Soluble and bound hydroxycinnamates in coffee pulp (Coffea arabica) from seven cultivars at three ripening stages.
J Agric Food Chem
; 62(31): 7869-76, 2014 Aug 06.
Article
em En
| MEDLINE
| ID: mdl-25008987
The contents of soluble and bound hydroxycinnamates (HCAs) were analyzed in coffee pulp (CP) of seven cultivars of Coffea arabica at three different ripening stages. Methodologies for the extraction and analysis of HCAs were evaluated and improved. HCAs were present mainly in the soluble fraction (68-97%). Chlorogenic acid was the main phenolic acid (94-98%) in the soluble fraction, whereas caffeic acid was the most abundant HCA found in the bound fraction (72-88%). Small amounts of free and bound ferulic and p-coumaric acids were also detected. The content of total HCAs in CP reached the maximum concentration at the semiripe stage (7.4-25.5 mg/g CP, dw) but decreased at the ripe stage for six of the seven cultivars. These findings suggest that unripe or semiripe coffee cherries, considered as defective cherries, are a potential inexpensive source of phenolic compounds, such as chlorogenic and caffeic acids.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Sementes
/
Ácidos Cumáricos
/
Coffea
Idioma:
En
Revista:
J Agric Food Chem
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Estados Unidos