CN105062669A - Rapeseed oil refining method - Google Patents
Rapeseed oil refining method Download PDFInfo
- Publication number
- CN105062669A CN105062669A CN201510513305.7A CN201510513305A CN105062669A CN 105062669 A CN105062669 A CN 105062669A CN 201510513305 A CN201510513305 A CN 201510513305A CN 105062669 A CN105062669 A CN 105062669A
- Authority
- CN
- China
- Prior art keywords
- oil
- quality
- thick
- water
- rapeseed oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Abstract
The invention discloses a rapeseed oil refining method. Refined rapeseed oil is obtained by using ethyl alcohol and oxalic acid to degum crude oil subjected to squeezing and residue removal and performing alkali washing, water washing and drying, and the refined rapeseed oil obtained by means of the method is low in phospholipid and erucic acid content and good in quality.
Description
Technical field
The present invention relates to fundamentals field.
Background technology
Rapeseed oil squeezes by the seed of rape the liquid obtained, and removing after the undesirable substance such as phosphatide, erucic acid through refining further becomes edible oil, and its cholesterol level is lower, warm in nature, easily absorbs, and is one of main edible oil of China, suitable for all ages.
The producing process of current rapeseed oil generally includes removal of impurities, fries the processes such as seed, squeezing, refining.
Summary of the invention
The object of the present invention is to provide a kind of phosphatide and content of erucic acid is low, the rapeseed oil processing method of quality of finished product good.The present invention is achieved through the following technical solutions above-mentioned purpose:
A method of refining for rapeseed oil, comprises the following steps:
1) come unstuck
60 ~ 70 DEG C are warming up to by through the crude oil removed after waste residue, thereafter ethanolic soln stirring 20 ~ 30min that content is 50% ~ 70% is added, the add-on of ethanolic soln is 3% ~ 10% of quality of crude oil, thereafter crude oil is warming up to 70 ~ 80 DEG C, add oxalic acid solution stirring 20 ~ 30min that content is 10% ~ 20%, the caustic soda soln adding 12 ~ 18 degree Beaume at same temperature again stirs 30 ~ 40min, the stir speed (S.S.) of above-mentioned stirring is 60 ~ 80rpm, the add-on of oxalic acid solution is 10% ~ 15% of quality of crude oil, the add-on of caustic soda soln is for being adjusted to the amount needed for neutrality completely by the crude oil pH value after acidifying, thick oil is obtained after leaving standstill,
2) wash
The temperature maintaining described thick oil is 70 ~ 80 DEG C, adding temperature is wherein that the salt solution of 80 ~ 90 DEG C carries out agitator treating 1 time, the mass concentration of described salt solution is 20% ~ 30%, the quality added is 5% ~ 10% of described thick oil quality, thereafter adding temperature is again that the distilled water of 80 ~ 90 DEG C carries out agitator treating 1 time, repeat to add water 1 ~ 2 time, first amount of water and later each amount of water are 15% ~ 20% of thick oil quality, the speed of the stirring described in this step is all 20 ~ 30rpm, after completing said process, thick oily standing separation is gone out the settling of bottom;
3) dehydrate
Thick oil after water-washing step is added in vacuum drier and carries out drying, namely obtain finished product rapeseed oil to thick Water in oil amount < 0.2%.
Before the enforcement of above-mentioned method of refining, the refining of rapeseed oil also need to carry out vegetable seed removal of impurities, fry the process that seed, squeezing/leachings and crude oil remove the gred, these steps all can be carried out according to a conventional method in the present invention.
The preferred embodiment of above-mentioned method of refining is: in step 1), the mass concentration of ethanolic soln used is 60%.
Its another preferred embodiment for: the mass concentration of oxalic acid solution described in described step 1) is 15%.
Its another preferred embodiment for: the concentration of caustic soda soln described in described step 1) is 16 degree Beaume.
Beneficial effect of the present invention is:
1) in the rapeseed oil obtained through the present invention, phospholipids content processes more than 50% of the rapeseed oil obtained lower than ordinary method;
2) in the rapeseed oil obtained through the present invention, the content of erucic acid processes more than 60% of the rapeseed oil obtained lower than ordinary method;
3) crude oil adopting the method for squeezing to obtain can reach first-grade edible oil standard via the rapeseed oil obtained after refining of the present invention.
Embodiment
Embodiment 1
Obtain crude oil by after vegetable seed removal of impurities according to a conventional method, stir-fry seed, squeezing and slagging-off, carry out refining according to the following steps thereafter:
1) come unstuck
60 DEG C are warming up to by through the crude oil removed after waste residue, thereafter the ethanolic soln stirring 20min that content is 50% is added, ethanolic soln add 3% of quality quality of crude oil, thereafter crude oil is warming up to 70 DEG C, add the oxalic acid solution stirring 20min that content is 10%, the caustic soda soln adding 12 degree Beaume at same temperature again stirs 30min, the stir speed (S.S.) of above-mentioned stirring is 60rpm, the add-on of oxalic acid solution is 10% of the quality of crude oil, the add-on of caustic soda soln, for the crude oil pH value after acidifying being adjusted to completely the amount needed for neutrality, obtains thick oil after leaving standstill;
2) wash
The temperature maintaining described thick oil is 70 DEG C, adding temperature is wherein that the salt solution of 80 DEG C carries out agitator treating 1 time, the mass concentration of described salt solution is 20%%, the quality added is 5% of described thick oil quality, thereafter adding temperature is again that the distilled water of 80 DEG C carries out agitator treating 1 time, repeat to add water 1 time, first amount of water and later each amount of water are 15% of thick oil quality, the speed of the stirring described in this step is all 20rpm, after completing said process, thick oily standing separation is gone out the settling of bottom;
3) dehydrate
Thick oil after water-washing step is added in vacuum drier and carries out drying, namely obtain finished product rapeseed oil to thick Water in oil amount < 0.2%;
In gained rapeseed oil, phospholipids content processes 50% of the rapeseed oil obtained lower than conventional refinery process, and the content of its erucic acid processes 60% of the rapeseed oil obtained lower than ordinary method, can reach first-grade edible oil standard.
Embodiment 2
Obtain crude oil by after vegetable seed removal of impurities according to a conventional method, stir-fry seed, squeezing and slagging-off, carry out refining according to the following steps thereafter:
1) come unstuck
70 DEG C are warming up to by through the crude oil removed after waste residue, thereafter the ethanolic soln stirring 30min that content is 60% is added, ethanolic soln add 10% of quality quality of crude oil, thereafter crude oil is warming up to 80 DEG C, add the oxalic acid solution stirring 30min that content is 15%, the caustic soda soln adding 16 degree Beaume at same temperature again stirs 40min, the stir speed (S.S.) of above-mentioned stirring is 80rpm, the add-on of oxalic acid solution is 15% of the quality of crude oil, the add-on of caustic soda soln is for being adjusted to the amount needed for neutrality completely by the crude oil pH value after acidifying, thick oil is obtained after leaving standstill,
2) wash
The temperature maintaining described thick oil is 80 DEG C, adding temperature is wherein that the salt solution of 90 DEG C carries out agitator treating 1 time, the mass concentration of described salt solution is 30%, the quality added is 10% of described thick oil quality, thereafter adding temperature is again that the distilled water of 90 DEG C carries out agitator treating 1 time, repeat to add water 2 times, first amount of water and later each amount of water are 20% of thick oil quality, the speed of the stirring described in this step is all 25rpm, after completing said process, thick oily standing separation is gone out the settling of bottom;
3) dehydrate
Thick oil after water-washing step is added in vacuum drier and carries out drying, namely obtain finished product rapeseed oil to thick Water in oil amount < 0.2%.
In gained rapeseed oil, phospholipids content processes 60% of the rapeseed oil obtained lower than conventional refinery process, and the content of its erucic acid processes 70% of the rapeseed oil obtained lower than ordinary method, can reach first-grade edible oil standard.
Claims (4)
1. a method of refining for rapeseed oil, is characterized in that: will squeeze and crude oil after removing the gred carry out coming unstuck with wash, dry, specifically comprise the following steps:
1) come unstuck
60 ~ 70 DEG C are warming up to by through the crude oil removed after waste residue, thereafter ethanolic soln stirring 20 ~ 30min that content is 50% ~ 70% is added, add that quality is quality of crude oil 3% ~ 10% of ethanolic soln, thereafter crude oil is warming up to 70 ~ 80 DEG C, add oxalic acid solution stirring 20 ~ 30min that content is 10% ~ 20%, the caustic soda soln adding 12 ~ 18 degree Beaume at same temperature again stirs 30 ~ 40min, the stir speed (S.S.) of above-mentioned stirring is 60 ~ 80rpm, the add-on of oxalic acid solution is 10% ~ 15% of quality of crude oil, the add-on of caustic soda soln is for being adjusted to the amount needed for neutrality completely by the crude oil pH value after acidifying, thick oil is obtained after leaving standstill,
2) wash
The temperature maintaining described thick oil is 70 ~ 80 DEG C, adding temperature is wherein that the salt solution of 80 ~ 90 DEG C carries out agitator treating 1 time, the mass concentration of described salt solution is 20% ~ 30%, the quality added is 5% ~ 10% of described thick oil quality, thereafter adding temperature is again that the distilled water of 80 ~ 90 DEG C carries out agitator treating 1 time, repeat to add water 1 ~ 2 time, first amount of water and later each amount of water are 15% ~ 20% of thick oil quality, the speed of the stirring described in this step is all 20 ~ 30rpm, after completing said process, thick oily standing separation is gone out the settling of bottom;
3) dehydrate
Thick oil after water-washing step is added in vacuum drier and carries out drying, namely obtain finished product rapeseed oil to thick Water in oil amount < 0.2%.
2. the method for refining of rapeseed oil according to claim 1, is characterized in that: the mass concentration of ethanolic soln described in described step 1) is 60%.
3. the method for refining of rapeseed oil according to claim 1, is characterized in that: the mass concentration of oxalic acid solution described in described step 1) is 15%.
4. the method for refining of rapeseed oil according to claim 1, is characterized in that: the concentration of caustic soda soln described in described step 1) is 16 degree Beaume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513305.7A CN105062669A (en) | 2015-08-20 | 2015-08-20 | Rapeseed oil refining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510513305.7A CN105062669A (en) | 2015-08-20 | 2015-08-20 | Rapeseed oil refining method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105062669A true CN105062669A (en) | 2015-11-18 |
Family
ID=54492191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510513305.7A Withdrawn CN105062669A (en) | 2015-08-20 | 2015-08-20 | Rapeseed oil refining method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105062669A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735886A (en) * | 2009-12-23 | 2010-06-16 | 湖南金浩茶油股份有限公司 | Novel process for refining oil-tea camellia seed crude oil |
| CN103614237A (en) * | 2013-12-12 | 2014-03-05 | 酉阳县康友粮油有限公司 | Rapeseed crude oil refining process |
| CN103881802A (en) * | 2014-04-09 | 2014-06-25 | 杨凌飘香食用油脂有限公司 | Method for extracting black wheat germ oil |
| CN104804866A (en) * | 2015-04-16 | 2015-07-29 | 贵州省黎平县黔香园油脂有限公司 | Preparation method of rapeseed oil |
-
2015
- 2015-08-20 CN CN201510513305.7A patent/CN105062669A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735886A (en) * | 2009-12-23 | 2010-06-16 | 湖南金浩茶油股份有限公司 | Novel process for refining oil-tea camellia seed crude oil |
| CN103614237A (en) * | 2013-12-12 | 2014-03-05 | 酉阳县康友粮油有限公司 | Rapeseed crude oil refining process |
| CN103881802A (en) * | 2014-04-09 | 2014-06-25 | 杨凌飘香食用油脂有限公司 | Method for extracting black wheat germ oil |
| CN104804866A (en) * | 2015-04-16 | 2015-07-29 | 贵州省黎平县黔香园油脂有限公司 | Preparation method of rapeseed oil |
Non-Patent Citations (1)
| Title |
|---|
| 朱庆英等: "负载型固体碱催化光皮树油制备生物柴油", 《农业机械》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102492546B (en) | Rice bran oil refinement and byproduct production method | |
| CN103740462B (en) | A kind of oils and fats process for purification | |
| DK153228B (en) | PROCEDURE FOR DEGUMING OF TRIGLYCERID OILS | |
| CN105176676A (en) | Edible plant oil non-soap refining method | |
| CN102191128B (en) | Method for preparing edible idesia oil | |
| CN102994224B (en) | Water-free de-soaping and pre-decolorization refining method for grease | |
| CN103351947B (en) | A kind of preparation method of DHA microalgae grease of appropriateness processing | |
| CN104130857A (en) | Preparation method of refined lard | |
| CN104232298A (en) | Oil and fat refining process | |
| CN104498182A (en) | Refining process of acer-truncatum seed oil | |
| CN104263507A (en) | Deacidifying and deodorizing refining process of acer truncatum oil | |
| CN105038969A (en) | Processing method of pressed rapeseed oil | |
| WO2017008335A1 (en) | A process for soap-free refining corn oil | |
| CN106167738B (en) | The rice essential smelting method of high phytosterol | |
| CN102839049A (en) | Technical method of deacidifying vegetable fat | |
| CN108707508A (en) | Corn degumming of oil dewaxing one-step method refinery practice | |
| CN103087821A (en) | Rice bran oil refining method for reserving oryzanol | |
| CN103382413B (en) | Refining process for reducing content of MCPD in tea seed oil | |
| CN107523418A (en) | A kind of refining treatment technology of camellia oil | |
| CN104232300A (en) | Method for refining mixed oil of microalgae DHA oil | |
| CN106632460A (en) | Extraction process of phospholipid in hydrated oil foots of plants | |
| CN107325885A (en) | A kind of preparation method of Canola Oil | |
| CN105062670A (en) | Refining method of grease | |
| CN105062668A (en) | Rapeseed oil washing method | |
| CN105062669A (en) | Rapeseed oil refining method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20151118 |