SciELO - Scientific Electronic Library Online

 
vol.12 número4Modelagem matemática e parâmetros qualitativos da secagem de folhas de capim-limão [Cymbopogon citratus (DC.) Stapf]Estacas de diferentes diâmetros na propagação de Lippia alba (Mill.) N.E.Br. - Verbenaceae índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

Compartilhar


Revista Brasileira de Plantas Medicinais

versão impressa ISSN 1516-0572

Resumo

VENTUROSO, L.R. et al. Influence of different sterilization methods on the antifungal activity of aqueous extracts of medicinal plants. Rev. bras. plantas med. [online]. 2010, vol.12, n.4, pp.499-505. ISSN 1516-0572.  http://dx.doi.org/10.1590/S1516-05722010000400014.

Three experiments were conducted in the Laboratory of Phytopathology of Federal University of Grande Dourados, Mato Grosso do Sul State, Brazil, to evaluate in vitro the antifungal activity of aqueous extracts of garlic, cinnamon and clove subjected to different processes of disinfection and/or sterilization against the development of Fusarium solani. The experimental design for each trial was completely randomized, with 5 treatments and 8 replicates. Aqueous extracts at a concentration of 20% were subjected to the methods of filtering (FI), water bath at 65ºC (WB), autoclaving at 100ºC (AT1), autoclaving at 120ºC (AT2) and control treatment (PDA alone). Subsequently, the extracts were incorporated into PDA medium, added to Petri dishes, to where F. solani mycelium discs of 0.3cm diameter were transferred. Then, the plates were incubated at 25ºC with 12-h photoperiod. The treatments were analyzed as to mycelial growth of the colony, percentage of inhibition and growth rate of F. solani. Increased fungal growth was observed for the control treatment, demonstrating the antifungal potential of the extracts. The sterilization method influenced the efficiency of garlic and cinnamon extracts. For garlic, FI led to the best results, whereas for cinnamon extract there were no differences among the methodologies FI, WB and AT1. The different methods used did not interfere with the efficiency of the aqueous extract of clove.

Palavras-chave : Allium sativum; Cinnamomum zeylanicum; Syzygium aromaticum.

        · resumo em Português     · texto em Português     · Português ( pdf )

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons