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Abstract

COMPARATIVE STUDY OF ANTIOXIDANT ACTIVITY OF METHANOLIC AND ETHANOLIC EXTRACTS OF STEVIA REBAUDIANA BERTONI

Rashmi Arnold*

ABSTRACT

In the modern word it has been realized the herbal drugs strengthens
the body system specifically and selectively without side effects. Free
radicals are generated through normal metabolism of drugs,
environmental chemicals and other xenobiotics as well as endogenous
chemicals, especially stress hormones (adrenalin and noradrenalin).
Stevia rebaudiana Bertoni, belonging to the family Asteraceae, is a
perennial sweet herb. It is a native medicinal plant of Paraguay and is
a new alternative source of calorie-free sweetener having no
carbohydrates. From the observed results of antioxidant study
following different methods it can be concluded that 80% ethanol extract and its 1-butanol
and water soluble fractions, and hot methanol and water extract of Stevia rebaudiana leaves
possess significant antioxidant activity.

Keywords: Stevia rebaudiana, Antioxidant activity, Methanolic and Ethanolic extracts etc.


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