CN101275101A - Low-temperature cold pressing method for linseed oil - Google Patents

Low-temperature cold pressing method for linseed oil Download PDF

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Publication number
CN101275101A
CN101275101A CNA2007100912642A CN200710091264A CN101275101A CN 101275101 A CN101275101 A CN 101275101A CN A2007100912642 A CNA2007100912642 A CN A2007100912642A CN 200710091264 A CN200710091264 A CN 200710091264A CN 101275101 A CN101275101 A CN 101275101A
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oil
linseed oil
linseed
temperature
degumming agent
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刘洪举
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Abstract

The present invention provides a low temperature cold pressed method of a linseed oil, the main process includes: directly processing disposable press after cleaning, quenching and tempering the linseed raw material, the press oil yield is less than 80 DEG C. The wool oil refining process adopts drying method and physical absorption method, completely processing under the normal temperature. The preparing method wholly retains all kinds of nutritious components of the linseed oil, linseed protein, flaxseed gum and wood phenol components in the oil cake are not damaged, further developed and utilized. The oil cake after pressed is directly utilized as a food nutritious additive composition.

Description

A kind of low-temperature cold pressing production method of linseed oil
Technical field
The present invention relates to a kind of production method of linseed oil, refer in particular to the low-temperature cold pressing production method of linseed oil.
Background technology
Flax (being commonly called as flax) is the traditional edible oil kind in NORTHWEST CHINA area, also is one of rare several oil crops of being rich in alpha-linolenic acid.Linseed oil (flaxseed) oil-containing 38%-42%, wherein alpha-linolenic acid content reaches about 57%, is typical ω-3 class edible oil.Simultaneously, linseed oil also contains multiple nutrients compositions such as protein, edible gum, VITAMIN, lignan, has very big value of exploiting and utilizing.
Alpha-linolenic acid is the parent of ω-3 series fatty acid, has the plurality of health care functions to human body, is a class the most useful to human body in the lipid acid, is described as the life core substance.Because human body is indispensable, can not synthesize again, can only replenish by food, so alpha-linolenic acid is an essential fatty acid.Experimental results demonstrate that both at home and abroad human body lacks alpha-linolenic acid and can cause multiple disease to take place.The U.S. food medication management council (FDA) determines that linseed oil is the heath food that is rich in alpha-linolenic acid, and confirm its have reducing blood-fat and hypotensive, strengthen autoimmunization, prevent diabetes, strong refreshing brain tonic, strengthen 13 functions such as attention and memory.1993, United Nations's health organization and world food were organized in " about promoting the suggestion that replenishes alpha-linolenic acid in the daily ration " and emphasize---in view of generally absorbing insufficient situation, the special alpha-linolenic acid that replenishes of suggestion in the importance of alpha-linolenic acid and the human body.At present, cold pressed flax seed oil is developed country such as fashionable America and Europe, is described as top functional type edible oil.
In China, linseed oil is as the edible oil history of existing centuries, but the production method of traditional linseed oil (siritch) and technology havoc the nutritive value of product, the nourishing function of linseed oil is greatly reduced.
The production of tradition linseed oil (siritch) is the same with other various edible fat production, generally adopts fire to fry the refining mode (top temperature is near 270 ℃) of (or steam and fry) hot moulding technology, high temperature even chemistry.This high-temperature technology to being that the vegetables oil influence of major ingredient is little with the linolic acid, but can make the nutritive ingredient generation havocs such as alpha-linolenic acid in the linseed oil.
Specifically details are as follows:
1, cause alpha-linolenic acid generation oxidation or polyreaction, content reduces, and biological activity reduces.Contain the alpha-linolenic acid about 57% in the natural linseed oil, but after the refining mode through high temperature and even chemistry, content is reduced to below 54%.In fact, common process makes the character of alpha-linolenic acid that change take place, and the quality guaranteed period of product was extended to more than 3 years by less than in 1 year.
2, the VITAMIN composition loses comprehensively.Contain above vitamin-E of 80mg/100g and abundant carotenoid in the natural linseed oil, but vitamin-E is reduced to below the 5mg/100g in the refining linseed oil, carotenoid is because of decolouring, deodorization complete loss almost.
3, cause protein denaturation.High temperature makes the flax protein sex change, can only be as animal-feed, and its marketable value only is 1/3rd of an edible protein.
4, cause the flaxseed gum viscosity to reduce.With the flax glue that the hot moulding grouts are produced, viscosity is reduced to 1/10th of original viscosity, and it is used greatly and devalues.So studying a kind of linseed oil production method that overcomes above-mentioned shortcoming is that market outlook and necessary are arranged very much.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of low-temperature cold pressing production method of linseed oil, this production method adopts low-temperature cold pressing and normal temperature physical adsorption purified production method and technology, it can keep the natural nutrient component of linseed oil comprehensively, for the various nutritive value compositions in the exploitation linseed oil create conditions.
The technical problem to be solved in the present invention is finished by following scheme: a kind of low-temperature cold pressing production method of linseed oil, it is characterized in that: clear up the linseed oil raw material modified, moisture controlled is at 8%-10%, with oil press zhai directly squeezing at ambient temperature, oil outlet temperature is controlled at below 80 ℃, cake output end goes out the cake temperature and is controlled at below 105 ℃, add wilkinite, the degumming agent that diatomite is formed comes unstuck with physical adsorption way, bentonitic weight accounts for 40-60% in the degumming agent, diatomaceous weight accounts for 6040%, the degumming agent addition accounts for the 0.3%-3% of crude oil total amount, the process of coming unstuck is carried out at normal temperatures, does not add water and does not heat, and adds behind the degumming agent stirring velocity thorough mixing with 30 rev/mins, filter then, again with alkaline calcium bentonite as de-acidying agent, utilize solid absorption to be used for depickling, anhydrous mode is adopted in depickling, alkaline calcium bentonite accounts for the 0-4% of crude oil total amount, stirred 100-120 minute with 30 rev/mins speed, filter then, take off the cured finished product that is through freezing and crystallizing again.
Owing to be rich in various active nutritive ingredients such as alpha-linolenic acid, VITAMIN in the finished product cold pressed flax seed oil, very easily oxidation destroys, so finished product takes to charge in vial lucifuge packing, the packing bottle sfgd.s such as nitrogen protection, the preceding freezing preservation of product export.This production method does not use solvent, carclazyte etc. easily to stay the material of peculiar smell, and product can keep natural fragrance, so do not need deodorization.This production method is not decoloured for the natural nutrient component in the protection oil yet.
Effect of the present invention and advantage:
1, the natural nutrient component that has comprehensively kept linseed oil.Multiparity product check department proves the result that product detects, and with West Inner Mongolia raw material that is produced from the district, adopts the cold pressed flax seed oil alpha-linolenic acid content of present method and support equipment production to reach 56.76%, and unsaturated fatty acid content is greater than 90%.Product contains vitamin-E 83mg/100g, be the edible linseed oil produced of general technology 16-20 doubly.Product color is natural golden yellow, is made of natural nutrition pigments such as carotenoid.Quality product is leading domestic and reach international standards.
2, flax protein in the grouts and flax glue composition do not destroy, for further developing the condition of having created.
3, the grouts after the oil expression can be used as the food nutrition added ingredients and directly utilize.
4, production process need not heat, and does not consume other energy except that the running device power consumption.
5, production process does not produce any pollutent, and resource is fully exploited.
6, single pressing realizes that cake slag residual oil content is lower than 8%.
Linseed oil low-temperature cold pressing, normal temperature physical adsorption refining production method and technology have been created condition for realizing the linseed oil comprehensive development and utilization, this technology not only can guarantee to produce high-quality edible linseed oil product, and lay the foundation for other nutritive value composition in the full-scale development linseed oil, thereby resource utilization is increased substantially, significant to improving the business economic benefit and developing the local characteristic agricultural.
Description of drawings
Accompanying drawing 1 is the technological process of production figure of invention
Embodiment
Embodiment: in order to guarantee the cold pressed flax seed oil quality, at first strict control linseed oil raw materials quality.Require raw material to clean out, purity reaches more than 99.5%.Raw material can not be wet by water because cross water raw material can go mouldy.Impurity such as Semen Brassicae campestris, bitter mustard can not be contained in the raw material, metal, sandstone energy foreign material can not be contained.Raw material is preferably results then, and old material can not use.
Must be before 10000kg linseed oil raw material goes into to press through modified, raw material moisture is controlled between the 8-10%.Expressing process uses the duplex oil press zhai.Do not carry out the fire stir-fry before raw material goes into to press or steam stir-fry, and directly carry out disposable squeezing at ambient temperature.The highest oil outlet temperature of squeezing is controlled at below 80 ℃.Cake output end goes out the cake temperature and is controlled at below 105 ℃.For reduce crude oil exposure duration in air as far as possible, this production method is not used settler, does not use coagulant aidss such as phosphoric acid, salt solution, and crude oil directly filters through leaf-type filter behind the oil-collecting bucket.Fuel-displaced 2800kg.Add the degumming agent 14kg of wilkinite, diatomite composition, come unstuck with physical adsorption way, wilkinite accounts for 8kg in the degumming agent, diatomite accounts for 6kg.The process of coming unstuck is carried out at normal temperatures, does not add water and does not heat, and adds behind the degumming agent with 30 rev/mins stirring velocity thorough mixing, filters then, adds alkaline calcium bentonite de-acidying agent 70kg again, utilizes solid absorption to be used for depickling, and anhydrous mode is adopted in depickling.Stirred 100 minutes with 30 rev/mins speed, filter then, take off the cured finished product that is through freezing and crystallizing again.
Because adopt the cold press mode to extract oil, the color of oil is nutrition pigment formations such as natural carotenoid, color is golden yellow, and is pure transparent, do not fry the atrament that (or steam and fry) produces because of fire, so do not decolour.
Because refining process all carries out at normal temperatures, do not use carclazyte etc. easily to stay the material of peculiar smell, product can keep natural fragrance, so do not carry out deodorization.
Linseed oil after the depickling adopts the freezing and crystallizing mode to take off cured.Because of cured matter content is low, adopts disposable crystallization, filtering method to reach and take off cured purpose.The linseed oil that takes off after cured promptly becomes qualified cold pressed flax seed oil.Cold pressed flax seed oil adopts the low capacity glass bottle packaging of black glass bottle or band gift box, so that keep in Dark Place.Product charges into pure nitrogen and protects in the packing bottle after can.Send into freezer refrigeration or freezing after the packing of product is finished, dispatch from the factory until production marketing.
The main points of this production technology:
1, oil expression process adopts the low-temperature cold pressing mode, and the highest oil outlet temperature is lower than 80 ℃.
2, all refining process all carry out being lower than under 40 ℃ the normal temperature.
3, the product refining process all adopts dry method and physical adsorption way.

Claims (1)

1. the low-temperature cold pressing production method of a linseed oil, it is characterized in that: clear up the linseed oil raw material modified, moisture controlled is at 8%-10%, with oil press zhai directly squeezing at ambient temperature, oil outlet temperature is controlled at below 80 ℃, cake output end goes out the cake temperature and is controlled at below 105 ℃, add wilkinite, the degumming agent that diatomite is formed comes unstuck with physical adsorption way, bentonitic weight accounts for 40-60% in the degumming agent, diatomaceous weight accounts for 60-40%, the degumming agent addition accounts for the 0.3%-3% of crude oil total amount, the process of coming unstuck is carried out at normal temperatures, does not add water and does not heat, and adds behind the degumming agent stirring velocity thorough mixing with 30 rev/mins, filter then, again with alkaline calcium bentonite as de-acidying agent, utilize solid absorption to be used for depickling, anhydrous mode is adopted in depickling, alkaline calcium bentonite accounts for the 0-4% of crude oil total amount, stirred 100-120 minute with 30 rev/mins speed, filter then, take off the cured finished product that is through freezing and crystallizing again.
CNA2007100912642A 2007-03-28 2007-03-28 Low-temperature cold pressing method for linseed oil Pending CN101275101A (en)

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880596A (en) * 2010-07-13 2010-11-10 中国农业科学院油料作物研究所 A method for low temperature preparation of oil
CN101979484A (en) * 2010-11-05 2011-02-23 中国农业科学院油料作物研究所 Method of solid adsorption and vacuum oil filtration refining pressed linseed oil
CN102429116A (en) * 2011-11-04 2012-05-02 周韵箴 Preparation method of fat for marine fish
CN102894107A (en) * 2011-07-29 2013-01-30 甘肃陇新综合商贸有限公司 Nutritional walnut oil and production process thereof
CN103030705A (en) * 2012-12-20 2013-04-10 中国农业科学院油料作物研究所 Comprehensive flax seed processing method
CN103215118A (en) * 2013-05-13 2013-07-24 宁夏吴忠市国军清真食品有限公司 Cold-pressing method of linseed oil
CN103266011A (en) * 2013-05-07 2013-08-28 刘军 Processing method for flaxseed oil
CN103305333A (en) * 2013-06-26 2013-09-18 河北农业大学 Linolenic acid-rich linseed oil and novel low-temperature cold pressing process thereof
CN103937595A (en) * 2014-04-23 2014-07-23 宁夏吴忠市伊盛达粮油有限公司 Linseed oil refining production system
CN104212629A (en) * 2014-09-17 2014-12-17 甘肃会宁建伟食用油有限责任公司 Method for extracting linseed oil by cold pressing with salt-water wetting
CN104543047A (en) * 2015-02-09 2015-04-29 陕西大统投资股份有限公司 Preservation method of cold-squeezed walnut oil
CN106147998A (en) * 2016-07-13 2016-11-23 甘肃长清生物科技有限责任公司 A kind of cold press production method of linseed oil
CN106433952A (en) * 2016-10-24 2017-02-22 宁夏马季清真食用油有限公司 Cold pressing production method for linseed oil
CN107927204A (en) * 2017-11-13 2018-04-20 佛山市祥寿生物科技有限公司 A kind of method using room temperature cold press low temperature detoxification technology production linseed oil
CN108624397A (en) * 2017-12-14 2018-10-09 高艳 A kind of organic former fragrant linseed oil and preparation method rich in active constituent
CN112481017A (en) * 2020-11-13 2021-03-12 宁夏瑞福祥粮油食品有限公司 Production method of linseed oil
CN114480010A (en) * 2021-12-28 2022-05-13 宁夏君星坊食品科技有限公司 Automatic production process for cold pressing of edible vegetable oil
CN114634840A (en) * 2021-11-30 2022-06-17 太仓市宝马油脂设备有限公司 High-value pure natural preparation process of flaxseed oil

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101880596A (en) * 2010-07-13 2010-11-10 中国农业科学院油料作物研究所 A method for low temperature preparation of oil
CN101979484A (en) * 2010-11-05 2011-02-23 中国农业科学院油料作物研究所 Method of solid adsorption and vacuum oil filtration refining pressed linseed oil
CN102894107A (en) * 2011-07-29 2013-01-30 甘肃陇新综合商贸有限公司 Nutritional walnut oil and production process thereof
CN102429116A (en) * 2011-11-04 2012-05-02 周韵箴 Preparation method of fat for marine fish
CN103030705A (en) * 2012-12-20 2013-04-10 中国农业科学院油料作物研究所 Comprehensive flax seed processing method
CN103266011A (en) * 2013-05-07 2013-08-28 刘军 Processing method for flaxseed oil
CN103266011B (en) * 2013-05-07 2015-08-26 刘军 A kind of working method of linseed oil
CN103215118A (en) * 2013-05-13 2013-07-24 宁夏吴忠市国军清真食品有限公司 Cold-pressing method of linseed oil
CN103305333A (en) * 2013-06-26 2013-09-18 河北农业大学 Linolenic acid-rich linseed oil and novel low-temperature cold pressing process thereof
CN103937595B (en) * 2014-04-23 2016-03-09 宁夏吴忠市伊盛达粮油有限公司 Production system refined by a kind of linseed oil
CN103937595A (en) * 2014-04-23 2014-07-23 宁夏吴忠市伊盛达粮油有限公司 Linseed oil refining production system
CN104212629A (en) * 2014-09-17 2014-12-17 甘肃会宁建伟食用油有限责任公司 Method for extracting linseed oil by cold pressing with salt-water wetting
CN104543047A (en) * 2015-02-09 2015-04-29 陕西大统投资股份有限公司 Preservation method of cold-squeezed walnut oil
CN106147998A (en) * 2016-07-13 2016-11-23 甘肃长清生物科技有限责任公司 A kind of cold press production method of linseed oil
CN106433952A (en) * 2016-10-24 2017-02-22 宁夏马季清真食用油有限公司 Cold pressing production method for linseed oil
CN107927204A (en) * 2017-11-13 2018-04-20 佛山市祥寿生物科技有限公司 A kind of method using room temperature cold press low temperature detoxification technology production linseed oil
CN108624397A (en) * 2017-12-14 2018-10-09 高艳 A kind of organic former fragrant linseed oil and preparation method rich in active constituent
CN112481017A (en) * 2020-11-13 2021-03-12 宁夏瑞福祥粮油食品有限公司 Production method of linseed oil
CN114634840A (en) * 2021-11-30 2022-06-17 太仓市宝马油脂设备有限公司 High-value pure natural preparation process of flaxseed oil
CN114480010A (en) * 2021-12-28 2022-05-13 宁夏君星坊食品科技有限公司 Automatic production process for cold pressing of edible vegetable oil

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Open date: 20081001