Propolis is a potential source of natural antioxidants such as phenolic acids and flavonoids. Its wide biological effects have been known and used since antiquity. In the modern world natural substances are sought which would be able to counteract the effects of antioxidative stress, which underlies many diseases, such as cancer, diabetes and atherosclerosis. This paper aims to present the antioxidative activity of phenolic acids and flavonoids present in Polish propolis and the relationship between their chemical structure and antioxidative activity influencing its medicinal properties. Data concerning the biological activity of propolis are summarized here, including its antibacterial, anti-inflammatory, anticarcinogenic, antiatherogenic, estrogenic effects, as well as AIDS- counteracting and reparative-regenerative function.
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http://dx.doi.org/10.3390/molecules19010078 | DOI Listing |
Environ Sci Technol
January 2025
Department of Chemistry, University of Alberta, Edmonton Alberta T6G 2G2, Canada.
Trifluoroacetic acid (TFA) is a ubiquitous environmental contaminant; however, its sources are poorly constrained. One understudied source is from the photochemical reactions of aromatic compounds containing -CF moieties (aryl-CF) including many pharmaceuticals and agrochemicals. Here, we studied the aqueous photochemistry of 4-(trifluoromethyl)phenol (4-TFMP), a known transformation product of the pharmaceutical fluoxetine.
View Article and Find Full Text PDFRapid Commun Mass Spectrom
April 2025
School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, China.
Rationale: Astragali radix-Salvia miltiorrhiza (AR-SM) is an herb pair with good therapeutic effects and is widely used. In this study, the in vitro and in vivo components of AR-SM were quickly classified and identified based on UHPLC-orbital mass spectrometry. This provided a basis for clarifying the bioactive substances after compatibility of AR and SM.
View Article and Find Full Text PDFRapid Commun Mass Spectrom
April 2025
State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong SAR, China.
Rational: People are widely exposed to parabens in their daily life, but parabens are endocrine disrupting chemicals that pose a threat to human health. Therefore, establishing a rapid screening method to enhance monitoring of parabens is necessary. Herein, a covalent organic framework (COF) nanofilm-assisted laser desorption ionization mass spectrometry (LDI-MS) method was established to screen parabens in personal care products (PCPs).
View Article and Find Full Text PDFMol Ecol
January 2025
Department of Crop Protection, Hochschule Geisenheim University, Geisenheim, Germany.
Herbivorous insects need to cope with changing host plant biochemistry caused by abiotic and biotic impacts, to meet their dietary requirements. Larvae of the multivoltine European grapevine moth Lobesia botrana, one of the main insect pests in viticulture, feed on both flowers and berries. The nutritional value and defence compounds of these organs are changing with plant phenology and are affected by climate change which may accordingly alter plant-insect interactions.
View Article and Find Full Text PDFBMC Plant Biol
January 2025
Key Laboratory of Biology and Genetic Improvement of Oil Crops of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, 430062, China.
Background: Perilla frutescens (L.) Britt. (Lamiaceae) leaves are essential culinary and medicinal herbs, native to East Asian countries.
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