Zbigniew Sroka

Summary

Country: Poland

Publications

  1. ncbi Antiradical and anti-H2O2 properties of polyphenolic compounds from an aqueous peppermint extract
    Zbigniew Sroka
    Department of Pharmacognosy, Wrocław Medical University, pl Nankiera 1, 50 140 Wrocław, Poland
    Z Naturforsch C 60:826-32. 2005
  2. ncbi Antioxidative and antiradical properties of plant phenolics
    Zbigniew Sroka
    Department of Pharmacognosy, Wrocław University of Medicine, Poland
    Z Naturforsch C 60:833-43. 2005
  3. ncbi Phenolic extracts from meadowsweet and hawthorn flowers have antioxidative properties
    Z Sroka
    Department of Pharmacognosy, Wrocław University of Medicine, Poland
    Z Naturforsch C 56:739-44. 2001
  4. ncbi Antiradical activity of hydrolyzed and non-hydrolyzed extracts from Helichrysi inflorescentia and its phenolic contents
    Zbigniew Sroka
    Department of Pharmacognosy, Wrocłlaw University of Medicine, Wrocłlaw, Poland
    Z Naturforsch C 59:363-7. 2004
  5. ncbi [Low-molecular antioxidant compounds of natural origin]
    Zbigniew Sroka
    Katedra i Zakład Farmakognozji, Akademii Medycznej we Wrocławiu
    Postepy Hig Med Dosw (Online) 59:34-41. 2005
  6. ncbi Hydrogen peroxide scavenging, antioxidant and anti-radical activity of some phenolic acids
    Z Sroka
    Department of Pharmacognosy, Wroclaw University of Medicine, pl Nankiera 1, 50 140, Wroclaw, Poland
    Food Chem Toxicol 41:753-8. 2003
  7. doi  The antiradical activity of some plant raw materials and extracts obtained from these raw materials
    Aleksandra Kasprzyk
    Department of Pharmacognosy, Wrocław Medical University, Wrocław, Poland
    Postepy Hig Med Dosw (Online) 66:146-52. 2012
  8. ncbi Investigation of antiradical potential of different kinds of teas and extracts from these teas using antiradical activity units (TAU)
    Damian Wojciechowski
    Department of Pharmacognosy, Wrocław Medical University, Wrocław, Poland
    Postepy Hig Med Dosw (Online) 65:796-803. 2011
  9. ncbi The screening analysis of antiradical activity of some plant extracts
    Zbigniew Sroka
    Department of Pharmacognosy, Wrocław Medical University, Wrocław, Poland
    Postepy Hig Med Dosw (Online) 60:563-70. 2006
  10. doi Antioxidant activity of selected phenols estimated by ABTS and FRAP methods
    Izabela Biskup
    Department of Pharmacognosy, Silesian Piasts Wrocław Medical University, Wrocław, Poland
    Postepy Hig Med Dosw (Online) 67:958-63. 2013

Collaborators

  • Grazyna Zgórka
  • Izabela Fecka
  • Beata Zbikowska
  • Andrzej Gamian
  • Alina Sowa
  • Roman Franiczek
  • Izabela Biskup
  • Aleksandra Kasprzyk
  • Damian Wojciechowski
  • Grażyna Połukord
  • Barbara Krzyzanowska
  • Aleksandra Szykuła
  • Iwona Golonka

Detail Information

Publications13

  1. ncbi Antiradical and anti-H2O2 properties of polyphenolic compounds from an aqueous peppermint extract
    Zbigniew Sroka
    Department of Pharmacognosy, Wrocław Medical University, pl Nankiera 1, 50 140 Wrocław, Poland
    Z Naturforsch C 60:826-32. 2005
    ..Our results suggest that eriocitrin is a powerful peppermint antioxidant and a free radical scavenger...
  2. ncbi Antioxidative and antiradical properties of plant phenolics
    Zbigniew Sroka
    Department of Pharmacognosy, Wrocław University of Medicine, Poland
    Z Naturforsch C 60:833-43. 2005
    ..The substitution of a methoxy group in ortho position to the OH in monophenols seems to favour the antioxidative activity of the former...
  3. ncbi Phenolic extracts from meadowsweet and hawthorn flowers have antioxidative properties
    Z Sroka
    Department of Pharmacognosy, Wrocław University of Medicine, Poland
    Z Naturforsch C 56:739-44. 2001
    ..The residues from meadowsweet flowers exhibited stronger antioxidative properties than residues obtained from hawthorn inflorescence and can be recommended as margarine preservatives...
  4. ncbi Antiradical activity of hydrolyzed and non-hydrolyzed extracts from Helichrysi inflorescentia and its phenolic contents
    Zbigniew Sroka
    Department of Pharmacognosy, Wrocłlaw University of Medicine, Wrocłlaw, Poland
    Z Naturforsch C 59:363-7. 2004
    ..We concluded that the hydrolysis process led to a significant increase of free caffeic acid (strong antioxidant) concentration resulting in increased antiradical activity of residue C...
  5. ncbi [Low-molecular antioxidant compounds of natural origin]
    Zbigniew Sroka
    Katedra i Zakład Farmakognozji, Akademii Medycznej we Wrocławiu
    Postepy Hig Med Dosw (Online) 59:34-41. 2005
    ..In this study, the in vivo and in vitro antioxidant and antiradical activities of some antioxidants contained in vegetable foods as well as the possibility of their prooxidant activity are described...
  6. ncbi Hydrogen peroxide scavenging, antioxidant and anti-radical activity of some phenolic acids
    Z Sroka
    Department of Pharmacognosy, Wroclaw University of Medicine, pl Nankiera 1, 50 140, Wroclaw, Poland
    Food Chem Toxicol 41:753-8. 2003
    ..The model of an ortho substitution of hydroxyl groups to the aromatic ring seems to be adequate for antioxidant and H(2)O(2) or DPPH(*) scavenging activity of phenolic acids...
  7. doi  The antiradical activity of some plant raw materials and extracts obtained from these raw materials
    Aleksandra Kasprzyk
    Department of Pharmacognosy, Wrocław Medical University, Wrocław, Poland
    Postepy Hig Med Dosw (Online) 66:146-52. 2012
    ..In this situation one should provide the organism with powerful antioxidants as a medicine or in the diet. A rich source of strong antioxidants such as phenolic compounds is plant raw materials, which are the subject of our study...
  8. ncbi Investigation of antiradical potential of different kinds of teas and extracts from these teas using antiradical activity units (TAU)
    Damian Wojciechowski
    Department of Pharmacognosy, Wrocław Medical University, Wrocław, Poland
    Postepy Hig Med Dosw (Online) 65:796-803. 2011
    ..Antiradical activity of extracts and raw materials was measured using DPPH and ABTS(•+) radicals...
  9. ncbi The screening analysis of antiradical activity of some plant extracts
    Zbigniew Sroka
    Department of Pharmacognosy, Wrocław Medical University, Wrocław, Poland
    Postepy Hig Med Dosw (Online) 60:563-70. 2006
    ..In this paper the antiradical activities of some plant raw materials were investigated...
  10. doi Antioxidant activity of selected phenols estimated by ABTS and FRAP methods
    Izabela Biskup
    Department of Pharmacognosy, Silesian Piasts Wrocław Medical University, Wrocław, Poland
    Postepy Hig Med Dosw (Online) 67:958-63. 2013
    ..Too high level of free radicals leads to cell and tissue damage, which may cause asthma, Alzheimer disease, cancers, etc. Taking phenolics with the diet as supplements or natural medicines is important for homeostasis of the organism...
  11. doi Antimicrobial and Antiradical Activity of Extracts Obtained from Leaves of Five Species of the Genus Bergenia: Identification of Antimicrobial Compounds
    Beata Zbikowska
    1 Department of Pharmacognosy, Faculty of Pharmacy, Wrocław Medical University, Wrocław, Poland
    Microb Drug Resist . 2017
    ..Additional experiments using artificially prepared mixtures of phenolic compounds and hydroquinone allowed us to conclude that the most active antimicrobial substance is hydroquinone...
  12. pmc Analysis of Polyphenolic Compounds in Extracts from Leaves of Some Malus domestica Cultivars: Antiradical and Antimicrobial Analysis of These Extracts
    Alina Sowa
    Department of Pharmacognosy, Faculty of Pharmacy, Wrocław Medical University, ul Borowska 211A, Wrocław, Poland
    Biomed Res Int 2016:6705431. 2016
    ..In water extract the contribution of phloridzin was between 38.9 and 55.2%, chlorogenic acid 22.7 and 36.1%, and hyperoside 12.2 and 13.3%...
  13. doi The antiradical activity of some selected flavones and flavonols. Experimental and quantum mechanical study
    Zbigniew Sroka
    Department of Pharmacognosy, Wrocław Medical University, ul Borowska 211, 50 556, Wroclaw, Poland
    J Mol Model 21:307. 2015
    ..We observe strong negative Spearman's rank order correlations between minimal HAE and antiradical activity of flavonoids in all three tests and double-tailed rejection P values are less than 0.001...