Chemical Constituents of Three Allium Species from Romania

Abstract

The aim of this work was to study the chemical composition of Allium obliquum L., A. senescens L. subsp. montanum (Fries) Holub, and A. schoenoprasum L. subsp. schoenoprasum. Sulphur-containing compounds analysis was performed by an LC-MS method, the identification and quantification of polyphenolic compounds through a HPLC-UV-MS method, and the presence of five sterols was simultaneously assessed by HPLC-MS-MS. Alliin was identified only in A. obliquum and A. senescens subsp. montanum extracts, whilst allicin was present in all extracts, with higher amounts in A. schoenoprasum and A. obliquum. The pattern of phenol carboxylic acids shows the presence of p-coumaric and ferulic acids in all species. Isoquercitrin was identified in A. obliquum and A. schoenoprasum, and rutin in A. senescens subsp. montanum and A. schoenoprasum. Luteolin and apigenin were identified only in A. obliquum. All three species contain glycosides of kaempferol and quercetol. β-Sitosterol and campesterol were identified in all species. The results obtained showed significant differences in the composition of the three Allium species.

In vitro Evaluation of Antioxidant and Antiproliferative Activities of Artemisia nilagirica Extracts

“…Besides, it was also concluded that medicinal plants can be involved in preventing or hindering the progression of many diseases. The herbal drugs/formulations apart from being considered as free from serious adverse effects are obtained from natural world and are easily accessible [33][34][35] . Despite the plethora of drugs developed by pharmaceutical industry, herbal remedies have proved to be effective alternative or complementary treatments for different ailments [36] .…”

Phenolic Compounds and Antifungal Activity of <i>Hedera helix</i> L. (Ivy) Flowers and Fruits

“…The method used was a previously published HPLC method with minor changes (Compaore et al, 2012;Mocan et al, 2014;Vlase et al, 2013). The method is suitable for qualitative (18 compounds) and quantitative (14 compounds) analyses.…”

“…The method is suitable for qualitative (18 compounds) and quantitative (14 compounds) analyses. In this study, 18 standards of the polyphenolic compounds were used, namely caftaric acid, gentisic acid, caffeic acid, chlorogenic acid, paracoumaric acid, ferulic acid, sinapic acid, hyperoside, isoquercitrin, rutoside, myricetol, fisetin, quercitrin, quercetol, patuletine, luteolin, kaempferol, and apigenin (Mocan et al, 2014;Vlase et al, 2013).…”

“…However, all 4 compounds were selectively identified using MS detection (qualitative analysis) based on differences in their molecular mass and MS spectra (Vlase et al, 2013).…”

“…The MS signal was used only for qualitative analysis based on the specific mass spectra of each polyphenol (Mocan et al, 2014;Vlase et al, 2013).…”