References
- Yang , B. , Kotani , A. , Arai , K. and Kusu , F. 2001 . Estimation of the antioxidant activities of flavonoids from their oxidation potentials . Anal. Sci. , 17 : 599 – 604 .
- Pratt , D. E. 1992 . Phenolic Compounds in Food and their EffEcts on Health II 54 – 72 . Washington, DC Amer. Chem. Soc.
- Husain , S. R. , Cillard , J. and Cillard , P. 1987 . Hydroxyl radical scavenging activity of flavonoids . Phytochemistry , 26 ( 9 ) : 2489 – 2491 .
- Hertog , M. G.L. , Kromhout , D. and Aravanis , C. 1995 . Flavonoid intake and long‐term risk of coronary heart disease and cancer in the seven countries . Study. Arch. Int. Med. , 155 : 381 – 386 .
- Shahidi , F. , Wanasundara , P. and Hong , C. 1992 . Phenolic Compounds in Food and their EffEcts on Health I 214 – 222 . Washington, DC Amer. Chem. Soc.
- Amrik , L. K. 1992 . Phenolic Compounds in Food and their Effects on Health I 77 – 84 . Washington, DC Amer. Chem. Soc.
- Careri , M. , Elviri , L. , Mangia , A. and Musci , M. 2000 . Spectrophotometric and coulometric detection in the high performance liquid chromatography of flavonoids and optimization of sample treatment for the determination of quercetin in orange juice . J. Chromatogr. A , 881 : 449 – 460 .
- Schieber , A. , Keller , P. and Carle , R. 2001 . Determination of phenolic acids and flavonoids of apple and pear by high performance liquid chromatography . J. Chromatogr. A , 910 : 265 – 273 .
- Cimpan , G. and Gocan , S. 2002 . Analysis of medicinal plants by HPLC: recent approaches . J. Liq. Chromatogr. & Rel. Technol. , 25 : 2225 – 2292 .
- Serkedjieva , J. 1997 . Antiinfective activity of a plant preparation from Geranium sanguineum . L. Pharmazie , 52 ( 10 ) : 799 – 802 .
- Serkedjieva , J. 2003 . Influenza virus variants with reduced susceptibility to inhibition by a polyphenol extract from Geranium sanguineum . L. Pharmazie , 58 ( 1 ) : 53 – 57 .
- Ivancheva , S. , Manolova , N. , Serkedjieva , J. , Dimov , V. and Ivanovska , N. 1992 . Polyphenols from Bulgarian medicinal plants with anti‐infectious activity . Basic Life Sci, , 59 : 717 – 728 .
- Serkedjieva , J. and Ivancheva , S. 1999 . Antiherpes virus activity of extracts from the medicinal plant Geranium sanguineum . L. J. Ethnopharmacol. , 64 ( 1 ) : 59 – 68 .
- Zgorniak‐Nowosielska , I. , Zawilinska , B. , Manolova , N. and Serkedjieva , J. 1989 . A study on the antiviral action of a polyphenolic complex isolated from the medicinal plant Geranium sanguineum L. VIII. Inhibitory effect on the reproduction of herpes simplex virus type 1 . Acta Microbiol. Bulg, , 24 : 3 – 8 .