Screening of antiradical, antilipoperoxidant and hepatoprotective effects of nine plant extracts used in Caribbean folk medicine

Abstract

The antagonistic activity of nine plant extracts, traditionally used in Caribbean folk medicine, versus rerf-butyl hydroperoxide has been evaluated on isolated hepatocytes. These results are completed by the evaluation of the antiradical potential of these extracts against a solution of diphenyl picryl hydrazyl radical. In all cases, an aqueous extract of R o s m h u s officinalis was used as a natural reference extract.

The antioxidant, angiotensin converting enzyme inhibition activity, and phenolic compounds of bamboo shoot extracts

“…Radical scavenging activity was determined using a 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay with modification (Joyeux, Mortier, & Fleurentin, 1995;Robards, Sanchez-Moreno, Larrauri, & Sauracalixto, 1998). Eight hundred ml of each extracts was mixed with 400 mL of 0.4 mmol/L methanolic DPPH.…”

Phenolic acid content and radical scavenging activity of extracts from medlar (Mespilus germanica L.) fruit at different stages of ripening

“…The radical scavenging activity of extracts was determined using a modified assay for DPPH (1,1-diphenyl-2-picrylhydrazol) scavenging (Joyeux, Mortier, & Fleurentin, 1995). A 0.1 ml aliquot of the extract solution (0.5-1 mg ml À1 ), 2 ml of 0.05 M acetate buffer (pH 5.5), 1.9 ml of methanol and 1 ml of 0.5 mM DPPH were mixed.…”

Antioxidant and antimicrobial effect of some natural plant extracts added to lamb patties during storage

“…The interest in the antioxidant activity of plant extracts has become greater and very important (Joyeux et al, 1995;Azaizeh et al, 2005;Alma ANTIoxIDANT AND ANTIMICRoBIAL EFFECTS oF SoME NATuRAL PLANT ExTRACTS ADDED To LAMB PATTIES DuRING SToRAGE…”