%0 Journal Article %T Pharmacognosy and technology %A Narayana D.B.A %J Pharmacognosy Magazine %D 2010 %I Medknow Publications %U http://www.phcog.com/article.asp?issn=0973-1296;year=2010;volume=6;issue=23;spage=145;epage=146;aulast=Narayana