CN106520359A - Method for preparing high-oryzanol-low-acid-value rice bran oil - Google Patents
Method for preparing high-oryzanol-low-acid-value rice bran oil Download PDFInfo
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- CN106520359A CN106520359A CN201610992722.9A CN201610992722A CN106520359A CN 106520359 A CN106520359 A CN 106520359A CN 201610992722 A CN201610992722 A CN 201610992722A CN 106520359 A CN106520359 A CN 106520359A
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- Prior art keywords
- rice bran
- bran oil
- oryzanol
- oil
- low
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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
- 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
- C11B1/00—Production of fats or fatty oils from raw materials
- C11B1/12—Production of fats or fatty oils from raw materials by melting out
- C11B1/16—Production of fats or fatty oils from raw materials by melting out with steam
-
- 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
-
- 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
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
-
- 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
- C11B3/12—Refining fats or fatty oils by distillation
- C11B3/14—Refining fats or fatty oils by distillation with the use of indifferent gases or vapours, e.g. steam
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- Edible Oils And Fats (AREA)
- Fats And Perfumes (AREA)
Abstract
The invention discloses a method for preparing high-oryzanol-low-acid-value rice bran oil. The method is characterized in that: rice bran, alkaline protease, activated clay, activated carbon, oryzanol, chitosan, sodium alginate and CaCl2 are used as raw materials. The invention adopts an aqueous enzymatic method to extract grease from the rice bran, an aqueous enzymatic method oil extracting technology is safe, environment-friendly and green, and the obtained vegetable oil is pollution-free; the activated clay and the activated carbon are added to decolorize the rice bran oil; a supercritical CO2 extraction technology has the advantages of high extraction efficiency, good selectivity, simple process, no solvent residue and the like, so that the rice bran oil refining technological process can be simplified, and the refining rate of the rice bran oil can be improved; a molecular distillation technology is used for deacidification treatment of the rice bran oil, and is a grease deacidification technology having the advantages of low energy consumption, low destruction of grease, cleanness and the like, so that the high-oryzanol-low-acid-value rice bran oil can be obtained.
Description
Technical field
The present invention relates to a kind of preparation method of rice bran oil, and in particular to a kind of system of high oryzanol-low-acid value rice bran oil
Preparation 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 it is high, be a kind of important oil sources.Rice bran oil has to health containing various as a kind of new type natural vegetable oil
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 is increasingly subject to the attention and favor of consumer because of abundant nutritive value and health care.
Xie Ying is in its master thesis《Rice bran oil produce and refinery practice research》In with 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, optimal by orthogonal experiment optimization
Microwave technique, have studied degumming in Rice bran crude oil refinery practice, dewaxing, decolouring, depickling step.Organic solvent is leached
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；Atlapulgite and activated carbon are added, desolventing technology is carried out to rice bran oil；Overcritical extraction
The technology of taking has the advantages that high recovery rate, selective good, process is simple, no solvent residue, can simplify next step refining of crude rice bran oil
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, little, cleaning is destroyed to grease；Obtain a kind of high oryzanol-
Low-acid value rice bran oil.
The content of the invention
The invention mainly solves the technical problem of a kind of preparation method of high oryzanol-low-acid value rice bran oil is provided, according to
The rice bran oil oryzanol content for preparing according to the technique is high, acid number is low, quality better.
The technical problem to be solved is realized using following technical scheme：
Rice bran 40-58, alkali protease 5-9, atlapulgite 4-10, activated carbon 3-6, oryzanol 3-7, shitosan 2-4, alginic acid
Sodium 1-3, CaCl2 1-2, distilled water, appropriate acetic acid.
The preparation method of a kind of high oryzanol-low-acid value rice bran oil, it is characterised in that carry out according to the following steps：
A. rice bran is crossed into 40-60 mesh sieves, the regulation moisture content that adds water is 20-30%, is loaded in heat-resisting plate, is paved into 1-6cm thick 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 into supercritical CO2In extraction equipment, in 40-60 DEG C, CO2Flow 45-60kg/h, pressure
Under 35-50MPa, 1-2h is extracted；
C. gained rice bran in b is added into alkali protease and water 1 through steam treatment:The mixture of 7-9, tune pH are 8-10,
In 50-60 DEG C of stirring enzymolysis 4-6h, centrifugation obtains free oil A and emulsion；Emulsion is heated to into 90-100 DEG C, is stirred continuously
Boiling 20-40min, is centrifuged obtaining free oil B, and both are mixed to get rice bran oil；
D. resulting material in c is heated to into 110-150 DEG C, adds atlapulgite and activated carbon, be stirred continuously, decolouring 1-2h takes out
Filter；
E. by CaCl2It is dissolved in acetic acid and distilled water, adds shitosan, stir to obtain A liquid, by sodium alginate distillation water dissolves,
Oryzanol is added, is poured in the solidifying pool containing A liquid after stirring 1-2h, is solidified 1-2h, wash 3-5 time, be placed on filter paper, in 50-
70 DEG C of drying；
F. resulting material in d, e is added in molecular clock instrument, opens cooling water, fill it up with liquid nitrogen, vacuumize, rice bran oil is entered
Row preheating, stirring, in molecular clock rotating speed 180-240r/min, charging rate 2-5mL/min, pressure 1.0 × 10-7MPa, molecule
Under the conditions of vapo(u)rizing temperature 150-210 DEG C, 2-4h is processed, obtain a kind of high oryzanol-low-acid value rice bran oil.
The reaction mechanism of the present invention is as follows：
（1）Supercritical extraction technique has the advantages that high recovery rate, selective 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）Atlapulgite and activated carbon are added, desolventing technology is carried out to rice bran oil.
（4）The 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, little, cleaning is destroyed to grease.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention is realized are easy to understand, tie below
Specific embodiment is closed, the present invention is expanded on further.
Embodiment
A kind of preparation method of high oryzanol-low-acid value rice bran oil, is obtained by the raw material of following weight parts (g)：
Rice bran 58, alkali protease 9, atlapulgite 4, activated carbon 6, oryzanol 7, shitosan 4, sodium alginate 3, CaCl2 2, steam
Distilled water, appropriate acetic acid.
The preparation method of a kind of high oryzanol-low-acid value rice bran oil, it is characterised in that carry out according to the following steps：
A. rice bran is crossed into 50 mesh sieves, the regulation moisture content that adds water is 20%, is loaded in heat-resisting plate, is paved into 5cm thickness and spreads out even, be placed in
In micro-wave oven, take out after 800-900W, heating 180s, be cooled to room temperature, it is standby；
B. resulting material in a is placed in into supercritical CO2In extraction equipment, in 50-60 DEG C, CO2Flow 50-60kg/h, pressure
Under 40-50MPa, 2h is extracted；
C. gained rice bran in b is added into alkali protease and water 1 through steam treatment:8 mixture, tune pH are 8-9, in
50-60 DEG C of stirring enzymolysis 4h, centrifugation obtain free oil A and emulsion；Emulsion is heated to into 90-100 DEG C, boiling is stirred continuously
40min, is centrifuged obtaining free oil B, and both are mixed to get rice bran oil；
D. resulting material in c is heated to into 120-130 DEG C, adds atlapulgite and activated carbon, be stirred continuously, decolouring 1h takes out
Filter；
E. by CaCl2It is dissolved in acetic acid and distilled water, adds shitosan, stir to obtain A liquid, by sodium alginate distillation water dissolves,
Oryzanol is added, is poured in the solidifying pool containing A liquid after stirring 1h, is solidified 2h, wash 3 times, be placed on filter paper, dry in 50-60 DEG C
It is dry；
F. resulting material in d, e is added in molecular clock instrument, opens cooling water, fill it up with liquid nitrogen, vacuumize, rice bran oil is entered
Row preheating, stirring, in molecular clock rotating speed 200-220r/min, charging rate 4-5mL/min, pressure 1.0 × 10-7MPa, molecule
Under the conditions of vapo(u)rizing temperature 180-200 DEG C, 2h is processed, obtain a kind of high oryzanol-low-acid value rice bran oil.
High oryzanol prepared by above-described embodiment-low-acid value rice bran oil performance test results are as follows：
Acid number is 1.01mg KOH/g, and acid number reaches rice bran oil country three-level oil standard；
Peroxide value is 2.41mmol/kg, and peroxide value reaches the country-level oil standard of rice bran oil；
Oryzanol content is 3.15%, reaches rice bran oil national grade ii standard.
Claims (2)
1. the preparation method of a kind of high oryzanol-low-acid value rice bran oil, it is characterised in that be obtained by the raw material of following weight parts：
Rice bran 40-58, alkali protease 5-9, atlapulgite 4-10, activated carbon 3-6, oryzanol 3-7, shitosan 2-4, alginic acid
Sodium 1-3, CaCl2 1-2, distilled water, appropriate acetic acid.
2. the preparation method of a kind of high oryzanol according to claim 1-low-acid value rice bran oil, it is characterised in that by with
Lower step is carried out：
A. rice bran is crossed into 40-60 mesh sieves, the regulation moisture content that adds water is 20-30%, is loaded in heat-resisting plate, is paved into 1-6cm thick 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 into supercritical CO2In extraction equipment, in 40-60 DEG C, CO2Flow 45-60kg/h, pressure 35-
Under 50MPa, 1-2h is extracted；
C. gained rice bran in b is added into alkali protease and water 1 through steam treatment:The mixture of 7-9, tune pH are 8-10,
In 50-60 DEG C of stirring enzymolysis 4-6h, centrifugation obtains free oil A and emulsion；Emulsion is heated to into 90-100 DEG C, is stirred continuously
Boiling 20-40min, is centrifuged obtaining free oil B, and both are mixed to get rice bran oil；
D. resulting material in c is heated to into 110-150 DEG C, adds atlapulgite and activated carbon, be stirred continuously, decolouring 1-2h takes out
Filter；
E. by CaCl2It is dissolved in acetic acid and distilled water, adds shitosan, stir to obtain A liquid, by sodium alginate distillation water dissolves,
Oryzanol is added, is poured in the solidifying pool containing A liquid after stirring 1-2h, is solidified 1-2h, wash 3-5 time, be placed on filter paper, in 50-
70 DEG C of drying；
F. resulting material in d, e is added in molecular clock instrument, opens cooling water, fill it up with liquid nitrogen, vacuumize, rice bran oil is entered
Row preheating, stirring, in molecular clock rotating speed 180-240r/min, charging rate 2-5mL/min, pressure 1.0 × 10-7MPa, molecule
Under the conditions of vapo(u)rizing temperature 150-210 DEG C, 2-4h is processed, obtain a kind of high oryzanol-low-acid value rice bran oil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610992722.9A CN106520359A (en) | 2016-11-11 | 2016-11-11 | Method for preparing high-oryzanol-low-acid-value rice bran oil |
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| CN201610992722.9A CN106520359A (en) | 2016-11-11 | 2016-11-11 | Method for preparing high-oryzanol-low-acid-value rice bran oil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI741803B (en) * | 2020-09-21 | 2021-10-01 | 臺灣菸酒股份有限公司 | Method for preparing rice bran extract and its use in preparing anti-aging beauty care products |
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 CN201610992722.9A patent/CN106520359A/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 (2)
| 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》 * |
| 顾杰波等: "谷维素-壳聚糖缓释微囊的制备", 《中国组织工程研究与临床康复》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI741803B (en) * | 2020-09-21 | 2021-10-01 | 臺灣菸酒股份有限公司 | Method for preparing rice bran extract and its use in preparing anti-aging beauty care products |
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Application publication date: 20170322 |