended for use in food… Expand
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Potential antimutagenic activity of berberine, a constituent of Mahonia aquifolium
BackgroundAs part of a study aimed at developing new pharmaceutical products from natural resources, the purpose of this research was twofold: (1) to fractionate crude extracts from the bark of… Expand
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Analysis of the Essential Oil Compounds of Origanum Syriacum L.
Abstract Syrian oregano (Origanum syriacum L., Lamiaceae) is a very popular culinary herb that has been used through the ages in traditional medicine mainly in Lebanon and the Arab world. The subject… Expand
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EFSA Compendium of botanicals that have been reported to contain toxic, addictive, psychotropic or other substances of concern
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Antimutagenic potential of homoisoflavonoids from Muscari racemosum.
The potential antimutagenic effect of the plant extract of Muscari racemosum bulbs, rich on 3-benzylidene-4-chromanones, was evaluated on three genetic model organisms. The mixture of three… Expand
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Ginkgo biloba Food Supplements on the European Market - Adulteration Patterns Revealed by Quality Control of Selected Samples.
The aim of this study was to prove whether Ginkgo biloba food supplements on the European market comply with pharmaceutical quality, and whether their composition satisfies the European Pharmacopoeia… Expand
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