Extraction Technologies for Medicinal and Aromatic ... - Capacity4Dev

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1 AN OVERVIEW OF EXTRACTION TECHNIQUES FOR MEDICINAL AND AROMATIC PLANTS methods. In such instances, an odorless, bland, fixed oil or fat is spread in a thin layer on glass plates. The flower petals are placed on the fat for a few hours; then repeatedly, the oil petals are removed, and a new layer of petals is introduced. After the fat has absorbed as much fragrance as possible, the oil may be removed by extraction with alcohol. This process, known as enfleurage, was formerly used extensively in the production of perfumes and pomades. Figure 3: Plant organs containing essential oils Figure 4: Family-specifi c plant tissues responsible for producing or storing essential oil 38
EXTRACTION TECHNOLOGIES FOR MEDICINAL AND AROMATIC PLANTS Figure 5: Heterogeneous chemical groups present in essential oil Figure 6: Methods of producing essential oils from plant materials In the perfume industry, most modern essential oil production is accomplished by extraction, using volatile solvents such as petroleum ether and hexane. The chief advantages of extraction over distillation is that uniform 39
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7 DISTILLATION TECHNOLOGY FOR ESSEN
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9 SOLID PHASE MICRO-EXTRACTION AND
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Extraction Technologies for Medicinal and Aromatic ... - Capacity4Dev

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