CN100494331C - Method for reducing peroxide value of eucommia oil - Google Patents
Method for reducing peroxide value of eucommia oil Download PDFInfo
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- CN100494331C CN100494331C CNB2006101046277A CN200610104627A CN100494331C CN 100494331 C CN100494331 C CN 100494331C CN B2006101046277 A CNB2006101046277 A CN B2006101046277A CN 200610104627 A CN200610104627 A CN 200610104627A CN 100494331 C CN100494331 C CN 100494331C
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Abstract
One method of lowering the peroxide number of eucommia oil is disclosed. Potassium iodide and ascorbic acid solution as double reductant solution is added into eucommia oil, and through further stirring, delaminating to separate out oil phase, water washing and drying, eucommia oil of peroxide number lower than 1 may be obtained. The method adopts potassium iodide and ascorbic acid as reductants without residue in eucommia oil, and has high safety, simple operation, complete elimination of peroxide number, capacity of keeping the special scent of eucommia oil and high practical use value.
Description
Technical field
The present invention relates to a kind of method that reduces peroxide value of eucommia oil.
Background technology
Eucommia Oil is rich in unsaturated fatty acids, and its unsaturated fatty acids reaches more than 90% of lipid acid composition, and only the indispensable fatty acid of human body---alpha-linolenic acid just reaches more than 60%, and therefore, Eucommia Oil is one of the highest vegetable health care oil of alpha-linolenic acid content.Alpha-linolenic acid is a polyunsaturated fatty acid, easy oxidized generation superoxide, and therefore, eucommia bark seed its grease-contained peroxide value in storage process can raise gradually.In the course of processing of Eucommia Oil, must guarantee lower peroxide value, to extend the shelf life and shelf-lives.Therefore, need a kind of quality safety that can guarantee Eucommia Oil of development, can effectively reduce the method for peroxide value again.
Summary of the invention
The object of the present invention is to provide a kind of method that reduces peroxide value of eucommia oil.
The technical solution that realizes above-mentioned purpose is: a kind of method that reduces peroxide value of eucommia oil, it is characterized in that, this method adds in the Eucommia Oil as two reducing solutions with potassiumiodide-ascorbic acid solution, through stirring, layering, tell oil phase, can obtain peroxide value and be lower than 1 Eucommia Oil through washing, drying again.
Specific operation process may further comprise the steps:
A) get Eucommia Oil and insert in the vessel, then with Eucommia Oil: the weight ratio of saturated potassium iodide aqueous solution=10: (1～5) adds saturated potassium iodide aqueous solution as first reductive agent, through stirring 40 minutes～200 minutes, obtains first solution;
(B) in first solution, again by Eucommia Oil: the weight ratio of ascorbic acid solution=10: (2～5) add ascorbic acid solution as second reductive agent, stir 30～200 minutes, obtain second solution;
(C) with second solution standing demix under 40 ℃～80 ℃ conditions, tell oil phase, can obtain peroxide value and be lower than 1 Eucommia Oil through washing, drying.
In the method for the present invention, use potassiumiodide as the purpose of first reductive agent be potassiumiodide easily with Eucommia Oil in peroxide reactions, generate iodine, thus the peroxide value of reduction Eucommia Oil.
In the method for the present invention, using xitix is that iodine with above-mentioned generation is reduced into potassiumiodide soluble in water as the purpose of second reductive agent, makes the Eucommia Oil that has reduced peroxide value be easy to the purifying by water-washing method.
In the method for the present invention, the reductive agent potassiumiodide of use and xitix are not residual in Eucommia Oil, safe, simple to operate, and it is thorough to remove peroxide value, can keep the distinctive fragrance of Eucommia Oil, has tangible practical value.
Embodiment
According to technical scheme of the present invention, add in the Eucommia Oil as two reducing solutions with potassiumiodide-ascorbic acid solution, through stir, layering, tell oil phase, again through wash, drying can obtain peroxide value and be lower than 1 Eucommia Oil.
Below be the embodiment that the contriver provides, need to prove that relevant processing condition and material that embodiment put down in writing further specify purpose of the present invention, are not limited only to these embodiment.
Embodiment 1:
Getting peroxide value and be 6.2 Eucommia Oil 8g inserts in the vessel, with Eucommia Oil: the weight ratio of saturated potassium iodide aqueous solution=Eucommia Oil in add saturated potassium iodide aqueous solution as first reductive agent at 10: 2, after stirring 60 minutes, again by Eucommia Oil: the weight ratio of 4% ascorbic acid solution=add ascorbic acid solution as second reductive agent at 10: 3, stirred 60 ℃ of standing demix 60 minutes, tell oil phase, washing, drying, the Eucommia Oil of peroxide value 0.4.
Embodiment 2:
Getting peroxide value is that 18.6 Eucommia Oil 8g insert in the vessel, with Eucommia Oil: saturated potassium iodide aqueous solution weight ratio=Eucommia Oil in add saturated potassium iodide aqueous solution as first reductive agent at 10: 2, after stirring 60 minutes, again by Eucommia Oil: the weight ratio of 3% ascorbic acid solution=add ascorbic acid solution as second reductive agent at 10: 3, stirred 60 ℃ of standing demix 90 minutes, tell oil phase, washing, drying, the Eucommia Oil of peroxide value 0.6.
Embodiment 3:
Different is for present embodiment and embodiment 1: Eucommia Oil: the weight ratio of saturated potassium iodide aqueous solution=Eucommia Oil in add saturated potassium iodide aqueous solution as first reductive agent at 10: 5; With Eucommia Oil: the weight ratio of ascorbic acid solution=add ascorbic acid solution as second reductive agent at 10: 5; All the other are with embodiment 1.
Embodiment 4:
Different is for present embodiment and embodiment 3: the concentration of ascorbic acid solution is 20%, and all the other are with embodiment 3.
Embodiment 5:
Different is for present embodiment and embodiment 3: the concentration of ascorbic acid solution is 10%, and all the other are with embodiment 3.
Embodiment 6:
Different is for present embodiment and embodiment 3: the concentration of ascorbic acid solution is 1%, and all the other are with embodiment 3.
Embodiment 7:
Different is for present embodiment and embodiment 2: the churning time that Eucommia Oil adds first reductive agent and second reductive agent is 180 minutes, and all the other are with embodiment 2.
Embodiment 8:
Different is for present embodiment and embodiment 7: the churning time that Eucommia Oil adds first reductive agent and second reductive agent is 120 minutes, and all the other are with embodiment 2.
Embodiment 9:
Different is for present embodiment and embodiment 7: the churning time that Eucommia Oil adds first reductive agent and second reductive agent is 40 minutes, and all the other are with embodiment 7.
Embodiment 10:
Different is for present embodiment and embodiment 7: the churning time that Eucommia Oil adds first reductive agent is 30 minutes, and the churning time that Eucommia Oil adds second reductive agent is 40 minutes, and all the other are with embodiment 7.
Embodiment 11:
Different is for present embodiment and embodiment 3: the temperature of standing demix is 80 ℃, and all the other are with embodiment 3.
Embodiment 12:
Different is for present embodiment and embodiment 3: the temperature of standing demix is 40 ℃, and all the other are with embodiment 3.
The all right exclusive list of the foregoing description as space is limited, no longer provides, and in a word, as long as in the scope of technical solution of the present invention, can both reach purpose of the present invention.
Claims (2)
1, a kind of method that reduces peroxide value of eucommia oil is characterized in that, specifically may further comprise the steps:
(A) get Eucommia Oil and insert in the vessel, then with Eucommia Oil; Weight ratio=the 10:1 of saturated potassium iodide aqueous solution～5 add saturated potassium iodide aqueous solution as first reductive agent, through stirring 40～200 minutes, obtain first solution;
(B) in first solution, again by Eucommia Oil: the weight ratio=10:2 of ascorbic acid solution～5 add ascorbic acid solution as second reductive agent, stir 30～200 minutes, obtain second solution;
(C) with second solution standing demix under 40 ℃～80 ℃ conditions, tell oil phase, can obtain peroxide value and be lower than 1 Eucommia Oil through washing, drying.
2, the method for reduction peroxide value of eucommia oil as claimed in claim 1 is characterized in that, the concentration of described ascorbic acid solution is 1～20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101046277A CN100494331C (en) | 2006-09-22 | 2006-09-22 | Method for reducing peroxide value of eucommia oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101046277A CN100494331C (en) | 2006-09-22 | 2006-09-22 | Method for reducing peroxide value of eucommia oil |
Publications (2)
| Publication Number | Publication Date |
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| CN1928041A CN1928041A (en) | 2007-03-14 |
| CN100494331C true CN100494331C (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101046277A Expired - Fee Related CN100494331C (en) | 2006-09-22 | 2006-09-22 | Method for reducing peroxide value of eucommia oil |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107746747A (en) * | 2017-11-08 | 2018-03-02 | 厦门汇盛生物有限公司 | It is a kind of to reduce pufa oils peroxide value and the method for anisidine value |
| US20210395638A1 (en) * | 2018-11-02 | 2021-12-23 | Firmenich Sa | Prevention of the oxidation of perfumery raw materials and food raw materials |
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Granted publication date: 20090603 Termination date: 20100922 |