Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/6770
Title: Bioactive diterpenes from the mangrove <i style="">Avicennia officinalis</i> Linn
Authors: Subrahmanyam, C
Kumar, S Ratna
Reddy, G Damodar
Keywords: <i style="">Avicennia officinalis</i>
diterpenes
antimicrobial activity
Mangrove
Issue Date: Nov-2006
Publisher: CSIR
Series/Report no.: Int.Cl.<sup>8</sup> A61K
Abstract: <smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="country-region"><smarttagtype namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"> The hexane extract of the roots of <i style="">A. officinalis</i> Linn, collected from the coast of Ongole, A.P., has yielded <i style="">ent</i>-16-hydroxy-3-oxo-13-<i style="">epi</i>-manoyl oxide, rhizophorin-B <b style="">1</b> and compound <b style="">A</b>, while ethyl acetate extract give triacontan-1-ol, ribenone, excoecarin A, <i style="">ent-</i>16-hydroxy-3-oxo-13-<i style="">epi</i>-manoyl oxide,<i style=""> ent</i>-15-hydroxy-labda-8(17),13<i style="">E</i>-dien-3-one, compound <b style="">A, 1</b> and <i style="">ent</i>-3a,15-dihydroxy-labda-8(17),13<i style="">E</i>-diene. Compound <b style="">A</b> is identified as <i style="">ent</i>-(13<i style="">S</i>)-2,3-seco-14-labden-2,8-olide-3-oic acid <b style="">2</b>, a new diterpenoid, on the basis of its spectral data. Excoecarin A,<i style=""> ent</i>-16-hydroxy-3-oxo-13-<i style="">epi</i>-manoyl oxide and <i style="">ent</i>-15-hydroxy-labda-8(17),13<i style="">E</i>-dien-3-one show moderate antifungal activities against <i style="">Rhizopus oryzae</i> and <i style="">Aspergillus niger</i> while rhizophorin-B <b style="">1</b> exhibits antibacterial activity against <i style="">Bacillus subtilis.</i> </smarttagtype></smarttagtype>
Description: 2556-2557
URI: http://hdl.handle.net/123456789/6770
ISSN: 0975-0983(Online); 0376-4699(Print)
Appears in Collections:IJC-B Vol.45B(11) [November 2006]

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