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rubia_tinctorum_l [2015/07/04 12:28]
andreas |
rubia_tinctorum_l [2015/07/04 12:40] (aktuell)
andreas |
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| "The plant's roots contain several polyphenolic compounds, such as 1,3-dihydroxyanthraquinone (purpuroxanthin), 1,4-dihydroxyanthraquinone (quinizarin), 1,2,4-trihydroxyanthraquinone (purpurin) and 1,2-dihydroxyanthraquinone (alizarin). This last compound gives it its red colour to a textile dye known as Rose madder. It was also used as a colourant, especially for paint, that is referred to as Madder lake. The substance was also derived from another species, Rubia cordifolia." [[https://en.wikipedia.org/wiki/Rubia_tinctorum]] | "The plant's roots contain several polyphenolic compounds, such as 1,3-dihydroxyanthraquinone (purpuroxanthin), 1,4-dihydroxyanthraquinone (quinizarin), 1,2,4-trihydroxyanthraquinone (purpurin) and 1,2-dihydroxyanthraquinone (alizarin). This last compound gives it its red colour to a textile dye known as Rose madder. It was also used as a colourant, especially for paint, that is referred to as Madder lake. The substance was also derived from another species, Rubia cordifolia." [[https://en.wikipedia.org/wiki/Rubia_tinctorum]] |
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| | {{:alizarin.jpg|}} alizarin (1,2-dihydroxyanthraquinone) |
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| "Twenty compounds were isolated from the roots of Rubia tinctorum which are used as a commercial source of madder color. Among these compounds, [[http://pubchem.ncbi.nlm.nih.gov/compound/Mollugin|mollugin]], 1-hydroxy-2-methylanthraquinone , 2-ethoxymethyl-anthraquinone, [[https://en.wikipedia.org/wiki/Rubiadin|rubiadin]], 1,3-dihydroxyanthraquinone, 7-hydroxy-2-methylanthraquinone, [[http://www.medchemexpress.com/Lucidin.html|lucidin]], 1-methoxymethylanthraquinone and lucidin-3-O-primeveroside showed mutagenicity with Salmonella typhimurium TA 100 and/or TA 98." \\ | "Twenty compounds were isolated from the roots of Rubia tinctorum which are used as a commercial source of madder color. Among these compounds, [[http://pubchem.ncbi.nlm.nih.gov/compound/Mollugin|mollugin]], 1-hydroxy-2-methylanthraquinone , 2-ethoxymethyl-anthraquinone, [[https://en.wikipedia.org/wiki/Rubiadin|rubiadin]], 1,3-dihydroxyanthraquinone, 7-hydroxy-2-methylanthraquinone, [[http://www.medchemexpress.com/Lucidin.html|lucidin]], 1-methoxymethylanthraquinone and lucidin-3-O-primeveroside showed mutagenicity with Salmonella typhimurium TA 100 and/or TA 98." \\ |
