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A kind of citrus peel essential oil and its preparation method and application

A technology for citrus and peel, which is applied to the field of citrus peel essential oil and its preparation, can solve the problems of unsatisfactory essential oil extraction technology, inconvenience in large-scale production, small scale and the like, and achieves low cost, low equipment requirements, and essential oil extraction rate. improved effect

Active Publication Date: 2022-07-05
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, this method is generally small in scale and is not convenient for industrialized large-scale production.
In addition, high cost and high equipment requirements are also the main factors restricting its development
[0007] It can be seen that today's essential oil extraction technology is still not ideal, and there are still many places that need to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Choose 300g of fresh citrus peel, remove the white sponge in the peel, and chop it for later use. The chopped peel is put into a screw press for natural cold pressing, and the obtained oil slurry is centrifuged for 10 minutes at a rotational speed of 6500 r / min, and the upper crude essential oil and the remaining sludge are separated and collected.

[0060] Under the condition of 50Pa, 80 DEG C, the crude essential oil is distilled under reduced pressure for 30min, and the upper layer is colorless and transparent refined essential oil 1 is collected after condensing and refluxing; the residual sludge after centrifugation is taken, and 0.2% (complex enzyme quality accounts for the percentage of the sludge volume) ) complex enzyme 1 (consisting of cellulase, pectinase and hemicellulase in a mass ratio of 1:1:0.5), adjust the pH to 5.0 with a sodium bicarbonate solution with a concentration of 0.2mol / L, at 400W, 55 Ultrasonic enzymatic hydrolysis was carried out for 1.5 h ...

Embodiment 2

[0063] Select 300 g of fresh citrus peel, remove the white sponge in the peel, and chop it for later use; put the chopped peel into a screw press for natural cold pressing, and the obtained oil slurry is centrifuged at a speed of 6500 r / min for 10 minutes, and the upper crude oil is separated. and remaining sludge.

[0064] The crude essential oil was distilled under reduced pressure for 30min under the conditions of 50Pa and 90°C, and after condensation reflux, the upper layer colorless and transparent refined essential oil 5 was collected and collected; percentage) composite enzyme 1 (consisting of cellulase, pectinase and hemicellulase in a mass ratio of 1:1:0.5), adjust the pH to 5.0 with sodium bicarbonate solution with a concentration of 0.2mol / L, at 500W, Ultrasonic enzymolysis at 50°C for 2.5h to obtain enzymolysate 4; then add 0.3% (compound enzyme mass to the percentage of slag sludge volume) compound enzyme 2 (consisting of α-neutral amylase and neutral) according t...

Embodiment 3

[0067] Select 300 g of fresh citrus peel, remove the white sponge in the peel, and chop it for later use; put the chopped peel into a screw press for natural cold pressing, and the obtained oil slurry is centrifuged at a speed of 8000 r / min for 10 minutes to separate the upper crude oil and remaining sludge.

[0068] Under the condition of 50Pa, 75 ℃, the crude product essential oil is distilled under reduced pressure for 30min, and the upper layer is colorless and transparent refined essential oil 13 is collected after the condensation reflux; The residual sludge after the centrifugation is taken, and 0.3% (complex enzyme quality accounts for the percentage of the sludge volume) ) Compound enzyme 1 (consisting of cellulase, pectinase and hemicellulase in a mass ratio of 1:1:0.5), adjust pH to 4.0 with 0.2mol / L citric acid solution, under the conditions of 600W, 60°C Ultrasonic enzymolysis was carried out for 2h to obtain enzymolyzed product 10; then 0.3% (the percentage of co...

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PUM

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Abstract

The invention discloses a citrus peel essential oil and a preparation method and application thereof. The invention extracts and prepares the essential oil of citrus peel by combining pressing-ultrasonic enzymolysis-decompression distillation process, and the extraction rate of the essential oil is significantly improved. Compared with the existing citrus peel essential oil extraction method, the method proposed in the present invention is simple to operate, does not use organic solvents in the extraction process, is green and safe, and preserves the characteristic aroma components of the refined essential oil while improving the extraction rate of essential oils. Low requirements for equipment and low cost. The citrus peel essential oil obtained by the aforementioned preparation method is widely used and can be used for preparing daily chemical products.

Description

technical field [0001] The invention belongs to the field of essential oil extraction, in particular to a citrus peel essential oil and a preparation method and application thereof. Background technique [0002] Citrus fruits include tangerines, oranges, tangerines, and grapefruits. Citrus is the fruit with the highest annual yield in the world and is widely planted in China, the United States, Mexico, Japan, South Africa and other places. Because citrus is rich in vitamin C, flavonoids and other components, it has high nutritional value and health care effects, and it is often processed into canned citrus, citrus juice drinks, citrus fruit wine, citrus sauce and other products. However, a large number of by-products are often produced in the deep processing of citrus, among which citrus peel is the most important. A large number of citrus peels are discarded as waste, which not only causes huge environmental pollution, but also a serious waste of resources. The study fou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B9/02C11B1/04C11B1/06C11B3/00C11B3/12C11B3/16
CPCC11B9/02C11B9/022C11B9/027C11B1/04C11B3/001C11B3/003C11B1/06C11B3/12C11B3/16Y02W30/74
Inventor 吴振强沈飞
Owner SOUTH CHINA UNIV OF TECH