isparljivi PROIZVODI razlaganja glukozinolata i ETARSKO ULJE VRSTE dESCURAINIA SOPHIA WEB EX PRANTL (BRASSICACEAE)

Volatile constituents obtained by autolysis of aerial and underground parts of D. sophia and the essential oil obtained by hydrodistillation of whole plant samples were analyzed in detail by GC and GC-MS. In total, 71 constituents were identified, accounting for more than 90% of the total peak areas in the chromatograms. Both aerial and underground autolysates contained considerable amounts of lignan arctigenin and cuticular wax compounds. The essential oil was dominated by glucosinolate breakdown product 4-pentenenitrile. Glucosinolate degradation products identified in the essential oil and autolysates, 3-butenyl isothiocyanate, 4-pentenenitrile and allyl isothiocyanate, suggested the presence of gluconapin and sinigrin in this species as the most likely “mustard oil” precursors.HIGHLIGHTSVolatile constituents of Descurainia sophia essential oil and autolysates were analyzed in detail by GC and GC-MS.The analyses allowed the identification of 71 compounds in total.Descurainia sophia contains glucosinolates gluconapin and sinigrin and lignan arctigenin. Detaljnim GC i GC-MS analizama etarskog ulja i isparljivih sastojaka dobijenih autolizom nadzemnog dela i korena vrste Descurainia sophia identifikovano je ukupno 71 jedinjenje, odnosno više od 90% ukupno detektovanih pikova hromatograma. Oba autolizata su sadržala znatne količine sastojaka kutikularnog voska i lignana arktigenina. Najzastupljeniji sastojak etarskog ulja je bio proizvod razlaganja glukozinolata 4-pentenonitril. Degradacioni proizvodi glukozinolata identifikovani u autolizatima i etarskom ulju, 3-butenil-izotiocijanat, 4-pentenonitril i alil-izotiocijanat, ukazuju na prisustvo glukonapina i sinigrina u tkivima ove biljne vrste