Antioxidant activity of polyphenolic extract of monofloral honeybee-collected pollen from mesquite (Prosopis juliflora, Leguminosae)

Abstract

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. r

Flavonoid composition and antioxidant capacity of the edible flowers ofAgave durangensis(Agavaceae)

“…Pollen is considered as an important source of flavonol glycosides and phenolic acids (Almaraz-Abarca et al, 2007;Wiermann & Vieth, 1983). Both classes of compounds, providing significant antioxidant properties (Campos, Da Cunha, Navarro, & Utrilla, 1994), vary in composition among different groups of plants with a species-specific tendency (AlmarazAbarca et al, 2004(AlmarazAbarca et al, , 2006.…”

Chemical composition and antioxidant activity of <i>Apis mellifera</i> bee pollen from northwest Algeria

“…The antioxidant activity of phenolic compounds depends on the chemical structure and can be determined by the action of the molecule as reducing agents (speed of free radical inactivation, reactivity with other antioxidants and metal chelating potential). In vitro trials have demonstrated that some flavonoids have greater antioxidant activity than vitamins E and C [12]. Epidemiologic studies have also demonstrated positive correlation between the increase in phenolic compound consumption with antioxidant action [13] and reduction of the risk of cardiovascular diseases and certain types of cancer [14].…”

Effects of Prosopis farcta fruit Hydroalcoholic Extract on Serum Concentrations of Glucose and Lipids in Insulin Resistance Model of Rats

“…PF is known to have some components such as lectin, L-arabinose, 5-hydroxyl, quercetin (flavonoid), tryptamine (alkaloid) and apigenin [14]. Antioxidant activity of flavonoids present in PF has been reported [15]. The obtained results from the antioxidant capacity of honeybee-collected pollen extract from Prosopis juliflora suggested that it is an important source of flavonoids which can be considered as natural antioxidants [15,16].…”

“…Antioxidant activity of flavonoids present in PF has been reported [15]. The obtained results from the antioxidant capacity of honeybee-collected pollen extract from Prosopis juliflora suggested that it is an important source of flavonoids which can be considered as natural antioxidants [15,16]. Alharbi et al [17] showed that flavonoids in PF act as strong antioxidant and decrease total cholesterol, triglycerides, malondialdehyde and also increase HDL-C in tetrachloride-induced hepatotoxicity rats.…”