Results 161 to 170 of about 844 (206)

Dyeing experiments with dyer's madder (Rubia tinctorum L.)

, 2022
Färbeexperimente mit Färberkrapp (Rubia tinctorum L.).Alizarin, Purpurin und andere Anthrachinonfarbstoffe werden mittels Farbstoffanalysen in Rot- und Purpurtönen historischer Textilien – zum Beispiel spätantiker Textilen aus Ägypten (300-800 n. Chr. ) – nachgewiesen, woraus auf das Färben mit Rötegewächsen geschlossen werden kann.
Rösel-Mautendorfer, H., Bogensperger, I., Proaño Gaibor, A.N., Hofmann-de Keijzer, R., van Bommel, M.R.   +4 more
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The genotoxicity of lucidin, a natural component of Rubia tinctorum L., and lucidinethylether, a component of ethanolic Rubia extracts

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, H Marquardt, J Westendorf   +2 more
exaly   +3 more sources

Evaluation of Different Madder Genotypes (Rubia tinctorum L.) for Dyestuff Production

Journal of Herbs, Spices and Medicinal Plants, 2002
SURMMARY 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., Marquard R., Turgut I., Yüce S.   +3 more
exaly   +3 more sources

On the history of madder ( Rubia peregrina L., and Rubia tinctorum L.) in pre-modern Iran and the Caucasus

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.
Snoussi, Ahmed, Bouzouita, Nabiha, Hervé Casabianca, Essaidi, Ismahen, Ben Haj Koubaier, Hayet, Hayet Ben Haj Koubaier, Casabianca, Hervé, Ahmed Snoussi, Ismahen Essaidi, Nabiha Bouzouita   +9 more
openaire   +2 more sources

Evaluation of natural dyeing of leather with Rubia tinctorum extract [Derinin Rubia tinctorum ekstrakti{dotless} ile dogal boyanabilirliginin degerlendirilmesi]

, 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.
openaire   +2 more sources

An investigation on in Vitro regeneration ability of madder (Rubia tinctorum L.) [Kökboya Bitkisinin (Rubia tinctorum L.) in Vitro Koşullarmda Rejenerasyon Yeteneginin Araştirilmasi]

, 1997
In this thesis regeneration ability Rubia tinctorum was investigated by using tissue culture techniques. For this aim. the explants from node, internode, leaf and hypocotil were cultured in Murashige and Skoog (MS) medium, containing different concentrations of NAA and BAP.
Ercan G., Yüce S., Turgut K.
openaire   +2 more sources

Rubia tinctorum L.

2002
Abstract The roots of Rubia tinctorum L. (madder) are the source of a natural dye. In this review for the first time all the different information on Rubia tinctorum available in the literature is summarised. The dye components are anthraquinones whichprobably contribute to the resistance of the plant against fungi in the soil.
Derksen, G.C.H., van Beek, T.A.
openaire   +2 more sources

Characterization of lucidin formation in Rubia tinctorum L.

Plant Physiology and Biochemistry, 2005
In order to approach lucidin formation (a strong mutagen or a carcinogen) from a physiological standpoint, hairy roots of Rubia tinctorum L. were established by a transformation of Agrobacterium rhizogenes strain 15834 and cultured in a liquid woody plant medium without plant hormones. The anthraquinone pigment composition of the intact hairy roots was
Fumi, Nakanishi, Yuki, Nagasawa, Yumi, Kabaya, Hiroyuki, Sekimoto, Koichiro, Shimomura   +4 more
openaire   +2 more sources

Rubia tinctorum L.

2012
Digitale Pflanzenbilder: Sammlung Dietmar ...
openaire   +1 more source

Three hydroxymethylanthraquinone glycosides from rubia tinctorum

Phytochemistry, 1998
Three 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
openaire   +1 more source