TY - JOUR
T1 - Flavonoid composition and antioxidant capacity of the edible flowers of Agave durangensis (Agavaceae)
AU - Barriada-Bernal, Luis Gerardo
AU - Almaraz-Abarca, Norma
AU - Delgado-Alvarado, Eli Amanda
AU - Gallardo-Velázquez, Tzayhrí
AU - Ávila-Reyes, José Antonio
AU - Torres-Morán, Martha Isabel
AU - González-Elizondo, María Del Socorro
AU - Herrera-Arrieta, Yolanda
N1 - Funding Information:
The authors thank Comisión de Operación y Fomento a las Actividades Académicas, Instituto Politécnico Nacional for the stimuli for research, to Consejo Nacional de Ciencia y Tecnología for the grant to one of the authors, and the reviewers, who made suggestions that certainly improved the quality of the manuscript.
PY - 2014/4/3
Y1 - 2014/4/3
N2 - The antioxidant properties and the flavonoid composition of extracts of different hydrophobicity prepared from the entire edible flowers of Agave durangensis were evaluated. Separately, total extracts of tepals and anthers-pollen were analyzed in the same manner. The high performance liquid chromatography with photodiode array detection (HPLC-DAD) analysis revealed a total of eight flavonols (five quercetin glycosides and three kaempferol glycosides), varying in number and concentration in the different extracts. The total extracts of the entire flowers showed the highest flavonoid content (1210.4 -g/g dry extract) and the most complex flavonoid profile (eight compounds). All the extracts showed important antioxidant activity, which was not evidently associated with their flavonoid content. The total extracts of tepals showed the highest antioxidant properties (total antioxidant capacity, free radical scavenging activity, and iron reducing capacity: 30.2 mg ascorbic acid equivalents, EC50 = 0.074 -g/mL, and IC50 = 43.28 -g/mL, respectively). The flowers of A. durangensis represent an important source of antioxidant flavonols.
AB - The antioxidant properties and the flavonoid composition of extracts of different hydrophobicity prepared from the entire edible flowers of Agave durangensis were evaluated. Separately, total extracts of tepals and anthers-pollen were analyzed in the same manner. The high performance liquid chromatography with photodiode array detection (HPLC-DAD) analysis revealed a total of eight flavonols (five quercetin glycosides and three kaempferol glycosides), varying in number and concentration in the different extracts. The total extracts of the entire flowers showed the highest flavonoid content (1210.4 -g/g dry extract) and the most complex flavonoid profile (eight compounds). All the extracts showed important antioxidant activity, which was not evidently associated with their flavonoid content. The total extracts of tepals showed the highest antioxidant properties (total antioxidant capacity, free radical scavenging activity, and iron reducing capacity: 30.2 mg ascorbic acid equivalents, EC50 = 0.074 -g/mL, and IC50 = 43.28 -g/mL, respectively). The flowers of A. durangensis represent an important source of antioxidant flavonols.
KW - Agave durangensis
KW - antioxidant capacity
KW - edible flowers
KW - flavonoid profiles
KW - flavonol glycosides
UR - http://www.scopus.com/inward/record.url?scp=84897422665&partnerID=8YFLogxK
U2 - 10.1080/19476337.2013.801037
DO - 10.1080/19476337.2013.801037
M3 - Artículo
SN - 1947-6337
VL - 12
SP - 105
EP - 114
JO - CYTA - Journal of Food
JF - CYTA - Journal of Food
IS - 2
ER -