<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-30T03:26:56Z</responseDate><request verb="GetRecord" identifier="oai:munzur-rdlopen.rawdatalibrary.net:munzur/3752" metadataPrefix="oai_dc">https://munzur-rdlopen.rawdatalibrary.net/oai/request</request><GetRecord><record><header><identifier>oai:munzur-rdlopen.rawdatalibrary.net:munzur/3752</identifier><datestamp>2026-10-28T15:31:01Z</datestamp><setSpec>openaire</setSpec><setSpec>driver</setSpec><setSpec>com_munzur_1</setSpec><setSpec>col_munzur_2</setSpec><setSpec>com_munzur_8</setSpec><setSpec>col_munzur_154</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:title>Ghanaian Mangrove Wetland Endophytic Fungus, Penicillium herquei strain BRS2A-AR produces (9Z, 11E)-13-oxooctadeca-9,11-dienoic acid with activity against Trichomonas mobilensis</dc:title><dc:creator>Hayibor, Kennedy</dc:creator><dc:creator>Kwain, Samuel</dc:creator><dc:creator>Osei, Enoch</dc:creator><dc:creator>Nartey, Adwoa Padiki</dc:creator><dc:creator>Tetevi, Gilbert Mawuli</dc:creator><dc:creator>Owusu, Kofi Baffour-Awuah</dc:creator><dc:creator>Camas, Mustafa</dc:creator><dc:creator>Camas, Anil Sazak</dc:creator><dc:creator>Kyeremeh, Kwaku</dc:creator><dc:subject>Antiprasitic</dc:subject><dc:subject>Leishmania</dc:subject><dc:subject>Oxylipin</dc:subject><dc:subject>Plasmodium</dc:subject><dc:subject>Trichomonas</dc:subject><dc:subject>Trypanosome</dc:subject><dc:description>Sub-Sahara Africa is burdened with a high incidence of parasitic infections, including schistosomiasis, trypanosomiasis, trichomoniasis, and leishmaniasis. Currently, there is a rapid widespread development of resistance to prescription drugs for these neglected diseases. Microbes provide the largest chemical and biological diversity in drug discovery screening programs; therefore, our project seeks to explore microbes in the sub-region for new drugs. The oxylipin (9Z,11E)-13-oxooctadeca-9,11-dienoic acid (1) was isolated from the Ghanaian endophytic fungus, Penicillium herquei strain BRS2A-AR obtained from the leaves of a Laguncularia racemosa tree growing on the banks of the River Butre in the Western Regional wetlands of Ghana. Compound 1 was isolated on reverse phase HPLC at tR of 34.3 minutes. The structure of compound 1 was confirmed by a combination of mass spectrometry, 1D and 2D-NMR techniques. Compound 1 showed minimal antiparasitic activity when tested against Plasmodium falciparum 3d7 (IC50&gt;100µM; aretesunate, IC50 36nm), Trypanosoma brucei brucei (IC50&gt;100µM; Coptis japonica, IC50 8.20µM), Leishmani donovani (IC50&gt;100µM; amphotericin B, IC50 0.32µM) and Leishmania major (IC50&gt;100µM; amphotericin B, IC50 0.31µM). Compound 1 produced IC50 of 44.47µM when tested against Trichomonas mobilensis with metronidazole (IC50 5.20µM) as standard. These results show the potential to further engineer the structure of compound 1 into a potent anti-Trichomonas scaffold.</dc:description><dc:publisher>International Formulae Group (IFG)</dc:publisher><dc:date>2019</dc:date><dc:type>Article</dc:type><dc:identifier>https://rdlopen.rawdatalibrary.net/r/munzur/3752</dc:identifier><dc:identifier>https://doi.org/10.4314/ijbcs.v13i4.2</dc:identifier><dc:identifier>1991-8631</dc:identifier><dc:language>en</dc:language><dc:relation>International Journal of Biological and Chemical Sciences</dc:relation><dc:rights>info:eu-repo/semantics/openAccess</dc:rights><dc:type>info:eu-repo/semantics/article</dc:type><dc:identifier>https://munzur-rdlopen.rawdatalibrary.net/tr/items/munzur/3752</dc:identifier></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>