%0 Journal Article %T Novel lipid constituents identified in seeds of Nigella sativa (Linn) %A Mehta %A B. K. %A Verma %A Manjul %A Gupta %A Meenal %J Journal of the Brazilian Chemical Society %D 2008 %I Sociedade Brasileira de Qu¨Şmica, SBQ %R 10.1590/S0103-50532008000300012 %X novel lipids were isolated from the unsaponifiable matter extracted from seeds of nigella sativa linn by using n-hexane. the new dienoate and two monoesters were the new lipids identified by spectral (ir, 1h- and 13c-nmr spectra, mass spectrum, elemental analysis) and chemical analysis. the dienoate (1) was identified as methylnonadeca-15,17-dienoate and two monoesters were identified as pentyl hexadec-12-enoate (2) and pentyl pentadec-11-enoate (3). linoleic acid, oleic acid, b-sitosterol and stigmasterol were identified as part of the lipid structures. all compounds exhibited moderate activity against staphylococcus aureus and poor activity against shigella spp, and klebsiella pneumoniae. %K nigella sativa %K seeds %K ranunculaceae %K aliphatic esters. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532008000300012&lng=en&nrm=iso&tlng=en