BACKGROUND The chemical assignment of metabolites is crucial to understanding the relation between food composition and biological activity. OBJECTIVE This study was designed to detect and chemically assign sulfur-containing metabolites by using LC-Fourier transform ion cyclotron resonance-mass spectrometry (FTICR-MS) in Allium plants. METHODS Ultrahigh resolution (>250,000 full width at ha...

Introduction: This study investigated the effects of extremely low frequency electromagnetic fields (ELF-EMF) (50 Hz, 3 mT) on biochemical parameters of rats’ ovarian tissues and the impact of Allium cepa on the reduction of potential adverse influences of electromagnetic exposure. Material and Methods: In this study 40 female Wistar rats were divided into four groups, including (1) control gr...

Physiologically active sulfur-containing compounds produced by Allium spp. have long fascinated chemists, biochemists, and biologists.[...].

In this study, the new stable sulfur-containing compounds onionins A2 (1) and A3 (2) were isolated from the acetone extracts of the bulbs of Allium cepa L. and identified as the stereoisomers of onionin A1 discovered in our previous study. Their chemical structures, 3,4-dimethyl-5-(1E-propenyl)-tetrahydrothiophene-2-sulfenic acid-S-oxides, were characterized using various spectroscopic techniqu...

Hospital effluents are serious problems in developing countries like Brazil, and when not treated adequately, can cause mutagenic effects on live organisms. Biomonitors, like Allium cepa L., which is one of the most used plant species when monitoring effluent genotoxicity, have been used to alert the world population about environmental contamination and genotoxic chemical emissions. The Allium...

in the present study we aimed to evaluate the effects of methanolic extracts of the bulbs of garlic (allium sativum l., alliaceae) and persian shallot (allium ascalonicum l., alliaceae ) and leaves of sage (salvia officinalis l., lamiaceae ), ase, aae and soe respectively, on the antioxidant enzymes such as superoxide dismutase (sod), glutathione peroxidase (gpx) and catalase (cat) activities an...

Allium sativum L. belongs to a member of the onion family (Alliaceae) and has been used for both culinary and medical purpose. We cloned 4-coumarate:CoA ligase (4CL) from Allium sativum. 4-Coumarate:CoA ligase has an important role in the biosynthesis of plant secondary metabolites at the divergence point from general phenylpropanoid metabolism to several major branch pathways. Its deduced amin...

High performance liquid chromatographic (HPLC) analysis of mycelia of Sclerotium rolfsii grown in broth medium supplemented with garlic (Allium sativum) and onion (Allium cepa) was carried out to estimate qualitative and quantitative changes in phenolic acids. Several phenolic acids, such as gallic, chlorogenic, ferulic, o-coumaric and cinnamic acids were detected in varied amounts in mycelia g...