Comparison of chemical composition of aerva javanica seed essential oils obtained by different extraction methods

ABSTRACT

Aerva javanica [Burm.f.] Juss. ex Schult. seed essential oils were obtained by hydrodistillation [HD] and dry steam distillation [SD] extracting methods and analyzed by using gas chromatography-mass spectrometry[GC-MS]. Twenty and eighteen components representing 90.5% and 95.6% of the seed essential oil were identified, using hydrodistillation and dry steam distillation, respectively. The major constituent identified from seed essential oil obtained by HD were heptacosane [25.4%], 3-allyl-6-methoxyphenol [14.1%], pentacosane [12.1%], 6,10,14-trimethyl-2-pentadecanone [7.9%], nonacosane [7.1%], tricosane [3.6%], alpha-farnesene [3.5%], dodecanal [2.7%] and octacosane [2.1%]. Whereas the major constituent identified from seed essential oil obtained by SD were heptacosane [41.4%], pentacosane [21.2%], nonacosane [14.8%], tricosane [6.3%], octacosane [4.2%] and tetracosane [3.0%]