Dan Stærk

Dan Stærk

Head of Department, Visiting professor

ORCID: 0000-0003-0074-298X

Publication year:
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51 - 100 out of 229Page size: 50
  1. 2009
  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 2010
  17. 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

  18. 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

  19. 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

  20. 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

  21. 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

  22. 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

  23. 2011
  24. 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

  25. 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

  26. 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

  27. 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

  28. 2012
  29. 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

  30. 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

  31. 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

  32. 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

  33. 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

  34. 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

  35. 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

  36. 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

  37. 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

  38. 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

  39. 2013
  40. 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

  41. 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

  42. 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

  43. 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

  44. 2014
  45. 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

  46. 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

  47. 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

  48. 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

  49. 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

  50. 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

  51. 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

  52. 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

  53. 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

  54. 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

  55. 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

  56. 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

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