CN108048223A - A kind of production method of little rice bran edible oil - Google Patents
A kind of production method of little rice bran edible oil Download PDFInfo
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- CN108048223A CN108048223A CN201711441579.5A CN201711441579A CN108048223A CN 108048223 A CN108048223 A CN 108048223A CN 201711441579 A CN201711441579 A CN 201711441579A CN 108048223 A CN108048223 A CN 108048223A
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- China
- Prior art keywords
- rice bran
- hexane
- little rice
- production method
- edible oil
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Classifications
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/005—Splitting up mixtures of fatty acids into their constituents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C1/00—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids
- C11C1/007—Preparation of fatty acids from fats, fatty oils, or waxes; Refining the fatty acids using organic solvents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11C—FATTY ACIDS FROM FATS, OILS OR WAXES; CANDLES; FATS, OILS OR FATTY ACIDS BY CHEMICAL MODIFICATION OF FATS, OILS, OR FATTY ACIDS OBTAINED THEREFROM
- C11C3/00—Fats, oils, or fatty acids by chemical modification of fats, oils, or fatty acids obtained therefrom
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- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fats And Perfumes (AREA)
Abstract
The present invention relates to a kind of production methods of little rice bran edible oil; it is characterized in that using linoleic acid as reactant; alkali is catalyst; glycerine is solvent; under heating and nitrogen protective condition; it is conjugated linoleic acid by linoleic acid, the content of effectively abundant oily conjugated linoleic acid enhances healthy nutritive value.Using urea adduct method separation and purifying polyunsaturated fatty acid, the inclusion compound that saturated fatty acid and monounsaturated fatty acids are formed with urea is removed by filtration, can obtain polyunsaturated fatty acid, retain its bioactivity to greatest extent.So as to improve the utilization rate of little rice bran nutriment, promote the deep processing of millet oil extracted from rice husks, enhance consumption.
Description
Technical field
The present invention relates to little rice bran manufacture fields, relate generally to a kind of production method of little rice bran edible oil.
Background technology
Technology
Little rice bran is the by-product of millet process, is made of the pericarp layer, aleurone and rice plumule of brown rice, accounts for millet weight
The 5-7% of amount.Big producer of the China as little rice bran, Shanxi Province are known as the laudatory title of " small coarse cereals kingdom ", can all produce every year again
Substantial amounts of little rice bran is obtained, but these little rice brans are not all utilized effectively.Progressively start using biology external
Engineering technology application is in the utilization of rice bran, and the comprehensive utilization in China's little rice bran is still in the starting stage at present, is only few portion
It is allocated as the raw material for livestock feed.Sun Ruizhen exists《The extraction of little rice bran Linoleic acid and deep processing and utilization》Using little rice bran as original
Material extracts millet oil extracted from rice husks, and chemical method is recycled to isolate and purify linoleic acid and synthesis of conjugated linoleic acid from millet oil extracted from rice husks, is
The deep processing of little rice bran comprehensive development and utilization and millet oil extracted from rice husks provides theoretical foundation, to realize agricultural resource rationally using optimal
Change, certain contribution is done in rural economy maximizing the benefits.
The content of the invention
The present invention promotes the deep processing of millet oil extracted from rice husks, isolates and purifies Asia to improve the utilization rate of little rice bran nutriment
Oleic acid enhances consumption by nutrition deployment, provides a kind of production method of little rice bran edible oil.
A kind of production method of little rice bran edible oil, it is characterised in that it is made of following step：
1）, little rice bran is distributed into filter bag, according to 1:The material ratio of 22-25 (g/mL) adds in n-hexane as Extraction solvent, water-bath
When refluxing extraction 5-6 is small；
2）Distilled is carried out to step 1 extracting solution, n-hexane solvent is recycled, obtains millet oil extracted from rice husks；
3）, step 1 gained millet oil extracted from rice husks and sodium hydroxide ethanol solution pressed into l:The ratio mixing of 20-22 (g/mL), in magnetic force
70-72 DEG C is to slowly warm up under stirring, when constant temperature reflux 2-2.5 is small, is subsequently cooled to room temperature, adding in distilled water makes it completely molten
Solution,
4）By the HC1 solution of 0.5-1mol/L by step 3) solution tune pH to 2-3, the 8-10 times of n-hexane extraction measured is added in,
Then oil reservoir is left and taken in layering, then is washed to neutrality with distillation, and anhydrous sodium sulfate drying recycles n-hexane, obtains fatty acid mixed；
5）, by step 4 gained fatty acid mixed, urea and absolute ethyl alcohol press l:5:150-160 (g/g/mL) ratio mixes, water-bath
Be heated to reflux being completely dissolved urea, cool down and preservation 24-30 it is small when, take out decompression filter, after filtrate boils off ethyl alcohol, use 3-5
Amount n-hexane extraction again, is washed to no urea, is dried with anhydrous sodium sulfate, recycles n-hexane, obtains linoleic acid；
6）, by potassium hydroxide and glycerine with 1:13-15（g/mL）Dissolving is stirred in 80-85 DEG C, stirs and adds after logical nitrogen
Enter volume fraction 20-25% step 5 gained linoleic acid, when heating reaction 3.5-5 is small rapidly, after reaction under nitrogen protection
Continue to stir, be cooled to room temperature, add in the salt acid for adjusting pH of 0.5-1mol/L to 3-3.5, add in 3-5 Bei Liangzhengji institutes liquid separation extraction
It takes 2-3 times, merges n-hexane phase, and neutrality is washed to distillation, dried with anhydrous sodium sulfate, recycle n-hexane, filling and sealing
It preserves.
The production method of a kind of little rice bran edible oil, it is characterised in that step 1 water bath reflux temperature is 60-65
℃。
A kind of production method of the little rice bran edible oil, it is characterised in that step 3 sodium hydroxide ethanol solution it is dense
It spends for 5-6%.
The production method of a kind of little rice bran edible oil, it is characterised in that step 5 preserving process is：In 4-6 DEG C of guarantor
When Tibetan 24-30 is small.
The production method of a kind of little rice bran edible oil, it is characterised in that step 6 is heated rapidly to 190-200 DEG C.
It is an advantage of the invention that：
A kind of production method of little rice bran edible oil of the present invention contains abundant protein, fat, polysaccharide, dimension in little rice bran
The active material of the physiological functions brilliances such as nutrients and vitamin E such as raw element, minerals, these ingredients have prevention of cardiovascular disease
Disease adjusts the multiple functions such as blood glucose, weight-reducing, pre- preventing tumor, antifatigue, beauty.And the fatty predominantly insatiable hunger of little rice bran institute
And aliphatic acid, it is mostly oleic acid, linoleic acid.Using linoleic acid as reactant, alkali is catalyst, and glycerine is solvent, heating and
It is conjugated linoleic acid by linoleic acid under nitrogen protective condition, the content of effectively abundant oily conjugated linoleic acid enhances nutrition
Health value.It is urea molecule in crystallization process using urea adduct method separation and purifying polyunsaturated fatty acid, principle
Relatively stable crystal inclusion compound can be formed with saturated fatty acid and monounsaturated fatty acids to be precipitated, and polyunsaturated fatty acid by
It is more in double bond, carbochain bending, have certain space configuration, be not easy by urea clathrate, be removed by filtration saturated fatty acid and
The inclusion compound that monounsaturated fatty acids is formed with urea, can obtain polyunsaturated fatty acid, gained polyunsaturated fatty acid purity
It is higher.In addition, urea adduct method fractionation of fatty acid is to carry out at a lower temperature, it can ensure that its biology is living to greatest extent
Property, it will not cause polyunsaturated fatty acid that isomerization and polymerisation occurs, preferably ensure that nutrition and the physiology of aliphatic acid
Activity.
Specific embodiment
It is further illustrated the present invention below by specific embodiment.
Embodiment one
1st, a kind of production method of little rice bran edible oil, it is characterised in that it is made of following step：
1）, little rice bran is distributed into filter bag, according to 1:The material ratio of 22-25 (g/mL) adds in n-hexane as Extraction solvent, water-bath
When refluxing extraction 5-6 is small, water bath reflux temperature is 60-65 DEG C；
2）Distilled is carried out to step 1 extracting solution, n-hexane solvent is recycled, obtains millet oil extracted from rice husks；
3）, step 1 gained millet oil extracted from rice husks and sodium hydroxide ethanol solution pressed into l:The ratio mixing of 20-22 (g/mL), hydroxide
The concentration of sodium ethoxide solution is 5-6%, is to slowly warm up to 70-72 DEG C, when constant temperature reflux 2-2.5 is small under magnetic stirring, Ran Houleng
But to room temperature, adding in distilled water is completely dissolved it,
4）By the HC1 solution of 0.5-1mol/L by step 3) solution tune pH to 2-3, the 8-10 times of n-hexane extraction measured is added in,
Then oil reservoir is left and taken in layering, then is washed to neutrality with distillation, and anhydrous sodium sulfate drying recycles n-hexane, obtains fatty acid mixed；
5）, by step 4 gained fatty acid mixed, urea and absolute ethyl alcohol press l:5:150-160 (g/g/mL) ratio mixes, water-bath
It is heated to reflux being completely dissolved urea, cools down and when preservation 24-30 is small, take out decompression during preservation when 4-6 DEG C of preservation 24-30 is small
It filters, after filtrate boils off ethyl alcohol, n-hexane extraction is measured with 3-5 times, no urea is washed to, is dried with anhydrous sodium sulfate, recycling is just
Hexane obtains linoleic acid；
6）, by potassium hydroxide and glycerine with 1:13-15（g/mL）Dissolving is stirred in 80-85 DEG C, stirs and adds after logical nitrogen
Enter volume fraction 20-25% step 5 gained linoleic acid, rapid 3.5-5 hours to 190-200 DEG C of heating reaction exists after reaction
Continue to stir under nitrogen protection, be cooled to room temperature, add in the salt acid for adjusting pH of 0.5-1mol/L to 3-3.5, add in 3-5 times and measure just
Own institute's liquid separation extracts 2-3 time, merges n-hexane phase, and is washed to neutrality with distilling, and is dried with anhydrous sodium sulfate, recycle just oneself
Alkane, filling and sealing preserve.
Claims (5)
1. a kind of production method of little rice bran edible oil, it is characterised in that it is made of following step：
1）, little rice bran is distributed into filter bag, according to 1:The material ratio of 22-25 (g/mL) adds in n-hexane as Extraction solvent, water-bath
When refluxing extraction 5-6 is small；
2）Distilled is carried out to step 1 extracting solution, n-hexane solvent is recycled, obtains millet oil extracted from rice husks；
3）, step 1 gained millet oil extracted from rice husks and sodium hydroxide ethanol solution pressed into l:The ratio mixing of 20-22 (g/mL), in magnetic force
70-72 DEG C is to slowly warm up under stirring, when constant temperature reflux 2-2.5 is small, is subsequently cooled to room temperature, adding in distilled water makes it completely molten
Solution,
4）By the HC1 solution of 0.5-1mol/L by step 3) solution tune pH to 2-3, the 8-10 times of n-hexane extraction measured is added in,
Then oil reservoir is left and taken in layering, then is washed to neutrality with distillation, and anhydrous sodium sulfate drying recycles n-hexane, obtains fatty acid mixed；
5）, by step 4 gained fatty acid mixed, urea and absolute ethyl alcohol press l:5:150-160 (g/g/mL) ratio mixes, water-bath
Be heated to reflux being completely dissolved urea, cool down and preservation 24-30 it is small when, take out decompression filter, after filtrate boils off ethyl alcohol, use 3-5
Amount n-hexane extraction again, is washed to no urea, is dried with anhydrous sodium sulfate, recycles n-hexane, obtains linoleic acid；
6）, by potassium hydroxide and glycerine with 1:13-15（g/mL）Dissolving is stirred in 80-85 DEG C, stirs and adds after logical nitrogen
Enter volume fraction 20-25% step 5 gained linoleic acid, when heating reaction 3.5-5 is small rapidly, after reaction under nitrogen protection
Continue to stir, be cooled to room temperature, add in the salt acid for adjusting pH of 0.5-1mol/L to 3-3.5, add in 3-5 Bei Liangzhengji institutes liquid separation extraction
It takes 2-3 times, merges n-hexane phase, and neutrality is washed to distillation, dried with anhydrous sodium sulfate, recycle n-hexane, filling and sealing
It preserves.
A kind of 2. production method of little rice bran edible oil according to claim 1, it is characterised in that step 1 water-bath reflux temperature
It spends for 60-65 DEG C.
A kind of 3. production method of little rice bran edible oil according to claim 1, it is characterised in that step 3 sodium hydroxide second
The concentration of alcoholic solution is 5-6%.
A kind of 4. production method of little rice bran edible oil according to claim 1, it is characterised in that step 5 preserving process
For：When 4-6 DEG C of preservation 24-30 is small.
5. the production method of a kind of little rice bran edible oil according to claim 1, it is characterised in that step 6 is heated rapidly to
190-200℃。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441579.5A CN108048223A (en) | 2017-12-27 | 2017-12-27 | A kind of production method of little rice bran edible oil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441579.5A CN108048223A (en) | 2017-12-27 | 2017-12-27 | A kind of production method of little rice bran edible oil |
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| Publication Number | Publication Date |
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| CN108048223A true CN108048223A (en) | 2018-05-18 |
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| CN201711441579.5A Withdrawn CN108048223A (en) | 2017-12-27 | 2017-12-27 | A kind of production method of little rice bran edible oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411018A (en) * | 2020-03-23 | 2020-07-14 | 太原理工大学 | Method for converting fatty acid into fatty acid ethyl ester |
-
2017
- 2017-12-27 CN CN201711441579.5A patent/CN108048223A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411018A (en) * | 2020-03-23 | 2020-07-14 | 太原理工大学 | Method for converting fatty acid into fatty acid ethyl ester |
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Application publication date: 20180518 |
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