Leaf flavonoids of Cyperus species in Egypt

The occurrence of tricin and its derivatives in plants

“…Tricin, in the free form, was first isolated from rusted wheat leaves dating back to 1930 31 and later was also observed in many monocotyledonous plants such as the family of Gramineae 32,33 and Cyperaceae. 34,35 The isolated tricin from plants usually contains tricin derivatives including tricin-glycosides, tricin-lignans, and tricin-lignan-glycosides. In tricin-glycoside, tricin is attached to carbohydrate units, while tricin-lignan refers to tricin derivatives in which tricin is acylated with monolignols (Fig.…”

Iridoids and other constituents from Cyperus rotundus L. rhizomes

“…2 Furthermore, the plant possesses different biological activities such as antioxidant, [3][4][5] cytotoxic, 3,5 anti-allergic, 6,7 antipyretic, anti-inflammatory, antiemetic, hypotensive, 8 anticonvulsant, 9 anti-malarial, antimicrobial, 10,11 anti-diarrhoeal, 12 anti-diabetic, 5,13,14 hepatoprotective, 14,15 and insecticide. 16,17 The previous phytochemical studies of C. rotundus L. led to the isolation of sesquiterpenes, 13,[18][19][20][21][22][23] flavonoids, 3,5,8,24,25 phenylpropanoids, 5,26,27 phenolic acids, 5,26 alkaloids, 28 and saponins. 29 In 2013 Zhou and Zhang reported the isolation of iridoid glycosides from C. rotundus rhizomes.…”

Chemical Composition of the Essential Oils of Cyperus rotundus L. from South Africa

“…A number of pharmacological and biological activities including anti- Candida , anti-inflammatory, antidiabetic, antidiarrhoeal, cytoprotective, antimutagenic, antimicrobial, antibacterial, antioxidant, cytotoxic and apoptotic, anti-pyretic and analgesic activities have been reported for this plant [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 ]. Previous phytochemical studies on C. rotundus revealed the presence of alkaloids, flavonoids, tannins, starch, glycosides and furochromones, and many novel sesquiterpenoids [ 9 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ].…”