Flavonoids are an important group of natural compounds, which can prevent coronary heart disease and have antioxidant properties. Hawthorn is a well known and widely used medicinal plant due to its cardiotonic activity. Previous studies refer mostly to the HPLC analysis of the flavonoids: vitexin, quercetin, hyperoside, oligomeric procyanidins, which appear to be primarily responsible for the cardiac action of the plant. Aqueous ethanolic extracts of single-styled hawthorn (Crataegus monogyna Jacq., f.: Rosaceae Juss.) leaves and sprouts were analyzed by means of capillary zone electrophoresis (CZE). Influence of vegetation period on the extract qualitative composition and flavonoids quantities was evaluated. Sample preparation by extraction using different concentration of aqueous ethanol (40-96%, v/v) and the influence of extractant composition on the recovery of flavonoids are discussed in detail. The results obtained using CZE are compared to the results of spectrophotometric and HPLC analysis of the extracts. The effect of storage conditions of extracts (solar irradiation, temperature and duration) on degradation of flavonoids was investigated.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.chroma.2006.01.034 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comprehensive analysis of flower extracts: phytochemical composition and toxicity in zebrafish embryos.
Nat Prod Res
January 2025
Programa de Pós-Graduação em Farmacologia, Universidade Federal de Santa Maria (UFSM), Santa Maria, Brazil.
(L.) R. Br.
View Article and Find Full Text PDFEcdysteroids in Native Trees and Callus Cultures of the Genus Vitex L. of the Flora of Russia and Vietnam.
Phytochem Anal
January 2025
Institute of Biology, Federal Research Centre Komi Science Center, Ural Branch of the Russian Academy of Sciences, Syktyvkar, Russia.
Introduction: Vitex L. is a large genus of tropical and subtropical trees used in medicine of many nations. Some species are used in gynecology due to flavonoids, iridoids, and diterpenes.
View Article and Find Full Text PDFIntegrated transcriptomics and metabolomics analyses provide new insights into cassava in response to nitrogen deficiency.
Front Plant Sci
January 2025
National Center of Technology Innovation for Saline-Alkali Tolerant Rice, College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China.
Nitrogen deficiency is a key constraint on crop yield. Cassava, the world's sixth-largest food crop and a crucial source of feed and industrial materials, can thrive in marginal soils, yet its yield is still significantly affected by limited nitrogen availability. Investigating cassava's response mechanisms to nitrogen scarcity is therefore essential for advancing molecular breeding and identifying nitrogen-efficient varieties.
View Article and Find Full Text PDFA report on the physicochemical and antioxidant properties of three Indonesian forest honeys produced by .
Food Chem X
January 2025
Research Center for Applied Zoology, National Research and Innovation Agency Republic of Indonesia, P.O. Box 16911, Bogor, Indonesia.
Indonesia, one of the largest tropical forests, offers a diverse range of nectar sources that contribute to the unique characteristics of forest honey. This study aims to investigate physicochemical and antioxidant properties of forest honey from three distinct regions of Indonesia. Key physicochemical parameters include moisture, color, electrical conductivity (EC), total dissolved solids (TDS), total suspended solids (TSS), density, diastase number (DN), hydroxymethylfurfural (HMF), pH, total acidity, ash content, protein content, and reducing sugars.
View Article and Find Full Text PDFExploring the noncovalent interaction between β-lactoglobulin and flavonoids under nonthermal process: Characterization, physicochemical properties, and potential for lycopene delivering.
Food Chem X
January 2025
Zhejiang Provincial Key Lab for Biological and Chemical Processing Technologies of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, Zhejiang, China.
The poor structure stability and low bioavailability of lycopene (LY) hampers the wide application in food field. Thus, it is crucial to explore novel deliver carrier for LY based on protein-flavonoid complexes. In this study, the noncovalent interaction mechanism between β-lactoglobulin (β-LG) and flavonoids (apigenin (API), luteolin (LUT), myricetin (MY), apigenin-7-O-glucoside, luteolin-7-O-glucoside, and myricetrin) under ultrasound treatment was explored.
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!