Carotenoid composition of the mushroom Scarlet elf cup (Sarcoscypha coccinea)

Péter Molnár; Erzsébet Ősz; Erika Turcsi; József Deli

doi:10.1016/j.heliyon.2019.e01883

Carotenoid composition of the mushroom Scarlet elf cup (Sarcoscypha coccinea)

Heliyon. 2019 Jun 20;5(6):e01883. doi: 10.1016/j.heliyon.2019.e01883. eCollection 2019 Jun.

Authors

Péter Molnár¹, Erzsébet Ősz², Erika Turcsi², József Deli^{1

2}

Affiliations

¹ Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs, Rókus u. 2, H-7624 Pécs, Hungary.
² Department of Biochemistry and Medical Chemistry, Medical School, University of Pécs, Szigeti út 12, H-7624 Pécs, Hungary.

Abstract

From the extract of the mushroom Scarlet elf cup (Sarcoscypha coccinea) (all-E, 2'R)- plectaniaxanthin, (all-E)-2'-dehydroplectaniaxanthin and a number of sterically unhindered (Z)-isomers of these carotenoids were isolated and partially characterized. The carotenoid composition of the Scarlet elf cup extract was determined by HPLC analysis. The structure elucidation of the isolated compounds was carried out by UV/Vis spectroscopy, ¹H and ¹³C-NMR spectroscopy, IR spectroscopy and mass spectrometry. The NaBH₄-reduction of (all-E)-2'-dehydroplectaniaxanthin resulted in the racemic mixture of (R)- and (S)-plectaniaxanthin. The isolated (Z)-isomers were identified by their UV/Vis spectroscopic properties.

Keywords: (Z)-Isomers; Analytical chemistry; Carotenoids; Food analysis; HPLC analysis; Isolation; Mushroom; Natural product chemistry; Organic chemistry; Structure elucidation.