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Method for extracting essential oil from orange peel

A technology of orange peel and essential oil, which is applied in the direction of essential oil/fragrance, fat production, etc., can solve the problems of high equipment requirements, high production costs, and few applications, and achieve the effect of improving efficiency, low equipment requirements, and reducing costs

Inactive Publication Date: 2019-09-13
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a supercritical fluid extraction method, but due to high equipment requirements and high production costs, it is rarely used in actual production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The first step is to wash the fresh orange peel and mix it with water (the mass ratio of fresh orange peel and water is 1:1) to form a paste;

[0029] In the second step, the paste is mixed with cleaned glass beads (the mass ratio of glass beads or ceramic beads to fresh orange peel is 1:1, and the diameter of glass beads or ceramic beads is 5 mm) and then placed in a distillation distillation with a stirring device. Distill in the still, the temperature of the still is 60°C, the vacuum is -0.1Mpa, and the distillation time is 20min;

[0030] The third step is to cool the effluent in the distillation kettle, and the cooling temperature is 10° C. to obtain the effluent;

[0031] The fourth step is to introduce the cooled effluent into the oil-water separator for oil-water separation, separate the orange peel essential oil, and dry it with anhydrous sodium sulfate. The quality of anhydrous sodium sulfate and fresh orange peel is 1:1 to obtain orange peel essential oils. ...

Embodiment 2

[0034] The first step is to wash the fresh orange peel and mix it with water (the mass ratio of fresh orange peel and water is 1:1) to form a paste;

[0035] The second step is to put the paste and cleaned glass beads (the mass ratio of glass beads or ceramic beads to fresh orange peel is 1:5, and the diameter of glass beads or ceramic beads is 10mm) in a still with a stirring device Carry out distillation, the temperature of the distillation pot is 90°C, the vacuum degree is -0.05Mpa, and the distillation time is 10min;

[0036] The third step is to cool the effluent in the distillation kettle, and the cooling temperature is 30° C. to obtain the effluent;

[0037] The fourth step is to introduce the cooled effluent into the oil-water separator for oil-water separation, separate the orange peel essential oil, and dry it with anhydrous sodium sulfate. The quality of anhydrous sodium sulfate and fresh orange peel is 1:5 to obtain orange peel essential oils.

[0038] After test...

Embodiment 3

[0040] The first step is to wash the fresh orange peel and mix it with water (the mass ratio of fresh orange peel and water is 5:1) to form a paste;

[0041] The second step is to put the paste and cleaned glass beads (the mass ratio of glass beads or ceramic beads to fresh orange peel is 1:10, and the diameter of glass beads or ceramic beads is 50 mm) in a still with a stirring device Carry out distillation, the temperature of the distillation pot is 60°C, the vacuum degree is -0.1Mpa, and the distillation time is 30min;

[0042] The third step is to cool the effluent in the distillation kettle, and the cooling temperature is 60° C. to obtain the effluent;

[0043] The fourth step is to introduce the cooled effluent into the oil-water separator for oil-water separation, separate the orange peel essential oil, and dry it with anhydrous sodium sulfate. The quality of the used anhydrous sodium sulfate and fresh orange peel is 1:20 to obtain orange peel essential oils.

[0044]...

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PUM

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Abstract

The invention discloses a method for extracting essential oil from orange peel. The method comprises the following steps: washing fresh orange peel, mixing the orange peel and water, grinding the mixture into paste, mixing the paste with glass beads, and distilling the mixture in a distillation still with a stirring device; cooling a distilled product in the distillation still so as to obtain distillate; and introducing the cooled distillate into an oil-water separator for performing oil-water separation, separating out orange peel essential oil, and drying the orange peel essential oil with anhydrous sodium sulfate so as to obtain the orange peel essential oil. The orange peel essential oil extracted by the method is high in purity, extraction time is greatly shortened, and the extractionratio of the fresh orange peel essential oil is up to 90% or higher. The method is simple in operation, low in cost and suitable for industrial production.

Description

technical field [0001] The invention relates to a method for extracting essential oil from orange peel, belonging to the field of biomedical engineering. Background technique [0002] Citrus peels are rich in essential oils. Citrus essential oil is colorless and transparent, has an attractive tangerine fragrance, and is widely used in food, medicine, cosmetics and other fields. Citrus belongs to the Rutaceae plant and is the largest fruit in the world. In my country, the citrus planting area is quite extensive, mainly concentrated in Hunan, Zhejiang, Fujian, Guangdong, Jiangxi and other places. It is the third largest agricultural product exported after wheat and corn. At present, my country's citrus production ranks first in the world, accounting for 11.7% of the world's total production. After citrus is produced and processed for canning and juice, a large amount of orange peel is produced. Citrus peel is a by-product of the citrus industry, accounting for 30% to 45% o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B9/02
CPCC11B9/027
Inventor 王传金王恒之杜德琳孙瑶
Owner NANJING UNIV OF SCI & TECH
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