CN102154055A - Method for leaching peanut oil in water with microwave pretreatment - Google Patents
Method for leaching peanut oil in water with microwave pretreatment Download PDFInfo
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- CN102154055A CN102154055A CN 201110036763 CN201110036763A CN102154055A CN 102154055 A CN102154055 A CN 102154055A CN 201110036763 CN201110036763 CN 201110036763 CN 201110036763 A CN201110036763 A CN 201110036763A CN 102154055 A CN102154055 A CN 102154055A
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Abstract
The invention discloses a method for leaching peanut oil in water with microwave pretreatment, belonging to the technical field of edible plant oil processing methods and aiming at solving the technical problem that a bran-new peanut oil production method is provided so as to overcome the destruction of the nutrient value of the peanut oil and the damage of trans-fatty acid and benzopyrene on a human body in the prior art. The method is characterized in that based on peanut kernels without shells as raw materials, microwave irradiation heating is carried out so as to promote oil-containing cells to be fully broken; the peanut kernels are grinded in a grinding machine to 120-200 meshes; hot water is added in the ground peanut kernels in a proportion for stirring and fusing at constant temperature; and centrifugal separation and vacuum drying are carried out so as to directly obtain the pure peanut oil, wherein the oil yield of the pure peanut oil is larger than or equal to 95%, nutrient ingredients in the pure peanut oil are entirely maintained, and harmful components such as trans-fatty acid, benzopyrene and the like do not completely contained in the pure peanut oil. The method has the characteristics that the obtained pure peanut oil has no high temperature high pressure and no organic solvent residue, process flow is short, equipment is simple, oil yield is high, and the like, and the method is easy for industrial production.
Description
Technical field
The present invention relates to a kind of method of from plant seed, extracting food oils, from Semen arachidis hypogaeae, extract the method for peanut oil specifically, belong to edible vegetable oil working method technical field.
Background technology
Peanut is the important soft edible oil materials of high oil content band shell of China.Peanut contains the about 65%-75% of benevolence, oil-containing 40%--55% in the benevolence, protein 25%--31%.Peanut nutrition is abundant, is rich in trace elements such as multivitamin and calcium, phosphorus, iron, magnesium, zinc.Peanut oil is the food oils that go out from Extraction of Peanut, contains unsaturated fatty acids in the oil more than 80%.And the content of trans-resveratrol, β-sitosterol, vitamin-E etc. is also very abundant, modern medicine study proves that these several materials are chemopreventive agents of tumour class disease, arteriosclerosis and cardiovascular and cerebrovascular diseases, so peanut oil is a kind of good food oils with nourishing function.
But for a long time, the conventional production methods of peanut oil is to adopt high temperature stir-fry material, mechanical expression to obtain machine and press crude oil, and machine press for extracting juice cake leaches with organic solvent and obtains leaching crude oil, and two kinds of crude oils process chemical refinings finally obtain finished product peanut oil.Because the high temperature, high pressure and the organic solvent residual that in the course of processing, exist, not only destroyed the nutritive substance of peanut oil, but also can generate harmful trans fatty acid and benzopyrene, thereby the nutritive value and the nourishing function of peanut oil have been influenced greatly.
Do not utilize the method for Microwave Pretreatment water extraction peanut oil in the prior art.
Summary of the invention
Technical problem to be solved by this invention provides a kind of brand-new peanut oil production method, is damaged to overcome peanut oil nutritive value in the above-mentioned prior art, trans fatty acid and benzopyrene be to the harm of human body.
Technology contents of the present invention is:
A kind of method with Microwave Pretreatment water extraction peanut oil is to utilize microwave that polar material is had selectivity heating and the strong characteristic of penetrance, and the Semen arachidis hypogaeae that has shelled is carried out irradiation, makes oil cell rapidly, fully break; This Semen arachidis hypogaeae being added in proportion hot water after fully levigate carries out constant temperature and stirs and merge, utilize the water and the density difference of oil that oil immersion is taken out, directly obtain the pure natural peanut oil that oil yield 〉=95%, nutrition remained intact, do not contain fully trans fatty acid and benzopyrene through centrifugation and vacuum-drying again, fundamentally solved many shortcomings that conventional production methods exists.
Enforcement of the present invention may further comprise the steps:
1, be raw material with the fresh dry peanut benevolence of shelling, the shell-containing rate in the benevolence answers≤1.0%;
2, Semen arachidis hypogaeae is heated to 50 ℃-85 ℃ through microwave radiator, and oil cell is fully broken;
3, the Semen arachidis hypogaeae that heats through microwave radiator enters shredder and is milled to the 120-200 order;
4, with abrasive by ratio of water to material 2.5-10.5: 1 hot water that adds 50 ℃-85 ℃ is sized mixing;
5, slurry constant temperature under 50 ℃-85 ℃, 40-180r/min condition stirs and merges 35-150min;
6, merge slurry and obtain peanut edible vegetable oil, slag and process water through centrifugation;
7, edible vegetable oil dehydrates under 95kpa, 65 ℃ of vacuum conditions, obtains the pure natural peanut oil that oil yield 〉=95%, nutrition remained intact, do not contain fully trans fatty acid and benzopyrene;
9, separate the wet slag obtain and enter drying and utilize operation again, process water returns the operation of sizing mixing and repeats to make
10, the frequency of used microwave generator is 2450 megahertzes or 915 megahertzes.
The invention has the beneficial effects as follows:
1, thoroughly changed the conventional production methods of peanut oil, no high temperature, high pressure and dissolvent residual have kept the nutritive value of peanut oil comprehensively and have not contained trans fatty acid and benzopyrene fully;
2, need not refining and directly obtain high-quality pure natural peanut oil, the oil yield height, color and luster, mouthfeel are good;
3, technical process is short and equipment is simple, is easy to suitability for industrialized production.
Embodiment
Example one
Take by weighing the shelling Semen arachidis hypogaeae 100kg of oil-containing 48%, after microwave exposure is heated to 50 ℃, be ground to 120 orders; Adding hot water 250L at 2.5: 1 by ratio of water to material again sizes mixing, slurry constant temperature under 50 ℃, 40r/min condition stirs and merges 35min, centrifugalled edible vegetable oil carries out drying and dehydrating under vacuum 95kpa, 65 ℃ of conditions, obtain pure natural peanut oil 46.81kg, calculates oil yield to be:
46.81kg/48kg×100％＝97.52％
Example two
Take by weighing the shelling Semen arachidis hypogaeae 100kg of oil-containing 50.6%, after microwave exposure is heated to 85 ℃, be ground to 200 orders; Adding hot water 1500L at 10.5: 1 by ratio of water to material sizes mixing; Slurry constant temperature under 85 ℃, 180r/min condition stirs and merges 150min, and the edible vegetable oil that obtains through centrifugation carries out drying and dehydrating under vacuum 95kpa, 65 ℃ of conditions, obtain pure natural peanut oil 49.80kg, calculates oil yield to be:
49.80kg/50.6kg×100％＝98.42％
After testing, the every index of resulting pure natural peanut oil has all reached the standard (GB1534--2003) of country's squeezing one-level peanut oil, and does not contain trans fatty acid and benzene fully.
Claims (5)
1. method with Microwave Pretreatment water extraction peanut oil, it is characterized in that with the Semen arachidis hypogaeae of peeling off be raw material, after the microwave exposure heating impels oil cell fully to break, enter shredder and be milled to the 120-200 order, add hot water then in proportion and carry out constant temperature and stir to merge, after centrifugation and vacuum-drying, directly obtain the pure natural peanut oil that oil yield 〉=95%, nutritive ingredient remained intact, do not contain fully trans fatty acid and benzopyrene again.
2. a kind of method with Microwave Pretreatment water extraction peanut oil according to claim 1 is characterized in that may further comprise the steps:
(1) be raw material with the fresh dry peanut benevolence of shelling, the shell-containing rate in the benevolence answers≤1.0%;
(2) Semen arachidis hypogaeae is heated to 50 ℃-85 ℃ through microwave radiator, and oil cell is fully broken;
(3) Semen arachidis hypogaeae that heats through microwave radiator enters shredder and is milled to the 120-200 order;
(4) with abrasive by ratio of water to material 2.5-10.5: 1 hot water that adds 50 ℃-85 ℃ is sized mixing;
(5) slurry constant temperature under 50 ℃-85 ℃, 40-180r/min condition stirs and merges 35-150min;
(6) merge slurry and obtain peanut edible vegetable oil, slag and process water through centrifugation.
(7) edible vegetable oil dehydrates under 95kpa, 65 ℃ of vacuum conditions, obtains pure natural peanut oil.
3. a kind of method with Microwave Pretreatment water extraction peanut oil according to claim 1 is characterized in that oil yield 〉=95% of pure natural peanut oil, and does not contain oxious components such as trans fatty acid and benzopyrene fully.
4. a kind of method with Microwave Pretreatment water extraction peanut oil according to claim 1 is characterized in that entering drying through the wet slag that separation obtains utilizes operation again; Process water returns the operation of sizing mixing and reuses.
5. a kind of method with Microwave Pretreatment water extraction peanut oil according to claim 1, the frequency that it is characterized in that used microwave generator is 2450 megahertzes or 915 megahertzes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110036763 CN102154055A (en) | 2011-02-12 | 2011-02-12 | Method for leaching peanut oil in water with microwave pretreatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110036763 CN102154055A (en) | 2011-02-12 | 2011-02-12 | Method for leaching peanut oil in water with microwave pretreatment |
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| CN102154055A true CN102154055A (en) | 2011-08-17 |
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| CN 201110036763 Pending CN102154055A (en) | 2011-02-12 | 2011-02-12 | Method for leaching peanut oil in water with microwave pretreatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181841A (en) * | 2018-10-24 | 2019-01-11 | 山东鲁花集团有限公司 | A kind of milling process of high oleic acid peanut and its application |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847380A (en) * | 2005-04-15 | 2006-10-18 | 万绍平 | Oil and grease extracting microwave process |
| CN101775332A (en) * | 2010-03-01 | 2010-07-14 | 郑小非 | Method for extracting tea seed oil by water with microwave pretreatment |
-
2011
- 2011-02-12 CN CN 201110036763 patent/CN102154055A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1847380A (en) * | 2005-04-15 | 2006-10-18 | 万绍平 | Oil and grease extracting microwave process |
| CN101775332A (en) * | 2010-03-01 | 2010-07-14 | 郑小非 | Method for extracting tea seed oil by water with microwave pretreatment |
Non-Patent Citations (1)
| Title |
|---|
| 《粮油加工》 20071231 张嘉颖等 微波辅助萃取花生油的工艺研究 72-75 1-5 , 第9期 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181841A (en) * | 2018-10-24 | 2019-01-11 | 山东鲁花集团有限公司 | A kind of milling process of high oleic acid peanut and its application |
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Application publication date: 20110817 |