CN112322380A - Processing technology of linseed oil for improving product quality - Google Patents

Processing technology of linseed oil for improving product quality Download PDF

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Publication number
CN112322380A
CN112322380A CN202011157313.XA CN202011157313A CN112322380A CN 112322380 A CN112322380 A CN 112322380A CN 202011157313 A CN202011157313 A CN 202011157313A CN 112322380 A CN112322380 A CN 112322380A
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CN
China
Prior art keywords
linseed oil
oil
flaxseeds
quality
improving
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Pending
Application number
CN202011157313.XA
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Chinese (zh)
Inventor
袁庆龙
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Fragrant Dream Jiangsu Grain And Oil Industry Co ltd
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Fragrant Dream Jiangsu Grain And Oil Industry Co ltd
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Priority to CN202011157313.XA priority Critical patent/CN112322380A/en
Publication of CN112322380A publication Critical patent/CN112322380A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B1/00Production of fats or fatty oils from raw materials
    • C11B1/02Pretreatment
    • C11B1/04Pretreatment of vegetable raw material
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B1/00Production of fats or fatty oils from raw materials
    • C11B1/06Production of fats or fatty oils from raw materials by pressing
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B3/00Refining fats or fatty oils
    • C11B3/001Refining fats or fatty oils by a combination of two or more of the means hereafter
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B3/00Refining fats or fatty oils
    • C11B3/008Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B3/00Refining fats or fatty oils
    • C11B3/10Refining fats or fatty oils by adsorption

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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)
  • Fats And Perfumes (AREA)

Abstract

The invention discloses a linseed oil processing technology for improving product quality, which comprises the following steps: collecting and screening, carrying out primary cold pressing, removing bitter taste in oil, carrying out secondary filtering pressing, packaging and storing and the like; according to the processing technology of the linseed oil for improving the product quality, the linseed oil is pure in color, superior in fragrance and good in taste through the steps of harvesting and screening the linseed, carrying out primary cold pressing, removing bitterness in the linseed oil, carrying out secondary filtering pressing, packaging and storing and the like, the linseed oil is high in oil yield through the primary cold pressing and the secondary filtering pressing, the extraction efficiency of the linseed oil is improved, and meanwhile, the cold pressing method is adopted, so that the nutritional ingredients in the linseed oil are effectively prevented from being lost, and the quality of the linseed oil is greatly improved; the preparation method is excellent, and the processed product has good quality.

Description

Processing technology of linseed oil for improving product quality
Technical Field
The invention belongs to the technical field of linseed oil, and particularly relates to a processing technology of linseed oil for improving the product quality.
Background
The linseed oil is prepared from flaxseed, the flaxseed oil not only is edible oil, but also is healthy edible oil with the characteristics of homology of medicine and food, the flaxseed is the seed of the flaxseed, belongs to the flaxseed family, is called flax in particular, because the flaxseed is native to east India areas, the flaxseed belongs to the traditional oil crop in China, and the flaxseed is divided into oil flax, oil fiber flax and fiber flax; the alpha-linolenic acid has important significance to human metabolism, not only has certain nutritional function, but also can be converted into EPA and DHA in vivo;
the conventional linseed oil is low in oil yield easily in the preparation process, and meanwhile, the linseed oil prepared by the conventional processing steps is poor in taste and low in purity, so that the loss of nutritional ingredients is caused.
Disclosure of Invention
The invention mainly aims to provide a linseed oil processing technology for improving the product quality, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a process for preparing linseed oil with improved product quality, the process comprising the steps of:
firstly, harvesting flaxseeds, then respectively screening the flaxseeds through a 1200-mesh screen and a 400-mesh screen in sequence, selecting the last flaxseeds with the same particle size, then removing impurities from the screened flaxseeds, and then sterilizing the flaxseeds by ultraviolet lamp irradiation to obtain the flaxseeds with the same particle size;
step two, performing cold pressing, namely pressing the flaxseeds with the same particle size obtained in the step one, and pressing the flaxseeds by using a double-screw cold press; the obtained linseed oil is subjected to impurity removal, coarse filtration and fine filtration to obtain filtered linseed oil;
step three, removing bitter taste in oil: absorbing the filtered linseed oil obtained in the step two by using activated carbon under a certain condition to remove the bitter taste in the oil; the adding amount of the active carbon is 4-6% of the weight of the oil, the reaction temperature is 65-80 ℃, and the reaction time is 40-50 min; cooling to 5-10 deg.C, standing for 5-15 hr to obtain oleum Lini with good taste;
step four, secondary filtering and squeezing are carried out, the linseed oil with good taste obtained in the step three is mixed and stirred with the diatomite adsorbent for 80-100min, then the mixture is kept stand for 6-8h, and then centrifugation is carried out to obtain supernatant fluid so as to obtain the linseed oil with high purity;
and step five, packaging and storing, namely filling and sealing the obtained high-purity linseed oil, and storing the densely-filled linseed oil in a dark and cool environment, so that the processing technology of the linseed oil for improving the product quality can be completed, and finally the high-quality and high-purity linseed oil is obtained.
Preferably, in the first step, immature, worm eating, sprouting, mildewing and damaged seeds need to be removed when impurities are removed after sieving, so that good flaxseeds are obtained.
Preferably, in the second step, the number of times of coarse filtration is two, and the fine filtration is to heat the waxy oil to 10-15 ℃, and pump the waxy oil to a filter press for filtration.
Preferably, in the second step, when a double-screw cold press is adopted for pressing, the screw rotating speed is 15-25r/min, the total length-diameter ratio is 10-15, the total compression ratio is 12-20, and the power of a main motor is 15 kW.
Preferably, in the fourth step, the weight ratio of the crude linseed oil to the diatomite adsorbent is 100: 11.
preferably, the mixing temperature in the fourth step is controlled to be between 35 and 55 ℃ optimally.
Preferably, in step five, the flax seeds may settle when stored for extended periods of time, as by shaking prior to consumption.
Compared with the prior art, the invention has the following beneficial effects: this improve linseed oil's of product quality processing technology, through get rid of immature, worm eats, sprout, mould, the seed of heat injury before the preparation through screening in proper order and when removing the impurity, make the raw and other materials quality of preparation high, finally make the finished product quality of the linseed of preparation high, squeeze through once cold pressing and secondary filter simultaneously, make linseed oil's the oil yield improve, and increased when preparing and got rid of the bitter taste, make the taste of the back finished product linseed oil of preparation good, the linseed oil purity that this preparation method prepared is high, the effectual nutrient component who guarantees linseed oil.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
A process for preparing linseed oil with improved product quality, the process comprising the steps of: firstly, harvesting and screening flaxseeds, then respectively screening the flaxseeds through a 1200-mesh screen and a 400-mesh screen in sequence, selecting the final flaxseeds with the same particle size, secondly, removing impurities from the screened flaxseeds, removing immature, worm eating, sprouting, mildewing and damaged seeds when impurities are removed after screening to obtain good flaxseeds, and then sterilizing the flaxseeds by using an ultraviolet lamp to obtain the flaxseeds with the same particle size; secondly, performing cold pressing, namely pressing the flaxseeds with the same particle size obtained in the step one, and pressing the flaxseeds by using a double-screw cold press; when a double-screw cold press is adopted for pressing, the screw rotating speed is 20r/min, the total length-diameter ratio is 12, the total compression ratio is 15, the power of a main motor is 15kW, linseed oil is obtained, impurity removal, coarse filtration and fine filtration are carried out on the linseed oil, the number of times of the coarse filtration is two, the fine filtration is to heat wax-containing oil to 12 ℃, and the wax-containing oil is pumped to a filter press for filtration, so that filtered linseed oil is obtained; then removing bitterness in oil: absorbing the filtered linseed oil obtained in the step two by using activated carbon under a certain condition to remove the bitter taste in the oil; the adding amount of the active carbon is 4 percent of the weight of the oil, the reaction temperature is 65 ℃, and the reaction time is 40 min; cooling at 5 deg.C, standing for 10 hr to obtain oleum Lini with good taste; and then, carrying out secondary filtration and squeezing, mixing and stirring the linseed oil with good taste and the diatomite adsorbent obtained in the third step, wherein the weight ratio of the linseed crude oil to the diatomite adsorbent is 100: 11, during mixing and stirring, the stirring temperature is controlled to be optimal at 35 ℃, the stirring time is 80min, then the mixture is kept stand for 6h, and then the mixture is centrifuged to obtain supernatant fluid, so that linseed oil with high purity is obtained; and finally, packaging and storing, namely filling and sealing the obtained high-purity linseed oil, storing the densely-filled linseed oil in a dark and cool environment, wherein the linseed oil is likely to generate precipitates during long-time storage, and shaking before eating, so that the processing technology of the linseed oil for improving the product quality can be completed.
50g of the linseed oil prepared by the method is detected by related detection equipment, and the prepared linseed oil contains alpha-linolenic acid with the content of 56-58% per ml through detection.
Example 2
A process for preparing linseed oil with improved product quality, the process comprising the steps of: firstly, harvesting and screening flaxseeds, then respectively screening the flaxseeds through a 1200-mesh screen and a 400-mesh screen in sequence, selecting the final flaxseeds with the same particle size, secondly, removing impurities from the screened flaxseeds, removing immature, worm eating, sprouting, mildewing and damaged seeds when impurities are removed after screening to obtain good flaxseeds, and then sterilizing the flaxseeds by using an ultraviolet lamp to obtain the flaxseeds with the same particle size; secondly, performing cold pressing, namely pressing the flaxseeds with the same particle size obtained in the step one, and pressing the flaxseeds by using a double-screw cold press; when a double-screw cold press is adopted for pressing, the screw rotating speed is 25r/min, the total length-diameter ratio is 15, the total compression ratio is 20, the main motor power is 15kW, linseed oil is obtained, impurity removal, coarse filtration and fine filtration are carried out on the linseed oil, the number of the coarse filtration is two, the fine filtration is to heat the wax-containing oil material to 15 ℃, and the wax-containing oil material is pumped to a filter press for filtration, so that filtered linseed oil is obtained; then removing bitterness in oil: absorbing the filtered linseed oil obtained in the step two by using activated carbon under a certain condition to remove the bitter taste in the oil; the adding amount of the active carbon is 6 percent of the weight of the oil, the reaction temperature is 80 ℃, and the reaction time is 50 min; cooling at 10 deg.C, standing for 15 hr to obtain oleum Lini with good taste; and then, carrying out secondary filtration and squeezing, mixing and stirring the linseed oil with good taste and the diatomite adsorbent obtained in the third step, wherein the weight ratio of the linseed crude oil to the diatomite adsorbent is 100: 11, during mixing and stirring, the stirring temperature is controlled to be optimal at 55 ℃, the stirring time is 100min, then standing is carried out for 8h, and then centrifugation is carried out to obtain the supernatant fluid to obtain the linseed oil so as to obtain the linseed oil with high purity; and finally, packaging and storing, namely filling and sealing the obtained high-purity linseed oil, storing the densely-filled linseed oil in a dark and cool environment, wherein the linseed oil is likely to generate precipitates during long-time storage, and shaking before eating, so that the processing technology of the linseed oil for improving the product quality can be completed.
80g of the linseed oil prepared by the method is detected by related detection equipment, and the prepared linseed oil contains up to 52-55% of alpha-linolenic acid per ml through detection.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. A process for improving the quality of linseed oil is characterized by comprising the following steps:
firstly, harvesting flaxseeds, then respectively screening the flaxseeds through a 1200-mesh screen and a 400-mesh screen in sequence, selecting the last flaxseeds with the same particle size, then removing impurities from the screened flaxseeds, and then sterilizing the flaxseeds by ultraviolet lamp irradiation to obtain the flaxseeds with the same particle size;
step two, performing cold pressing, namely pressing the flaxseeds with the same particle size obtained in the step one, and pressing the flaxseeds by using a double-screw cold press; the obtained linseed oil is subjected to impurity removal, coarse filtration and fine filtration to obtain filtered linseed oil;
step three, removing bitter taste in oil: absorbing the filtered linseed oil obtained in the step two by using activated carbon under a certain condition to remove the bitter taste in the oil; the adding amount of the active carbon is 4-6% of the weight of the oil, the reaction temperature is 65-80 ℃, and the reaction time is 40-50 min; cooling to 5-10 deg.C, standing for 5-15 hr to obtain oleum Lini with good taste;
step four, secondary filtering and squeezing are carried out, the linseed oil with good taste obtained in the step three is mixed and stirred with the diatomite adsorbent for 80-100min, then the mixture is kept stand for 6-8h, and then centrifugation is carried out to obtain supernatant fluid so as to obtain the linseed oil with high purity;
and step five, packaging and storing, namely filling and sealing the obtained high-purity linseed oil, and storing the densely-filled linseed oil in a dark and cool environment, so that the processing technology of the linseed oil for improving the product quality can be completed, and finally the high-quality and high-purity linseed oil is obtained.
2. The process for processing flaxseed oil according to claim 1, wherein in step one, removing immature, worm-eaten, sprouted, moldy and damaged seeds is required after sieving and impurity removal to obtain good flaxseed.
3. The process according to claim 1 for improving the quality of linseed oil, wherein: in the second step, the number of coarse filtration is two, and the fine filtration is to heat the wax-containing oil to 10-15 ℃, and pump the wax-containing oil to a filter press for filtration.
4. The process according to claim 1 for improving the quality of linseed oil, wherein: in the second step, when a double-screw cold squeezer is used for squeezing, the rotating speed of a screw is 15-25r/min, the total length-diameter ratio is 10-15, the total compression ratio is 12-20, and the power of a main motor is 15 kW.
5. The process according to claim 1 for improving the quality of linseed oil, wherein: in the fourth step, the weight ratio of the linseed crude oil to the diatomite adsorbent is 100: 11.
6. the process according to claim 1 for improving the quality of linseed oil, wherein: and in the fourth step, the stirring temperature is optimally controlled between 35 and 55 ℃ during the mixing and stirring.
7. The process according to claim 1 for improving the quality of linseed oil, wherein: in step five, the flax seeds may precipitate when stored for a long time, and the flax seeds are shaken before being eaten.
CN202011157313.XA 2020-10-26 2020-10-26 Processing technology of linseed oil for improving product quality Pending CN112322380A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116042308A (en) * 2023-02-24 2023-05-02 宁夏家家食用油有限公司 Production method of cold pressed linseed oil

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106929143A (en) * 2015-12-29 2017-07-07 北京鑫华乐源科技发展有限公司 Cold pressed flax seed oil production technology without cyanide, without bitter taste
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
CN108893191A (en) * 2018-07-26 2018-11-27 广州利众生物科技有限公司 A kind of linseed oil cold pressing squeezing production method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106929143A (en) * 2015-12-29 2017-07-07 北京鑫华乐源科技发展有限公司 Cold pressed flax seed oil production technology without cyanide, without bitter taste
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
CN108893191A (en) * 2018-07-26 2018-11-27 广州利众生物科技有限公司 A kind of linseed oil cold pressing squeezing production method

Non-Patent Citations (1)

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左青,等: "亚麻籽油及其关键生产技术", 《中国油脂》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116042308A (en) * 2023-02-24 2023-05-02 宁夏家家食用油有限公司 Production method of cold pressed linseed oil

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Application publication date: 20210205