Preparation method of lemon essential oil

Abstract

The invention relates to the field of essential oil preparation, and particularly relates to a preparation method of lemon essential oil, and the prepared lemon essential oil contains no additives, and is high in purity. The preparation method comprises the following steps: extracting lemon fruit oil to obtain an oil-water mixture; performing first centrifugal separation on the obtained oil-water mixture with the centrifugal speed of 8200rpm, the centrifugal time of 2-4 minutes and the centrifugation temperature of 80-100 DEG C to obtain crude oil; performing secondary centrifugal separation on the crude oil with the centrifugal speed of 6800rpm, the centrifugal time of 5-7 minutes and the centrifugation temperature of 80-100 DEG C to obtain the lemon essential oil. Before extracting of the lemon fruit oil, pesticide and heavy metal residue-free lemon fruits are selected, the selected lemon fruits are cleaned with 8-12m<3> / h washing water, the cleaned lemon fruits are screened by use of a sorting machine to obtain lemon fruits with specified sizes, and the screened lemon fruits are free of insects, diseases and rotten fruits.

Description

technical field [0001] The invention relates to the field of preparation of essential oil, in particular to a preparation method of lemon essential oil. Background technique [0002] Lemons are now mainly produced in China, Italy, Greece, Spain, southern European countries and the United States. The United States and Italy are famous producing areas of lemons, while France is the country that consumes the most lemons in the world. China's largest lemon producing area - Anyue County, Ziyang City, Sichuan Province. Known as the "Lemon Capital of China", the output accounts for 80% of the country's total. Lemon fruit is rich in vitamin C, sugar, calcium, phosphorus, iron, vitamin B1, vitamin B2, etc., which are very beneficial to the human body; it also has the functions of preventing and eliminating skin pigmentation, improving vision and dark adaptability, and reducing fatigue. Prevent colds, stimulate hematopoiesis and anti-cancer effects. Lemon fruit is generally not ea...

AI Technical Summary

Problems solved by technology

[0007] The problem is that in the existing preparation method, in the process of separation and purification, it is necessary to add the isolated extract for purification, such as adding an extractant for extraction; because of the purification using chemical methods, there will be Residues of isolated extracts, and traces of chemical reaction residues

When there are too many additives in lemon essential oil, it is not suitable for consumption; when lemon essential oil is used in daily chemical products, it is first necessary to prepare lemon essential oil and other solutions. The amount of lemon essential oil that needs to be used is relatively large, because the added extract and other impurities make the impurity content in the finished product higher, and it is not easy to achieve the desired effect of daily chemical products

Images