Volume 61, November 2014, Pages 460-471
a
CICECO and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
b Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo (CEBAL), Instituto Politécnico de Beja (IPBeja), 7801-908 Beja, Portugal
c QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
b Centro de Biotecnologia Agrícola e Agro-Alimentar do Alentejo (CEBAL), Instituto Politécnico de Beja (IPBeja), 7801-908 Beja, Portugal
c QOPNA and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
Abstract
The phenolic composition of Cynara cardunculus L. var. altilis (DC) from south of Portugal was determined by analyzing the methanol/water/acetic acid (49.5:49.5:1) extracts of the different morphological parts of the plant,
through high temperature-ultra high pressure liquid
chromatography-tandem mass spectrometry. From the twenty-eight phenolic
compounds identified, eriodictyol hexoside was described for the first
time in C. cardunculus L., and 1,4-di-O-caffeoylquinic acid, naringenin
7-O-glucoside, naringenin rutinoside, naringenin, luteolin
acetyl-hexoside and apigenin acetyl-hexoside as cardoon components.
Stalks outer part and capitula florets showed the highest
hydroxycinnamic acids and flavonoids contents, respectively. Capitula
receptacle and bracts, and stalks inner part also presented considerably
high hydroxycinnamic acids contents, while leaves were rich in
flavonoids. Finally, stalks outer part and capitula receptacle and
bracts extracts showed the highest antioxidant activity which was in
perfect tune with the phenolic compounds, particularly to
hydroxycinnamic acids. These results clearly demonstrate the potential
of this crop as a source of antioxidant phenolic compounds. © 2014
Elsevier B.V.
Author keywords
Antioxidant activity; Cultivated cardoon; High
temperature-ultra-high pressure liquid chromatography-tandem mass
spectrometry analysis; Hydroxycinnamic acids; Phenolic compounds
Indexed keywords
Engineering controlled terms: Chromatography;
Flavonoids; High pressure liquid chromatography; Mass spectrometry;
Organic compounds; Phenols; Value engineering
Anti-oxidant activities; Cultivated cardoon;
Hydroxycinnamic acids; Liquid chromatography-tandem mass spectrometry;
Phenolic compounds; Ultrahigh pressure
Engineering main heading: Plants (botany)
GEOBASE Subject Index: acetic acid; antioxidant;
chemical composition; herb; high pressure; high temperature; liquid
chromatography; mass spectrometry; methanol; morphology; organic
compound; phenol; cultivation; medicinal plant; phenolic compound; plant extract
Species Index: Cynara cardunculus