Results 41 to 50 of about 1,481 (197)
Biomolecules, 2021 Primary biosynthetic enzymes involved in the synthesis of lichen polyphenolic compounds depsides and depsidones are non-reducing polyketide synthases (NR-PKSs), and cytochrome P450s.
Garima Singh +3 more
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Lichen and Its Microbiome as an Untapped Source of Anti-Biofilm Compounds. [PDF]
Chem BiodiversLichens and their associated fungi give rise to the evaluation of several extracts and compounds against biofilms. ABSTRACT Lichen substances have been first described in the 1870s, and around 10 000 compounds have been isolated and characterized. Most of them have been evaluated for their activity on planktonic microorganisms (bacteria and fungi ...
Millot M +4 more
europepmc +2 more sources
Phytochemical Investigation of New Algerian Lichen Species: Physcia Mediterranea Nimis
Molecules, 2021 The present study provides new data concerning the chemical characterisation of Physcia mediterranea Nimis, a rare Mediterranean species belonging to the family Physciaceae. The phytochemical screening was carried out using GC-MS, HPLC-ESI-MS-MS, and NMR
Marwa Kerboua +7 more
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Molecules, 2019 Roots and leaves of Carlina acaulis L. are still used in ethnomedicine in many European countries; however, the limited occurrence of the plants and protection of this species necessitate a search for alternative ways for obtaining this plant material ...
Maciej Strzemski +8 more
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Thermal Decomposition of Lichen Depsides
Zeitschrift für Naturforschung B, 1989 The thermal decomposition of the following lichen depsides has been described: lecanoric acid, gyrophoric acid, evernic acid, perlatolic acid, planaic acid, confluentic acid, atranorin, 4-O-de-methylbarbatic acid, and sekikaic acid. Main reaction products are decarboxylated compounds, phenolic units, rearranged depsides, and xanthones. Triethylammonium
Huneck, Siegfried +2 more
openaire +2 more sources
SYNTHESIS OF DEPSIDES, LICHEN-SUBSTANCES AND TANNINS. [PDF]
Journal of the American Chemical Society, 1914 n ...
openaire +2 more sources
Actividad antioxidante de los polifenoles de HYPOGYMNIA TAVARESII D. HAWKSW. & P. JAMES
Química Nova, 2016 Lichen substances have more than one phenolic hydroxyl group attached to one or more benzene rings, thus qualifying them as polyphenols. The secondary metabolites isolated from the lichen H.
Elsa M. Rodríguez Pérez +4 more
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Anticancer Potential of Lichens’ Secondary Metabolites
Biomolecules, 2020 Lichens produce different classes of phenolic compounds, including anthraquinones, xanthones, dibenzofuranes, depsides and depsidones. Many of them have revealed effective biological activities such as antioxidant, antiviral, antibiotics, antifungal, and
Zuzana Solárová +5 more
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Radical-scavenging Potential of Phenolic Compounds from Brazilian Lichens
Orbital: The Electronic Journal of Chemistry, 2015 Lichens produce a wide range of phenolic substances, mostly depsides and depsidones. As part of our ongoing study of lichens from the Cerrado biome in Mato Grosso do Sul state, the present article reports novel findings on the radical-scavenging ...
Neli Kika Honda +7 more
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Synthesis of β-orcinol meta-depsides
, 1975 The total syntheses of the lichen depsides, decarboxythamnolic, thamnolic, hypothamnolic and haemathamnolic acid are described.
S Norfolk, JA Elix
core +1 more source