tr tr tr tr tr tr

*a) Lawrence (1983) also reported alkanes Cn to C23 and the following sesquiterpene hydrocarbons: cyclosativene, cyclocopacamphene, sesquithujene, P-ylangene, selina-4,11-diene, selina-3,11-diene, selina-3(7),11-diene, a-amor-phene, zonarene, 10-epizonarene, a-cadinene, and P-curcumene in trace amounts.

b) Vernin and Parkanyi (1994), commercial samples.

d) Bartley and Foley (1994).

**Besides the usual compounds, Nishimura (1995), using the MDGC-MS technique, identified the following compounds in a fresh ginger extract: 2-octanol, 2,6-dimethyl-5-heptenal, 2-nonanone, 2-(3-methyl-2-butenyl)-3-methylfuran, nonanal, 2-pinen-5-ol, cis- and trans-rose oxides, 2-octylacetate, camphene hydrate, isoborneol, 3,7-dimethyloctadienols (3Z, 6Z and 3E, 6E), and (2,3-epoxy-3-methylbutyl)-3-methylfuran + =a-Zingiberene + P-bisabolene. ***tr: traces

Table 3-17 Geographical variations of ginger oil yields from various areas of India



Madhya Pradesh



West Bengal

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