Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/78459
Type: Artigo de periódico
Title: Carotenoids from guava (Psidium guajava L.): Isolation and structure elucidation
Author: Mercadante, AZ
Steck, A
Pfander, H
Abstract: Sixteen carotenoids were isolated from the flesh of Brazilian red guavas (Psidium guajava L.). Their structures were established by means of UV-visible, 400 and 500 MHz H-1 NMR, 120 and 125 MHz C-13 NMR, mass, and circular dichroism spectra. The carotenoids were identified as phytofluene, (all-E)-, (9Z)-, (13Z)-, and (15Z)-beta-carotene, (all-E)-gamma-carotene, (all-E)-, (9Z)-, (13Z)-, and (15Z)-lycopene, (all-E,3R)-beta-cryptoxanthin, (all-E,3R)-rubixanthin, (all-E,3S,5R,8S)-cryptoflavin, (all-E,3R,3'R,6'R)-lutein, (all-E,3S,5R,6R,3'S,5'R,8'R)-, and (all-E,3S,5R,6R,3'S,5'R,8'S)-neochrome. Thirteen of the carotenoids identified are reported as guava carotenoids for the first time.
Subject: carotenoids
isolation
LC/MS
NMR
guava
Psidium guajava L.
Country: EUA
Editor: Amer Chemical Soc
Rights: fechado
Identifier DOI: 10.1021/jf980405r
Date Issue: 1999
Appears in Collections:Unicamp - Artigos e Outros Documentos

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