The chemical composition of Matricaria chamomilla L. and Nepeta cataria L. essential oils was determined by GC-MS on an apolar stationary phase by comparison of the characteristic fragmentation patterns with those of the Wiley 275L database. The GC-MS chromatograms were compared with those obtained by fast GC equipped with a direct resistively heated column (Ultra Fast Module 5% phenyl, 5 mx 0.1 mm, 0.1 microm film thickness). Analytical conditions were optimised to reach a good peak resolution (split ratio=1:100), with analysis time lower than 5 min versus 35-45 min required by conventional GC-MS. The fast chromatographic method was completely validated for the analysis of mono- and sesquiterpene compounds. Essential oils were then fractionated by column chromatography packed with silica gel. Three main fractions with high degree of purity in E-beta-farnesene were isolated from the oil of M. chamomilla. One fraction enriched in (Z,E)-nepetalactone and one enriched in beta-caryophyllene were obtained from the oil of N. cataria. These semiochemical compounds could act as attractants of aphid's predators and parasitoids.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.chroma.2008.09.109 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Essential Oils from Chromolaena odorata (L.) R. M. King and H. Robinson Stem Barks and Leaves: Chemical Analysis, Biological Activity and In Silico Approach.
Chem Biodivers
January 2025
Vietnam National University Hanoi, VNU University of Science, 19 Le Thanh Tong, Hoankiem, VIET NAM.
The current study first describes the chemical profiles of essential oils from Vietnamese Chromolaena odorata fresh stem barks and leaves. The gas chromatography-flame inonization detection/mass spectrometry (GC-FID/MS) analysis revealed that α-pinene (6.97-38.
View Article and Find Full Text PDFEffects, Mechanisms of Action and Application of Vitex agnus-castus for Improvement of Health and Female Reproduction.
Phytother Res
January 2025
Constantine the Philosopher University in Nitra, Nitra, Slovak Republic.
This narrative review describes the provenance and chemical composition of Vitex agnus-castus, as well as the currently available knowledge concerning its action. To search the related articles, Cochrane Library, PubMed, Web of Science, SCOPUS databases between the years 1995 and 2024, and the keywords "Vitex," "review," "fertility," "ovarian" and "mechanisms" were used in various combinations. The data listed in this review demonstrate that Vitex agnus-castus and its constituents (isoflavones and essential oils) affect a number of physiological actions via multiple extra- and intracellular mechanisms of action.
View Article and Find Full Text PDFRhanterium Epapposum Essential Oil and Its Primary Compounds Control Infection, Inflammation, and Serum Electrolyte Imbalance in Mice with Giardiasis.
Acta Parasitol
January 2025
Department of Medical Laboratories, College of Applied Medical Sciences, Shaqra University, Ad Dawadimi, Shaqra, 17464, Saudi Arabia.
Purpose: The present experimental study seeks to evaluate the in vitro and in vivo effects, as well as the potential mechanisms of action, of Rhanterium epapposum essential oil (REE) and its main constituents against Giardia lamblia infection.
Methods: The analysis of REE was performed using the Gas Chromatography-Mass Spectrometry (GC-MS) detector. The in vitro effects of REE and its main constituents on viability of G.
The Global Secondary Metabolite Regulator Modulates Virulence, Ochratoxin Biosynthesis, and the Mode of Action of Biopesticides and Essential Oils.
Toxins (Basel)
December 2024
Laboratory of Plant Pathology, Department of Crop Science, Agricultural University of Athens, 118 55 Athens, Greece.
is considered one of the main fungi responsible for black and sour rot in grapes, as well as the production of the carcinogenic mycotoxin ochratoxin A. The global regulatory methyltransferase protein controls the production of various secondary metabolites in species, as well as influences sexual and asexual reproduction and morphology. The goal of this study was to investigate the role of the regulatory gene in physiology, virulence, and ochratoxin A (OTA) production by deleting this gene from the genome of a wild-type strain.
View Article and Find Full Text PDFAdvanced Amperometric Microsensors for the Electrochemical Quantification of Quercetin in Essential Oil from Regenerative Farming Practices.
Metabolites
December 2024
Department of Clinical Laboratory and Food Safety, Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, 020956 Bucharest, Romania.
In this study, we present a novel approach using amperometric microsensors to detect quercetin in cosmetic formulations and track its metabolic behavior after topical application. This method offers a sensitive, real-time alternative to conventional techniques, enabling the detection of quercetin's bioavailability, its transformation into active metabolites, and its potential therapeutic effects when applied to the skin. Quercetin (Q) is a bioactive flavonoid known for its potent antioxidant properties, naturally present in numerous plants, particularly those with applications in cosmetic formulations.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!