UHPLC-PDA-ESI-TOF/MS metabolic profiling and antioxidant capacity of arabica and robusta coffee silverskin: Antioxidants vs phytotoxins.
Food Res Int
; 99(Pt 1): 155-165, 2017 09.
Article
en En
| MEDLINE
| ID: mdl-28784472
ABSTRACT
A deeper knowledge of the chemical composition of coffee silverskin (CS) is needed due to the growing interest in its use as a food additive or an ingredient of dietary supplements. Accordingly, the aim of this paper was to investigate the metabolic profile of aqueous extracts of two varieties of CS, Coffee arabica (CS-A), Coffee canephora var. robusta (CS-R) and of a blend of the two (CS-b) and to compare it to the profile of Coffee arabica green coffee (GC). Chlorogenic acids, caffeine, furokauranes, and atractyligenins, phytotoxins not previously detected in CS, were either identified or tentatively assigned. An unknown compound, presumably a carboxyatractyligenin glycoside was detected only in GC. Caffeine and chlorogenic acids were quantified while the content of furokauranes and atractyligens was estimated. GC and CS were also characterized in terms of total polyphenols and antioxidant capacity. Differences in the metabolites distribution, polyphenols and antioxidant capacity in GC and CS were detailed.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Asunto principal:
Semillas
/
Toxinas Biológicas
/
Cromatografía Líquida de Alta Presión
/
Espectrometría de Masa por Ionización de Electrospray
/
Coffea
/
Metabolómica
/
Fitoquímicos
/
Análisis de los Alimentos
/
Antioxidantes
Idioma:
En
Revista:
Food Res Int
Año:
2017
Tipo del documento:
Article