Variation in essential oil composition of rose-scented geranium (Pelargonium sp.) distilled by different distillation techniques

The rose-scented geranium (Pelargonium sp.) cultivar ‘Kelkar’, grown in the agroclimatic conditions of the western Himalayas, was processed by various hydrodistillation methods, which revealed that water distillation of the herb gave a higher oil yield (0.16–0.22%) than the water–steam distillation (0.09–0.12%) and steam distillation methods (0.06–0.18%). The samples were analysed by GC and GC–MS to study and compare the essential oil...