Direct and indirect steam distillation
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Direct Steam Distillation
In case of direct steam distillation, the freshly cut drug is introduced into the distillation flask. The generated steam is made to pass through the drug material as shown in Fig. 5.1, and the volatile oil content along with the steam on being passed through the water condenser is collected in Florentine Flasks of the type FLW or FHW depending on whether the resulting oil is lighter than water or heavier than water.
In case of direct steam distillation, the freshly cut drug is introduced into the distillation flask. The generated steam is made to pass through the drug material as shown in Fig. 5.1, and the volatile oil content along with the steam on being passed through the water condenser is collected in Florentine Flasks of the type FLW or FHW depending on whether the resulting oil is lighter than water or heavier than water.
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