Abstract:
:TLC autographic assays revealed in the CH(2)Cl(2) extract of Tinospora crispa Miers (Menispermaceae) the presence of three compounds exhibiting antioxidant and radical scavenging properties towards beta-carotene and 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical. They were isolated and identified as N-CIS-feruloyltyramine, N-trans-feruloyltyramine and secoisolariciresinol. When tested in dilution assays on the reduction of the DPPH radical, these 3 compounds proved to be more active than the synthetic antioxidant butylhydroxytoluene (BHT). Further investigation of the CH(2)Cl(2) extract led to the isolation of vanillin, syringin, the alkaloid N-formylnornuciferin and the diterpene derivatives borapetosides B and C. In addition, a LC/UV/MS analysis enabled the on-line identification of borapetoside F and N-formylannonain.
journal_name
Planta Medjournal_title
Planta medicaauthors
Cavin A,Hostettmann K,Dyatmyko W,Potterat Odoi
10.1055/s-2006-957466subject
Has Abstractpub_date
1998-06-01 00:00:00pages
393-6issue
5eissn
0032-0943issn
1439-0221journal_volume
64pub_type
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