Results 131 to 140 of about 497 (176)
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Three hydroxymethylanthraquinone glycosides from rubia tinctorum
Phytochemistry, 1998Three hydroxymethylanthraquinone glycosides, in addition to the known compounds alizarin, lucidin-ω-ethyl ether, lucidin primeveroside and the iridoid asperuloside were isolated from the dried roots of Rubia tinctorum. The first three compounds were isolated for the first time from this species.
N.A El-Emary, E.Y Backheet
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Antifungal activity of Rubia tinctorum, Rhamnus frangula and Caloplaca cerina
Fitoterapia, 2005The results of a preliminary antifungal screening of the methanol extracts and the major anthraquinone aglycones, alizarin and emodin, of Rubia tinctorum and Rhamnus frangula in comparison with the antifungal activity of the anthraquinone-containing lichen Caloplaca cerina and its main secondary metabolite parietin are reported.
N T, Manojlovic +3 more
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Cell Biology and Toxicology, 1988
The genotoxic activity of lucidin (1,3-dihydroxy-2-hydroxymethyl-9,10-anthraquinone), a natural component of Rubia tinctorum L., was tested in a battery of short-term tests. The compound was mutagenic in five Salmonella typhimurium strains without metabolic activation, but the mutagenicity was increased after addition of rat liver S9 mix. In V79 cells,
J, Westendorf +4 more
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The genotoxic activity of lucidin (1,3-dihydroxy-2-hydroxymethyl-9,10-anthraquinone), a natural component of Rubia tinctorum L., was tested in a battery of short-term tests. The compound was mutagenic in five Salmonella typhimurium strains without metabolic activation, but the mutagenicity was increased after addition of rat liver S9 mix. In V79 cells,
J, Westendorf +4 more
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Evaluation of Different Madder Genotypes (Rubia tinctorum L.) for Dyestuff Production
Journal of Herbs, Spices and Medicinal Plants, 2002SURMMARY Rubia accessions, derived from different locations in the wild flora of Turkey and from Western Europe, have been described by different morphological characteristics, root yield and dye content. Plants from the Turkish location of Cesme have already been selected by means of root yield.
Siebenborn S. +3 more
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Asiatische Studien - Études Asiatiques, 2022
Abstract For roughly four thousand years the pulverized roots of both wild ( Rubia peregrina L.) and cultivated ( Rubia tinctorum L.) madder have been used in Asia, North Africa and Europe as a red dye.
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Abstract For roughly four thousand years the pulverized roots of both wild ( Rubia peregrina L.) and cultivated ( Rubia tinctorum L.) madder have been used in Asia, North Africa and Europe as a red dye.
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Identification of a mutagenic substance, in Rubia tinctorum L. (madder) root, as lucidin
Mutation Research Letters, 1983Mutagenicity of the extract from Rubia tinctorum L. (madder) root was demonstrated on Salmonella typhimurium TA100 and TA98. The active substance wa purified and characterized by TLC, UV spectrum, IR spectrum, mass spectrum and [1H]NMR spectrum. All the mutagenic activity of the extract from the root of Rubia tinctorum L.
Y, Yasui, N, Takeda
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2011
The aspect of producing leather and textile products without impacting on the ecological balance, affecting both human and environmental health, is an important focal point to be pursued. Therefore, to address some of these issues a study was conducted to evaluate the efficiency of dyeing leather with madder, which is a 100% natural dyestuff from the ...
Onem E., Gulumser G., Ocak B.
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The aspect of producing leather and textile products without impacting on the ecological balance, affecting both human and environmental health, is an important focal point to be pursued. Therefore, to address some of these issues a study was conducted to evaluate the efficiency of dyeing leather with madder, which is a 100% natural dyestuff from the ...
Onem E., Gulumser G., Ocak B.
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Optimizing the Water-based Extraction of Rubia tinctorum L. Pigments
2023Water is one of the greenest solvents, but it is often limited to the extraction of polar compounds. Microwave assisted extraction (MAE) was used to extend the range of polarity of extracted compounds from madder. The main pigments in madder are anthraquinones, generally extracted with hydroalcoholic solvents due to their medium polarity.
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Immobilization of Rubia tinctorum L. Suspension Cultures and Biomass Production
2016Plants are natural sources of valuable secondary metabolites used as pharmaceuticals, agrochemicals, flavors, fragrances, colors, biopesticides, and food additives. There is an increasing demand to obtain these metabolites through more productive plant tissue applications and cell culture methods due to the importance of secondary metabolites ...
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