TY - JOUR
T1 - Antioxidant activity of polyphenolic extract of monofloral honeybee-collected pollen from mesquite (Prosopis juliflora, Leguminosae)
AU - Almaraz-Abarca, Norma
AU - da Graça Campos, María
AU - Ávila-Reyes, José Antonio
AU - Naranjo-Jiménez, Nestor
AU - Herrera Corral, Jesús
AU - González-Valdez, Laura Silvia
PY - 2007/3
Y1 - 2007/3
N2 - The antioxidant capacity related to the phenolic composition of monospecific honeybee-collected pollen extract from the mesquite tree (Prosopis juliflora) from Durango, Mexico, was evaluated in an in vitro-biological system (as inhibitor of lipid peroxidation on mouse hepatic microsomal preparations) and in an in vivo system (on homogenized liver of bromobenzene-intoxicated mice) by quantification of thiobarbituric acid-reactive substances (TBARS). The comparison of results obtained from these two different systems was also made. The results obtained suggest that pollen of P. juliflora is an important source of flavonoids, which can be considered as natural antioxidants. Mesquite pollen extracts showed antioxidant activity related to the flavonol concentration in both the in vitro-biological system and the in vivo system with a lower activity in the latter of these systems. Under in vivo conditions and in those in which a state of oxidation in not induced, a high concentration of flavonols in the extract of mesquite pollen can have a pro-oxidant effect.
AB - The antioxidant capacity related to the phenolic composition of monospecific honeybee-collected pollen extract from the mesquite tree (Prosopis juliflora) from Durango, Mexico, was evaluated in an in vitro-biological system (as inhibitor of lipid peroxidation on mouse hepatic microsomal preparations) and in an in vivo system (on homogenized liver of bromobenzene-intoxicated mice) by quantification of thiobarbituric acid-reactive substances (TBARS). The comparison of results obtained from these two different systems was also made. The results obtained suggest that pollen of P. juliflora is an important source of flavonoids, which can be considered as natural antioxidants. Mesquite pollen extracts showed antioxidant activity related to the flavonol concentration in both the in vitro-biological system and the in vivo system with a lower activity in the latter of these systems. Under in vivo conditions and in those in which a state of oxidation in not induced, a high concentration of flavonols in the extract of mesquite pollen can have a pro-oxidant effect.
KW - Antioxidant capacity
KW - Honeybee-collected pollen
KW - Mesquite
KW - Phenolic profiles
KW - Prosopis juliflora
UR - http://www.scopus.com/inward/record.url?scp=33751171761&partnerID=8YFLogxK
U2 - 10.1016/j.jfca.2006.08.001
DO - 10.1016/j.jfca.2006.08.001
M3 - Artículo
SN - 0889-1575
VL - 20
SP - 119
EP - 124
JO - Journal of Food Composition and Analysis
JF - Journal of Food Composition and Analysis
IS - 2
ER -