CN106336944A - Preparing method for rice bran oil with low acid value and high quality - Google Patents
Preparing method for rice bran oil with low acid value and high quality Download PDFInfo
- Publication number
- CN106336944A CN106336944A CN201610992551.XA CN201610992551A CN106336944A CN 106336944 A CN106336944 A CN 106336944A CN 201610992551 A CN201610992551 A CN 201610992551A CN 106336944 A CN106336944 A CN 106336944A
- Authority
- CN
- China
- Prior art keywords
- rice bran
- bran oil
- oil
- low acid
- acid number
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/02—Pretreatment
- C11B1/025—Pretreatment by enzymes or microorganisms, living or dead
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/10—Production of fats or fatty oils from raw materials by extracting
- C11B1/104—Production of fats or fatty oils from raw materials by extracting using super critical gases or vapours
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B3/00—Refining fats or fatty oils
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
Abstract
The invention discloses a preparing method for rice bran oil with a low acid value and high quality. The preparing method is characterized in that raw materials include 40-60 parts of rice bran, 5-10 parts of alkali protease, 4-8 parts of activated clay, 3-7 parts of active carbon and distilled water. According to the preparing method, grease in rice bran is extracted with an aqueous enzymatic method, wherein the aqueous enzymatic method oil extraction technology is safe and environmentally friendly, and obtained plant oil is free of contamination; activated clay and active carbon are added to carry out decoloring on rice bran oil; the supercritical CO2 extraction technology has the advantages of being high in extraction rate and selectivity, simple in process, free of solvent residues and the like, the rice bran oil refining technological process can be simplified, and the refining rate of rice bran oil can be increased; a molecular distillation technology is adopted to carry out deacidification treatment on rice bran oil, wherein the molecular distillation technology is a grease deacidification technology and has the advantages of being low in energy consumption, small in damage to grease, clean and the like; the rice bran oil with a low acid value and high quality is obtained.
Description
Technical field
The present invention relates to a kind of preparation method of rice bran oil is and in particular to a kind of preparation of low acid number-high-quality rice bran oil
Method.
Background technology
China is eating rice production state maximum in the world, and rice bran is the important by-products in rice process, and rice bran
In fat content high, be a kind of important oil sources.Rice bran oil, as a kind of new type natural vegetable oil, has to health containing multiple
The sp act composition of benefit.Rice bran oil has enhance immunity, reduces cholesterol, adjust blood fat, prevent the functions such as artery sclerosis,
It is of high nutritive value.Rice bran oil, because of abundant nutritive value and health care, is increasingly subject to attention and the favor of consumer.
Xie Ying its master thesis " rice bran oil produce and refinery practice research " in fresh rice bran as raw material, with
Optimization rice bran microwave technique is target, chooses ten kinds of organic solvents and extracts rice bran oil, is optimized optimal by orthogonal experiment
Microwave technique, have studied degumming in Rice bran crude oil refinery practice, dewaxing, decolouring, depickling step.Organic solvent leaches
Legal system oil oil yield is high, but, the use of organic solvent has potential safety hazard, and refinery practice is excessively loaded down with trivial details.
With rice bran as raw material, using the grease in aqueous enzymatic extraction rice bran, aqueous enzymatic method carries oil tech safety, ring to the present invention
Guarantor, green, the vegetable oil of acquisition is pollution-free；Add atlapulgite and activated carbon, desolventing technology is carried out to rice bran oil；Overcritical extraction
Take technology to have the advantages that recovery rate is high, selectively good, process is simple, no solvent residue, next step refining of crude rice bran oil can be simplified
Technological process, improves the refining yield of rice bran oil；The present invention carries out depickling process using molecular distillation technique to rice bran oil, and molecule steams
The technology of evaporating is a kind of lipin deacidifying technology, has the advantages that energy consumption is low, grease is destroyed with little, cleaning；Obtain a kind of low acid number-height
Quality rice bran oil.
Content of the invention
The invention mainly solves the technical problem of providing a kind of preparation method of low acid number-high-quality rice bran oil, according to
The rice bran oil acid number of this technique preparation is low, quality better.
The technical problem to be solved to be realized using following technical scheme:
Rice bran 40-60, alkali protease 5-10, atlapulgite 4-8, activated carbon 3-7, distill appropriate amount of water.
A kind of preparation method of low acid number-high-quality rice bran oil is it is characterised in that sequentially include the following steps:
A. rice bran is crossed 40-60 mesh sieve, the regulation moisture content that adds water is 20-30%, loads in heat-resisting plate, is paved into 1-6cm thickness simultaneously
Stand is even, is placed in micro-wave oven, takes out, be cooled to room temperature after 700-1000w, heating 90-180s, standby；
B. resulting material in a is placed in overcritical co2In extraction equipment, in 40-60 DEG C, co2Flow 45-60kg/h, pressure
Under 35-50mpa, extract 1-2h；
C. by gained rice bran in b through steam treatment, add the mixture of alkali protease and water 1:7-9, tune ph is 8-10,
In 50-60 DEG C of stirring enzymolysis 4-6h, centrifugation obtains free oil a and emulsion；Emulsion is heated to 90-100 DEG C, is stirred continuously
Boiling 20-40min, is centrifuged obtaining free oil b, both are mixed to get rice bran oil；
D. resulting material in c is heated to 110-150 DEG C, adds atlapulgite and activated carbon, be stirred continuously, decolour 1-2h, takes out
Filter；
E. resulting material in d is added in molecular clock instrument, open cooling water, fill it up with liquid nitrogen, vacuumize, rice bran oil is carried out
Preheating, stirring, in molecular clock rotating speed 180-240r/min, charging rate 2-5ml/min, pressure 1.0 × 10-7Mpa, molecule steam
Under the conditions of evaporating temperature 150-210 DEG C, process 2-4h, obtain a kind of rice bran oil of low acid number-high-quality.
The reaction mechanism of the present invention is as follows:
(1) supercritical extraction technique has the advantages that recovery rate is high, selectively good, process is simple, no solvent residue, under can simplifying
One step refining of crude rice bran oil technological process, improves the refining yield of rice bran oil.
(2) with rice bran as raw material, using the grease in aqueous enzymatic extraction rice bran, it is safe and environment-friendly, green that aqueous enzymatic method carries oil tech
Color, the vegetable oil of acquisition is pollution-free.
(3) add atlapulgite and activated carbon, desolventing technology is carried out to rice bran oil.
(4) present invention carries out depickling process using molecular distillation technique to rice bran oil, and molecular distillation technique is a kind of grease
Deacidification technique, has the advantages that energy consumption is low, grease is destroyed with little, cleaning.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to understand, tie below
Close specific embodiment, the present invention is expanded on further.
Embodiment
A kind of preparation method of low acid number-high-quality rice bran oil, is obtained by the raw material of following weight parts (g):
Rice bran 60, alkali protease 10, atlapulgite 8, activated carbon 7, distills appropriate amount of water.
A kind of preparation method of low acid number-high-quality rice bran oil is it is characterised in that sequentially include the following steps:
A. rice bran is crossed 50 mesh sieves, the regulation moisture content that adds water is 20%, loads in heat-resisting plate, is paved into 5cm thickness and spreads out even, is placed in
In micro-wave oven, take out after 800-900w, heating 180s, be cooled to room temperature, standby；
B. resulting material in a is placed in overcritical co2In extraction equipment, in 50-60 DEG C, co2Flow 50-60kg/h, pressure
Under 40-50mpa, extract 2h；
C. by gained rice bran in b through steam treatment, add the mixture of alkali protease and water 1:8, tune ph is 8-9, in
50-60 DEG C of stirring enzymolysis 4h, centrifugation obtains free oil a and emulsion；Emulsion is heated to 90-100 DEG C, is stirred continuously boiling
40min, is centrifuged obtaining free oil b, both are mixed to get rice bran oil；
D. resulting material in c is heated to 120-130 DEG C, adds atlapulgite and activated carbon, be stirred continuously, decolour 1h, takes out
Filter；
E. resulting material in d is added in molecular clock instrument, open cooling water, fill it up with liquid nitrogen, vacuumize, rice bran oil is carried out
Preheating, stirring, in molecular clock rotating speed 200-220r/min, charging rate 4-5ml/min, pressure 1.0 × 10-7Mpa, molecule steam
Under the conditions of evaporating temperature 180-200 DEG C, process 2h, obtain a kind of rice bran oil of low acid number-high-quality.
Low acid number-high-quality rice bran oil the performance test results of above-described embodiment preparation are as follows:
Acid number is 1.02mg koh/g, and acid number reaches rice bran oil country three-level oil standard；
Peroxide value is 2.43mmol/kg, and peroxide value reaches the country-level oil standard of rice bran oil；
Oryzanol content is 3.12%, reaches rice bran oil national grade ii standard.
Claims (2)
1. a kind of preparation method of low acid number-high-quality rice bran oil is it is characterised in that be obtained by the raw material of following weight parts:
Rice bran 40-60, alkali protease 5-10, atlapulgite 4-8, activated carbon 3-7, distill appropriate amount of water.
2. a kind of preparation method of low acid number-high-quality rice bran oil according to claim 1 is it is characterised in that press following
Step is carried out:
A. rice bran is crossed 40-60 mesh sieve, the regulation moisture content that adds water is 20-30%, loads in heat-resisting plate, is paved into 1-6cm thickness simultaneously
Stand is even, is placed in micro-wave oven, takes out, be cooled to room temperature after 700-1000w, heating 90-180s, standby；
B. resulting material in a is placed in overcritical co2In extraction equipment, in 40-60 DEG C, co2Flow 45-60kg/h, pressure 35-
Under 50mpa, extract 1-2h；
C. by gained rice bran in b through steam treatment, add the mixture of alkali protease and water 1:7-9, tune ph is 8-10,
In 50-60 DEG C of stirring enzymolysis 4-6h, centrifugation obtains free oil a and emulsion；Emulsion is heated to 90-100 DEG C, is stirred continuously
Boiling 20-40min, is centrifuged obtaining free oil b, both are mixed to get rice bran oil；
D. resulting material in c is heated to 110-150 DEG C, adds atlapulgite and activated carbon, be stirred continuously, decolour 1-2h, takes out
Filter；
E. resulting material in d is added in molecular clock instrument, open cooling water, fill it up with liquid nitrogen, vacuumize, rice bran oil is carried out
Preheating, stirring, in molecular clock rotating speed 180-240r/min, charging rate 2-5ml/min, pressure 1.0 × 10-7Mpa, molecule steam
Under the conditions of evaporating temperature 150-210 DEG C, process 2-4h, obtain a kind of rice bran oil of low acid number-high-quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610992551.XA CN106336944A (en) | 2016-11-11 | 2016-11-11 | Preparing method for rice bran oil with low acid value and high quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610992551.XA CN106336944A (en) | 2016-11-11 | 2016-11-11 | Preparing method for rice bran oil with low acid value and high quality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106336944A true CN106336944A (en) | 2017-01-18 |
Family
ID=57841782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610992551.XA Pending CN106336944A (en) | 2016-11-11 | 2016-11-11 | Preparing method for rice bran oil with low acid value and high quality |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267283A (en) * | 2017-06-24 | 2017-10-20 | 光山县四方植物油有限公司 | A kind of Biorefinery method of rice bran oil |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295986A (en) * | 2011-08-03 | 2011-12-28 | 中南林业科技大学 | Preparation method of rice bran oil with low acid value |
-
2016
- 2016-11-11 CN CN201610992551.XA patent/CN106336944A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102295986A (en) * | 2011-08-03 | 2011-12-28 | 中南林业科技大学 | Preparation method of rice bran oil with low acid value |
Non-Patent Citations (1)
| Title |
|---|
| 谢婷等: "米糠油工业化制取关键技术研究现状和进展", 《粮食与油脂》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107267283A (en) * | 2017-06-24 | 2017-10-20 | 光山县四方植物油有限公司 | A kind of Biorefinery method of rice bran oil |
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Application publication date: 20170118 |