during steam/hydro-distillation of aromatic crops, a small hydrophilic essential oil fraction escapes into the condensate wastewater. lemongrass [cymbopogon flexuosus (nees ex steud.) wats.] condensate waste water obtained after distilling the biomass and collecting the essential oil was subjected to re-distillation and liquid-liquid extraction with n-hexane and ethyl acetate to isolate the dissolved aromatic oil. gc-fid, gc-ms analyses of these oils led to the identification of thirty-seven constituents comprising mostly oxygenated monoterpenes (78.3-90.7%). neral (35.1%) and geranial (44.3%) predominated in the lemongrass biomass essential oil. 6-methyl-5-hepten-2-one (7.3-32.9%), neral (26.7-32.9%) and geranial (24.9-33.9%) are the major constituents of the recovered aromatic oils which can be used for isolating citral (51.6-66.8%), for application in cosmetics, botanical pesticides and aromatherapy. the essential oil isolated by re-distillation can serve as a new source for isolation of 6-methyl-5-hepten-2-one (32.9%). solvent-extracted aromatic oils contained higher amounts of citral (neral + geranial) (62.9-66.8%) relative to re-distilled essential oil (51.6%).