Dan Stærk

Dan Stærk

Head of Department, Visiting professor

ORCID: 0000-0003-0074-298X

Publication year:
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151 - 200 out of 229Page size: 50
  1. 2012
  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 2011
  8. 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

  9. 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

  10. 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

  11. 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

  12. 2010
  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 2009
  20. 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

  21. 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

  22. 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

  23. 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

  24. 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

  25. 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

  26. 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

  27. 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

  28. 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

  29. 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

  30. 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

  31. 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

  32. 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

  33. 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

  34. 2008
  35. 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

  36. 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

  37. 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

  38. 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

  39. 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

  40. 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

  41. 2007
  42. 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

  43. 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

  44. 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

  45. 2006
  46. 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

  47. 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

  48. 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

  49. 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

  50. 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

  51. 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

  52. 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

  53. 2005
  54. 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

  55. 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

  56. 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

  57. 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

  58. 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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