Coldpress Extraction Of Essential Oils

Heated Rolers Press For Oil Extraction

Rodano (1930) identified three distinct types of phenomena that occur during the cold-press extraction of essential oils from citrus fruit 1 rupture of the epidermis and of the oil glands that contain the oil 2 creation in the peel, of compressed areas, surrounded by areas which are under less pressure, through which the oil can be expressed 3 abrasion of the peel, producing small pieces of debris. Essential oil can be extracted either from the whole fruit or from the peel. When the whole fruit...

Methods Of Separation

The recovery of essential oil from the emulsion obtained during the extraction phase is a crucial step in the processing cycle. When the extraction is performed manually, either by the sponge process or the ecuelle method, water is not used and the tissues of the peel are only subjected to superficial grazing. In this case the liquid extracted separates rapidly after standing, into three layers the upper layer is practically pure essential oil which merely needs to be filtered through paper the...