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Antioxidant And Vasorelaxant Activities Of Flavonoids From Amygdalus Lycioides Var. Horrida, Hossein Babaei, Omid Sadeghpour, Lutfun Nahar, Abbas Delazar, Hossein Nazemiyeh, Mohammad Reza Mansouri, Naser Poursaeid, Solmaz Asnaashari, Sedigheh Bamdad Moghadam, Satyajit Dey Sarker
Antioxidant And Vasorelaxant Activities Of Flavonoids From Amygdalus Lycioides Var. Horrida, Hossein Babaei, Omid Sadeghpour, Lutfun Nahar, Abbas Delazar, Hossein Nazemiyeh, Mohammad Reza Mansouri, Naser Poursaeid, Solmaz Asnaashari, Sedigheh Bamdad Moghadam, Satyajit Dey Sarker
Turkish Journal of Biology
Amygdalus lycioides var. horrida (Spach) Browicz (Rosaceae), also known as Prunus lycioides (Spach.) Schneid., is an endemic Iranian species of the genus Amygdalus. In Iranian traditional medicine, the aerial parts and roots of A. lycioides are used in the treatment of diabetes. Six flavonoids, i.e. quercetin 3-O-rhamnoside (1), luteolin 7-O-rhamnoside (2), isorhamnetin 3-O-rutinoside (3), kaempferol 3-O-rhamnoside (4), apigenin (5), and naringenin (6), have been isolated from the aerial parts of this plant. The structures of these compounds were elucidated by UV, MS, and NMR spectroscopic data analyses. While the antioxidant activity of these compounds was assessed by the 2,2-diphenyl-1-picryl-hydrazyl (DPPH) …
Antioxidant Activities Of Iranian Corn Silk, Mohammad Ali Ebrahimzadeh, Fereshteh Pourmorad, Samira Hafezi
Antioxidant Activities Of Iranian Corn Silk, Mohammad Ali Ebrahimzadeh, Fereshteh Pourmorad, Samira Hafezi
Turkish Journal of Biology
Traditionally corn silk (CS) has been used as diuretic, antilithiasic, uricosuric, and antiseptic. It is used for the treatment of edema as well as for cystitis, gout, kidney stones, nephritis, and prostatitis. In the present study, the antioxidant properties of ethanol-water extract from CS were estimated by different methods. Also phenol and flavonoid content of the extract were measured by Folin Ciocalteu and AlCl_3 assays. CS extract contained a significant amount of phenol and flavonoids. The percentage of DPPH radical scavenged by CS extract was 92.6 at a concentration of 1.6 mg ml^{-1}. IC_{50} of the extract and the standard …
Antioxidant Activity Of Some Common Plants, Nooman A. Khalaf, Ashok K. Shakya, Atif Al-Othman, Zaha El-Agbar, Husni Farah
Antioxidant Activity Of Some Common Plants, Nooman A. Khalaf, Ashok K. Shakya, Atif Al-Othman, Zaha El-Agbar, Husni Farah
Turkish Journal of Biology
The methanolic crude extracts of some commonly used medicinal plants were screened for their free radical scavenging properties using ascorbic acid as standard antioxidant. Free radical scavenging activity was evaluated using 1,1-diphenyl-2-picryl-hydrazyl (DPPH) free radical. The overall antioxidant activity of green tea (Camellia sinensis Linn.) was the strongest, followed in descending order by black tea (Camellia sinensis Linn.), Eugenia caryophyllus (Spreng.) Bullock and Harrison, Piper cubeba Linn., Zingiber officinale Roscoe and Piper nigrum Linn. Trigonella foenum graecum Linn. and Elettaria cardamomum (Linn.) Maton showed weak free radical scavenging activity with the DPPH method. All the methanolic extracts exhibited antioxidant activity …