Počet záznamů: 1
Applications of Direct Analysis in Real Time-Mass Spectrometry (DART-MS) in Allium Chemistry. (Z)-Butanethial S-Oxide and 1-Butenyl Thiosulfinates and Their S-(E)-1-Butenylcysteine S-Oxide Precursor from Allium siculum
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SYSNO ASEP 0339574 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Applications of Direct Analysis in Real Time-Mass Spectrometry (DART-MS) in Allium Chemistry. (Z)-Butanethial S-Oxide and 1-Butenyl Thiosulfinates and Their S-(E)-1-Butenylcysteine S-Oxide Precursor from Allium siculum Tvůrce(i) Kubec, R. (CZ)
Cody, R.B. (US)
Dane, A.J. (US)
Musah, R.A. (US)
Schraml, Jan (UCHP-M) RID, ORCID, SAI
Vattekkatte, A. (US)
Block, E. (US)Zdroj.dok. Journal of Agricultural and Food Chemistry. - : American Chemical Society - ISSN 0021-8561
Roč. 58, č. 2 (2010), s. 1121-1128Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova allium siculum ; nectaroscordum ; allium cepa Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP IAA400720706 GA AV ČR - Akademie věd CEZ AV0Z40720504 - UCHP-M (2005-2011) UT WOS 000273671900062 DOI 10.1021/jf903733e Anotace L(Z)-Butanethial S-oxide isolated from the plant was shown to be identical to a synthetic sample. Its likely precursor, (R-S,R-C,E)-S-(1-butenyl)cysteine S-oxide (homoisoalliin), was isolated from homogenates of A. siculum, and a closely related species Allium tripedale, and fully characterized. Through use of LC-MS, a series of related gamma-glutamyl derivatives were tentatively identified in A. sicutum and A. tripedale homogenates, including gamma-glutamyl-(E)-S-(1-butenyl)cysteine and its S-oxide, gamma-glutamyl-S-butylcysteine and its S-oxide, and gamma-glutamyl-Smethylcysteine and its S-oxide. Because compounds containing the 1-butenyl group have not been previously identified in genus Allium species, this work extends the range of known Allium sulfur compounds, The general applicability of DART mass spectrometry in identifying naturally occurring, thermally fragile thial S-oxides and thiosulfinates is illustrated with onion, Allium cepa, as well as a plant from a different genus. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2010
Počet záznamů: 1