Ahmedabad, Gujarat, India, for spectral measurements. The biological part GSI-IX mw of this work was supported by the Department of Pharmaceutical Sciences, Birla Institute of Technology, Mesra, Ranchi, India. “
“Traditional medicine system is in practice across the world since time immemorial and is still providing a source of active molecules for the treatment of various diseases. Studies have indicated that more than 40% of the population across world relies on the traditional medicine system or plants for their healthcare.1 and 2 India is represented by a very rich natural biodiversity, which offers unique and wide opportunity for drug discovery researchers. Ayurveda is one of the traditional medicinal

system followed in India which describes many plants for the treatment of different human ailments because of their medicinal properties.3 and 4 Use of medicinal plants for treating human ailments dates back to 200 BC and it has been well

recorded in Ayurveda and other systems. Our this website ancestors have effectively used a number of plants not only for the treatment of several common ailments such as fever, cold, cough, but also for various bacterial, fungal and parasitic infections. Many of the plant derived or originated compounds have been effectively used for the treatment of several human diseases such as malaria (chloroquine and artemisinin), and cancer (vincristine and vinblastine). The use of neem and basil plant as an antibacterial

is very well established and several compounds of interest have been isolated from these plants.5 and 6 Reactive oxygen species (ROS) are various forms of activated oxygen responsible for oxidative damage produced due to various biochemical reactions which include lipid peroxidation, oxidative DNA damage and protein oxidation Oxygenase and thus leading to severe damage. ROS includes various molecules such as superoxide anion radical (O−2), hydroxyl radicals (OH−) and non-free radical species such as H2O2 which are different forms of activated oxygen. These molecules impair factors responsible for inhibitors cellular injury and aging process. Hence current attention has been primarily focused on natural antioxidants mainly from plant sources due to their associated health benefits.2, 7, 8 and 9 Plants comprising of flavonoids, phenolics and good number of alkaloids have been reported to possess very good antioxidant property. Screening of medicinal plants for their active components is increasing because of the acceptance of herbal medicine as an alternative form of health care and these plant extracts with novel molecules are being employed for further chemical and pharmacological investigations.10, 11, 12 and 13 Several plants have been proved to be the potential sources of natural antioxidants and are sources of compounds to neutralize the effect of ROS.