Analysis of the composition and aroma of the essential leaf oil of Syzygium travancoricum from South India by GC-FID, GC-MS, and olfactometry. Seasonal changes of composition

Two essential oils of the leaves of the medicinal plant Syzygium travancori cum (Myrtaceae) from Southern India have been investigated by gas chromatog raphy combined with spectroscopy (GC-FID and GC-MS), by gas chromatography combined with olfactory analysis (GCs), and by olfactory methods alone (olf actory evaluation and odor-threshold correlation) to identify compounds res ponsible for the characteristic odors (woody-herbal, spicy, aromatic-floral , fruity, and earthy-fatty) of each sample, and for seasonally-dependent od or differences.