CN104673490A - Refining method of rice bran oil - Google Patents
Refining method of rice bran oil Download PDFInfo
- Publication number
- CN104673490A CN104673490A CN201510074429.XA CN201510074429A CN104673490A CN 104673490 A CN104673490 A CN 104673490A CN 201510074429 A CN201510074429 A CN 201510074429A CN 104673490 A CN104673490 A CN 104673490A
- Authority
- CN
- China
- Prior art keywords
- oil
- add
- rice bran
- rice
- refining
- 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.)
- Granted
Links
Landscapes
- Fats And Perfumes (AREA)
Abstract
The invention belongs to the technical field of grease process and particularly relates to a refining method of rice bran oil. The refining method of the rice bran oil comprises the following steps: degumming the rice bran crude oil through an enzymic method, deacidifying and decolouring through the enzymic method to obtain the rice bran oil. The method has the following beneficial effects: by adopting the method for refining the rice bran oil, enzymolysis is performed on certain elements of the rice bran oil by a bio-enzyme, so that the quality of the rice bran oil is increased and the contents of the active substances such as oryzanol and totaxin in the oil product are furthest kept. The method provided by the invention is mild in action condition, the later organic solvent cannot be processed or the environment pollution cannot be caused.
Description
Technical field
The invention belongs to grease processing technology field, be specifically related to a kind of method of refining of Rice pollard oil.
Background technology
Rice bran is the byproduct of cereal processing, is rich in grease, protein, Mierocrystalline cellulose and multivitamin.Rice bran oil-containing 16-22%, Rice pollard oil contains unsaturated fatty acids, oleic acid, linolic acid, and containing abundant thiaminogen.Thiaminogen has effects such as reducing platelet aggregation, the synthesis of minimizing hepatic cholesterol and reduction cholesterol absorption.But for a long time, rice bran is only as extensive forage feed livestock and poultry, and make its nutritive value and economy of resources play well and to utilize, cause great waste, to this, brainstrust is deeply felt gentle and cherished.According to oil and foodstuffs circle, expert points out, because in rice bran, oleaginousness reaches 15%-20%, so be enough to therefrom refining by modern technology to go out Rice pollard oil.Rice pollard oil not only possesses the excellent cooking and edible performance, and has unique nourishing function, thus great exploitation potential for its and utility value.In fact, the Ancient Times in China history just having edible rice bran oil among the people.Carry according in Compendium of Material Medica, Rice pollard oil taste is sweet pungent, and property is put down, and have unobstructed, the merit of lower gas, appetizing, cures mainly the disease such as the cancer of the esophagus, beriberi; Carry in " Chinese herbal cuisine voluminous dictionary ", Hi-Z contained in Rice pollard oil can improve neuro vegetative dysfunction, increases the content of glycogen in liver; Especially, it should be noted that, utilize modern means of science and technology also refining can go out a kind of effective cancer-resisting substance from Rice pollard oil.Since the nineties, Rice pollard oil, as origin of heat and nutritive health-care food, has been subject to the common concern of many developed countries in the world.Its fragrant odour had, high temperature resistant frying, the advantages such as resistance to permanent storage and almost unharmful substance generation, be any one vegetables oil incomparable, Rice pollard oil, as oil for cooking, has the advantage of its uniqueness, as fragrant odour, multiple high temp fries also nondiscoloration and resistance to long time stored etc.The chemical structure composition of Rice pollard oil is very excellent.According to detection, in its lipid acid, saturated fatty acid accounts for 15-20%, unsaturated fatty acids accounts for 80-85%, if segmentation is got up, tetradecanoic acid accounts for 0.4-1%, and palmitinic acid accounts for 12-18%, stearic acid accounts for 1-3%, C20-C22 saturated fatty acid accounts for 1%, and oleic acid accounts for 40-50%, and linolic acid accounts for 29-42%, linolenic acid accounts for less than 1%, and Zoomeric acid accounts for 0.2-0.4%.Rice pollard oil is also containing vitamin-E, squalene, active lipase, Sitosterol, campesterol, Stigmasterol and three kinds of ferulic acid ester antioxidants and solid plant constituent etc., the ferulic acid ester that content accounts for 2% ~ 3% is a kind of excellent antioxidant, three kinds of ferulic acid ester antioxidants serve vital role for Rice pollard oil antioxidative stabilizer, and itself also have the effect of adjustment human body brain function, to vascular headache, autonomic nervous dysfunction etc. have certain preventive and therapeutic effect.Rice pollard oil, after refining, also can be used as the raw material of medicine industry, is mainly used to do pharmaceutical base and stablizer.Unsaturated fatty acids is essential fatty acid, but human body self can not synthesize, and must absorb from the external world.The linolic acid that in Rice pollard oil, content is very high can change cholesterol and distribute in vivo, reduces cholesterol and too much deposits on vessel wall, can be used for the control of hyperlipidemia and atherosclerosis.The vitamin-E contained in Rice pollard oil, has antisterility, protects muscle and prevent and treat the effects such as nutritional anemia.It has strong anti-oxidation effect, can protect unsaturated fatty acids not oxidized one-tenth fat brown pigments, thus safeguard the complete function of cell, this be other plant oil incomparable; Squalene to high ypotension, anaemia, diabetes, liver cirrhosis, tuberculosis, rheumatosis, the diseases such as neurodynia have certain preventive effect; Because it has good infiltration, diffusion sterilization and antioxygenation, become the excellent material of makeup; Utilize the makeup that Rice pollard oil is produced, strong with the avidity of skin, and good stability, not oxidizable and layering is excellent makeup fat.Be the precursor of several sterols of needed by human because of it, cell membrane has special role, and this just determines the certainty that Rice pollard oil becomes brain tonic and intelligence development functions food.Sterol contained by Rice pollard oil is relevant with people's hormone in vivo, can regulate organism metabolism, effective to muscular dystrophy, and it has anti-inflammatory again simultaneously, antitoxin, antishock and anti-allergic effects; Solid plant constituent in Rice pollard oil mainly contains phytic acid, plays an important role to the anti-corrosive fresh-keeping of grease, and its raffinate is used for medicine industry and can be made into phytic acid sodium salt and bismuth salt, is used for the treatment of gastritis, duodenal ulcer and diarrhoea etc.
Rice pollard oil has extraordinary antioxidative stabilizer, and this is mainly because it contains the natural antioxidants of complicated component.Except containing (average total tocopherol content is 400mg/kg oil) except natural tocopherol in oil, also containing squalene and multiple ferulic acid ester, they all contribute to anti-oxidant.Rice bran needs timely liquefaction, and oil yield is high, and the acid number of grease is low, of light color.Containing more lipolytic enzyme in rice bran, when rice bran does not depart from the grain of rice, as long as rice does not go mouldy, now the activity of lipolytic enzyme is very little, and the unlikely rice bran that causes goes bad.When rice bran departs within brown rice several hours, lipolytic enzyme just shows great activity, decomposes rapidly the grease in rice bran and a large amount of lipid acid that dissociates, causes acid number to increase substantially.The necessary refining in time of hair oil extracted from rice husks, to remove mechanical impurity, lipolytic enzyme, microorganism and free fatty acids etc.
The self-characteristic of hair Rice pollard oil determines refining of crude rice bran oil process distinction in other oil product.The acid number of hair Rice pollard oil is higher, and generally at 8-20mgKOH/g, some ageing Rice pollard oil acid number is up to 30 more than mgKOH/g, and secondly higher containing wax, be generally 2-5%, color and luster is higher, decolouring difficulty.Traditional alkali-refining process alkali refining loss is large, and refining cost is high.
Refined rice bran oil color and luster is yellowish, and containing more than 80% unsaturated fatty acids in oil, its mid-oleic is very high, and therefore the digestibility of human body to Rice pollard oil is higher.Rice pollard oil has the function reducing human body blood fat; A kind of good food oils.Because refining of crude rice bran oil cost compare is high, oil yield is low, therefore at present can only in a large number for the manufacture of soap, lubricating oil, lipid acid to Rice pollard oil.Utilize physical deacidification method refined rice bran oil, just actively promote.In Rice bran crude oil containing have an appointment 6% wax, wax hydrolysis after can produce triacontanol price quote (being commonly called as " myricyl alcohol ").Containing the triacontanol price quote of 10% in chaff wax.Triacontanol price quote is a kind of plant growth hormones, and the aqueous solution (1 gram " myricyl alcohol " can spray 20-200 mu farm crop) of 0.1-1.0PPm can make the volume increase 10%-40% such as paddy rice, wheat, corn, tomato and duckweed.
Thiaminogen is mainly present in mao oil extracted from rice husks and oil foot thereof, the content of the thiaminogen in rice bran layer is 0.3-0.5%, rice bran thiaminogen when heating squeezing is dissolved in oil, in general hair oil extracted from rice husks, the content of thiaminogen is about 2-3%, is 100 tons of recyclable 1 ton of thiaminogen of hair oil extracted from rice husks according to current state of the art of producing thiaminogen.Thiaminogen system forulic acid and plant sterol in conjunction with fat, it from Rice pollard oil, can extract in plumule wet goods cereal grease, its outward appearance be white to off-white color crystalline powder, tasteless, have special fragrance, under heating, dissolve in various grease, water insoluble.
For the refining of Rice pollard oil, mainly consider to obtain the high refining oil of quality and acid byproduct fatty, compared with the content of the material such as thiaminogen, tocopherol of reservation contained by it of limits.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of method of refining of Rice pollard oil, method of the present invention adopts enzyme to come unstuck and depickling to hair oil extracted from rice husks, gentleer relative to chemical process, and can not bring environmental pollution.
The present invention is realized by following technical scheme:
The method of refining of Rice pollard oil, comprise following step:
Rice bran crude oil is adopted enzymatic degumming, then adopts enzyme process depickling, decolouring, obtains rice finished product oil extracted from rice husks.
The enzyme adopted in above-mentioned degumming step is amylase, Phospholipid hydrolase.
The enzyme adopted in above-mentioned depickling step is lipase.
The method of refining of Rice pollard oil specifically comprises following step:
Come unstuck: Rice bran crude oil is inputted reactor, be preheated to 40-50 DEG C, then add the water of 40-50 DEG C, above-mentioned Rice bran crude oil and the weight ratio of water are 1:0.2-2.0; Add amylase enzymolysis 0.5-2h; Above-mentioned diastatic add-on accounts for the heavy 0.01-0.04% of Rice bran crude oil;
Add Phospholipid hydrolase enzymolysis 0.5-2h again; Above-mentioned diastatic add-on accounts for the heavy 0.01-0.02% of Rice bran crude oil;
Add temperature to be 90-95 DEG C, to account for the water of oil mass 6-10% with the rotating speed of 20-40rmp stirring 10-20 r/min, centrifugation after standing 10-15min, the rotating speed of above-mentioned centrifugation is 200-1500r/min;
Depickling: the supernatant liquid of centrifugation is taken out, adds glycerine, above-mentioned glycerine accounts for the 0.2-4% of upper liquid body weight, is heated to 40-50 DEG C, adds lipase hydrolysis, and the add-on of above-mentioned lipase is the 0.01-0.04% of upper liquid body weight; Enzymolysis 0.5-2h; Add that temperature is 90-95 DEG C, the water that accounts for supernatant liquid weight 6-10% again, stir 10-20 r/min with the rotating speed of 20-40rmp, leave standstill centrifugation after 10-15min, the rotating speed of above-mentioned centrifugation is 200-1500r/min;
Decolouring: through carrying out desolventing technology by crossing de-acid-treated oil product.
In above-mentioned decolorization process, adopt carclazyte, its concrete steps are, the oil product after depickling process is heated to 70-110 DEG C, enters bleaching tower, oil product mixes with carclazyte, and regulate the vacuum tightness in bleaching tower to be 0.09Mpa, bleaching time is 0.4-1h.
After above-mentioned decolorization process, oil product is again through deodorization process, in above-mentioned deodorising step, oil product is delivered to deodorizing tower, the flowing time of oil in deodorizing tower is kept to be 15-20min, deodorization temperature 230-260 DEG C, direct vapour consumption is the 1-3% that oil product is heavy, and vacuum absolute pressure is less than 200Pa, extract deodorised oil out through oil-oil heat exchanger from tower bottom, last condenser is cooled to 35-40 DEG C.
Above-mentioned method also comprises the hydrodewaxing step after deodorising step, in this step, deodorised oil is through plate-type heat exchanger and refrigerating fulid heat exchange, and oil temperature pumps into crystallizer after being down to 15 DEG C, oil product is stirred, the rotating speed stirred is 20-50 r/min, and oil product is slowly down to 8 DEG C and is carried out crystallization under the effect of refrigerating fulid, and crystallization time is 2-4 hour, crystal oil is pressed into maturator, under constant temperature 8 DEG C of conditions, growing the grain 3 hours, filters, obtains pressed oil under the air pressure of 0.6Mpa.
Above-mentioned amylase is α-amylase.
Preferably, the method for refining of Rice pollard oil comprises following step:
Come unstuck: Rice bran crude oil is inputted reactor, be preheated to 45 DEG C, then add the water of 45 DEG C, above-mentioned Rice bran crude oil and the weight ratio of water are 1:0.4; Add amylase enzymolysis 0.6h; Above-mentioned diastatic add-on account for Rice bran crude oil heavy 0.02%;
Add Phospholipid hydrolase enzymolysis 0.6h again; Above-mentioned diastatic add-on account for Rice bran crude oil heavy 0.015%;
Add temperature to be 92 DEG C, to account for the water of oil mass 8% and stir 15 r/min with the rotating speed of 30rmp, leave standstill centrifugation after 12min, the rotating speed of above-mentioned centrifugation is 300r/min;
Depickling: the supernatant liquid of centrifugation is taken out, adds glycerine, above-mentioned glycerine accounts for 0.3% of upper liquid body weight, is heated to 45 DEG C, adds lipase hydrolysis, and the add-on of above-mentioned lipase is 0.02% of upper liquid body weight; Enzymolysis 0.8h; Add that temperature is 92 DEG C, the water that accounts for supernatant liquid weight 8% again, stir 15 r/min with the rotating speed of 30rmp, leave standstill centrifugation after 12min, the rotating speed of above-mentioned centrifugation is 300r/min;
Decolouring: through carrying out desolventing technology by crossing de-acid-treated oil product, in above-mentioned decolorization process, adopt carclazyte, its concrete steps are, oil product after depickling process is heated to 85 DEG C, enters bleaching tower, oil product mixes with carclazyte, regulate the vacuum tightness in bleaching tower to be 0.09Mpa, bleaching time is 0.6h.
Deodorization: after decolorization process, oil product is again through deodorization process, oil product is delivered to deodorizing tower, the flowing time of oil in deodorizing tower is kept to be 18min, deodorization temperature 230-260 DEG C, direct vapour consumption be oil product heavy 2%, vacuum absolute pressure is less than 200Pa, and extract deodorised oil out through oil-oil heat exchanger from tower bottom, last condenser is cooled to 37 DEG C.
Dewaxing: in this step, deodorised oil is through plate-type heat exchanger and refrigerating fulid heat exchange, oil temperature pumps into crystallizer after being down to 15 DEG C, stirs oil product, and the rotating speed of stirring is 30 r/min, oil product is slowly down to 8 DEG C and is carried out crystallization under the effect of refrigerating fulid, crystallization time is 3 hours, and crystal oil is pressed into maturator, growing the grain 3 hours under constant temperature 8 DEG C of conditions, filter under the air pressure of 0.6Mpa, obtain pressed oil.
Beneficial effect of the present invention is, adopts method of the present invention to refining of crude rice bran oil, utilizes biological enzyme to the fractions enzymolysis in hair oil extracted from rice husks, improves the quality of Rice pollard oil, compared with the content saving thiaminogen in oil product, tocopherol isoreactivity material of limits.Method action condition of the present invention is gentle, need not process follow-up organic solvent, can not to environment.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described, so that those skilled in the art more understands the present invention, but does not therefore limit the present invention.
Embodiment 1
The method of refining of Rice pollard oil comprises following step:
Come unstuck: Rice bran crude oil is inputted reactor, be preheated to 45 DEG C, then add the water of 45 DEG C, above-mentioned Rice bran crude oil and the weight ratio of water are 1:0.4; Add amylase enzymolysis 0.6h; The add-on of above-mentioned α-amylase account for Rice bran crude oil heavy 0.02%; The acid value of Rice bran crude oil is 7.6KOHmg/g;
Add Phospholipid hydrolase enzymolysis 0.6h again; The add-on of above-mentioned α-amylase account for Rice bran crude oil heavy 0.015%;
Add temperature to be 92 DEG C, to account for the water of oil mass 8% and stir 15 r/min with the rotating speed of 30rmp, leave standstill centrifugation after 12min, the rotating speed of above-mentioned centrifugation is 300r/min;
Depickling: the supernatant liquid of centrifugation is taken out, adds glycerine, above-mentioned glycerine accounts for 0.3% of upper liquid body weight, is heated to 45 DEG C, adds lipase hydrolysis, and the add-on of above-mentioned lipase is 0.02% of upper liquid body weight; Enzymolysis 0.8h; Add that temperature is 92 DEG C, the water that accounts for supernatant liquid weight 8% again, stir 15 r/min with the rotating speed of 30rmp, leave standstill centrifugation after 12min, the rotating speed of above-mentioned centrifugation is 300r/min;
Decolouring: through carrying out desolventing technology by crossing de-acid-treated oil product, in above-mentioned decolorization process, adopt carclazyte, its concrete steps are, oil product after depickling process is heated to 85 DEG C, enters bleaching tower, oil product mixes with carclazyte, regulate the vacuum tightness in bleaching tower to be 0.09Mpa, bleaching time is 0.6h.
Deodorization: after decolorization process, oil product is again through deodorization process, oil product is delivered to deodorizing tower, the flowing time of oil in deodorizing tower is kept to be 18min, deodorization temperature about 240 DEG C, direct vapour consumption be oil product heavy 2%, vacuum absolute pressure is less than 200Pa, and extract deodorised oil out through oil-oil heat exchanger from tower bottom, last condenser is cooled to 37 DEG C.
Dewaxing: in this step, deodorised oil is through plate-type heat exchanger and refrigerating fulid heat exchange, oil temperature pumps into crystallizer after being down to 15 DEG C, stirs oil product, and the rotating speed of stirring is 30 r/min, oil product is slowly down to 8 DEG C and is carried out crystallization under the effect of refrigerating fulid, crystallization time is 3 hours, and crystal oil is pressed into maturator, growing the grain 3 hours under constant temperature 8 DEG C of conditions, filter under the air pressure of 0.6Mpa, obtain pressed oil.
After testing, the acid value of the Rice pollard oil that aforesaid method obtains is 1.3KOHmg/g, and thiaminogen content is 15200ppm.
Embodiment 2
The method of refining of Rice pollard oil comprises following step:
Come unstuck: Rice bran crude oil is inputted reactor, be preheated to 40 DEG C, then add the water of 40 DEG C, above-mentioned Rice bran crude oil and the weight ratio of water are 1:0.3; Add amylase enzymolysis 0.5h; The add-on of above-mentioned α-amylase account for Rice bran crude oil heavy 0.01%; The acid value of Rice bran crude oil is 7.4KOHmg/g;
Add Phospholipid hydrolase enzymolysis 0.5h again; The add-on of above-mentioned α-amylase account for Rice bran crude oil heavy 0.01%;
Add temperature to be 92 DEG C, to account for the water of oil mass 8% and stir 15 r/min with the rotating speed of 30rmp, leave standstill centrifugation after 12min, the rotating speed of above-mentioned centrifugation is 200r/min;
Depickling: the supernatant liquid of centrifugation is taken out, adds glycerine, above-mentioned glycerine accounts for 0.2% of upper liquid body weight, is heated to 45 DEG C, adds lipase hydrolysis, and the add-on of above-mentioned lipase is 0.01% of upper liquid body weight; Enzymolysis 0.8h; Add that temperature is 92 DEG C, the water that accounts for supernatant liquid weight 6% again, stir 10r/min with the rotating speed of 20rmp, leave standstill centrifugation after 10min, the rotating speed of above-mentioned centrifugation is 200r/min;
Decolouring: through carrying out desolventing technology by crossing de-acid-treated oil product, in above-mentioned decolorization process, adopt carclazyte, its concrete steps are, oil product after depickling process is heated to 85 DEG C, enters bleaching tower, oil product mixes with carclazyte, regulate the vacuum tightness in bleaching tower to be 0.09Mpa, bleaching time is 0.5h.
Deodorization: after decolorization process, oil product is again through deodorization process, oil product is delivered to deodorizing tower, the flowing time of oil in deodorizing tower is kept to be 18min, deodorization temperature about 230 DEG C, direct vapour consumption be oil product heavy 2%, vacuum absolute pressure is less than 200Pa, and extract deodorised oil out through oil-oil heat exchanger from tower bottom, last condenser is cooled to 37 DEG C.
Dewaxing: in this step, deodorised oil is through plate-type heat exchanger and refrigerating fulid heat exchange, oil temperature pumps into crystallizer after being down to 15 DEG C, stirs oil product, and the rotating speed of stirring is 30 r/min, oil product is slowly down to 8 DEG C and is carried out crystallization under the effect of refrigerating fulid, crystallization time is 3 hours, and crystal oil is pressed into maturator, growing the grain 3 hours under constant temperature 8 DEG C of conditions, filter under the air pressure of 0.6Mpa, obtain pressed oil.
After testing, the acid value of the Rice pollard oil that aforesaid method obtains is 1.5KOHmg/g, and thiaminogen content is 14900ppm.
Embodiment 3
The method of refining of Rice pollard oil comprises following step:
Come unstuck: Rice bran crude oil is inputted reactor, be preheated to 50 DEG C, then add the water of 50 DEG C, above-mentioned Rice bran crude oil and the weight ratio of water are 1:0.5; Add amylase enzymolysis 0.8h; The add-on of above-mentioned α-amylase account for Rice bran crude oil heavy 0.02%; The acid value of Rice bran crude oil is 7.5KOHmg/g;
Add Phospholipid hydrolase enzymolysis 0.8h again; The add-on of above-mentioned α-amylase account for Rice bran crude oil heavy 0.015%;
Add temperature to be 92 DEG C, to account for the water of oil mass 8% and stir 15 r/min with the rotating speed of 30rmp, leave standstill centrifugation after 12min, the rotating speed of above-mentioned centrifugation is 300r/min;
Depickling: the supernatant liquid of centrifugation is taken out, adds glycerine, above-mentioned glycerine accounts for 0.3% of upper liquid body weight, is heated to 45 DEG C, adds lipase hydrolysis, and the add-on of above-mentioned lipase is 0.02% of upper liquid body weight; Enzymolysis 0.8h; Add that temperature is 92 DEG C, the water that accounts for supernatant liquid weight 8% again, stir 15 r/min with the rotating speed of 30rmp, leave standstill centrifugation after 12min, the rotating speed of above-mentioned centrifugation is 400r/min;
Decolouring: through carrying out desolventing technology by crossing de-acid-treated oil product, in above-mentioned decolorization process, adopt carclazyte, its concrete steps are, oil product after depickling process is heated to 90 DEG C, enters bleaching tower, oil product mixes with carclazyte, regulate the vacuum tightness in bleaching tower to be 0.09Mpa, bleaching time is 0.8h.
Deodorization: after decolorization process, oil product is again through deodorization process, oil product is delivered to deodorizing tower, the flowing time of oil in deodorizing tower is kept to be 18min, deodorization temperature about 260 DEG C, direct vapour consumption be oil product heavy 2%, vacuum absolute pressure is less than 200Pa, and extract deodorised oil out through oil-oil heat exchanger from tower bottom, last condenser is cooled to 37 DEG C.
Dewaxing: in this step, deodorised oil is through plate-type heat exchanger and refrigerating fulid heat exchange, oil temperature pumps into crystallizer after being down to 15 DEG C, stirs oil product, and the rotating speed of stirring is 30 r/min, oil product is slowly down to 8 DEG C and is carried out crystallization under the effect of refrigerating fulid, crystallization time is 3 hours, and crystal oil is pressed into maturator, growing the grain 3 hours under constant temperature 8 DEG C of conditions, filter under the air pressure of 0.6Mpa, obtain pressed oil.
After testing, the acid value of the Rice pollard oil that aforesaid method obtains is 1.4KOHmg/g, and thiaminogen content is 15100ppm.
Claims (9)
1. the method for refining of Rice pollard oil, comprises following step:
Rice bran crude oil is adopted enzymatic degumming, then adopts enzyme process depickling, decolouring, obtains rice finished product oil extracted from rice husks.
2. the method for refining of Rice pollard oil as claimed in claim 1, it is characterized in that, the enzyme adopted in described degumming step is amylase, Phospholipid hydrolase.
3. the method for refining of Rice pollard oil as claimed in claim 1, it is characterized in that, the enzyme adopted in described depickling step is lipase.
4. the method for refining of Rice pollard oil as claimed in claim 1, it is characterized in that, the refining of described Rice pollard oil specifically comprises following step:
Come unstuck: Rice bran crude oil is inputted reactor, be preheated to 40-50 DEG C, then add the water of 40-50 DEG C, described Rice bran crude oil and the weight ratio of water are 1:0.2-2.0; Add amylase enzymolysis 0.5-2h; Described diastatic add-on accounts for the heavy 0.01-0.04% of Rice bran crude oil;
Add Phospholipid hydrolase enzymolysis 0.5-2h again; Described diastatic add-on accounts for the heavy 0.01-0.02% of Rice bran crude oil;
Add temperature to be 90-95 DEG C, to account for the water of oil mass 6-10% with the rotating speed of 20-40rmp stirring 10-20 r/min, centrifugation after standing 10-15min, the rotating speed of described centrifugation is 200-1500r/min;
Depickling: the supernatant liquid of centrifugation is taken out, adds glycerine, described glycerine accounts for the 0.2-4% of upper liquid body weight, is heated to 40-50 DEG C, adds lipase hydrolysis, and the add-on of described lipase is the 0.01-0.04% of upper liquid body weight; Enzymolysis 0.5-2h; Add that temperature is 90-95 DEG C, the water that accounts for supernatant liquid weight 6-10% again, stir 10-20 r/min with the rotating speed of 20-40rmp, leave standstill centrifugation after 10-15min, the rotating speed of described centrifugation is 200-1500r/min;
Decolouring: through carrying out desolventing technology by crossing de-acid-treated oil product.
5. the method for refining of Rice pollard oil as claimed in claim 1, it is characterized in that, in described decolorization process, adopt carclazyte, its concrete steps are, the oil product after depickling process is heated to 70-110 DEG C, enter bleaching tower, oil product mixes with carclazyte, and regulate the vacuum tightness in bleaching tower to be 0.09Mpa, bleaching time is 0.4-1h.
6. the method for refining of Rice pollard oil as claimed in claim 1, it is characterized in that, after described decolorization process, oil product is again through deodorization process, in described deodorising step, oil product is delivered to deodorizing tower, the flowing time of oil in deodorizing tower is kept to be 15-20min, deodorization temperature 230-260 DEG C, direct vapour consumption is the 1-3% that oil product is heavy, and vacuum absolute pressure is less than 200Pa, extract deodorised oil out through oil-oil heat exchanger from tower bottom, last condenser is cooled to 35-40 DEG C.
7. the method for refining of Rice pollard oil as claimed in claim 1, it is characterized in that, described method also comprises the hydrodewaxing step after deodorising step, in this step, deodorised oil is through plate-type heat exchanger and refrigerating fulid heat exchange, oil temperature pumps into crystallizer after being down to 15 DEG C, oil product is stirred, the rotating speed stirred is 20-50 r/min, and oil product is slowly down to 8 DEG C and is carried out crystallization under the effect of refrigerating fulid, and crystallization time is 2-4 hour, crystal oil is pressed into maturator, under constant temperature 8 DEG C of conditions, growing the grain 3 hours, filters, obtains pressed oil under the air pressure of 0.6Mpa.
8. the method for refining of Rice pollard oil as claimed in claim 1, it is characterized in that, described amylase is α-amylase.
9. the method for refining of Rice pollard oil as claimed in claim 1, it is characterized in that, described method comprises following step:
Come unstuck: Rice bran crude oil is inputted reactor, be preheated to 45 DEG C, then add the water of 45 DEG C, described Rice bran crude oil and the weight ratio of water are 1:0.4; Add amylase enzymolysis 0.6h; Described diastatic add-on account for Rice bran crude oil heavy 0.02%;
Add Phospholipid hydrolase enzymolysis 0.6h again; Described diastatic add-on account for Rice bran crude oil heavy 0.015%;
Add temperature to be 92 DEG C, to account for the water of oil mass 8% and stir 15 r/min with the rotating speed of 30rmp, leave standstill centrifugation after 12min, the rotating speed of described centrifugation is 300r/min;
Depickling: the supernatant liquid of centrifugation is taken out, adds glycerine, described glycerine accounts for 0.3% of upper liquid body weight, is heated to 45 DEG C, adds lipase hydrolysis, and the add-on of described lipase is 0.02% of upper liquid body weight; Enzymolysis 0.8h; Add that temperature is 92 DEG C, the water that accounts for supernatant liquid weight 8% again, stir 15 r/min with the rotating speed of 30rmp, leave standstill centrifugation after 12min, the rotating speed of described centrifugation is 300r/min;
Decolouring: through carrying out desolventing technology by crossing de-acid-treated oil product, in described decolorization process, adopt carclazyte, its concrete steps are, oil product after depickling process is heated to 85 DEG C, enters bleaching tower, oil product mixes with carclazyte, regulate the vacuum tightness in bleaching tower to be 0.09Mpa, bleaching time is 0.6h;
Deodorization: after decolorization process, oil product is again through deodorization process, oil product is delivered to deodorizing tower, the flowing time of oil in deodorizing tower is kept to be 18min, deodorization temperature 230-260 DEG C, direct vapour consumption be oil product heavy 2%, vacuum absolute pressure is less than 200Pa, and extract deodorised oil out through oil-oil heat exchanger from tower bottom, last condenser is cooled to 37 DEG C;
Dewaxing: in this step, deodorised oil is through plate-type heat exchanger and refrigerating fulid heat exchange, oil temperature pumps into crystallizer after being down to 15 DEG C, stirs oil product, and the rotating speed of stirring is 30 r/min, oil product is slowly down to 8 DEG C and is carried out crystallization under the effect of refrigerating fulid, crystallization time is 3 hours, and crystal oil is pressed into maturator, growing the grain 3 hours under constant temperature 8 DEG C of conditions, filter under the air pressure of 0.6Mpa, obtain pressed oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510074429.XA CN104673490B (en) | 2015-02-12 | 2015-02-12 | The method of refining of rice bran oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510074429.XA CN104673490B (en) | 2015-02-12 | 2015-02-12 | The method of refining of rice bran oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104673490A true CN104673490A (en) | 2015-06-03 |
| CN104673490B CN104673490B (en) | 2017-12-08 |
Family
ID=53309090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510074429.XA Active CN104673490B (en) | 2015-02-12 | 2015-02-12 | The method of refining of rice bran oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104673490B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132150A (en) * | 2015-07-31 | 2015-12-09 | 崇州市白头甘泉工业油脂厂 | Refining technology of rice bran oil |
| CN105154219A (en) * | 2015-07-31 | 2015-12-16 | 崇州市白头甘泉工业油脂厂 | Rice bran oil refining technology |
| CN105419937A (en) * | 2015-11-20 | 2016-03-23 | 齐鲁工业大学 | Enzymic deacidification method for wheatgerm oil |
| 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 |
| CN112251282A (en) * | 2020-09-08 | 2021-01-22 | 菏泽中禾健元生物科技有限公司 | 9C production method of functional vegetable oil |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6307077B1 (en) * | 1999-08-09 | 2001-10-23 | Robert Michael Quear | Method for purifying vegetable oil obtained by mechanical extraction |
| CN102453607A (en) * | 2010-10-22 | 2012-05-16 | 徐传仁 | Rice bran oil refining method |
| CN102585998A (en) * | 2012-03-14 | 2012-07-18 | 湖南省中科农业有限公司 | Preparation method of rice bran oil |
| CN103740462A (en) * | 2014-01-10 | 2014-04-23 | 陈汉卿 | Oil refining method |
-
2015
- 2015-02-12 CN CN201510074429.XA patent/CN104673490B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6307077B1 (en) * | 1999-08-09 | 2001-10-23 | Robert Michael Quear | Method for purifying vegetable oil obtained by mechanical extraction |
| CN102453607A (en) * | 2010-10-22 | 2012-05-16 | 徐传仁 | Rice bran oil refining method |
| CN102585998A (en) * | 2012-03-14 | 2012-07-18 | 湖南省中科农业有限公司 | Preparation method of rice bran oil |
| CN103740462A (en) * | 2014-01-10 | 2014-04-23 | 陈汉卿 | Oil refining method |
Non-Patent Citations (2)
| Title |
|---|
| 杨博，等: "米糠油酶法酯化脱酸的研究", 《中国油脂》 * |
| 王永华，杨博，等: "新型磷脂酶用于米糠油酶法脱胶的研究", 《中国油脂》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132150A (en) * | 2015-07-31 | 2015-12-09 | 崇州市白头甘泉工业油脂厂 | Refining technology of rice bran oil |
| CN105154219A (en) * | 2015-07-31 | 2015-12-16 | 崇州市白头甘泉工业油脂厂 | Rice bran oil refining technology |
| CN105419937A (en) * | 2015-11-20 | 2016-03-23 | 齐鲁工业大学 | Enzymic deacidification method for wheatgerm oil |
| 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 |
| CN112251282A (en) * | 2020-09-08 | 2021-01-22 | 菏泽中禾健元生物科技有限公司 | 9C production method of functional vegetable oil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104673490B (en) | 2017-12-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101156679B (en) | Rice bran nutrition stock solution and its preparation method | |
| TWI352122B (en) | A crude oil, a refined oil, and a general food and | |
| CN100562254C (en) | A kind of plant blend oil | |
| CN104673490B (en) | The method of refining of rice bran oil | |
| CN101690526A (en) | Blend oil with proportional fatty acid prepared by walnut oil and other plant oils | |
| CN103444911A (en) | Medicinal and edible health care blending oil | |
| CN102894107A (en) | Nutritional walnut oil and production process thereof | |
| CN106108023B (en) | Special diet | |
| CN105112464B (en) | Structure grease and special diet comprising the Structure grease | |
| CN101700081B (en) | Method for preparing novel blended oil containing rose oil | |
| CN102187973B (en) | Method for producing oat and fiberflax (flax) nutritional meal | |
| CN1899052A (en) | Method for preparing milk powder for regulating blood fat | |
| CN102934701A (en) | Gingko nutritional oil and production method thereof | |
| CN103484349B (en) | Purely naturally fermented table vinegar and preparation method thereof | |
| CN101828604A (en) | Corn oil rich in oryzanol and preparation method thereof | |
| CN107581615A (en) | Special diet containing Structure grease | |
| CN101099562A (en) | Omega-3 unsaturated fatty acids appetizer oil and producing method and application thereof | |
| CN104366437B (en) | Be rich in sauce and preparation method thereof of going with rice or bread of n-3 polyunsaturated fatty acid | |
| CN1479578A (en) | Anticholesterolemic edible oil | |
| CN101849585A (en) | Functional nutrient plant blend oil and preparation method thereof | |
| CN105154223A (en) | Rice bran oil | |
| CN109536270A (en) | The extracting method of grease and its application in terms of food in quinoa wheat bran | |
| CN101524100A (en) | Edible oil and preparation method thereof | |
| CN108812934A (en) | A kind of high unsaturated fatty acid ready-mixed oil and preparation method thereof | |
| CN104109623B (en) | Fibert edible vinegar and preparation 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 | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 256209 private science and Technology Park, Han Zhen Town, Binzhou, Zouping, Shandong Applicant after: Shandong Jian Yuan oil technology company limited Address before: 256209 private science and Technology Park, Han Zhen Town, Binzhou, Zouping, Shandong Applicant before: ZOUPING JIANYUAN GREASE CO., LTD. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: ZOUPING JIANYUAN GREASE CO., LTD. TO: SHANDONG JIANYUAN OIL TECHNOLOGY CO., LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |