Screening of antibacteria from Thai traditional herbs against shrimp pathogenic bacteria
1996
Sathaphon Direkbutsarakhom | Somphon Rungkamnoetwong | Angkhana Hiransali
Sixteen kinds of Thai traditional herbs; Ocimum sanctum white and red strains, Phyllanthus recticulatus, Phyllanthus pulcher, Cassia alata, Tinospora cordifolia, Eclipta alba, Tinospora crispa, Psidium guajava, Clinacanthus nutans, Andrographis paniontata, Momordica charantina, Phyllanthus acidus and 3 strains of Phyllanthus spp. including P. amarus, P. debelis, and P. urinaria were tested for the antibacterial efficacy against 10 strains of Vibrio spp. isolated from diseased shrimp by using plate dilution method (Tragen 1983). Eleven species of the tested herbs showed antibacterial activities, however only two species of them (P. guajava and M. charantina) showed the highest effective against Vibrio spp. Minimal inhibitory concentration of P. guajava was found at 0.625 mg/ml while the M. charantina was 1.25 mg/ml. Further studies were considerably carried on in various aspects of these two herb species in order to apply in the large scale of experimentation.
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