Abstract:
This research was conducted on an aquatic plant, Cryptocoryne elliptica that grow
through in-vitro culture. The main purpose of this research was to investigate antivibrio
activity of methanol and aqueous extracts of C.elliptica. Beside that, the minimal
inhibitory concentration (MIC) of extracts for antivibrio and the age of plant with highest
antivibrio were determined. The grinded dried leaves and petioles with 30, 50 and 70
cultivation days were used in extraction. The antivibrio activity was evaluated using
Kirby-Bauer method against Vibrio alginolyticus, Vibrio parahaemolyticus and Vibrio
vulnificus. The 500µg/ml of extracts concentration were resulted in negative reaction of
antivibrio activity with absence of inhibition zones to all 30,50 and 70 cultivation days of
plant extracts. Overally, the result showed of the low antivibrio compound produce by in
vitro plantlet of C.elliptica. Through this research suggesting that, C.elliptica is not
suitable as a good control toward Vibrio spp.
