„gerbstoffe” Und Oxyzimtsäureabkömmlinge in Labiaten

Abstract

The esters of hydroxycinnamic acids in more than 300 species out of 55 genera of Labiatae are investigated. The following compounds have been proved: the caffeic-, 1-caffeyl-, chlorogenic-, cryptochlorogenic-, neochlorogenic-, rosmarinicisochlorogenic-acid as well as the 1-caffeyl-, 6-caff eyl-and 1,6-dicaffeyl-glucose esters. The distribution of the derivatives of the hydroxycirznamic acids and especially of the rosmarinic-acid and the depsides of the caffeic-and quinic-acid may be of taxonomic importance. Zusammenfassttng Es wird ein kurzer Oberblick iiber den derzeitigen Stand der Erforschtrng der ,,GerbstoffeM und der Abkommlinge der Oxyzimtsauren in Labiaten gegeben. Die Ester der Oxyzimtsauren in mehr als 300 Arten aus 55 Gattungen wurden untersucht. Es wurden Kaffee-, 1-Kaffeyl-, Chlorogen-, Kryptochlorogen-, Neochlorogen-, Rosmarin-und lsochlorogensauren, die Ester der Kaffeesaure mit Glukose (die I-Kaffeyl-, 6-Kaffeyl-und 1,6-Dikaffeylglucose) sowie die Abkommlinge der p-Oxyzirnt-und Ferulasauren entdeckt. Auf Grund der Verteilung der Derivate der Oxyzimtsaztren and, besonde.rs, d e~ Rosmarinsaure und der Depside der Kaffee-und Chinasaure wird deren chemotaxonomische Bedeutung fur die Labiaten diskutiert.

Cloning and characterisation of rosmarinic acid synthase from Melissa officinalis L.

“…The formation of chlorogenic acid and/or other caffeoylquinic acids in lemon balm is reported controversely in the literature. While Litvinenko et al (1975), Pedersen (2000) and Fecka and Turek (2007) did not find chlorogenic acid in M. officinalis, Marques and Farah (2009) have found several different caffeoylquinic acids. It is therefore worthwhile looking for enzymes/genes catalysing the formation of chlorogenic and other caffeoylquinic acids in this plant species.…”

Novel antiviral agents: a medicinal plant perspective

“…In general, the aforesaid antiviral activity is attributable to the polyphenols, rosmarinic acid, and the low‐molecular glycoside‐forming compounds of chlorogenic acid and caffeic acid, and their derivatives (Litvinenko et al. 1975).…”

Parallel determination of rosmarinic and caffeic acids by TLC-densitometry

“…RA and CA, as major components of tannins, commonly occur together in many species of the Lamiaceae. An extensive investigation of this family afforded mainly qualitative data on RA and CA [7]. HPLC has been used for the quantitative evaluation of RA, and a colorimetric method for the determination of total hydroxycinnamic derivatives [2].…”