1. Vibrio spp. from Macrobrachium amazonicum prawn farming are inhibited by Moringa oleifera extracts
Raimunda Sâmia Nogueira BRILHANTE ; Glaucia Morgana DE MELO GUEDES ; Tereza DE JESUS PINHEIRO GOMES BANDEIRA ; José Luciano Bezerra MOREIRA ; Débora DE SOUZA COLLARES MAIA CASTELO-BRANCO ; Waldemiro DE AQUINO PEREIRA-NETO ; Rossana DE AGUIAR CORDEIRO ; José Júlio Costa SIDRIM ; Marcos Fábio Gadelha ROCHA ; Jamille Alencar SALES ; Celia Maria DE SOUZA SAMPAIO ; Manoel DE ARAÚJO NETO PAIVA ; Lucas Pereira DE ALENCAR ; Yago Brito DE PONTE ; Marcos Fábio Gadelha ROCHA ; Francisco Geraldo BARBOSA
Asian Pacific Journal of Tropical Medicine 2015;8(11):919-922
Objective: To investigate the in vitro antimicrobial potential of extracts of stem, leaves, flowers, pods and seeds of Moringa oleifera (M. oleifera) against Vibrio spp. from hatchery water and the prawn Macrobrachium amazonicum. Methods: The ethanol extracts of stem, leaves, pods and seeds and chloroform extract of flowers of M. oleifera were tested against Vibrio cholerae (V. cholerae) serogroups non-O1/non-O139 (n = 4), Vibrio vulnificus (n = 1) and Vibrio mimicus (n = 1). Escherichia coli (E. coli) (ATCC® 25922) was used as quality control. Vibrio species were obtained from Macrobrachium amazonicum prawns and from hatchery water from prawn farming. The Minimum Inhibitory Concentration (MIC) was determined by broth microdilution method. Results: The best result was obtained with the ethanol extract of pods, which inhibited three strains of the V. cholerae, Vibrio vulnificus, Vibrio mimicus and E. coli (MIC range 0.312-5.000 mg/mL). The chloroform extract of flowers was effective against all V. cholerae strains and E. coli (MIC range 0.625-1.250 mg/mL). However, the ethanol extracts of stem and seeds showed low effectiveness in inhibiting the bacterial growth. Conclusions: The extracts of pods, flowers and leaves of M. oleifera have potential for the control of Vibrio spp. Further studies are necessary to isolate the bioactive compounds responsible for this antimicrobial activity.
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