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Biological activity of phototoxic compounds in Bidens squarrosa H.B.K. (Asteraceae)

Pérez-Amador1 MC, V Muñoz Ocotero1, F García Jiménez2

1 Facultad de Ciencias, Departamento de Biología.
2 Instituto de Química. Universidad Nacional Autónoma de México. Ciudad Universitaria. 04510. México, D.F. México.
Address Correspondence to: Dr. Maria Cristina Pérez-Amador; Facultad de Ciencias. UNAM. Circuito Exterior s/n Ciudad Universitaria. C.P. 04510. México D.F.;

Phyton-International Journal of Experimental Botany 2008, 77(all), 103-111.


Phototoxic compounds (polyacetylenes and thiophenes) and their biological activity were determined on Bidens squarrosa plants by measuring their antibacterial and anti-inflammatory potential. Phototoxic compounds were extracted with hexane, characterized by TLC, and their presence confirmed by U.V. spectrum of their extracts and bactericidal potential. Antibacterial activity of the hexane, ethyl acetate and methanol extracts was measured against Bacillus subtilis and Escherichia coli, and their antiinflammatory potential was determined by the mouse ear edema test.


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, P., Jiménez, F. G. (2008). Biological activity of phototoxic compounds in Bidens squarrosa H.B.K. (Asteraceae). Phyton-International Journal of Experimental Botany, 77(all), 103–111.

cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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