Red Rose Pigments | Top Q&A

Red roses are the traditional flower of Valentine’s Day. Where do colors come from? Anthocyanins produce the red color in roses. They belong to the flavonoid family. Flavonoids include anthocyanins, anthocyanidins and flavones and flavonol pigments. Anthocyanins are obtained from anthocyanidins by adding sugar. The skeleton of flavonoids consists of three cycles, two benzene rings and one oxidizing heterocycle, which carry hydroxyl groups in different positions.Read more: How to troubleshoot Excel errors? | Top Q&AAAnthocyanins are water-soluble pigments found in cell vacuoles. They can appear red, purple, magenta or blue depending on the pH and appear on leaves, stems, roots, flowers and fruits. Anthocyanins can also be found, such as in green poppies, eggplants (aubergines), blood oranges, blackberries, blackberries, and cherries. In 1914, Nobel laureate Richard Willstätter was able to isolate the same pigment from blue cornflowers and red roses, which turned out to be cyanin, the diglucoside of cyanidin. Cyanin appears orange to red in strong acids, purple to purple in weak acids, and blue in alkaline media. Cyanidine is a dye belonging to the group of anthocyanidins.

Colors of Life, Julien P. Renoult, Bernard Valeur, ChemViews Mag. 2016. DOI: 10.1002 / chemv.201600025 The colors of the living world are generated by various mechanisms

Read more: How to troubleshoot Excel errors? | Q & AR back to top Read more: Why do girls like bl Spread the joy on Valentine’s Day, Ricardo Nowack, ChemViews Mag. 2016. On Valentine’s Day, everyone can spread joy – even in the lab Chemistry for Valentine’s Day, ChemViews Mag. 2015. Red roses are still the most popular flower to give on Valentine’s Day, and chocolate is always an epitome of a good idea: Chemistry for Valentine’s Day Rose Pigment Chemistry, ChemViews Mag. 2014. The color of roses, the most popular Valentine’s Day flower, is determined by chlorophyll, flavonoids and carotenoids Read more: How to troubleshoot Excel errors? | Top Q&APost views: 9551Read more: Why the hexagon is the strongest shape