Abstract
Conventionally Patchouli Herbage (Pogostemon cablin) is shade dried for extraction of aromatic oil. However, improper drying results in poor yield and quality of the oil. A study was undertaken to find the effect of drying on the yield of volatile oil of Patchouli. Patchouli herbage was dried under forced flow system of drying in a mechanical drier at 40°C for 5 hours & 45°C for 4 hours and also shade dried for 45 hours. The essential oil was obtained by steam distillation from each treatment. Statistical analysis showed significant differences in the essential oil content of leaves dried by different drying methods. The volatile oil content of sample dried at 40°C was found to be 2.46%. In the case of 45°C drying air temperature, the oil content was 2.60%. The volatile oil content of shade-dried sample was 2.40%.
Highlights
Pogostemon cablin is an aromatic crop, belonging to the family Lamiaceae and is commonly known as Patchouli
It is native to subtropical Himalayas, Southeast Asia and the Far East, and has been cultivated extensively in Indonesia, Malaysia, China, and Brazil for the essential oil namely “Patchouli Oil”
There is no synthetic substitute for patchouli oil and it has a great demand in perfumery industries
Summary
Pogostemon cablin is an aromatic crop, belonging to the family Lamiaceae and is commonly known as Patchouli. It is native to subtropical Himalayas, Southeast Asia and the Far East, and has been cultivated extensively in Indonesia, Malaysia, China, and Brazil for the essential oil namely “Patchouli Oil”. The commercial oil of patchouli is obtained by steam distillation of the shade dried leaves. The essential oil is used in food and perfumery industry [1]. There is no synthetic substitute for patchouli oil and it has a great demand in perfumery industries. In Chinese medicine, decoction from the leaves is used with other drugs to treat nausea, vomiting, diarrhea, cold and head ache [2]. It has therapeutic properties, namely antidepressant, anti–inflammatory, antiseptic, aphrodisiac, astringent, carminative, diuretic, febrifuge, fungicide, insecticide, sedative and tonic
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