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Evidence-Based Complementary and Alternative Medicine
Volume 2013, Article ID 480509, 5 pages
Research Article

Antibacterial Chemical Constituent and Antiseptic Herbal Soap from Salvinia auriculata Aubl.

1Department of Biochemistry and Molecular Biology, Federal University of Viçosa, 36570-000 Viçosa, MG, Brazil
2Department of Chemistry, Federal University of Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil

Received 14 October 2013; Revised 12 December 2013; Accepted 18 December 2013

Academic Editor: Ulysses Paulino de Albuquerque

Copyright © 2013 Samia Lima et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The bioassay-guided isolation of the active extract of Salvinia auriculata Aubl. led to the separation of three main compounds, characterized as stigmasterone, stigmasterol, and friedelinol. The pure form of diketosteroid presented a potential antibacterial activity with a minimum inhibitory concentration (MIC) value of 0.01 mg mL−1 against Staphylococcus aureus isolated from animals with mastitis infections. The active extract also showed a similar result to that previously obtained with pure diketosteroid when tested with the same isolates. The present study’s results demonstrate the potential of this plant as an excipient for the production of antibacterial soaps aimed at controlling bovine mastitis infections, especially on small farms.