Determination of floral fragrances of Rosa hybrida using solid-phase trapping-solvent extraction and gas chromatography-mass spectrometry

Floral fragrances emanated from Rosa hybrida were determined by solid-phase trapping extraction and GC-MS. A novel protocol of sampling technique was established. There is a variation in the recoveries depending on the adsorb ent and components. A total of 41 compounds were: identified in the floral fragrances of Rosa hybrida. These include alcohols, aldehydes, alkanes, mon oterpenes, sesquiterpene, esters, ether and ketones. Citral, n-nonane, n-bu tyl acetate, n-decane, P-phenylethyl acetate and hexadecanol were major com ponents. Floral fragrances differ between rose species and sample to sample within a single species. Interestingly, endocrine disrupters such as bis(2 -ethylhexyl) phthalate were detected simultaneously. (C) 2000 Elsevier Scie nce B.V. All rights reserved.