Efeito inibitório in vitro de extrato vegetal de Allium sativum sobre Aspergillus niger Tiegh

In vitro inhibitory effect of Allium sativum extract on Aspergillus niger Tiegh. Sisal (Agave sisalana Perrine ex Engelm.) is the main source of plant hard fiber extraction in the world. In Brazil, its cultivation occupies a large area of poor soils in the semi-arid region of Bahia, Paraiba and Rio Grande do Norte States, and in regions with scarce or no alternative to explore other crops. Based on the inhibitory property of plant extracts on fungal development, the inhibitory effect of garlic (Allium sativum L.) extract was evaluated on the fungus Aspergillus niger isolated from sisal crop. The plant extract was incorporated into melting PDA medium around 45oC, at the following concentrations: 0, 500, 1000, 2000, 50000, 10000, and 50000 mg L -1 . (OBS: M. Elena, ha duas doses repetidas; creio que a primeira seja 5000). The concentration 50000 mg L -1 garlic extract was effective in inhibiting the growth of the fungus Aspergillus niger extracted from sisal crop.