Abstract
Essential oils of natural origin are excellent raw materials for the food industry as well as the pharmaceutical and cosmetic industries. In this study, a new equipment, designed at small scale, which facilitates the yield of essential oils from various plant sources via hydrodistillation using the classical Clevenger apparatus is presented. The working of this equipment consists in oils distillation from raw plant material with steam, recirculating the water and collecting the volatile oil yield. The proposed designed equipment ensures high yield while keeping energy consumption to a minimum using proper thermal insulation. The yielded product is within the quality parameters for natural products imposed by regulators.
Highlights
Essential oils of natural origin are excellent raw materials for the food industry as well as the pharmaceutical and cosmetic industries
The usage of steam distillation is based on the fact that all components of an essential oil achieve high volatility at temperatures below their boiling point, causing them to be entrained by the steam
A small scale equipment purposed for the extraction of essential oils via steam distillation inspired by the Clevenger apparatus was designed and built at the Natural Ingredients R&D Ltd facility [7-10]
Summary
Essential oils of natural origin are excellent raw materials for the food industry as well as the pharmaceutical and cosmetic industries. The entrainment of essential oils is a complex process. The steam condenses, resulting an organic phase (containing the essential oil) and an aqueous phase.
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