EVALUATION OF PHENOLIC COMPOUNDS FROM SOME GLOBE ARTICHOKE [Cynara cardunculus var. scolymus (L.) Fiori] CULTIVARS BASED ON LEAF POSITION AND DIFFERENT PLANT DEVELOPMENT STAGE

OpenAlex İngilizce

In recent years, the use of globe artichoke [Cynara cardunculus var.scolymus (L.) Fiori] heads have increased in the pharmaceutical field and the active ingredient of many herbal medicines, especially globe artichoke leaves are considered as waste material, thrown away to nature, resulting with environmental pollution, in some countries.The present study is, thus, conducted to evaluate the phenolic compounds in the leaves of two globe artichoke cultivars as well as their change in different months.Globe artichoke leaves were harvested monthly, according to their positions as inner and outer (young and mature leaves, respectively).Leaf samples were dried and extracted using 70% methanolic extraction solvent and quantitatively analyzed at HPLC-DAD.Findings revealed that there were differences between cultivars and leaf positions as inner and outer and also among different plant development stage, in terms of content of bioactive components.Flavonoid levels in February were quite promising, while in terms of other phenolic compounds, December and January were prominent.Regarding the leaf positions, high flavonoid levels were dominant in inner leaves.The findings of the study can be beneficial for using globe artichoke leaf content in nutraceutical and pharmacological applications due to their high level of phenolics and should not be treated as waste material.