Organosulfur Compounds of Allium Subgenus Nectaroscordum Species

0571663 - MBÚ 2024 RIV US eng J - Journal Article
Štefanová, I. - Bittnerová, P. - Zápal, Jakub - Kuzma, Marek - Kubec, R.
Organosulfur Compounds of Allium Subgenus Nectaroscordum Species.
Journal of Agricultural and Food Chemistry. Roč. 71, č. 14 (2023), s. 5712-5720. ISSN 0021-8561. E-ISSN 1520-5118
Institutional support: RVO:61388971
Keywords : allithiolane * Allium siculum * Allium tripedale * butiin * cepaene * homoisoalliin * Nectaroscordum * onionin * samardala * sulfine * thiolane * thiosulfinate
OECD category: Microbiology
Impact factor: 6.1, year: 2022
Method of publishing: Limited access
https://pubs.acs.org/doi/10.1021/acs.jafc.3c00317

Organosulfur compounds formed upon comminuting the bulbs of two Allium subgenus Nectaroscordum species (Allium siculum and Allium tripedale) were analyzed by HPLC-PDA-MS/MS. The major organosulfur components were isolated and structurally characterized (MS, NMR), including several previously unknown compounds. It was found that the organosulfur chemistry occurring when these plants are cut is very similar to that observed in onion (Allium cepa). In all cases, however, the organosulfur compounds found in Nectaroscordum species were higher homologues of those observed in onion, being formed by various combinations of C1 and C4 building blocks derived from methiin and homoisoalliin/butiin, respectively. Thiosulfinates, bis-sulfine, cepaenes, and several cepaene-like compounds were identified among the major organosulfur components present in the homogenized bulbs. Several groups of 3,4-diethylthiolane-based compounds, structurally homologous with onionin A, cepathiolane A, allithiolanes A-H, and cepadithiolactone A, found in onion, were also detected.
Permanent Link: https://hdl.handle.net/11104/0342850