2019
DOI: 10.31925/farmacia.2019.2.21
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Phytochemical Analysis and Biological Activity of Extracts of Lichen Physcia Semipinnata: As a New Source of Pharmacologically Active Compounds

Abstract: The present study provides new data concerning chemical characterization and biological activity of acetone, methanol and aqueous extracts of the lichen Physcia semipinnata. Chemical profiling of the extracts was done by high-performance liquid chromatography coupled with a UV detector (HPLC-UV) analysis. The antioxidant activity was evaluated by measuring total anti-oxidative capacity, reducing capacity, inhibition lipid peroxidation and scavenging capacity on 2,2-diphenyl-1picrylhydrazyl (DPPH) and hydroxyl … Show more

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Cited by 7 publications
(4 citation statements)
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References 22 publications
(26 reference statements)
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“…Our research showed that XSA had the largest TPC and TFC, which is consistent with the solubility of this type of compound in polar solvents (such as acetone). The content of phenols and flavonoids in extracts can depend on many things such as the type of natural material for extraction, the solvent used, and the type of extraction [22,34]. In addition to having the highest TPC and TFC values, XSA exhibited the best antioxidant activity in all three systems used in this study (i.e., DPPH radical scavenging activity, hydroxyl radical scavenging activity, and superoxide anion radical scavenging activity).…”
Section: Discussionmentioning
confidence: 86%
See 1 more Smart Citation
“…Our research showed that XSA had the largest TPC and TFC, which is consistent with the solubility of this type of compound in polar solvents (such as acetone). The content of phenols and flavonoids in extracts can depend on many things such as the type of natural material for extraction, the solvent used, and the type of extraction [22,34]. In addition to having the highest TPC and TFC values, XSA exhibited the best antioxidant activity in all three systems used in this study (i.e., DPPH radical scavenging activity, hydroxyl radical scavenging activity, and superoxide anion radical scavenging activity).…”
Section: Discussionmentioning
confidence: 86%
“…The presence of identified secondary metabolites was confirmed by comparing retention times and absorption maxima with standards obtained from the following sources: lecanoric acid (t R = 7.42 ± 0.02) from lichen Melanelia subaurifera, obtusic acid (t R = 11.41 ± 0.01) from lichen Physcia semipinnata, usnic acid (t R = 16.78 ± 0.02) from lichen Usnea barbata and as a commercially available standard (Sigma Aldrich), and atranorin from lichen Evernia prunastri. All of the mentioned standards were obtained within the work of our laboratory [21][22][23], and their structures were confirmed based on spectral data. In addition, the limit of detection (LOD) and limit of quantification (LOQ) for the used chromatographic method and for every identified compound were determined (Table 3).…”
Section: Chromatographic Analysis Of Extractsmentioning
confidence: 99%
“…Until now, many researchers have investigated the antioxidant properties of many lichens extracts and some of them showed a very good antioxidant activity (24)(25)(26). If we compare the same lichens species but different extraction solvent, the methanol extract had a greater antioxidant capacity than the acetone extract.…”
Section: Discussionmentioning
confidence: 99%
“…It is proposed that the lichen polysaccharides of the β-glucan and galactomannan types have chemotaxonomic significance. It was discovered that the photobiont produced a wide range of polysaccharides, while the mycobiont in the lichenized relationship produced polysaccharides that are identical to the parent lichen [182].…”
Section: Nutritional Aspects Of Lichensmentioning
confidence: 99%