CN103451008A - Method for preparing rice bran crude oil from rice bran - Google Patents
Method for preparing rice bran crude oil from rice bran Download PDFInfo
- Publication number
- CN103451008A CN103451008A CN2013103901984A CN201310390198A CN103451008A CN 103451008 A CN103451008 A CN 103451008A CN 2013103901984 A CN2013103901984 A CN 2013103901984A CN 201310390198 A CN201310390198 A CN 201310390198A CN 103451008 A CN103451008 A CN 103451008A
- Authority
- CN
- China
- Prior art keywords
- rice bran
- crude oil
- extraction
- oil
- bran crude
- 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.)
- Pending
Links
Landscapes
- Fats And Perfumes (AREA)
- Edible Oils And Fats (AREA)
- Pyrane Compounds (AREA)
Abstract
The invention relates to a method for preparing rice bran crude oil from rice bran, and particularly relates to a method for preparing low-bran wax rice bran crude oil rich in physiologically active substances from the rice bran at a low temperature. The lixiviation of the existing rice bran oil mostly pursues high extraction rate purely and ignores the influence of process conditions on oil characteristics. In order to solve the problem of how to keep good nutritive value of oil on the premise of obtaining high extraction rate during bran oil extraction, the method is as follows: the rice bran crude oil is extracted by adopting a low-temperature extraction process. According to the invention, the oryzanol and tocopherol content of the rice bran crude oil lixiviated under the condition of 20 DEG C is far higher than that of the rice bran crude oil lixiviated at a high temperature, in such a way, the nutritive value of the rice bran oil can be effectively enhanced; in addition, waxes are difficult to separate out and enter the rice bran crude oil under the condition of low temperature according to the hot melting and cold separating principle of the bran waxes on n-hexane, so that the quality, such as transparency, smell and color, of the rice bran oil is enhanced, and the separation of the physiologically active substances during wax freezing treatment is reduced.
Description
Technical field
The present invention relates to a kind of from rice bran low temperature preparation be rich in the method for the rice bran crude oil of physiologically active substance and low chaff wax.
Background technology
Rice bran accounts for 5%～5.5% of paddy weight, and Rice plumule accounts for 2.5% left and right.Can extract the rice bran crude oil from this special oils of rice bran, obtain having the edible rice bran oil of nutrient health-care function through refining.Rice pollard oil is a kind of nutritious vegetables oil, and unsaturated fatty acid content is high, and oleic acid and linolic acid have reached the best proportioning of 1:1, are rich in the active skull cap components such as thiaminogen, tocopherol and tocotrienols simultaneously, and after edible, specific absorption reaches more than 90%.Approximately contain 2%～5% wax in Rice pollard oil.Chaff wax is water insoluble, ethanol etc., but some solvent is had to the character of hot melt cold analysis as normal hexane, Virahol, No. six solvents etc., and while heating, chaff wax all is dissolved in grease; But, when temperature reduces, can partly or entirely separate out.At present, the solvent extraction method liquefaction that suitability for industrialized production adopts, due to excess Temperature, can make most waxs and pigment be dissolved in the middle of Rice pollard oil, increased consumption and the refining difficulty of refining reagent, has a strong impact on Rice pollard oil quality and nutritive value.If extraction at a lower temperature, can utilize wax in rice bran and colloid to the solubleness of hexane and the relation of extraction temperature, when extraction temperature is low, wax and colloid are dissolved in hexane hardly, and the temperature in the time of therefore can controlling leaching obtains the content of wax and the few crude oil of colloid.
Except the relevant report of Rice pollard oil low-temp extraction of Japan, the research of extracting about Rice pollard oil both at home and abroad is mainly to be centered around to utilize enzyme process and supercritical carbon dioxide extraction method to extract rice bran wet goods report, the i.e. domestic relevant report that there is no at present Rice pollard oil low-temp extraction and Study on Refining thereof.Mostly the lixiviate of Rice pollard oil at present is simple pursuit high extraction, and ignored the impact of processing condition on oil property, especially under higher temperature condition, in rice bran, the various bioactivators such as thiaminogen, tocopherol, policosanol, γ-Hi-Z, angle soft-shelled turtle alkene, forulic acid are destroyed, directly affect its application.In order to solve obtaining under the prerequisite of high extraction, how to keep the nutritive value that grease is good be the problem that Rice pollard oil extracts, and this patent takes low-temperature extraction technique to extract the rice bran crude oil.Leach thiaminogen and tocopherol content in the rice bran crude oil and, far above high-temp extracting rice bran crude oil, can effectively strengthen like this nutritive value of Rice pollard oil under cold condition.Moreover, according to hot melt cold analysis principle, wax is difficult for separating out and enters in the rice bran crude oil under cold condition, improves the qualities such as Rice pollard oil transparency, smell and color, the separating out of physiologically active substance when reducing freezing wax and processing, reduce Chinese honey locust and gum formation and separate out the time.
Summary of the invention
Keep the problem of the nutritive value that grease is good in order to solve Rice pollard oil under the prerequisite of high extraction, the object of the present invention is to provide a kind of from rice bran low temperature prepare the method for Rice pollard oil, in the rice bran crude oil of preparation, physiologically active substance (as thiaminogen and tocopherol) content is high, wax content is low, improve the qualities such as Rice pollard oil transparency, smell and color, the separating out of physiologically active substance when reducing freezing wax and processing, and then improve the nutritive value of product.From rice bran, low temperature prepares Rice pollard oil and realizes by following steps: one, the preparation of rice bran crude oil; Two, the mensuration of the physical and chemical indexes of rice bran crude oil.
technical scheme
Be purchased from the enterprise's puffed rice bran dregs of rice → low-temperature extraction → centrifugal → rotary evaporation → recovery solvent → rice bran crude oil
embodiment:
The low-temperature extraction orthogonal of Rice pollard oil: take a certain amount of puffed rice bran, the normal hexane that utilization has thermosol cold analysis character to chaff wax is solvent, solvent and a certain amount of rice bran are put into to triangular flask, choose extraction temperature, extraction time and three factors of solid-liquid ratio, after completion of the reaction, take Rice pollard oil extraction yield and wax content as index, carry out the suitableeest scope that experiment of single factor is determined above-mentioned factor, and take experiment of single factor as basis, adopt orthogonal optimization low-temperature extraction technique.
Embodiment one: a kind of method for preparing the rice bran crude oil from rice bran, it is characterized in that the method that is rich in the rice bran crude oil of physiologically active substance and low chaff wax with extraction under the normal hexane cold condition realizes by following steps: one, the preparation of rice bran crude oil: the puffed rice bran that takes 100g, the normal hexane that utilization has thermosol cold analysis character to chaff wax is solvent, the puffed rice bran suspension liquid that is 1:1～1:5 by solid-liquid ratio is put into tool plug Erlenmeyer flask, put into magnetic stirring apparatus, setting extraction temperature is 10～30 ℃, after the extraction time of 1～3h, suspension liquid is respectively charged into to centrifuge tube, be placed in explosion protected centrifugal machine, under the 3000r/min condition, centrifugal 15min, get supernatant liquid, pour clear liquid into rotatory evaporator, bath temperature is 60 ℃, rotating speed is under the 100r/min condition, evaporation 15min, can obtain the rice bran crude oil, stand-by in-5 ℃ of refrigerations, two, rice bran crude oil physico-chemical property index: the extraction yield that records the rice bran crude oil is 16.70%, wax content is 0.79%, and alpha-tocopherol is 25.16mg/100g, and Gamma-Tocopherol is 35.39 mg/100g, alpha-tocotrienol is 15.53 mg/100g, and γ-tocotrienols is 116.89 mg/100g.
Embodiment two: the difference of present embodiment and embodiment one is in step 1 that just puffed rice bran and normal hexane add in tool plug Erlenmeyer flask and carry out low-temperature extraction rice bran crude oil with the ratio of 1:1～1:5, and other step is identical with embodiment one.
Embodiment three: the difference of present embodiment and embodiment one is in step 1 that just puffed rice bran and normal hexane add in tool plug Erlenmeyer flask with the ratio of 1:1～1:5, extraction temperature is to carry out low-temperature extraction rice bran crude oil under 10～30 ℃ of conditions, and other step is identical with embodiment one.
Embodiment four: the difference of present embodiment and embodiment one is in step 1 that just puffed rice bran and normal hexane add in tool plug Erlenmeyer flask with the ratio of 1:1～1:5, extraction temperature is 10～30 ℃, extraction time is to carry out low-temperature extraction rice bran crude oil under 1～3h condition, and other step is identical with embodiment one.
Embodiment five: the difference of present embodiment and embodiment one is that result that will be definite by single factor in step 1 further optimizes the condition that is extracted again, the extraction conditions of optimizing is that puffed rice bran and normal hexane add in tool plug Erlenmeyer flask with the ratio of 1:2～1:4, extraction temperature is 15～25 ℃, extraction time is 1.5～2.5h, by optimum result, extracted, under optimum state, the extraction yield of rice bran crude oil is 10～20%, and other step is identical with embodiment one.
Embodiment six: the difference of present embodiment and embodiment one is that the wax content of rice bran in step 2 is 0.5～1.5%, the rice bran crude oil wax content that the lixiviate of low-temp extraction technique goes out is about 1.8～3.0% than high temperature (55 ℃) is low, alpha-tocopherol is 25.16mg/100g, Gamma-Tocopherol is 35.39 mg/100g, alpha-tocotrienol is 15.53 mg/100g, γ-tocotrienols is 116.89 mg/100g, and other step is identical with embodiment one.
Claims (6)
1. a method for preparing the rice bran crude oil from rice bran, it is characterized in that the method that is rich in the rice bran crude oil of physiologically active substance and low chaff wax with extraction under the normal hexane cold condition realizes by following steps: one, the preparation of rice bran crude oil: the puffed rice bran that takes 100g, the normal hexane that utilization has thermosol cold analysis character to chaff wax is solvent, the puffed rice bran suspension liquid that is 1:1～1:5 by solid-liquid ratio is put into tool plug Erlenmeyer flask, put into magnetic stirring apparatus, setting extraction temperature is 10～30 ℃, after the extraction time of 1～3h, suspension liquid is respectively charged into to centrifuge tube, be placed in explosion protected centrifugal machine, under the 3000r/min condition, centrifugal 15min, get supernatant liquid, pour clear liquid into rotatory evaporator, bath temperature is 60 ℃, rotating speed is under the 100r/min condition, evaporation 15min, can obtain the rice bran crude oil, stand-by in-5 ℃ of refrigerations, two, rice bran crude oil physico-chemical property index: the extraction yield that records the rice bran crude oil is 16.70%, wax content is 0.79%, and alpha-tocopherol is 25.16mg/100g, and Gamma-Tocopherol is 35.39 mg/100g, alpha-tocotrienol is 15.53 mg/100g, and γ-tocotrienols is 116.89 mg/100g.
2. the rice bran crude oil that is rich in physiologically active substance and low chaff wax that extracts under cold condition according to claim 1, is characterized in that in step 1, puffed rice bran and normal hexane being added in tool plug Erlenmeyer flask with the ratio of 1:1～1:5.
According to claim 1 under cold condition extraction be rich in the rice bran crude oil of physiologically active substance and low chaff wax, it is characterized in that in step 1, puffed rice bran and normal hexane being added in tool plug Erlenmeyer flask with the ratio of 1:1～1:5, extraction temperature is 10～30 ℃.
According to claim 1 under cold condition extraction be rich in the rice bran crude oil of physiologically active substance and low chaff wax, it is characterized in that in step 1, puffed rice bran and normal hexane being added in tool plug Erlenmeyer flask with the ratio of 1:1～1:5, extraction temperature is 10～30 ℃, and extraction time is 1～3h.
According to claim 1 under cold condition extraction be rich in the rice bran crude oil of physiologically active substance and low chaff wax, it is characterized in that in step 1 that the result definite by single factor further optimize the condition that is extracted again, the extraction conditions of optimizing is that puffed rice bran and normal hexane add in tool plug Erlenmeyer flask with the ratio of 1:2～1:4, extraction temperature is 15～25 ℃, extraction time is 1.5～2.5h, by optimum result, extracted, under optimum state, the extraction yield of rice bran crude oil is 10～20%.
According to claim 1 under cold condition extraction be rich in the rice bran crude oil of physiologically active substance and low chaff wax, the wax content that it is characterized in that rice bran in step 1 is 0.5～1.5%; The rice bran crude oil wax content that the lixiviate of low-temp extraction technique goes out is about 1.8～3.0% than high temperature is low; Alpha-tocopherol is 25.16mg/100g, and Gamma-Tocopherol is 35.39 mg/100g, and alpha-tocotrienol is 15.53 mg/100g, and γ-tocotrienols is 116.89 mg/100g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103901984A CN103451008A (en) | 2013-09-02 | 2013-09-02 | Method for preparing rice bran crude oil from rice bran |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103901984A CN103451008A (en) | 2013-09-02 | 2013-09-02 | Method for preparing rice bran crude oil from rice bran |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103451008A true CN103451008A (en) | 2013-12-18 |
Family
ID=49733852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103901984A Pending CN103451008A (en) | 2013-09-02 | 2013-09-02 | Method for preparing rice bran crude oil from rice bran |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103451008A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952232A (en) * | 2014-04-17 | 2014-07-30 | 贵州省黎平县侗乡米业有限公司 | Method for extracting rice bran oil from rice bran |
| CN105238552A (en) * | 2015-10-21 | 2016-01-13 | 江南大学 | Preparation method of rice bran crude oil with low acid value and low phosphorus content |
| CN111394171A (en) * | 2019-01-03 | 2020-07-10 | 江苏康之源粮油有限公司 | Novel composite solvent low-temperature extraction process for rice oil |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002238455A (en) * | 2001-02-15 | 2002-08-27 | Oriza Yuka Kk | Rice bran oil and method for producing the same |
-
2013
- 2013-09-02 CN CN2013103901984A patent/CN103451008A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002238455A (en) * | 2001-02-15 | 2002-08-27 | Oriza Yuka Kk | Rice bran oil and method for producing the same |
Non-Patent Citations (2)
| Title |
|---|
| 刘军海等: "米糠浸出和米糠油精炼技术研究新进展", 《中国油脂》 * |
| 王子明: "米糠低温浸出", 《中国油脂》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952232A (en) * | 2014-04-17 | 2014-07-30 | 贵州省黎平县侗乡米业有限公司 | Method for extracting rice bran oil from rice bran |
| CN103952232B (en) * | 2014-04-17 | 2016-02-24 | 贵州省黎平县侗乡米业有限公司 | The method of Rice pollard oil is extracted in a kind of rice bran |
| CN105238552A (en) * | 2015-10-21 | 2016-01-13 | 江南大学 | Preparation method of rice bran crude oil with low acid value and low phosphorus content |
| CN111394171A (en) * | 2019-01-03 | 2020-07-10 | 江苏康之源粮油有限公司 | Novel composite solvent low-temperature extraction process for rice oil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103435677B (en) | A kind of novel method extracting thiaminogen from Rice bran crude oil | |
| CN106350208B (en) | A kind of preparation method of camellia oil used for cosmetic | |
| CN103666750B (en) | A kind of method of refining of peony seed oil | |
| CN103351945B (en) | Method for extracting camellia oleosa seed oil by weak acid aqueous solution | |
| CN104017645B (en) | The table crystalline substance copolymerization of a kind of peony seed oil is combined the method carrying out dewaxing with alcohol extraction | |
| CN103497830A (en) | High-quality wheat germ oil and subcritical preparation method thereof | |
| CN103461645B (en) | Preparation method of cottonseed protein | |
| CN103396879A (en) | Demulsification method in production processes for extracting tea-seed oil extraction with participation of water phase | |
| CN104928012A (en) | Method for extracting tea oil by demulsification based on aqueous enzymatic method | |
| CN107653055A (en) | A kind of method of ultrasonic wave added extracting tea seed oil by using enzymatic hydrolysis | |
| CN103451008A (en) | Method for preparing rice bran crude oil from rice bran | |
| CN107216945A (en) | A kind of preparation method of medicine injection tea oil | |
| CN106833888A (en) | A kind of efficient method for acid stripping and refining of tea seed crude oil | |
| CN110526804A (en) | A kind of method that eutectic solvent extracts hydroxytyrosol | |
| CN102875658A (en) | High-value utilization and separation method for oil producing microorganism energy microalgae | |
| CN103952232A (en) | Method for extracting rice bran oil from rice bran | |
| CN104026223A (en) | Edible blend oil and preparation method thereof | |
| CN102617668A (en) | Production process of high-purity abamectin fine powder | |
| CN104069187B (en) | The processing method of extraction purification tartary buckwheat flavone from Radix Et Rhizoma Fagopyri Tatarici | |
| CN104450152A (en) | Compound technology for extracting tea seed oil employing aqueous enzymatic method | |
| CN103467432B (en) | A kind of method extracting vitamin E from deodorizer distillate of idesia polycarpa oil | |
| CN107384587A (en) | A kind of acid stripping method of cold press peony seed oil | |
| CN205653423U (en) | Vegetable oil integration refining equipment | |
| CN105349252A (en) | Method for separating high-purity rice bran crude oil from rice bran | |
| CN104877757B (en) | Peracid value rice bran oil synchronization depickling dewaxing technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131218 |