Analysis of Gas Chromatography x Gas Chromatography Time-of-Flight Mass Spectrometry of essential oils from Globba patens var. patens

Leaf, stem, and rhizome essential oils of Globba patens var. patens (Zingiberaceae) were obtained by hydro distillation at 0.0021 %, in small quantity, and also small quantity. Their chemical components and each percentage were determined from analysis by using gas chromatography x gas chromatography-time-of-flight mass spectrometry (GC x GC-TOFMS). Terpenes were the oils major contributor with the rhizome gave the lowest amount of 30.56 %. Major compounds in the leaf oil were β-thujene (11.45%, 1), β-selinene (7.82 %, 2), and α-pinene (5.27 %, 3); the stem, β-pinene (2.77 %, 4), myrtenol (2.30 %, 5), and β-elemene/ ledene oxide (2.23 %, 6/ 7); the rhizome, caryophyllene oxide (2.74 %, 8), D-limonene (2.71 %, 9), and 7-(1-methylethylidene)-bicyclo[4.1.0] heptane (1.93 %, 10). (author)