Essential Oils from Syzygium grande (Wight) Walp. and Syzygium sterrophyllum Merr. et Perry

In the present study, essential oils obtained by hydrodistillation from Syzygium grande (Wight) Walp. (syn. Eugenia grandis Wight) and Syzygium sterrophyllum Merrill & L. M. Perry were characterised by gas chromatography (GC) and gas chromatography coupled with mass spectrometry (GC-MS). The main compounds identified in the leaf and stem of S. grande were beta-caryophyllene (25.6 % and 29.3 %), sabinene (16.8 % and 10.2 %) and (E)-beta-ocimene (11.9 % and 9.5 %) respectively. On the other hand, a-pinene (35.4 %) and (E)-nerolidol (30.4 %) were the major compounds present in the leaf of S. sterrophyllum. This is the first report on the volatile constituents of the stem of S. grande and the leaf of S. sterrophyllum from Vietnam.