Analysis of the stable free radical scavenging capability of artificial polyphenol mixtures and plant extracts by capillary electrophoresis and liquid chromatography-diode array detection-tandem mass spectrometryHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Kaljurand, MihkelJournal of chromatography A2009 / p. 2417-2423 : ill

Bioactive components of the hop strobilus : comparison of different extraction methods by capillary electrophoretic and chromatographic methodsHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Kamsol, Kristjan; Orav, Anne; Kaljurand, MihkelJournal of chromatography A2007 / p. 222-229 : ill https://www.academia.edu/60646251/Bioactive_components_of_the_hop_strobilus_Comparison_of_different_extraction_methods_by_capillary_electrophoretic_and_chromatographic_methods

Bioaktiivsete ühendite lahutamine ja antioksüdatiivsuse hindamine maavitsaliste perekonda Solanaceae kuuluvatel taimedelHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Kaljurand, MihkelXXX Eesti keemiapäevad : teaduskonverentsi teesid = 30th Estonian Chemistry Days : abstracts of scientific conference2007 / lk. 36-37

Chemical Composition and Antibacterial Effect of Mentha spp. Grown in EstoniaKapp, Karmen; Püssa, Tõnu; Orav, Anne; Roasto, Mati; Raal, Ain; Vuorela, Pia; Vuorela, Heikki; Tammela, PäiviNatural product communications2020 / 14 p https://doi.org/10.1177/1934578X20977615 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Chemical composition of red wines made from hybrid grape and common grape (Vitis vinifera L.) cultivarsPedastsaar, Priit; Vaher, Merike; Helmja, Kati; Kulp, Maria; Kaljurand, Mihkel; Karp, Kadri; Raal, Ain; Karathanos, Vaios; Püssa, TõnuProceedings of the Estonian Academy of Sciences2014 / p. 444-453 : ill https://artiklid.elnet.ee/record=b2707387*est

Comparative study of antioxidant capacity of Rheum rhaponticum root polyphenolsRaudsepp, Piret; Helmja, Kati; Raal, Ain; Vaher, Merike; Püssa, TõnuXXIVth International Conference on Polyphenols : Polyphenols Communications 2008 : Salamanca, 8th-11th July 2008. Volume 12008 / p. 231-232 : ill

Complex study of bioactive compounds in egglant (Solanum melongena)Helmja, Kati; Gorbatšova, Jelena; Vaher, Merike; Püssa, Tõnu; Kaljurand, Mihkel4th Nordic Separation Science Society (NoSSS) International Conference : Kaunas, August 26-29, 2007 : abstracts book2007 / p. 77

Composition and antibacterial effect of mint flavorings in candies and food supplementsKapp, Karmen; Orav, Anne; Roasto, Mati; Raal, Ain; Püssa, Tõnu; Vuorela, Heikki; Tammela, Päivi; Vuorela, PiaPlanta medica2020 / p. 1089−1096 https://doi.org/10.1055/a-1158-1699 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Comprehensive investigation of St.John's Worth (Hypernicum perforatum) : polyphenolic compounds, essential oils and metalsHelmja, Kati; Vaher, Merike; Orav, Anne; Viitak, Anu; Püssa, Tõnu; Kaljurand, Mihkel14th International Symposium on Separation Science : Primosten, Croatia, 30 Sept. - 3 Oct. 20082008 / p. 59

Content of essential oil, terpenoids and polyphenols in commercial chamomile (Chamomilla recutita L. Rauschert) teas from different countriesRaal, Ain; Orav, Anne; Püssa, Tõnu; Valner, Catri; Malmiste, Birgit; Arak, ElmarFood chemistry2012 / p. 632-638 : ill https://www.sciencedirect.com/science/article/pii/S0308814611013008

Evaluation of antioxidative capability of the tomato (Solanum lycopersicum) skin constituents by capillary electrophoresis and high-performanced liquid chromatographyHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Raudsepp, Piret; Kaljurand, MihkelElectrophoresis2008 / p. 3980-3988 : ill

Methods of comparative analysis of the free radical scavenging capability of components of antioxidant mixturesPüssa, Tõnu; Vaher, Merike; Helmja, Kati; Raudsepp, Piret; Kaljurand, MihkelNoSSS2009 : 5th Conference on Separation and Related Techniques by Nordic Separation Science Society : 26-29 August, 2009, Tallinn University of Technology, Estonia : abstract book and program2009 / p. 56

Oxidation products of free polyunsaturated fatty acids in wheat varietiesLevandi, Tuuli; Püssa, Tõnu; Vaher, Merike; Toomik, Peeter; Kaljurand, MihkelEuropean journal of lipid science and technology2009 / 7, p. 715-722 : ill

Polüfenoolsete ühendite antioksüdatiivsuse hindamine kapillaarelektroforeetiliselt ja vedelik-kromatograafiliseltHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Kaljurand, MihkelXXXI Eesti keemiapäevad : [28. aprill 2010, Tallinn] : teaduskonverentsi teesid = 31st Estonian Chemistry Days : abstracts of scientific conference2010 / lk. 31

Polyphenolic composition and antichlamydial effect of commercial peppermint (Mentha x piperita L.) teasKapp, Karmen; Hakala, Elina; Püssa, Tõnu; Orav, Anne; Raal, Ain; Hanski, L.Planta medica2013 / p. 1224

Principal component analysis of HPLC-MS/MS patterns of wheat (Triticum aestivum) varietiesLevandi, Tuuli; Püssa, Tõnu; Vaher, Merike; Ingver, Anne; Koppel, Reine; Kaljurand, MihkelProceedings of the Estonian Academy of Sciences2014 / p. 86-92 : ill https://artiklid.elnet.ee/record=b2665228*est

Resveratrooli sisalduse uurimine Reynoutria japonica'sAaviksaar, A.; Haga, M.; Hansen, M.; Kann, Jüri; Koel, Mihkel; Püssa, Tõnu; Vaher, MerikeXXVII Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid = 27th Estonian Chemistry Days : abstracts of scientific conference2001 / lk. 15

A study of primary oxidation products of free polyunsaturated fatty acids in wheat varietiesVaher, Merike; Levandi, Tuuli; Püssa, Tõnu; Toomik, Peeter; Kaljurand, MihkelProceedings of World Congress on Oils and Fats & 28th ISF Congress : Sydney, Australia, 27-30 September2009 / ? p

The evaluation of the oxidation capability of bioactive compounds of Solanum melongena by capillary electrophoresis and by HPLC-MS/MSHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Kaljurand, MihkelXXIVth International Conference on Polyphenols : Polyphenols Communications 2008 : Salamanca, 8th-11th July 2008. Volume 12008 / p. 165-166 : ill

Variation in the composition of the essential oils, phenolic compounds and mineral elements of Hypericum perforatum L. growing in EstoniaHelmja, Kati; Vaher, Merike; Püssa, Tõnu; Orav, Anne; Viitak, Anu; Levandi, Tuuli; Kaljurand, MihkelNatural product research2011 / p. 496-510