Essential Oil Composition of Ginger (Zingiber officinale Roscoe) Rhizomes from Different Place in India

Abstract The hydro-distilled essential oil of ginger (Zingiber Officinale Roscoe) rhizomes of commerce from three different geograhical locations in India, viz. Mizoram, Chennai and two varieties from Sikkim were analyzed by GC and GC-MS. In all the four oils, zingiberene (10.5% - 16.6%) was the major constituents and although the composition of all the oils was by and large similar, quantitative differences in the concentration of the constituents were observed. The GC and GC-MS analysis of Mizoram, Chennai and Sikkim (Majhauley and Bhainsey varieties) ginger rhizome oils resulted in the identification and quantitation of 29, 29, 28 and 28 constituents representing 84.3%, 86.6%, 88.8% and 86.8% of the total oils, respectively. Among the four oils analysed the Majhauley variety had an edge over the rest of three oils due to the higher content of zingiberene (16.6%) followed by e-citral (12.0%), z-citral (8.8%), camphene (7.6%) and ocimene (6.5%).