A method for extracting bergamot essential oil by continuous phase change at low temperature and bergamot essential oil

Abstract

The invention discloses a method for extracting bergamot fruit essential oil through continuous phase transition at a low temperature. The method comprises the following steps: crushing bergamot fruits until the granularity is 10-30 meshes, drying the granular bergamot fruits until the moisture content is smaller than or equal to 13%, and using the obtained bergamot fruit powder as a raw material to extract the bergamot fruit essential oil through continuous phase transition at the low temperature, wherein the technology conditions include that the extraction temperature is 50-65 DEG C; the extraction pressure is 0.4-0.7MPa; the resolving temperature of a resolving pot is 55 DEG C and the pressure is 0.25MPa; the whole extraction time is 45-90 minutes; and the bulk density of the raw material of the bergamot fruit powder directly put in the extraction pot is 0.3-0.5 kg / L. The method disclosed by the invention summarizes technology conditions for extraction of the bergamot fruits through the continuous phase transition at the low temperature; in the whole extraction process, a high temperature does not exist so that active substances are not damaged, and hazardous substances such as polymers cannot be generated; the operation is convenient and safe; the method is environmental-friendly; and the method is quite suitable for continuous large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of extraction and separation, in particular to a method for extracting bergamot essential oil through continuous phase change at low temperature. Background technique [0002] The volatile essential oil content in bergamot is 16.0mL / kg, and its taste is delicate and elegant. It is an important high-grade spice plant and has been widely used in food and cosmetics abroad. The existing research results show that the main components of bergamot volatile essential oil are terpenes, sesquiterpenes, higher alcohols, aldehydes, ketones, esters and other physiologically active substances, which have high medicinal value. It has the effects of expectorant, cough, asthma, anti-anxiety, antibacterial and anti-inflammatory, and free radical removal. Bergamot essential oil contains various components such as limonene, γ-terpinene, α- and β-pinene, linalool, linalyl acetate, etc. These components make bergamot have variou...

AI Technical Summary

Problems solved by technology

The low-temperature continuous phase change extraction process conditions summarized in existing studies are usually related to the key factors such as the particle size of raw materials, extraction temperature, pressure and time, but not only that, the process conditions are also closely related to the types of raw materials, for different There is no regularity that can be referred to between the technical solutions, and the fine adjustment of key factors will have a huge impact on the final effect of the low-temperature continuous phase-change extraction. Using low-temperature continuous phase-change extraction of bergamot The study of aroma components such as volatile oil has not been reported

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