Ragunathan Muthuswamy*,a and R. Senthamaraib
aDepertment of Pharmacognosy, Nehru College of Pharmacy, Pampady, Thiruvilwamala, Thrissur Dt. Kerala-680 597, India
bDepertment of Pharmacognosy, Periyar College of Pharmaceutical Sciences, Periyar Centenary Educational Complex, K. Sathanoor Main Road, Tiruchirappalli-620021, Tamilnadu, India.