Dan Stærk

Dan Stærk

Head of Department, Visiting professor

ORCID: 0000-0003-0074-298X

Publication year:
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101 - 200 out of 229Page size: 100
  1. 2016
  2. Published

    HPLC-SPE-NMR for combinatorial biosynthetic investigations – expanding the landscape of diterpene structural diversity

    Kongstad, Kenneth Thermann, Andersen-Ranberg, Johan, Hamberger, B. R. & Stærk, Dan, 2016. 1 p.

    Research output: Contribution to conference › Poster › Research

  3. Published

    High-resolution PTP1B inhibition profiling combined with high-performance liquid chromatography - high-resolution mass spectrometry - solid-phase extraction - nuclear magnetic resonance spectroscopy: Proof-of-concept and antidiabetic constituents in crude extract of Eremophila lucida

    Tahtah, Y., Wubshet, S. G., Kongstad, Kenneth Thermann, Heskes, A. M., Pateraki, Irini, Møller, Birger Lindberg, Jäger, A. & Stærk, Dan, 2016, In: Fitoterapia. 110, p. 52-58 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    High-resolution α-glucosidase inhibition profiling combined with HPLC-HRMS-SPE-NMR for identification of anti-diabetic compounds in Eremanthus crotonoides (Asteraceae)

    Lana e Silva, E., Felipe Revoredo Lobo, J., Vinther, J. M., Moreira Borges, R. & Stærk, Dan, 2016, In: Molecules. 21, 6, 19 p., 782.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    Identification of PTP1B and α-glucosidase inhibitory serrulatanes from Eremophila spp. by combined use of dual high-resolution PTP1B and α-glucosidase inhibition profiling and HPLC-HRMS-SPE-NMR

    Wubshet, S. G., Tahtah, Y., Heskes, A. M., Kongstad, Kenneth Thermann, Pateraki, Irini, Hamberger, B. R., Møller, Birger Lindberg & Stærk, Dan, 2016, In: Journal of Natural Products. 79, 4, p. 1063-1072 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Published

    Molecular phylogenetics as a predictive tool in plant-based drug discovery in the genus Euphorbia L.

    Ernst, M., Saslis Lagoudakis, H., Grace, O. M., Nilsson, N., Simonsen, H. T., Horn, J. W., Stærk, Dan & Rønsted, Nina, 2016, In: Planta Medica. 82, S 01

    Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

  7. Published

    Oxidation and cyclization of Casbene in the biosynthesis of Euphorbia factors from mature seeds of Euphorbia lathyris L

    Luo, Dan, Callari, R., Hamberger, B., Wubshet, S. G., Nielsen, M. T., Andersen-Ranberg, Johan, Hallström, B. M., Cozzi, F., Heider, H., Møller, Birger Lindberg, Stærk, Dan & Hamberger, B. R., 2016, In: Proceedings of the National Academy of Sciences of the United States of America. 113, 34, p. E5082-E5089 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Screening for potential α-glucosidase and α-amylase inhibitory constituents from selected Vietnamese plants used to treat type 2 diabetes

    Trinh, T. D. B., Stærk, Dan & Jäger, A. K., 2016, In: Journal of Ethnopharmacology. 186, p. 189-195 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    Spektroskopi – Strukturopklaring vha NMR og IR: Kompendium med forelæsningsslides, tabeller og opgavesamling til en undervisningsdag i spektroskopi ved Institut for Lægemiddeldesign og Farmakologi på Det Sundhedsvidenskabelige Fakultet, Københavns Universitet.

    Stærk, Dan, 2016, 74 p.

    Research output: Book/Report › Compendium/lecture notes › Education

  10. 2015
  11. Published

    High-resolution hyaluronidase inhibition profiling combined with HPLC-HRMS-SPE-NMR for identification of anti-necrosis constituents in Clausena excavata

    Liu, Y., Stærk, Dan, Nyberg, N. & Jager, A. K., Nov 2015, In: Planta Medica. 81, 16, p. 1432-1432

    Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

  12. Published

    High-resolution α-glucosidase and radical scavenging profiling combined with HPLC-HRMS-SPE-NMR for identification of bioactive constituents in crude extract of Pueraria lobata

    Liu, B., Kongstad, Kenneth Thermann, Nyberg, N. T., Sun, Q., Jager, A. K. & Stærk, Dan, Nov 2015, In: Planta Medica. 81, 16, p. 1437-1437

    Research output: Contribution to journal › Conference abstract in journal › Research › peer-review

  13. Published

    High-resolution assays combined with HPLC for identification of antidiabetic constituents in Vietnamese plants

    Trinh, T. D. B., Stærk, Dan & Jäger, A. K., 26 Aug 2015.

    Research output: Contribution to conference › Poster › Research

  14. Published

    High-resolution snake venom inhibition profiling combined with HPLC-HRMS-SPE-NMR for identification of antivenomous constituents in Clausena excavata

    Liu, Y., Nyberg, N., Stærk, Dan & Jäger, A. K., 26 Aug 2015.

    Research output: Contribution to conference › Poster › Research

  15. Published

    High-resolution α-glucosidase and radical scavenging profiling combined with HPLC-HRMS-SPE-NMR for identification of bioactive constituents in crude extract of Pueraria lobata

    Liu, B., Kongstad, Kenneth Thermann, Nyberg, N., Qinglei, S., Jäger, A. K. & Stærk, Dan, 26 Aug 2015.

    Research output: Contribution to conference › Poster › Research

  16. Published

    Inhibitory potential of 40 medicinal plant extracts from Madagascar against enzymes linked to type 2 diabetes

    Beidokhti, M. N., Lobbens, E. S., Rasoavaivo, P., Stærk, Dan & Jäger, A. K., 26 Aug 2015.

    Research output: Contribution to conference › Poster › Research

  17. Published

    NMR-based metabolomics and hyphenated NMR techniques – a perfect match in natural products research

    Vinther, J. M., Wubshet, S. G. & Stærk, Dan, Aug 2015, Ethnopharmacology - a Reader. Heinrich, M. & Jäger, A. K. (eds.). Chichester: Wiley, p. 63-74

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  18. Published

    Fungal plasma membrane H+-ATPase inhibitory activity of o-hydroxybenzylated flavanones and chalcones from Uvaria chamae P. Beauv

    Kongstad, Kenneth Thermann, Wubshet, S. G., Kjellerup, L., winther, A. L. & Stærk, Dan, 20 Jun 2015, In: Fitoterapia. 105, p. 102-106 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    Dual High-Resolution α-Glucosidase and Radical Scavenging Profiling Combined with HPLC-HRMS-SPE-NMR for Identification of Minor and Major Constituents Directly from the Crude Extract of Pueraria lobata

    Liu, B., Kongstad, Kenneth Thermann, Qinglei, S., Nyberg, N., Jäger, A. & Stærk, Dan, 13 Feb 2015, In: Journal of Natural Products. 78, 2, p. 294–300 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Combined use of high-resolution α-glucosidase inhibition profiling and HPLC-HRMS-SPE-NMR for investigation of antidiabetic principles in crude plant extracts

    Kongstad, Kenneth Thermann, Özdemir, C., Barzak, A., Wubshet, S. G. & Stærk, Dan, 5 Feb 2015, In: Journal of Agricultural and Food Chemistry. 63, 8, p. 2257-2263 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    High-resolution bioactivity profiling combined with HPLC-HRMS-SPE-NMR: accelerated identification of bioactive constituents in food and medicinal plants

    Stærk, Dan, 2015.

    Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  22. Published

    High-resolution bioactivity profiling combined with HPLC-HRMS-SPE-NMR: α-glucosidase inhibitors and acetylated ellagic acid rhamnosides from Myrcia palustris DC. (Myrtaceae)

    Wubshet, S. G., Moresco, H. H., Tahtah, Y., Brighente, I. M. C. & Stærk, Dan, 2015, In: Phytochemistry. 116, p. 246-252 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. Published

    High-resolution hyaluronidase inhibition profiling combined with HPLC-HRMS-SPE-NMR for identification of anti-necrosis constituents in Chinese plants used to treat snakebite

    Liu, Y., Stærk, Dan, Nielsen, M. N., Nyberg, N. & Jäger, A. K., 2015, In: Phytochemistry. 119, p. 62-69 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    High-resolution snake venom inhibition profiling combined with HPLC-HRMS-SPE-NMR for identification of antivenomous constituents in Clausena excavata

    Liu, Y., Nyberg, N., Stærk, Dan & Jäger, A., 2015.

    Research output: Contribution to conference › Poster › Research

  25. Published

    High-resolution α-glucosidase and radical scavenging profiling combined with HPLC-HRMS-SPE-NMR for identification of bioactive constituents in crude extract of Pueraria lobata

    Liu, B., Kongstad, Kenneth Thermann, Nyberg, N., Qinglei, S., Jäger, A. & Stærk, Dan, 2015.

    Research output: Contribution to conference › Poster › Research

  26. Published

    Identification of Fungal Plasma Membrane H+-ATPase Inhibitors in Lecaniodiscus cupanioides by HPLC-HRMS-SPE-NMR

    Straadt, I. K., Kongstad, Kenneth Thermann & Stærk, Dan, 2015.

    Research output: Contribution to conference › Poster › Research

  27. Published

    Intact penetratin metabolite permeates across Caco-2 monolayers

    Birch, D., Christensen, M. V., Stærk, Dan, Franzyk, Henrik & Nielsen, Hanne Mørck, 2015.

    Research output: Contribution to conference › Poster › Research

  28. Published

    Investigation of skin permeation, ex vivo inhibition of venom-induced tissue destruction, and wound healing of African plants used against snakebites

    Schmidt, M. M., Stærk, Dan, Nielsen, Hanne Mørck, Brandner, J. M., Diallo, D., Kusamba Zacharie, C., Van Staden, J. & Jäger, A., 2015, In: Journal of Ethnopharmacology. 165, p. 1-8

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. Published

    Magnetic ligand fishing as a targeting tool for HPLC-HRMS-SPE-NMR: α-glucosidase inhibitory ligands and alkylresorcinol glycosides from Eugenia catharinae.

    Wubshet, S. G., Brighente, I. M. C., Moaddel, R. & Stærk, Dan, 2015, In: Journal of Natural Products. 78, 11, p. 2657-2665 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. Published

    NMR-based metabolomics for identification of α-amylase inhibitors in rowan berries (Sorbus spp.)

    Broholm, S. L., Gramsbergen, S., Nyberg, N., Jäger, A. & Stærk, Dan, 2015. 1 p.

    Research output: Contribution to conference › Poster › Research

  31. Published

    Triple aldose reductase/α-glucosidase/radical scavenging high-resolution profiling combined with high-performance liquid chromatography – high-resolution mass spectrometry – solid-phase extraction – nuclear magnetic resonance spectroscopy for identification of antidiabetic constituents in crude extract of Radix Scutellariae

    Tahtah, Y., Kongstad, Kenneth Thermann, Wubshet, S. G., Nyberg, N., Jønsson, L. H., Jäger, A. K., Qinglei, S. & Stærk, Dan, 2015, In: Journal of Chromatography A. 1408, p. 125-132 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. 2014
  33. Published

    African plants for inhibition of necrotic enzymes from snake venom

    Schmidt, M. M., Nielsen, L., Søgaard, S., Stærk, Dan, Rønsted, Nina, Diallo, D., Kusamba Zacharie, C., Van Staden, J. & Jäger, A. K., 2014.

    Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  34. Published

    Analogues of the natural product Sinefungin as inhibitors of EHMT1 and EHMT2

    Devkota, K., Lohse, B., Liu, Q., Wang, M., Stærk, Dan, Berthelsen, J. & Clausen, Rasmus Prætorius, 2014, In: A C S Medicinal Chemistry Letters. 5, 4, p. 293-297

    Research output: Contribution to journal › Letter › Research › peer-review

  35. Published

    Assessment of constituents in Allium by multivariate data analysis, high-resolution α-glucosidase inhibition assay and HPLC-SPE-NMR

    Schmidt, J. S., Nyberg, N. & Stærk, Dan, 2014, In: Food Chemistry. 161, p. 192-198 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  36. Published

    High-resolution Assays Combined with HPLC-HRMS-SPE-ttNMR for Identification of Antidiabetic Compounds in root of Scutellaria Baicalensis

    Tahtah, Y., Jønsson, L. H., Nyberg, N., Jäger, A. & Stærk, Dan, 2014.

    Research output: Contribution to conference › Poster › Research

  37. Published

    High-resolution bacterial growth inhibition profiling combined with HPLC-HRMS-SPE-NMR for identification of antibacterial constituents in Chinese plants used to treat snakebites

    Liu, Y., Nielsen, M., Stærk, Dan & Jäger, A., 2014, In: Journal of Ethnopharmacology. 155, 2, p. 1276-1283 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. Published

    High-resolution bioactivity profiling combined with hyphenated HPLC-SPE-NMR – Investigation of functional food and plants with antifungal constituents

    Stærk, Dan, 2014.

    Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

  39. Published

    High-resolution screening combined with HPLC–HRMS–SPE–NMR for identification of fungal plasma membrane H+-ATPase inhibitors from plants

    Kongstad, Kenneth Thermann, Wubshet, S. G., Johannesen, A., Kjellerup, L., winther, A. L., Jäger, A. & Stærk, Dan, 2014, In: Journal of Agricultural and Food Chemistry. 62, 24, p. 5595-5602 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    High-resolution α-amylase assay combined with high-performance liquid chromatography−solid-phase extraction−nuclear magnetic resonance spectroscopy for expedited identification of α-amylase inhibitors – proof of concept and α-amylase inhibitor in cinnamon.

    Okutan, L., Kongstad, Kenneth Thermann, Jäger, A. & Stærk, Dan, 2014, In: Journal of Agricultural and Food Chemistry. 62, 47, p. 11465-11471 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. Published

    Hyaluronidase, phospholipase A2 and protease inhibitory activity of plants used in traditional treatment of snakebite-induced tissue necrosis in Mali, DR Congo and South Africa

    Schmidt, M. M., Nielsen, L. H., Søgaard, S. V., Stærk, Dan, Rønsted, Nina, Diallo, D., Kusamba Zacharie, C., van Staden, J. & Jäger, A., 2014, In: Journal of Ethnopharmacology. 157, p. 171-180 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  42. Published

    Identification of Fungal H+-ATPase Inhibitors by Microfractionation and HPLC-HRMS-SPE-NMR

    Wubshet, S. G., Kongstad, Kenneth Thermann, Johannesen, A., Nyberg, N., Jäger, A., Kjellerup, L., Vinther, A. & Stærk, Dan, 2014.

    Research output: Contribution to conference › Poster › Research

  43. Published

    Prolonged Shelf Life in Fermented Milk Products Investigated by Bioassay-Guided Chemometrics

    Vinther, J. M., Garrigues, C., Nyberg, N., Jäger, A., Franzyk, Henrik & Stærk, Dan, 2014.

    Research output: Contribution to conference › Poster › Research

  44. Published

    Secondary metabolite comparison of the species within the Heterobasidion annosum s.l. complex

    Hansson, D., Wubshet, S. G., Olson, Å., Karlsson, M., Stærk, Dan & Broberg, A., 2014, In: Phytochemistry. 108, p. 243-251 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  45. 2013
  46. Published

    Coupling HPLC-SPE-NMR with a microplate-based high-resolution antioxidant assay for efficient analysis of antioxidants in food – Validation and proof-of-concept study with caper buds

    Wiese, S., Wubshet, S. G., Nielsen, J. & Stærk, Dan, 2013, In: Food Chemistry. 141, 4, p. 4010-4018

    Research output: Contribution to journal › Journal article › Research › peer-review

  47. Published

    Coupling of a high-resolution monoamine oxidase-A inhibitor assay and HPLC-SPE-NMR for advanced bioactivity-profiling of plant extracts

    Grosso, C., Jäger, A. & Stærk, Dan, 2013, In: Phytochemical Analysis. 24, 2, p. 141-147

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Published

    High-resolution screening combined with HPLC–HRMS–SPE–NMR for identification of potential health-promoting constituents in sea aster and searocket - New nordic food ingredients

    Wubshet, S. G., Schmidt, J. S., Wiese, S. & Stærk, Dan, 2013, In: Journal of Agricultural and Food Chemistry. 61, 36, p. 8616-8623

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. Published

    Targeting high-performance liquid chromatography-high-resolution mass spectrometry-solid-phase extraction-nuclear magnetic resonance analysis with high-resolution radical scavenging profiles - bioactive secondary metabolites from the endophytic fungus Penicillium namyslowskii

    Wubshet, S. G., Nyberg, N., Tejesvi, M. V., Pirttilä, A. M., Kajula, M., Mattila, S. & Stærk, Dan, 2013, In: Journal of Chromatography A. 1302, p. 34-39

    Research output: Contribution to journal › Journal article › Research › peer-review

  50. 2012
  51. Published

    Comprehensive analysis of commercial willow bark extracts by new technology platform: combined use of metabolomics, high-perfomance liquid chromatography-solid-phase extraction-nuclear magnetic resonance spectroscopy and high-resolution radical scavenging assay

    Agnolet, S., Wiese, S., Verpoorte, R. & Stærk, Dan, 2012, In: Journal of Chromatography A. 1262, p. 130-137 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  52. Published

    Development of a bioassay-coupled HPLC-SPE-ttNMR platform for identification of α-glucosidase inhibitors in apple peel (Malus × domestica Borkh.)

    Schmidt, J. S., Lauridsen, M. B., Dragsted, Lars Ove, Nielsen, J. & Stærk, Dan, 2012, In: Food Chemistry. 135, 3, p. 1692-1699 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  53. Published

    Effect of residual water and microwave heating on half-lifes of reagents and reactive intermediates in peptide synthesis

    Shelton, A. P. T., Pedersen, S. L., Stærk, Dan & Jensen, Knud Jørgen, 2012, In: Chemistry: A European Journal. 18, 29, p. 9024-9031 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  54. Published

    Fremtidens funktionelle fødevarer - et vigtigt middel i kampen mod livsstilssygdomme

    Stærk, Dan, 2012, Profil/Fødevarer & Sundhed. København: Københavns Universitet, Kommunikation, p. 18-19 2 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication

  55. Published

    High resolution antioxidant assay guided HPLC-HRMS-SPE-NMR analysis of Penicillium namyslowskii extract

    Wubshet, S. G., Nyberg, N. & Stærk, Dan, 2012.

    Research output: Contribution to conference › Poster › Research

  56. Published

    Identification of α-glucosidase inhibitors in apple peel - a chemometric approach

    Schmidt, J. S., Daykin, C. A. & Stærk, Dan, 2012. 1 p.

    Research output: Contribution to conference › Poster › Research

  57. Published

    Improved solid-phase synthesis and study of arylopeptoids with conformation-directing side chains

    Hjelmgaard, T., Faure, S., De Santis, E., Stærk, Dan, Alexander, B. D., Edwards, A. A., Taillefumier, C. & Nielsen, J., 2012, In: Tetrahedron. 68, 23, p. 4444-4454 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  58. Published

    Production of novel fusarielins by ectopic activation of the polyketide synthase 9 cluster in Fusarium graminearum

    Sørensen, J. L., Hansen, F. T., Søndergaard, T. E., Stærk, Dan, Lee, T. V., Wimmer, R., Klitgaard, L. G., Purup, S., Giese, H. & Frandsen, R. J. N., 2012, In: Environmental Microbiology. 14, 5, p. 1159-1170 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  59. Published

    Synthesis and antiangiogenic activity of N-alkylated levamisole derivatives

    Hansen, A. N., Bendiksen, C. D., Sylvest, L., Friis, T., Stærk, Dan, Jørgensen, Flemming Steen, Olsen, Christian Adam & Houen, G., 2012, In: P L o S One. 7, 9, 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  60. Published

    Vejledning til laboratorieøvelser i 'Organisk Kemi for Biovidenskab'

    Stærk, Dan, 2012, Institut for Grundvidenskab og Miljø, Københavns Universitet. 74 p.

    Research output: Book/Report › Compendium/lecture notes › Education

  61. 2011
  62. Published

    Production of unusual dispiro metabolites in Pestalotiopsis virgatula endophyte cultures: HPLC-SPE-NMR, electronic circular dichroism, and time-dependent density-functional computation study

    Kesting, J. R., Olsen, L., Stærk, Dan, Tejesvi, M. V., Kini, K. R., Prakash, H. S. & Jaroszewski, J. W., 26 Sep 2011, In: Journal of Natural Products. 74, 10, p. 2206-2215

    Research output: Contribution to journal › Journal article › Research › peer-review

  63. Published

    Efficient and versatile COMU-mediated solid-phase submonomer synthesis of arylopeptoids (oligomeric N-substituted aminomethyl benzamides)

    Hjelmgaard, T., Faure, S., Stærk, Dan, Taillefumier, C. & Nielsen, J., 2011, In: Organic & Biomolecular Chemistry. 9, p. 6832-6843 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  64. Published

    Expedient solution-phase synthesis and NMR studies of arylopeptoids

    Hjelmgaard, T., Faure, S., Stærk, Dan, Taillefumier, C. & Nielsen, J., 2011, In: European Journal of Organic Chemistry. 2011, 22, p. 4121-4132 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  65. Published

    Two novel classes of enzymes are required for the biosynthesis of aurofusarin in Fusarium graminearum

    Frandsen, R. J. N., Schütt, C. W. H., Lund, B. L. W., Stærk, Dan, Nielsen, J., Olsson, S. & Giese, H., 2011, In: Journal of Biological Chemistry. 286, 12, p. 10419-10428 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  66. 2010
  67. Published

    1H NMR-based metabolomics combined with HPLC-PDA-MS-SPE-NMR for investigation of standardized Ginkgo biloba preparations

    Agnolet, S., Jaroszewski, J. W., Verpoorte, R. & Stærk, Dan, 2010, In: Metabolomics. 6, 2, p. 292-302 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  68. Published

    Bisbenzylisoquinoline alkaloids as markers of Atherospermataceae: tetrandrine and fangchinoline from Laureliopsis philippiana

    Stanstrup, Jan, Schmidt, J. S., Rasmussen, H. B., Mølgaard, Per, Guzmán, A. & Stærk, Dan, 2010, In: Biochemical Systematics and Ecology. 38, 3, p. 450-453 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  69. Published

    Butenolides from plant-derived smoke: natural plant-growth regulators with antagonistic actions on seed germination

    Light, M. E., Burger, B. V., Stærk, Dan, Kohout, L. & Van Staden, J., 2010, In: Journal of Natural Products. 73, 2, p. 267-269 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  70. Published

    Itoside A and 4-hydroxytremulacin from Dovyalis caffra and Dovyalis zeyheri

    Stanstrup, Jan, Rusch, A., Agnolet, S., Rasmussen, H. B., Mølgaard, Per, Van Staden, J., Stafford, G. I. & Stærk, Dan, 2010, In: Biochemical Systematics and Ecology. 38, 3, p. 346-348 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  71. Published

    NMR for gymnasieelever: forelæsningsslides, tabeller og opgavesamling til en NMR undervisningssession for gymnasieelever

    Stærk, Dan, 2010, Institut for Grundvidenskab og Miljø, Københavns Universitet. 39 p.

    Research output: Book/Report › Compendium/lecture notes › Education

  72. Published

    New resistance-correlated saponins from the insect-resistant crucifer Barbarea vulgaris

    Nielsen, Nikoline Juul, Nielsen, J. & Stærk, Dan, 2010, In: Journal of Agricultural and Food Chemistry. 58, 9, p. 5509-5514 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  73. 2009
  74. Published

    1H NMR-based metabolomics applied to study of complex pharmaceutical extracts of Ginkgo biloba

    Agnolet, S., Jaroszewski, J. W. & Stærk, Dan, 2009.

    Research output: Contribution to conference › Conference abstract for conference › Research

  75. Published

    1H-NMR based metabolomics applied to standardized Ginkgo biloba preparations

    Agnolet, S., Jaroszewski, J. W., Verpoorte, R. & Stærk, Dan, 2009.

    Research output: Contribution to conference › Conference abstract for conference › Research

  76. Published

    1H-NMR based metabolomics applied to standardized Ginkgo biloba preparations

    Agnolet, S., Jaroszewski, J. W., Verpoorte, R. & Stærk, Dan, 2009.

    Research output: Contribution to conference › Conference abstract for conference › Research

  77. Published

    Accelerated dereplication of crude extracts using HPLC-PDA-MS-SPE-NMR

    Stærk, Dan, Kesting, J. R., Sairafianpour, M., Witt, M., Asili, J., Emami, S. A. & Jaroszewski, J. W., 2009, In: Phytochemistry. 70, 8, p. 1055-1061 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  78. Published

    Antimalarial sesquiterpene lactones from Distephanus angulifolius

    Pedersen, M. M., Chukwujekwu, J. C., Lategan, C. A., van Staden, J., Smith, P. J. & Stærk, Dan, 2009, In: Phytochemistry. 70, 5, p. 601-607 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  79. Published

    Application of Rotated PCA Models to Facilitate Interpretation of Metabolite Profiles: Commercial Preparations of St. John's Wort

    Lawaetz, A. J., Schmidt, B., Stærk, Dan, Jaroszewski, J. W. & Bro, Rasmus, 2009, In: Planta Medica.

    Research output: Contribution to journal › Journal article › Research › peer-review

  80. Published

    Application of rotated PCA models to facilitate interpretation of metabolite profiles: commercial preparations of St. John's wort

    Lawaetz, A. J., Schmidt, B., Stærk, Dan, Jaroszewski, J. W. & Bro, Rasmus, 2009, In: Planta Medica. 75, 3, p. 271-279 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  81. Published

    HPLC-SPE-NMR identification of a novel metabolite containing the benzo[c]oxepin skeleton from the endophytic fungus Pestalotiopsis virgatula culture

    Kesting, J. R., Stærk, Dan, Tejesvi, M. V., Kini, K. R., Prakash, H. S. & Jaroszewski, J. W., 2009, In: Planta Medica. 75, 10, p. 1104-1106 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  82. Published

    Hyphenation of HPLC, SPE and NMR for analysis of complex mixtures

    Stærk, Dan, 2009.

    Research output: Contribution to conference › Conference abstract for conference › Research

  83. Published

    Identification of reaction products between drug substances and excipients by HPLC-SPE-NMR: Ester and amide formation between citric acid and 5-aminosalicylic acid

    Larsen, J. T., Stærk, Dan, Cornett, Claus, Hansen, S. H. & Jaroszewski, J. W., 2009, In: Journal of Pharmaceutical and Biomedical Analysis. 49, p. 839-842

    Research output: Contribution to journal › Journal article › Research › peer-review

  84. Published

    New bisbenzylisoquinoline alkaloid from Laureliopsis philippiana

    Stærk, Dan, Thi, L. P., Rasmussen, H. B., Guzmán, A. & Mølgaard, Per, 2009, In: Fitoterapia. 80, 2, p. 112-114 3 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  85. Published

    Non-biased investigation of standardized Ginkgo biloba preparations by 1H NMR-based metabolomics and HPLC-PDA-MS-SPE-NMR

    Agnolet, S., Jaroszewski, J. W., Verpoorte, R. & Stærk, Dan, 2009.

    Research output: Contribution to conference › Poster › Research

  86. Published

    Non-biased investigation of standardized Ginkgo biloba preparations by 1H NMR-based metabolomics and HPLC-PDA-MS-SPE-NMR

    Agnolet, S., Jaroszewski, J. W., Verpoorte, R. & Stærk, Dan, 2009. 1 p.

    Research output: Contribution to conference › Poster › Research

  87. Published

    Piperidine and tetrahydropyridine alkaloids from Lobelia siphilitica and Hippobroma longiflora:

    Kesting, J. R., Tolderlund, I., Pedersen, A. F., Witt, M., Jaroszewski, J. W. & Stærk, Dan, 2009, In: Journal of Natural Products. 72, 2, p. 312-315 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  88. 2008
  89. Published

    HPLC-NMR Techniques for Plant Extract Analysis

    Stærk, Dan, Lambert, M. & Jaroszewski, J. W., 20 Mar 2008, Medicinal Plant Biotechnology: From Basic Research to Industrial Applications. Wiley-VCH, p. 29-48 20 p.

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  90. Published

    Combining HPLC-PDA-MS-SPE-NMR with circular dichroism for complete natural product characterization in crude extracts: Levorotatory gossypol in Thespesia danis

    Sprogøe, K., Stærk, Dan, Ziegler, H. L., Jensen, T. H., Holm-Møller, S. B. & Jaroszewski, J. W., 2008, In: Journal of Natural Products. 71, 4, p. 516-519

    Research output: Contribution to journal › Journal article › Research › peer-review

  91. Published

    Combining PARAFAC analysis of HPLC-PDA profiles and structural characterization using HPLC-PDA-SPE-NMR-MS experiments: commercial preparations of St. John's Wort

    Schmidt, B., Jaroszewski, J. W., Bro, Rasmus, Witt, M. & Stærk, Dan, 2008, In: Analytical Chemistry. 80, 6, p. 1978-1987 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  92. Published

    Lægemidler fra naturstoffer: fortid eller fremtid?

    Jaroszewski, J. W., Christensen, Søren Brøgger, Franzyk, Henrik, Stærk, Dan & Ziegler, H., 2008, In: Lægemiddelforskning. p. 4-6

    Research output: Contribution to journal › Journal article › Communication

  93. Published

    Microwave-Assisted Ring-Opening of Activated Aziridines with Resin-Bound Amines

    Franzyk, Henrik, Crestey, F., Witt, M., Frydenvang, Karla Andrea, Stærk, Dan & Jaroszewski, J., 2008, In: Synfacts. 7, p. 769

    Research output: Contribution to journal › Journal article › Research › peer-review

  94. Published

    Microwave-assisted ring-opening of activated aziridines with resin-bound amines

    Crestey, F., Witt, M., Frydenvang, Karla Andrea, Stærk, Dan, Jaroszewski, J. W. & Franzyk, Henrik, 2008, In: Journal of Organic Chemistry. 73, 9, p. 3566-3569 4 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  95. 2007
  96. Published

    Identification of natural products using HPLC-SPE combined with CapNMR

    Lambert, M., Wolfender, J., Stærk, Dan, Christensen, Søren Brøgger, Hostettmann, K. & Jaroszewski, J. W., 2007, In: Analytical Chemistry. 79, 2, p. 727-735

    Research output: Contribution to journal › Journal article › Research › peer-review

  97. Published

    Noter til M25-1 spektroskopi

    Stærk, Dan & Jaroszewski, J. W., 2007, København: Københavns Universitet, Det Farmaceutiske Fakultet, Institut for Medicinalkemi. 49 p.

    Research output: Book/Report › Compendium/lecture notes › Education

  98. Published

    Targeted natural product isolation guided by HPLC-SPE-NMR: constituents of Hubertia species

    Sprogøe, K., Stærk, Dan, Jäger, A. K., Adsersen, A., Hansen, S. H., Witt, M., Landbo, A. R., Meyer, A. S. & Jaroszewski, J. W., 2007, In: Journal of Natural Products. 70, 9, p. 1472-1477

    Research output: Contribution to journal › Journal article › Research › peer-review

  99. 2006
  100. Published

    Discovering new natural products directly from crude extracts by HPLC-SPE-NMR: chinane diterpenes in Harpagophytum procumbens

    Clarkson, C., Stærk, Dan, Hansen, S. H., Smith, P. J. & Jaroszewski, J. W., 2006, In: Journal of Natural Products. 69, p. 527-530

    Research output: Contribution to journal › Journal article › Research › peer-review

  101. Published

    Dovyalicin-type spermidine alkaloids from Dovyalis species

    Rasmussen, B., Nkurunziza, A., Witt, M., Oketch-Rabah, H. A., Jaroszewski, J. W. & Stærk, Dan, 2006, In: Journal of Natural Products. 69, p. 1300-1304

    Research output: Contribution to journal › Journal article › Research › peer-review

  102. Published

    HPLC-NMR techniques for plant extract analysis

    Stærk, Dan, Lambert, M. & Jaroszewski, J. W., 2006, Medicinal Plant Biotechnology. From Basic Research to Applications. Kayser, O. & Quax, W. J. (eds.). Weinheim: Wiley-VCH, p. 29-48

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  103. Published

    Identification of major and minor constituents of Harpagophytum procumbens (Devil's Claw) using HPLC-SPE-NMR and HPLC-ESIMS/APCIMS

    Clarkson, C., Stærk, Dan, Hansen, S. H., Smith, P. J. & Jaroszewski, J. W., 2006, In: Journal of Natural Products. 69, p. 1280-1288

    Research output: Contribution to journal › Journal article › Research › peer-review

  104. Published

    Multivariate analysis of integrated and full-resolution 1H-NMR spectral data from complex pharmaceutical preparations: St. John's wort

    Rasmussen, B., Cloarec, O., Tang, H., Stærk, Dan & Jaroszewski, J. W., 2006, In: Planta Medica. 72, p. 556-563

    Research output: Contribution to journal › Journal article › Research › peer-review

  105. Published

    Plantemetabolomer in action

    Schmidt, B., Stærk, Dan, Bro, Rasmus & Jaroszewski, J. W., 2006, In: Lægemiddelforskning. 2006, p. 4-5 2 p.

    Research output: Contribution to journal › Journal article › Research

  106. Published

    Structural analysis of complex saponins of Balanites aegyptiaca by 800 MHz 1H NMR spectroscopy

    Stærk, Dan, Chapagain, B. P., lindin, T., Wiesman, Z. & Jaroszewski, J. W., 2006, In: Magnetic Resonance in Chemistry. 44, p. 923-928

    Research output: Contribution to journal › Journal article › Research › peer-review

  107. 2005
  108. Published

    Erratum: "Naravelia zeylanica: Occurrence of primary benzamides in flowering plants" (Natural Product Research vol. 19 (3) (291-294))

    Jaroszewski, J. W., Stærk, Dan, Holm-Møller, S. B., Jensen, T. H., Franzyk, Henrik & Somanadhan, B., 1 Jun 2005, In: Natural Product Research. 19, 4, 1 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  109. Published

    Naravelia zeyanica: occurrence of primary benzamides in flowering plants

    Jaroszewski, J. W., Stærk, Dan, Holm-Møller, S. B., Jensen, T. H. & Franzyk, Henrik, 2005, In: Natural Product Research. 19, 3, p. 291-294

    Research output: Contribution to journal › Journal article › Research › peer-review

  110. Published

    Food preference and performance of the larvae of a specialist herbivore: variation among and within host-plant populations

    Leimu, R., Riipi, M. & Stærk, Dan, 2005, In: Acta Oecologica. 28, p. 325-330

    Research output: Contribution to journal › Journal article › Research › peer-review

  111. Published

    HPLC-SPE-NMR hyphenation in natural products research: optimization of analysis of Croton membranaceus extract

    Lambert, M., Stærk, Dan, Hansen, S. H. & Jaroszewski, J. W., 2005, In: Magnetic Resonance in Chemistry. 43, p. 771-775

    Research output: Contribution to journal › Journal article › Research › peer-review

  112. Published

    Hyphenation of solid-phase extraction with liquid chromatography and nuclear magnetic resonance: application of HPLC-DAD-SPE-NMR to identification of constituents of Kanahia laniflora

    Clarkson, C., Stærk, Dan, Hansen, S. H. & Jaroszewski, J. W., 2005, In: Analytical Chemistry. 77, p. 3547-3553

    Research output: Contribution to journal › Journal article › Research › peer-review

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