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List of works by Hector Koolen

7,7-Dimethylaporphine and Other Alkaloids from the Bark of Guatteria friesiana

scientific article published on 14 June 2016

An antimicrobial diketopiperazine alkaloid and co-metabolites from an endophytic strain of Gliocladium isolated from Strychnos cf. toxifera ⬇️

scientific article published on November 25, 2011

Analgesic, Anti-Inflammatory, and Antioxidant Activities of Byrsonima duckeana W. R. Anderson (Malpighiaceae).

scientific article

Anti-wrinkle and anti-whitening effects of jucá (Libidibia ferrea Mart.) extracts.

scientific article published on 13 September 2016

Antiprotozoal and antioxidant alkaloids from Alternanthera littoralis.

scientific article

Antitumor Effect of the Essential Oil from the Leaves of Aubl. (Euphorbiaceae)

scientific article published on 14 November 2018

Arcopilus amazonicus (Chaetomiaceae), a new fungal species from the Amazon rainforest native plant Paullinia cupana

scientific article

Calycophyllum spruceanum (Benth.), the Amazonian "Tree of Youth" Prolongs Longevity and Enhances Stress Resistance in Caenorhabditis elegans.

scientific article published on 27 February 2018

Calycophyllum spruceanum BENTH ameliorates acute inflammation in mice.

scientific article published on 19 March 2018

Characterization of Peptaibols Produced by a Marine Strain of the Fungus Trichoderma endophyticum via Mass Spectrometry, Genome Mining and Phylogeny-Based Prediction

scientific article published in 2023

Chemical Composition and Antioxidant, Antinociceptive, and Anti-inflammatory Activities of Four Amazonian Byrsonima Species

scientific article

Chemical composition and antimicrobial activity of the essential oils of Onychopetalum amazonicum R.E.Fr.

scientific article published on 31 March 2016

Chemical composition and antimicrobial evaluation of the essential oils of Bocageopsis pleiosperma Maas.

scientific article published on 6 January 2015

Chemical composition and larvicidal activity of the essential oil from the leaves of Onychopetalum periquino (Rusby) D.M. Johnson & N.A. Murray

scientific article published on 28 May 2019

Comprehensive characterization of lipids from Amazonian vegetable oils by mass spectrometry techniques

scientific article published on 30 July 2014

Cyperus articulatus L. (Cyperaceae) Rhizome Essential Oil Causes Cell Cycle Arrest in the G2/M Phase and Cell Death in HepG2 Cells and Inhibits the Development of Tumors in a Xenograft Model

scientific article published on 09 June 2020

Determination of the phenolic composition from Brazilian tropical fruits by UHPLC-MS/MS.

scientific article

Direct infusion ESI-IT-MSn alkaloid profile and isolation of tetrahydroharman and other alkaloids from Bocageopsis pleiosperma maas (Annonaceae).

scientific article published on 24 June 2015

Endophytic fungi from Myrcia guianensis at the Brazilian Amazon: distribution and bioactivity

scientific article

Essential oil from leaves of Conobea scoparioides (Cham. & Schltdl.) Benth. (Plantaginaceae) causes cell death in HepG2 cells and inhibits tumor development in a xenograft model

scientific article published on 20 June 2020

Fullerene separation and identification by traveling wave ion mobility mass spectrometry in laser desorption processes during asphaltene analysis

scientific article published on 01 March 2016

Gas Chromatography Coupled to High Resolution Time-of-Flight Mass Spectrometry as a High-Throughput Tool for Characterizing Geochemical Biomarkers in Sediments

scientific article published on 02 December 2018

Guaianolide sesquiterpene lactones and aporphine alkaloids from the stem bark of Guatteria friesiana

scientific article

Imidate-based cross-linkers for structural proteomics: increased charge of protein and peptide ions and CID and ECD fragmentation studies.

scientific article published on 30 April 2014

In vitro and in vivo anti-leukemia activity of the stem bark of Salacia impressifolia (Miers) A. C. Smith (Celastraceae)

scientific article published on 13 November 2018

In vitro and in vivo growth inhibition of human acute promyelocytic leukemia HL-60 cells by Guatteria megalophylla Diels (Annonaceae) leaf essential oil

scientific article published on 30 December 2019

In vitro and in vivo inhibition of HCT116 cells by essential oils from bark and leaves of Virola surinamensis (Rol. ex Rottb.) Warb. (Myristicaceae)

scientific article published on 27 July 2020

Integrative Approach Based on Leaf Spray Mass Spectrometry, HPLC‑DAD‑MS/MS, and NMR for Comprehensive Characterization of Isoquinoline-Derived Alkaloids in Leaves of Onychopetalum amazonicum R. E. Fr.

scientific article published on 05 June 2019

Mauritic acid: a new dammarane triterpene from the roots of Mauritia flexuosa L.f. (Arecaceae).

scientific article published on 9 May 2013

Molecular networking-based dereplication of strictosidine-derived monoterpene indole alkaloids from the curare ingredient Strychnos peckii

scientific article published on 29 November 2019

Penicillium amapaense sp. nov., section Exilicaulis, and new records of Penicillium labradorum in Brazil isolated from Amazon River sediments with potential applications in agriculture and biotechnology ⬇️

scientific article published in 2023

Phytochemical study of the alkaloidal fractions of Unonopsis duckei R. E. Fr. guided by electrospray ionisation ion-trap tandem mass spectrometry

scientific article published on 06 August 2013

Quantification of Sterol and Triterpenol Biomarkers in Sediments of the Cananéia-Iguape Estuarine-Lagoonal System (Brazil) by UHPLC-MS/MS.

scientific article published on 21 March 2016

Remela de cachorro (Clavija lancifolia Desf.) fruits from South Amazon: Phenolic composition, biological potential, and aroma analysis

scientific article published on 14 April 2018

Statistical mixture design investigation for extraction and quantitation of aporphine alkaloids from the leaves of Unonopsis duckei R.E. Fr. by HPLC-MS/MS.

scientific article

Structure-Based Molecular Networking for the Target Discovery of Oxahomoaporphine and 8-Oxohomoaporphine Alkaloids from Duguetia surinamensis

scientific article published on 12 August 2019

Synthesis and Inhibition Evaluation of New Benzyltetrahydroprotoberberine Alkaloids Designed as Acetylcholinesterase Inhibitors

scientific article published on 18 September 2019

Toxins from Animal Venoms as a Potential Source of Antimalarials: A Comprehensive Review

scientific article published in 2023

microbeMASST: a taxonomically informed mass spectrometry search tool for microbial metabolomics data ⬇️

scientific article published in 2024

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