The antioxidant and antimycotic activities of the essential oils and extracts of two native Portuguese Lavandula species, L. stoechas subsp. luisieri and L. pedunculata, were evaluated by in vitro assays. The total phenolics and flavonoids content were also determined. The antioxidant potential was assessed through DPPH radical scavenging, inhibition of lipid peroxidation (ILP), and DNA protection assays. All samples displayed a high DPPH scavenging activity, some of them showing concentration dependence. The majority of the samples were also able to inhibit lipid peroxidation. A strong correlation was observed between the results of DPPH and ILP assays and the flavonoids content of the samples. In the DNA protection assay, all the extracts were able to preserve DNA integrity. The antimycotic activity was performed against twelve fungi belonging to Basidiomycota and Ascomycota Divisions. L. stoechas subsp. luisieri exhibited the broadest activity spectra. L. pedunculata extracts were active against five fungi. Cryptococcus neoformans was the most sensitive, being inhibited by all the extracts. Our results led to the conclusion that L. stoechas subsp. luisieri and L. pedunculata can be useful as new sources of natural antioxidants and antimycotic agents, providing a possible valorization of the existing biodiversity and resources of Portuguese flora.
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http://dx.doi.org/10.1155/2015/570521 | DOI Listing |
Plants (Basel)
August 2024
Centro de Biotecnologia de Plantas da Beira Interior, Quinta Senhora de Mércules, 6000-191 Castelo Branco, Portugal.
subsp. and are two valuable aromatic and medicinal plants. Their biometric and morphological parameters, such as the number of new shoots, length of the longest shoot, multiplication rate, and fresh weight, were evaluated using the multiplication MS medium protocol.
View Article and Find Full Text PDFChem Biodivers
August 2023
Department of Chemistry, Faculty of Science, Kilis 7 Aralık University, Kilis, 79000, Türkiye.
In this study, methanol, ethanol, methanol-dichloromethane (1 : 1, v/v), acetone, ethyl acetate, diethyl ether, and chloroform extracts of lavender (Lavandula stoechas L. subsp. stoechas) were prepared by maceration, and the ursolic acid contents in the extracts were determined quantitatively by HPLC analyses.
View Article and Find Full Text PDFMetabolites
February 2023
Health Sciences Research Centre (CICS), University of Beira Interior, 6200-506 Covilhã, Portugal.
Globally, climate change and wildfires are disrupting natural ecosystems, thus setting several endemic species at risk. The genus is widely present in the Mediterranean region and its species, namely, those included in the section are valuable resources of active compounds with several biological assets. Since ancient times lavenders have been used in traditional medicine and for domestic purposes.
View Article and Find Full Text PDFZ Naturforsch C J Biosci
July 2020
Mediterranean Institute for Agriculture, Environment and Development, Department of Chemistry and Pharmacy, Faculty of Science and Technology, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal.
Spontaneous lavender growing in uncultivated fields in Portugal have been used in traditional medicine for internal and external uses. The essential oils (EOs) of Lavandula stoechas subsp. luisieri are characterized by the presence of trans-α-necrodyl acetate and trans-necrodol.
View Article and Find Full Text PDFPlants (Basel)
October 2019
Department of Animal Production and Food Science, AgriFood Institute of Aragon (IA2), University of Zaragoza-CITA, Veterinary Faculty, University of Zaragoza, Miguel Servet 177, 50013 Zaragoza, Spain.
subsp. is a Spanish subspecies from the family. Its essential oil has been traditionally used for several medical applications though little is known about other extracts.
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