Changes in the Essential Oil Content and Composition of Lippia citriodora under Vacuum Oven-drying and Pre-drying Operation
| Autor: | Seyed Ebrahim Hosseini, Vahid Abdossi, Reza Hajiaghaee, Ali Rezvani Aghdam, Hassanali Naghdi Badi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Phytochemistry
RM1-950 Pharmacognosy essential oil geranial law.invention Vacuum furnace law RA1190-1270 chlorophyll Food science drying Medicinal plants Essential oil Pharmacology Lippia biology Chemistry lippia citriodora technology industry and agriculture biology.organism_classification Complementary and alternative medicine neral Toxicology. Poisons Pharmaceutics Composition (visual arts) Therapeutics. Pharmacology |
| Zdroj: | Journal of Medicinal Plants, Vol 18, Iss 72, Pp 110-120 (2019) |
| ISSN: | 2717-2058 |
| Popis: | Background: Pre-drying operations and drying methods have a significant effect on the quantity and quality of plants essential oils. Objective: In this study, the effect of pre-drying operation and vacuum oven-drying was investigated on the essential oil content and composition of Lippia citriodora. Method: This research was conducted as a factorial experiment in a completely randomized design (CRD) with three replications. The two studied factors were (1) pre-drying operations in two levels including pre-drying and without pre-drying operation, and also (2) drying methods in 5 levels including fresh plant, shade drying and vacuum oven-drying at 35, 45 and 55°C at 0.5 bar atmospheric pressure. In this study, the amount of pigments and essential oil content and composition were measured. Results: The results indicated that the highest chlorophyll content was related to treatment of vacuum oven-drying at 55 °C with a pre-drying treatment, while the highest amount of essential oil was obtained by vacuum oven-drying at 45 °C without a pre-drying operation. The highest amounts of monoterpene hydrocarbons, oxygenated monoterpenes, and geranial were obtained by drying at 55 °C, while the highest content of sesquiterpene hydrocarbons, oxygenated sesquiterpenes and neral were observed in Low-temperature drying. Conclusion: In general, this study indicated that vacuum oven-drying at 45 °C was the best drying method for obtaining maximum content of essential oil and active components. |
| Databáze: | OpenAIRE |
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