Anethi Oil

The yield of the oil, obtained by distillation with water, is from 2.5 per cent (East Indian) to 4 per cent (Russian) (Schimmel & Co.). The residual herb is rich in nitrogenous and fatty matter, and in dried form is used as feed for cattle. The oil is pale yellow, having a sweetish, sharp, burning taste, and a penetrating odor resembling that of the fruit. It gradually becomes darker in color. The odor of East Indian dill oil differs markedly from that of the German product. The density is 0.905 to 0.915 (as high as 0.970 for East Indian) (Schimmel & Co.). Optical rotation, +70° to +80°; East Indian, +41° 30'.