CN107904006A - A kind of high-quality technique for processing walnut oil - Google Patents
A kind of high-quality technique for processing walnut oil Download PDFInfo
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- CN107904006A CN107904006A CN201711243256.5A CN201711243256A CN107904006A CN 107904006 A CN107904006 A CN 107904006A CN 201711243256 A CN201711243256 A CN 201711243256A CN 107904006 A CN107904006 A CN 107904006A
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- walnut
- oil
- filtering
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- walnut oil
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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
- C11B1/06—Production of fats or fatty oils from raw materials by pressing
-
- 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
- C11B3/00—Refining fats or fatty oils
- C11B3/008—Refining fats or fatty oils by filtration, e.g. including ultra filtration, dialysis
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- 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)
- Preparation Of Fruits And Vegetables (AREA)
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Abstract
The invention discloses a kind of high-quality technique for processing walnut oil, it includes：(1) dry fruit walnut is sent into dryer low temperature drying；(2) dried walnut, completely shelling, are fabricated to walnut kernel；(3) walnut kernel to shell completely, is sent into the vertical hydraulic oil press squeezing liquefaction of self controllable boosting；(4) crude oil of hydraulic cold, is filtered and polished with filter and filtered so that well cuts content is less than 0.02%；(5) walnut oil of detection polishing filtering, if quality index do not meet or it is micro- be higher than walnut oil national standard, carry out appropriate refining, the qualified as finished product of detection；(6) walnut oil of detection polishing filtering, if quality index is higher than national standard, wherein acid value and peroxide value is significantly larger than national standard, then is cold press walnut oil finished product.The walnut oil processed using the present invention, micro- nutritional ingredient is effectively retained, thus product quality is effectively improved, product nutritive value higher.
Description
Technical field
The present invention relates to walnut oil manufacture field, mainly a kind of high-quality technique for processing walnut oil.
Background technology
Existing walnut oil processing technology, mainly imitates peanut oil squeezing technique, using the once spiral pre- squeezing with shell,
Secondary spiral squeezing is carried out again.Since content of polyunsaturated fatty acid is up to more than 60%, when temperature is more than 60 DEG C in walnut oil,
Acid value and peroxide value can raise rapidly.Existing twice pressing oil-producing technique, actually belongs to hot moulding, and bombing bore temperature is up to
130 DEG C, thus not only acid value is up to more than 15mgKOH/g to squeezing crude oil, and also peroxide value is also up to more than 12mmol/kg,
Basic index is excessively poor；Such crude oil poor quality, not only postorder difficulty of processing is big, but also also very big, micro- nutrition is lost
Composition loses almost totally.Problem above, limits the development of walnut oil secondary industry.At present, walnut yield in China's is passed year by year
Increase, quickly, industrial benefit also drastically declines walnut fruit prices；Rely solely on and sell walnut fruit not only income is low, but also
It can not solve the place to go of flood tide walnut；And the processing technology of walnut oil falls behind very much, so that the bottleneck as industry development；Such as
What improves squeezing quality of crude oil, improves product quality and yield so that rear road processing is smooth, so that flood tide core
Peach is efficiently utilized, and is to improve industrial benefit, solve the effective way of significant problem of the pendulum in face of industry at present.
The content of the invention
It is an object of the invention to overcome the shortcomings of the prior art, and provide a kind of high-quality walnut oil processing work
Skill, specifically by after walnut raw material drying to relatively low moisture content, shelling completely, cold press is carried out using automatic cold pressing expeller,
Crude oil after cold press carries out multiple times of filtration or appropriateness refining, so as to obtain a kind of method of high-quality walnut oil.
The purpose of the present invention is by following technical solution to complete.This high-quality technique for processing walnut oil, including
Following steps：
(1) dry fruit walnut is sent into dryer low temperature drying, 40-50 DEG C of drying temperature, walnut kernel moisture 3- after drying
5%；
(2) dried walnut is cooled to room temperature, completely shelling, is fabricated to walnut kernel；
(3) walnut kernel to shell completely, is sent into the vertical hydraulic oil press squeezing liquefaction of self controllable squeezing, oil press highest
Pressure is arranged to 56MPa, boosts at intervals of 15-20s, pressure rising time 1-2s, squeezes time 70-90min；
(4) crude oil of hydraulic cold, with filter filter and polish filter, after filtering so that well cuts content be less than or
Equal to 0.02%；
(5) polishing filtering walnut oil, after testing, if quality index do not meet or it is micro- be better than walnut oil national standard, into
Row appropriateness refining so that acid value≤0.5mgKOH/g, peroxide value≤0.5mmmol/kg, other Indexs measures are qualified, by throwing
It is finished product after light filtering；
(6) walnut oil of polishing filtering, after testing, if quality index is higher than national standard, if acid value≤0.5mgKOH/g,
Peroxide value≤3mmmol/kg, significantly larger than national standard, other quality standards meet relevant national standard requirement, throw again
It is then cold press walnut oil finished product after light filtering.
Beneficial effects of the present invention are：After applying the present invention, processing technology is not only simplify, reduces production cost；And
And also efficiently solve using the low problem of the further development benefit of byproduct press cake caused by hot moulding technique.Using
The walnut oil that the present invention processes, micro- nutritional ingredient is effectively retained, thus product quality is effectively improved, product battalion
Support value higher.
Brief description of the drawings
Fig. 1 is the process flow diagram of the present invention.
Embodiment
Detailed introduction is done to the present invention below in conjunction with attached drawing：
The present invention provides a kind of high-quality technique for processing walnut oil, as shown in Figure 1 so that after processing, not only oily product
Matter and processing yield effectively improve, and are effectively improved production efficiency, reduce production cost.
Squeezing：Dry fruit walnut is sent into dryer low temperature drying, 40-50 DEG C of drying temperature, walnut kernel moisture 3- after drying
5%；Dried walnut is cooled to room temperature, completely shelling, is fabricated to walnut kernel；The walnut kernel to shell completely, is sent into self controllable
Squeezing vertical hydraulic oil press squeezing liquefaction, the oil press be for walnut feature customization professional oil press, oil press
Maximum pressure is arranged to 56MPa, and automatic boosting squeezes time 70-90min at intervals of pressure rising time 1-2s/15-20s.
It is refined:The crude oil of hydraulic cold, is filtered and polished with filter and filtered, so that well cuts content is less than after filtering
Or equal to 0.02%；Polish filtering walnut oil, after testing, if quality index do not meet or it is micro- be better than walnut oil national standard,
Carry out appropriate refining so that acid value≤0.5mgKOH/g, peroxide value≤0.5mmmol/kg, after polishing is filtered be into
Product；The walnut oil of filtering is polished, after testing, if quality index is higher than national standard, if acid value≤0.5mgKOH/g, peroxide value
≤ 3mmmol/kg, significantly larger than national standard, other quality standards meet relevant national standard requirement, again after polishing filtering
It is then cold press walnut oil finished product.
The principle of the present invention is:By the further low temperature drying of walnut raw material so that the moisture of dried walnut kernel is in 3-
5%；Dried walnut kernel, is sent into the squeezing of walnut dedicated hydraulic automatic control oil press；Walnut oil after squeezing, is first filtered,
Then further polishing filtering so that the walnut oil impurity content of filtering is no more than 0.02%；The walnut oil of polishing filtering passes through
Detection, if acid value and peroxide value exceed or close to relevant national standard, carry out appropriate refining；If the walnut oil for polishing filtering is each
Item qualified, and acid value peroxide value is relatively low, can be sold directly as product oil.The present invention compared with prior art, adopts
It is the preconditioning technique for walnut feature, complete cold pressing process, the refined and quality control skill of high-quality walnut oil
Art.So as to prevent the quick rise of the index such as acid value and peroxide value in expressing process, the alkali refining and washing skill of pre- anti-emulsion
Art, the decolouring technology of anti-color reversion and more low intensive deodorizing technology.
Embodiment 1：Dry fruit walnut is sent into dryer low temperature drying, 40 DEG C of drying temperature, walnut kernel moisture after drying
3.5%；Dried walnut is cooled to room temperature, completely shelling, is fabricated to walnut kernel；The walnut kernel to shell completely, feeding can be certainly
The vertical hydraulic oil press squeezing liquefaction that pressure control squeezes, which is the professional oil press for the customization of walnut feature, is extracted oil
Machine maximum pressure is arranged to 56MPa, and automatic boosting squeezes time 70min at intervals of pressure rising time 1s/15s；The hair of hydraulic cold
Oil, is filtered and polished with filter and filtered, and well cuts content is 0.02% after filtering；The walnut oil of filtering is polished, after testing,
Acid value is 1.2mgKOH/g, peroxide value 5.8mmmol/kg, and other quality safety indexs meet walnut oil national standard；Through
After crossing appropriateness refining, acid value 0.38mgKOH/g, peroxide value, is 0.45mmmol/kg, and other Indexs measures are qualified, pass through
Polishing filtering, obtains high-quality walnut oil.
Embodiment 2：Dry fruit walnut is sent into dryer low temperature drying, 50 DEG C of drying temperature, walnut kernel moisture after drying
4.2%；Dried walnut is cooled to room temperature, completely shelling, is fabricated to walnut kernel；The walnut kernel to shell completely, feeding can be certainly
The vertical hydraulic oil press squeezing liquefaction that pressure control squeezes, which is the professional oil press for the customization of walnut feature, is extracted oil
Machine maximum pressure is arranged to 56MPa, and automatic boosting squeezes time 80min at intervals of pressure rising time 2s/20s；The hair of hydraulic cold
Oil, is filtered and polished with filter and filtered, and it is 0.01% that well cuts content is made after filtering；The walnut oil of filtering is polished, through inspection
Survey, acid value 0.23mgKOH/g, peroxide value 2.6mmmol/kg, other quality safety indexs meet walnut oil country mark
Standard, obtains high-quality cold press walnut oil after polishing filtering again.
National standard is better than using the walnut oil quality after this technique, not only reduces the difficulty of processing, press cake Residual oil can be low
To 8%, compared with hot moulding technique, (walnut shell-containing rate is 50% or so to squeezing yield, and hot moulding technique is to be squeezed containing shell, cake Residual oil 8-
12%) 50% is improved, production cost is relatively low, and press cake can be cooked raw-food material because being free of shell；Due to using cold press work
Skill, not only saves the original flavor of walnut oil, but also avoids the quick rise of acid value and peroxide value caused by heated,
So that micro- nutritional ingredient in walnut oil is also effectively retained.Compared with existing processing technology, as a result of raw material
Control technology, automatic control cold-squeezing and refined and Quality Control Technology so that process quality of intermediate amount effectively improves,
Also so that the production efficiency of process increases substantially, production cost is effectively reduced, thus this technology has more promotion price
Value.
It is understood that it will be understood by those skilled in the art that technical scheme and inventive concept are subject to
The protection domain of appended claims of the invention should all be belonged to replacement or change.
Claims (3)
- A kind of 1. high-quality technique for processing walnut oil, it is characterised in that：Include the following steps：(1) dry fruit walnut is sent into dryer low temperature drying, 40-50 DEG C of drying temperature, walnut kernel moisture 3-5% after drying；(2) dried walnut is cooled to room temperature, completely shelling, is fabricated to walnut kernel；(3) walnut kernel to shell completely, is sent into the vertical hydraulic oil press squeezing liquefaction of self controllable squeezing, oil press maximum pressure 56MPa is arranged to, boosts at intervals of 15-20s, pressure rising time 1-2s, squeezes time 70-90min；(4) crude oil of hydraulic cold, is filtered and polished with filter and filtered, so that well cuts content is less than or equal to after filtering 0.02%；(5) walnut oil of polishing filtering, after testing, if quality index do not meet or it is micro- be better than walnut oil national standard, carry out smart Refining so that acid value≤0.5mgKOH/g, peroxide value≤0.5mmmol/kg, other Indexs measures are qualified, after polishing is filtered As finished product；(6) walnut oil of polishing filtering, after testing, if quality index is higher than national standard, if acid value≤0.5mgKOH/g, peroxide Change value≤3mmmol/kg, other quality standards meet relevant national standard requirement, are again then cold press walnut oil after polishing filtering Finished product.
- 2. high-quality technique for processing walnut oil according to claim 1, it is characterised in that：Dry fruit walnut is sent into dryer Low temperature drying, 40 DEG C of drying temperature, walnut kernel moisture 3.5% after drying；Dried walnut is cooled to room temperature, completely shelling, It is fabricated to walnut kernel；The walnut kernel to shell completely, is sent into the vertical hydraulic oil press squeezing liquefaction of self controllable squeezing, oil press is most High pressure is arranged to 56MPa, and automatic boosting squeezes time 70min at intervals of pressure rising time 1s/15s；The crude oil of hydraulic cold, Filtered with filter and polish filtering, well cuts content is 0.02% after filtering；The walnut oil of filtering is polished, after testing, acid Valency is 1.2mgKOH/g, peroxide value 5.8mmmol/kg, and other quality safety indexs meet walnut oil national standard；By After appropriateness refining, acid value 0.38mgKOH/g, peroxide value 0.45mmmol/kg, other Indexs measures are qualified, by polishing Filtering, obtains high-quality walnut oil.
- 3. high-quality technique for processing walnut oil according to claim 1, it is characterised in that：Dry fruit walnut is sent into dryer Low temperature drying, 50 DEG C of drying temperature, walnut kernel moisture 4.2% after drying；Dried walnut is cooled to room temperature, completely shelling, It is fabricated to walnut kernel；The walnut kernel to shell completely, is sent into the vertical hydraulic oil press squeezing liquefaction of self controllable squeezing, oil press is most High pressure is arranged to 56MPa, and automatic boosting squeezes time 80min at intervals of pressure rising time 2s/20s；The crude oil of hydraulic cold, Filtering is filtered and polished with filter, and it is 0.01% that well cuts content is made after filtering；The walnut oil of filtering is polished, after testing, Acid value is 0.23mgKOH/g, peroxide value 2.6mmmol/kg, and other quality safety indexs meet walnut oil national standard, then High-quality cold press walnut oil is obtained after secondary polishing filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711243256.5A CN107904006A (en) | 2017-11-30 | 2017-11-30 | A kind of high-quality technique for processing walnut oil |
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| CN201711243256.5A CN107904006A (en) | 2017-11-30 | 2017-11-30 | A kind of high-quality technique for processing walnut oil |
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| CN107904006A true CN107904006A (en) | 2018-04-13 |
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| CN201711243256.5A Pending CN107904006A (en) | 2017-11-30 | 2017-11-30 | A kind of high-quality technique for processing walnut oil |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108865418A (en) * | 2018-06-26 | 2018-11-23 | 赵涛 | Former odor type walnut oil processing method |
| CN109762651A (en) * | 2019-02-19 | 2019-05-17 | 中国林业科学研究院亚热带林业研究所 | A kind of efficient preparation process of high-quality pecan oil |
| CN111411015A (en) * | 2019-07-16 | 2020-07-14 | 湖北华龙西科生物科技有限公司 | Production method of functional walnut oil rich in biological organic selenium |
| CN112063445A (en) * | 2020-09-04 | 2020-12-11 | 武汉轻工大学 | Preparation process of walnut oil |
| CN112625790A (en) * | 2020-10-13 | 2021-04-09 | 四川农业大学 | Method for producing walnut oil by squeezing belt shell |
| CN116083157A (en) * | 2022-12-08 | 2023-05-09 | 贵州省林业科学研究院 | Processing method of eutrophic high-quality camellia seed oil |
| CN116333808A (en) * | 2023-03-02 | 2023-06-27 | 湖北五龙河食品有限公司 | Walnut oil pressing technology capable of improving oil yield |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108865418A (en) * | 2018-06-26 | 2018-11-23 | 赵涛 | Former odor type walnut oil processing method |
| CN109762651A (en) * | 2019-02-19 | 2019-05-17 | 中国林业科学研究院亚热带林业研究所 | A kind of efficient preparation process of high-quality pecan oil |
| CN111411015A (en) * | 2019-07-16 | 2020-07-14 | 湖北华龙西科生物科技有限公司 | Production method of functional walnut oil rich in biological organic selenium |
| CN112063445A (en) * | 2020-09-04 | 2020-12-11 | 武汉轻工大学 | Preparation process of walnut oil |
| CN112625790A (en) * | 2020-10-13 | 2021-04-09 | 四川农业大学 | Method for producing walnut oil by squeezing belt shell |
| CN116083157A (en) * | 2022-12-08 | 2023-05-09 | 贵州省林业科学研究院 | Processing method of eutrophic high-quality camellia seed oil |
| CN116333808A (en) * | 2023-03-02 | 2023-06-27 | 湖北五龙河食品有限公司 | Walnut oil pressing technology capable of improving oil yield |
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