Tangerine oil and preparation method and application thereof

Abstract

The invention relates to a tangerine oil, which is prepared according to the steps as follows: (1) adding tangerine peels and water with the mass ratio of 5:0.9-1.1 into a screw extrusion press, pressing and filtering the pressed liquid with an 80-120 meshed screen to obtain filtrate; (2) adding salt accounting for 5-7% of the mass of the filtrate in the filtrate in step (1), mixing evenly, standing for 20-28h, pouring out the tangerine oil at the upper layer, placing in a refrigerating chamber with the temperature of 5-7 DEG C for 7-9 days, separating the upper layer once again to obtain thetangerine oil crude product; and (3) distilling the tangerine oil under reduced pressure at the temperature of 70-90 DEG C and vacuum degree of 40-60 Pa, purifying to obtain the tangerine oil. The invention has the beneficial effects that the prepared tangerine oil is transparent and colorless, has good anti-inflammatory effect on skin, can be used as a solvent for cosmetics and has improved security on human body.

Description

(1) Technical field

[0001] The invention relates to a citrus essential oil and its preparation method and application, in particular to the citrus essential oil with better anti-inflammatory effect prepared from citrus peels and its preparation method. (2) Background technology

[0002] Citrus essential oil is a pure natural product with high safety and large output, which contains more terpenes. At present, citrus essential oil, as a kind of food spice, is widely used in beverage, jelly and other food processing. Its production method is obtained by directly pressing citrus peels as raw materials. In order to improve the yield, lime water is often used to treat citrus peels to increase the oil yield of citrus peels during pressing, which is called lime water immersion pressing. However, due to this method, the oil cell is immersed in alkaline lime water, saponification reaction occurs, and at the same time, citrus peel is prone to browning reaction under alkaline conditio...