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Bioassay-Guided Isolation Of A Vasorelaxant Active Compound From Kaempferia Galanga L, Mohd Rais Mustafa, Khalijah Awang, Mustafa Ali Mohd, Rozana Othman, Halijah Ibrahim
Bioassay-Guided Isolation Of A Vasorelaxant Active Compound From Kaempferia Galanga L, Mohd Rais Mustafa, Khalijah Awang, Mustafa Ali Mohd, Rozana Othman, Halijah Ibrahim
Mohd Rais Mustafa
Bioassay-guided fractionation was performed on a crude dichloromethane extract of Kaempferia galanga L. using chromatography techniques. Screening of the extract for biological activity started with the brine shrimp lethality bioassay, followed by the study of its antihypertensive activity on anaesthetized rats, which involved monitoring of the extract's effect on mean arterial blood pressure. The components of the fractions obtained from the separation procedures were analyzed using gas chromatography (GC). The yield of the CH2Cl2 extract was 0.29% of the crude plant extract. Analysis of the data for brine shrimp lethality test using the Finney computer program showed that this extract …