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Tussilago farfara L. (family Asteraceae) is a valuable medicinal plant that has been used as a cough suppressant and as an antibacterial and anti-inflammatory drug. Mucopolysac charides, flavonoids, sterols, phenolic acids and pyrrolizidine alkaloids (PAs) are the main active compounds of coltsfoot. Due to hepatotoxic properties of some pyrrolizidine alkaloids, raw materials that contain PAs should...
Salvia milthiorrhiza root (Danshen) is one of the oldest and most traditional drug of Chinese origin, mainly used in the treatment of cardiovascular and cerebrovascular diseases. The tanshiniones (diterpenoids) and phenolic acids are the main biological active substances of S. miltiorrhiza. The aim of this study was to determine the optimal conditions for callus cultures and biosynthesis of the biological...
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