Chemical Constituents From Aqueous Fraction Of Carduus Scolymus In Yunnan Province

Over the last few years a renewed and growing interest in the artichoke, an old plant with new uses in functional foods, has been observed. Artichoke, Cynara scolymus L., is an ancient herbaceous perennial plant, originating from the Mediterranean area, which today is widely cultivated all over the world. Artichoke is widely cultivated for its large immature inflorescences, called capitula or heads, with edible fleshy leaves (bracts) and receptacle, which represent an important component of the Mediterranean diet and is a rich source of bioactive phenolic compounds, and also inulin, fibres and minerals. In addition, the leaves, also rich in phenolic compounds are used as a herbal medicine and have been recognised since ancient times for their beneficial and therapeutic effects:extracts from artichoke have been used for hepatoprotection.This dissertation dealt with the secondary metabolites of aerial parts from Cynara scolymus cultivated in Yunnan Province, for effective and comprehensive utilization of the artichoke resource and provide a theoretical basis for industrialization. The research results are as follows:The research of chemical constituents of in aerial parts of C. scolymus cultivated in Yunnan Province. By means of column chromatography such as normal-phase silica gel column, alumina column, LH-20, macroporous resin column, cultivated C. scolymus cultivated were distilled and separated. Six compounds were identified from aqueous fraction of cultivated C. scolymus by modern spectroscopic techniques such as NMR, ESI-MS and UV methods. 1,2-dihydro-3-methoxy 2-Naphthalenecarboxylic acid (1), (+)-pinoresinol-4-O-β-D-glucopyranoside (2), Syringaresinol-4-O-β-D-glucopyranoside (3) Cynarascoloside C (4), Loganin (5), Luteolin 7-glucoside (6) were isolated, of which compounds 1,2,3, and 5 were reported from C. scolymus.