The high levels of antioxidant activity of plant-derived natural
chemical substances, especially phenolic compounds, have led
to their use in the food and pharmaceutical industries. Apart from
their antioxidative properties, plant-based materialsmaybe valued
for their antimicrobial, antiviral and anti-inflammatory activities
(Rice-Evans et al., 1997), and those substances that have been
shown to inhibit pharmaceutical enzymes such as tyrosinase are
of particular interest for their potential nutritional, nutraceutical and pharmaceutical applications (Shi et al., 2005; Farhoosh et al.,
2008).