Publications by authors named "Marek Bunse"
Essential oils (EOs) and their individual volatile organic constituents have been an inherent part of our civilization for thousands of years. They are widely used as fragrances in perfumes and cosmetics and contribute to a healthy diet, but also act as active ingredients of pharmaceutical products. Their antibacterial, antiviral, and anti-inflammatory properties have qualified EOs early on for both, the causal and symptomatic therapy of a number of diseases, but also for prevention.
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- The study investigates the traditional use of Geum urbanum L. roots and rhizomes for treating ulcers and mucous membrane irritations, particularly through examining its extracts.
- Researchers aimed to identify the secondary metabolites in these extracts and assess their antimicrobial effects, using techniques like HPLC-DAD-MS and GC/MS for analysis.
- The findings revealed rare ellagitannin-sulfates and highlighted that high-molecular tannins showed the strongest antibacterial activity against specific bacteria, comparing the effects with another plant, G. rivale.
The present study aimed at the identification and quantitation of phenolic compounds, fatty acids, and further characteristic substances in the seeds of L. and L. For this purpose, individual components of extracts recovered with MeOH, CHCl, and by cold-pressing, respectively, were characterized by HPLC-DAD/ESI-MS and GC/MS and compared with reference compounds.
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- - The study compared two plant species, L. and L., focusing on their phenolic compounds and antioxidant activity using a specific radical assay.
- - The ethyl acetate extract exhibited the strongest antioxidant activity, with specific compounds like luteolin and apigenin identified as effective scavengers present only in this fraction.
- - Both species showed similar key compounds, but differences in individual compound concentrations were noted, indicating similar potential for phytotherapy benefits.
Extracts of kidney vetch (Anthyllis vulneraria L.) are becoming increasingly interesting as ingredients for the health and cosmetics industry. However, comprehensive phytochemical investigations of this plant are scant in the literature.
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- The study investigates the secondary metabolites present in the flowers of Sanguisorba officinalis through various extraction and analysis methods.
- It identifies several compounds, including flavonoid glycosides like quercetin and kaempferol, as well as previously unreported anthocyanins.
- The research also characterizes new compounds such as phenylethylamine and various phenolic acids, enhancing the understanding of the plant's chemical profile.
Seeds from Hypericum species have recently been identified as an interesting source of xanthone derivatives. Extraction of seeds from H. perforatum with MeOH and subsequent concentration via polyamide adsorption yielded a fraction enriched in tetrahydroxyxanthones (THX), which were further semipurified by silica gel chromatography.
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