of his worldly goods, except just a trifle, by way of remembrance, to his nephew down in -shire, and an annuity to his wife.'
In the case of monophenols (ArOH), such as [alpha]-tocopherol and 2,6-di-tert-butyl-4-methylphenol (BHT), the second RO[O.sup.*] radical is trapped by addition on aromatic ring of Ar[O.sup.*] whereas in the case of catechols (Cat[H.sub.2]), by Hatom
transfer from the Cat[H.sup.*] radical to RO[O.sup.*].
The first one is Hatom
transfer (HAT) mechanism in which the phenolic H atom is transferred in one step.
The great potential of free radicals to react with various compounds by electron transfer, proton transfer, Hatom
abstraction or addition reaction may involved in the pathological of various diseases [20,21].Many plant compounds can scavenge reactive oxygen species (ROS) and thereby directly reduce-oxidative stress .Among these, flavonoids seem to be potent candidates because they show broad pharmacological activities and widely distributed in many edible plants .