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Molecules 2012, 17(9), 11156-11172; doi:10.3390/molecules170911156
Article

Antioxidant Profile of Trifolium pratense L.

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Received: 20 August 2012; in revised form: 5 September 2012 / Accepted: 7 September 2012 / Published: 18 September 2012
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Abstract: In order to examine the antioxidant properties of five different extracts of Trifolium pratense L. (Leguminosae) leaves, various assays which measure free radical scavenging ability were carried out: 1,1-diphenyl-2-picrylhydrazyl, hydroxyl, superoxide anion and nitric oxide radical scavenger capacity tests and lipid peroxidation assay. In all of the tests, only the H2O and (to some extent) the EtOAc extracts showed a potent antioxidant effect compared with BHT and BHA, well-known synthetic antioxidants. In addition, in vivo experiments were conducted with antioxidant systems (activities of GSHPx, GSHR, Px, CAT, XOD, GSH content and intensity of LPx) in liver homogenate and blood of mice after their treatment with extracts of T. pratense leaves, or in combination with CCl4. Besides, in the extracts examined the total phenolic and flavonoid amounts were also determined, together with presence of the selected flavonoids: quercetin, luteolin, apigenin, naringenin and kaempferol, which were studied using a HPLC-DAD technique. HPLC-DAD analysis showed a noticeable content of natural products according to which the examined Trifolium pratense species could well be regarded as a promising new source of bioactive natural compounds, which can be used both as a food supplement and a remedy.
Keywords: Trifolium pratense; antioxidant activity; flavonoids; biochemical parameters Trifolium pratense; antioxidant activity; flavonoids; biochemical parameters
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Kaurinovic, B.; Popovic, M.; Vlaisavljevic, S.; Schwartsova, H.; Vojinovic-Miloradov, M. Antioxidant Profile of Trifolium pratense L.. Molecules 2012, 17, 11156-11172.

AMA Style

Kaurinovic B, Popovic M, Vlaisavljevic S, Schwartsova H, Vojinovic-Miloradov M. Antioxidant Profile of Trifolium pratense L.. Molecules. 2012; 17(9):11156-11172.

Chicago/Turabian Style

Kaurinovic, Biljana; Popovic, Mira; Vlaisavljevic, Sanja; Schwartsova, Heidy; Vojinovic-Miloradov, Mirjana. 2012. "Antioxidant Profile of Trifolium pratense L.." Molecules 17, no. 9: 11156-11172.


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