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Gas-Phase Fragmentation of Coenzyme Q Radical Anion Generated by APCI: A Study by High/Low-Resolution Tandem/Sequential Mass Spectrometry.
J Am Soc Mass Spectrom
January 2025
Dipartimento di Scienze del Suolo, della Pianta e degli Alimenti, Università degli Studi di Bari Aldo Moro, Via G. Amendola 165/a, 70126 Bari, Italy.
Coenzyme Q (CoQ) and closely related compounds with varying isoprenoid tail lengths (CoQ, = 6-9) are biochemical cofactors involved in many physiological processes, playing important roles in cellular respiration and energy production. Liquid chromatography (LC) coupled with single or tandem mass spectrometry (MS) using electrospray (ESI) or atmospheric pressure chemical ionization (APCI) is considered the gold standard for the identification and quantification of CoQ in food and biological samples. However, the characteristic fragmentation exhibited by the CoQ radical anion ([M], / 862.
View Article and Find Full Text PDFA phylogenetic assessment of in (, ): introduction of new genera, and the resurrection of .
Fungal Syst Evol
December 2024
Plant Microbe Interaction Research Team, BIOTEC, National Science and Technology Development Agency (NSTDA) 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand.
During entomopathogenic fungal surveys conducted in Thailand, 15 specimens tentatively classified under were identified. To gain a comprehensive understanding of their taxonomy, molecular phylogenies using combined LSU, , , and sequence data, together with morphological examination of several spp. from previous studies were conducted.
View Article and Find Full Text PDFPseudocitrobacter cyperus, a novel bacterial species recovered from Cyperus alternifolius in Egypt.
BMC Microbiol
January 2025
Microbiology and Immunology Department, October University for Modern Sciences and Arts (MSA), Giza, Egypt.
Background: Strain Cyp38S was isolated as an endophyte from the plant Cyperus alternifolius, collected along the banks of the River Nile in 2019. Preliminary analysis tentatively identified Cyp38S as belonging to the genus Pseudocitrobacter.
Methods: The preliminary identification of Cyp38S was performed using the VITEK2 identification system, MALDI-TOF-MS, and 16S rRNA gene sequencing.
Alchemy in Nature: The Role of Extract Choice in Crafting Potent Anticancer Metal Nanoparticles.
ACS Appl Mater Interfaces
January 2025
Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, 15551, United Arab Emirates.
Phyto-nanotechnology provides an eco-friendly approach for synthesizing biocompatible metal nanoparticles (NPs) with therapeutic potential. (LI) has been historically valued for its diverse medicinal applications, especially its exceptional biological potency against various skin diseases, attributed to its rich abundance of bioactive compounds. Therefore, herein, plant-based iron and zinc NPs were biofabricated via sustainable and simple methods, using crude extracts of the aerial parts of LI as reducing, coating, and stabilizing agents.
View Article and Find Full Text PDFApplication of Supercritical CO Extraction and Identification of Polyphenolic Compounds in Three Species of Wild Rose from Kamchatka: , , and .
Plants (Basel)
December 2024
N.I. Vavilov All-Russian Institute of Plant Genetic Resources, B. Morskaya 42-44, 190000 Saint-Petersburg, Russia.
A comparative metabolomic study of three varieties of wild Rosa (, , and ) from a Kamchatka expedition (2024) was conducted via extraction with supercritical carbon dioxide modified with ethanol (EtOH), and detection of bioactive compounds was realized via tandem mass spectrometry. Several experimental conditions were investigated in the pressure range 50-350 bar, with the used volume of co-solvent ethanol in the amount of 2% in the liquid phase at a temperature in the range of 31-70 °C. The most effective extraction conditions are the following: pressure 200 Bar and temperature 55 °C for ; pressure 250 Bar and temperature 60 °C for ; pressure 200 Bar and temperature 60 °C for .
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