Antioxidants, either exogenous or endogenous, whether synthetic or natural, can be effective in preventing free radical formation by scavenging them or promoting their decomposition and suppressing such disorders.[19,20-22] Currently, there is a growing interest toward natural antioxidants of herbal resources.[23-25] Epidemiological and in vitro studies on medicinal plants and vegetables strongly supported this idea that plant constituents with antioxidant activity are capable of exerting protective effects against oxidative stress in biological systems.[26-29] Free radical formation is controlled naturally by various beneficial compounds known as antioxidants.[30] In addition to fruits and vegetables, herbs of no particular nutritional value can also constitute an important source of antioxidants.[31] The leaves from black and green tea (Camellia sinensis), long used amongst western and Asian populations, respectively, constitute an important source of potentially health-protecting antioxidants[32,33] and world-wide represent the most popular form of daily herb consumption.
Antioxidants, either exogenous or endogenous, whether synthetic or natural, can be effective in preventing free radical formation by scavenging them or promoting their decomposition and suppressing such disorders.[19,20-22] Currently, there is a growing interest toward natural antioxidants of herbal resources.[23-25] Epidemiological and in vitro studies on medicinal plants and vegetables strongly supported this idea that plant constituents with antioxidant activity are capable of exerting protective effects against oxidative stress in biological systems.[26-29] Free radical formation is controlled naturally by various beneficial compounds known as antioxidants.[30] In addition to fruits and vegetables, herbs of no particular nutritional value can also constitute an important source of antioxidants.[31] The leaves from black and green tea (Camellia sinensis), long used amongst western and Asian populations, respectively, constitute an important source of potentially health-protecting antioxidants[32,33] and world-wide represent the most popular form of daily herb consumption.
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