Isatis demiriziana Mısırdalı plant contains a number of compounds which has anticarcinogenic, antioxidant
and other preventive effects. In this study, the flavonoid and phenolic contents in the plant samples harvested in the
vegetative (leaf and root) and full flowering season (flower, leaf and root) were determined by LC-MS/MS. Among the
27 compounds studied, malic acid was found to be the most abundant compound in the methanolic extracts of samples
and the amount of malic acid of vegetative root extracts were the highest (30124,37 µg g-1 dry-extract). Moreover, it
was also determined considerable amount of salicylic acids and p-coumaric in the root extracts. This study is the first
detailed study on the phenolic and flavonoid compounds of I. demiriziana. Based on the findings of this study, in
further researches might be refered as an additional source in production of phenolic and flavonoid compounds
