Chemical constituents of three Allium species from Romania. ↗
Vlase L, Parvu M, Parvu EA, Toiu A.
Vad undersöktes?
- Hur undersöktes det?
- 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.
- Vilka undersöktes?
- A. obliquum
- Vilken ämnesform?
- apigenin
- Vilken mängd användes?
- Luteolin and apigenin were determined only in A. obliquum, before (172.35 μg/100 g, and 149.03 μg/100 g, respectively), and after acid hydrolysis (280.74 μg/100 g, and 277.06 μg/100 g, respectively).
- Hur länge pågick studien?
- Ingen uppgift i sammanställningen
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Vad kom studien fram till?
Författarna rapporterar att apigenin bestämdes endast i A. obliquum, med en mängd på 149.03 μg/100 g i icke‑hydrolyserade extrakt och 277.06 μg/100 g efter syra‑hydrolys.
Vad behöver resultatet vägas mot?
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AbstractThe 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.
2.1. The Analysis of PolyphenolsLuteolin and apigenin were determined only in A. obliquum, before (172.35 μg/100 g, and 149.03 μg/100 g, respectively), and after acid hydrolysis (280.74 μg/100 g, and 277.06 μg/100 g, respectively). Kaempferol and quercetol were present in both non-hydrolysed and hydrolysed sample of A. schoenoprasum, and only in hydrolysed extracts of A. obliquum and A. senescens subsp. montanum. The richest species in quercetol derivatives was A. senescens (993.90 μg/100 g), and in kaempferol derivatives was A. schoenoprasum (1563.46 μg/100 g).
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