10.22376/ijpbs.2019.10.1.p1-12 Volume 3 Issue 4 2012(October - December) The effects of extracting solvents (dichloromethane, ethyl acetate and methanol) on the valerenic acid content and antioxidant activity of roots extracts of lessThan i greaterThan Valeriana jatamansi lessThan /i greaterThan lessThan b greaterThan lessThan /b greaterThan (cultivated and wild) were investigated. The tested plant extracts contained appreciable amounts of valerenic acid content which affects the antioxidant potential of plant extracts. Higher concentration of valerenic acid and antioxidant activity was obtained using dichloromethane, as compared to ethyl acetate and methanol. The results showed that the concentration of valerenic acid plays an important role in antioxidant activity of lessThan i greaterThan V. jatamansi lessThan /i greaterThan . The concentration of valerenic acid was found in the order dichloromethane greaterThan ethyl acetate greaterThan methanol fractions in different samples of lessThan i greaterThan V. jatamansi lessThan /i greaterThan . A similar trend was also found with antioxidant activity of the plant extracts. J.S. NEGI, V.K. BISHT, A.K. BHANDARI AND R.C. SUNDRIYAL Valeriana jatamansi, valerenic acid, quantification, HPTLC, antioxidant activity 28-35