CN103275807B - Aromatic walnut oil production process - Google Patents
Aromatic walnut oil production process Download PDFInfo
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- CN103275807B CN103275807B CN201310230096.6A CN201310230096A CN103275807B CN 103275807 B CN103275807 B CN 103275807B CN 201310230096 A CN201310230096 A CN 201310230096A CN 103275807 B CN103275807 B CN 103275807B
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Abstract
An aromatic walnut oil production process is characterized by comprising sequential technological steps as follows: checking raw materials of walnuts, smashing the walnuts to obtain walnut kernels, sorting the walnut kernels, bagging the walnut kernels, performing cold pressing on the walnut kernels, obtaining crude walnut oil, hydrating the crude walnut oil at normal temperatures, performing nanofiltration (NF) on the crude walnut oil, obtaining finished walnut oil, filling the finished walnut oil in a tank, checking the finished walnut oil and putting the walnut oil in storage. The aromatic walnut oil production process has the advantages as follows: a refining step is omitted in the walnut oil production process, any chemical and high-temperature treatment of grease in the processing process is not required, the clear and transparent high-standard aromatic walnut oil which meets the requirements of national standards can be produced only through cold pressing and simple hydrating and filtering steps, original color, aroma and taste of walnut oil are kept, and nutritional ingredients and microelements of the walnut oil can be prevented from being damaged.
Description
Technical field
The present invention relates to a kind of production technology of walnut oil, particularly a kind of alcohol odor type production technology of walnut oil.
Background technology
At present, the traditional processing technology of walnut oil is included as squeezing and refinement step, and wherein, squeezing step is divided into again two kinds of normal temperature squeezing and hot mouldings, and regardless of the walnut oil which kind of squeezing process is squeezed out, all must just can reach as clear as crystal qualified walnut oil by refining.But refinery practice comprises alkali refining, decolouring and deodorization step, need to do a series of chemistry and pyroprocessing to the walnut crude oil obtaining through squeezing, therefore the shortcoming of refining process maximum is the color of not only having removed walnut oil, also destruction in various degree nutritive ingredient and the trace element of grease.It is more than the deficiency of existing production technology of walnut oil.
Summary of the invention
The object of the invention is: a kind of alcohol odor type production technology of walnut oil is provided, this production technology of walnut oil has saved refinement step, need in the course of processing, to grease, not carry out any chemistry and pyroprocessing, just can produce and reach limpid, the transparent high standard sweet-smelling walnut oil that GB requires, not only retained the original color of walnut oil, more can guarantee that the nutritive ingredient of walnut oil and trace element are not subject to any destruction.
Object of the present invention can realize by following technical proposals:
This alcohol odor type production technology of walnut oil, is characterized in that comprising following processing step in sequence:
Check raw material walnut → pound walnut kernel → sorting walnut kernel → pack cold press → obtain walnut crude oil → normal temperature aquation → NF filters → obtains finished product walnut oil → filling → check finished product walnut oil → warehouse-in;
Described check raw material walnut step is: after raw material walnut is smashed, acid value and the peroxide value of sampling observation nut-shell and benevolence mixture leach liquor, the check Passing Criteria of raw material walnut is: the acid value (mgKOH/g) of nut-shell and benevolence mixture leach liquor :≤1.0, and peroxide value (mmol/kg) :≤1.0;
Described sorting walnut kernel step is: remove after the walnut kernel of the black Huang of color, select one-level walnut kernel; The check Passing Criteria of described one-level walnut kernel is: the acid value of walnut kernel leach liquor (mgKOH/g) :≤0.5, and peroxide value (mmol/kg) :≤0.5;
Described pack cold press step is: the pull up circuit power supply of connecting hydraulic oil press, under the normal temperature state of 18 ℃-25 ℃, by putting into the charging basket of hydraulic oil press after the one-level walnut kernel raw material threading squeezing bag obtaining through sorting walnut kernel step, after the movable upper top cover of the hydraulic oil press that then closes, start to squeeze walnut oil, during squeezing, first the starting switch manual valve of hydraulic oil press is placed in to hoisting position, about 6-10 minute pressurizes, when the operating pressure of hydraulic oil press is expressed 50MPa, represent that the oil in walnut kernel has gone out only, it is now relief, pull open the movable upper top cover of hydraulic oil press, and continue the starting switch manual valve of hydraulic oil press to be placed in hoisting position, the rising of the piston of hydraulic oil press ejects walnut grouts the barrel of hydraulic oil press, after ejecting walnut grouts, the starting switch manual valve of hydraulic oil press is placed in to lowering position, the piston of hydraulic oil press is descending, during surplus valve sound on hearing Hydraulic oil press machine hydraulic system, or when on seeing its piston of hydraulic oil press, disk exposes its charging basket lower end, represent the descent of piston of hydraulic oil press on earth, then the starting switch manual valve of hydraulic oil press is placed in to mid-way, again repeat above-mentioned charging, pressed, fuel-displaced process, be a circulation by that analogy, the amount of each squeezing dress one-level walnut kernel raw material is 6-8 kilogram, in above-mentioned pack cold press step, the model of described hydraulic oil press is 6YY-230 type,
Described normal temperature hydration step is: the walnut crude oil obtaining after pack cold press step is put into hydration tank, the temperature of walnut crude oil remains on the normal temperature of 18 ℃-25 ℃, speed rapid stirring walnut crude oil with 60 revs/min, and pick and place the salt solution of the walnut crude oil total mass 2% in hydration tank simultaneously, in 20 minutes, slowly join in walnut crude oil, the massfraction of described salt solution is 15%, and the temperature of described salt solution is higher than 10 ℃ of walnut crude oil temperature; Add after rear salt solution, become low rate mixing, with the speed of 30 revs/min, stir 20 minutes, until when in hydration tank, all white size pledges are separated out in grease, stop stirring, staticly settle more than 24 hours, all white size pledges are with water natural sedimentation, normal temperature aquation completes, and has once come unstuck, and then emits the walnut oil on hydration tank top; The model of described hydration tank is JLG-150 type;
Described NF filtration step is: the walnut oil obtaining after normal temperature aquation, under the normal temperature state of 18 ℃-25 ℃, is carried out to filtration treatment by NF series characteristic oil filter, to secondary degumming, protect fragrant, dehydration; The filtration medium of described NF series characteristic oil filter is cotton;
In described check finished product walnut oil step, the check Passing Criteria of finished product walnut oil is: the acid value of finished product walnut oil (mgKOH/g) :≤0.8; Peroxide value (mmol/kg) :≤0.8.
Advantage of the present invention is: this production technology of walnut oil has saved refinement step, need in the course of processing, to grease, not carry out any chemistry and pyroprocessing, only by cold press and simple aquation, filtration step, just can produce and reach limpid, the transparent high standard sweet-smelling walnut oil that GB requires, not only retained the original color of walnut oil, more can guarantee that the nutritive ingredient of walnut oil and trace element are not subject to any destruction.
Embodiment
This alcohol odor type production technology of walnut oil, is characterized in that comprising following processing step in sequence:
Check raw material walnut → pound walnut kernel → sorting walnut kernel → pack cold press → obtain walnut crude oil → normal temperature aquation → NF(nanofiltration) filter → obtain finished product walnut oil → filling → check finished product walnut oil → warehouse-in;
Described check raw material walnut step is: after raw material walnut is smashed, acid value and the peroxide value of sampling observation nut-shell and benevolence mixture leach liquor, the check Passing Criteria of raw material walnut is: the acid value (mgKOH/g) of nut-shell and benevolence mixture leach liquor :≤1.0, and peroxide value (mmol/kg) :≤1.0;
Described sorting walnut kernel step is: remove after the walnut kernel of the black Huang of color, select one-level walnut kernel; The check Passing Criteria of described one-level walnut kernel is: the acid value of walnut kernel leach liquor (mgKOH/g) :≤0.5, and peroxide value (mmol/kg) :≤0.5;
Described pack cold press step is: the pull up circuit power supply of connecting hydraulic oil press, under the normal temperature state of 18 ℃-25 ℃, by putting into the charging basket of hydraulic oil press after the one-level walnut kernel raw material threading squeezing bag obtaining through sorting walnut kernel step, after the movable upper top cover of the hydraulic oil press that then closes, start to squeeze walnut oil, during squeezing, first the starting switch manual valve of hydraulic oil press is placed in to hoisting position, about 6-10 minute pressurizes, when the operating pressure of hydraulic oil press is expressed 50MPa, represent that the oil in walnut kernel has gone out only, it is now relief, pull open the movable upper top cover of hydraulic oil press, and continue the starting switch manual valve of hydraulic oil press to be placed in hoisting position, the rising of the piston of hydraulic oil press ejects walnut grouts the barrel of hydraulic oil press, after ejecting walnut grouts, the starting switch manual valve of hydraulic oil press is placed in to lowering position, the piston of hydraulic oil press is descending, during surplus valve sound on hearing Hydraulic oil press machine hydraulic system, or when on seeing its piston of hydraulic oil press, disk exposes its charging basket lower end, represent the descent of piston of hydraulic oil press on earth, then the starting switch manual valve of hydraulic oil press is placed in to mid-way, again repeat above-mentioned charging, pressed, fuel-displaced process, be a circulation by that analogy, the amount of each squeezing dress one-level walnut kernel raw material is 6-8 kilogram, according to skill level, compressible per hour 8-10 time, in above-mentioned pack cold press step, the model of described hydraulic oil press is 6YY-230 type,
Described normal temperature hydration step is: the walnut crude oil obtaining after pack cold press step is put into hydration tank, the temperature of walnut crude oil remains on the normal temperature of 18 ℃-25 ℃, speed rapid stirring walnut crude oil with 60 revs/min, and pick and place the salt solution of the walnut crude oil total mass 2% in hydration tank simultaneously, in 20 minutes, slowly join in walnut crude oil, the massfraction of described salt solution is 15%, and the temperature of described salt solution is higher than 10 ℃ of walnut crude oil temperature; Add after rear salt solution, become low rate mixing, with the speed of 30 revs/min, stir 20 minutes, until when in hydration tank, all white size pledges are separated out in grease, stop stirring, staticly settle more than 24 hours, all white size pledges are with water natural sedimentation, normal temperature aquation completes, and has once come unstuck, and then emits the walnut oil on hydration tank top; The model of described hydration tank is JLG-150 type; Each normal temperature hydration process, the walnut crude oil amount that can put into hydration tank is 1 ton;
Described NF(nanofiltration) filtration step is: the walnut oil obtaining after normal temperature aquation, under the normal temperature state of 18 ℃-25 ℃, is carried out to filtration treatment by NF series characteristic oil filter, to secondary degumming, protect fragrant, dehydration;
In described check finished product walnut oil step, the check Passing Criteria of finished product walnut oil is: the acid value of finished product walnut oil (mgKOH/g) :≤0.8; Peroxide value (mmol/kg) :≤0.8.
NF(nanofiltration of the present invention) in filtration step, because the filtration medium of NF series characteristic oil filter is cotton, utilize the high principle of water-absorbent, perviousness and density of cotton disposable colloid in walnut oil, impurity, moisture etc. to be filtered out, therefore, any chemical substance is neither added in such filtration, also without pyroprocessing, just can access the limpid bright alcohol odor type walnut oil that meets national standard, retain genuineness and the nutrition of walnut oil.
Claims (1)
1. an alcohol odor type production technology of walnut oil, is characterized in that comprising following processing step in sequence:
Check raw material walnut → pound walnut kernel → sorting walnut kernel → pack cold press → obtain walnut crude oil → normal temperature aquation → NF filters → obtains finished product walnut oil → filling → check finished product walnut oil → warehouse-in;
Described check raw material walnut step is: after raw material walnut is smashed, acid value and the peroxide value of sampling observation nut-shell and benevolence mixture leach liquor, the check Passing Criteria of raw material walnut is: the acid value mgKOH/g of nut-shell and benevolence mixture leach liquor :≤1.0, and peroxide value mmol/kg :≤1.0;
Described sorting walnut kernel step is: remove after the walnut kernel of the black Huang of color, select one-level walnut kernel; The check Passing Criteria of described one-level walnut kernel is: the acid value mgKOH/g of walnut kernel leach liquor :≤0.5, and peroxide value mmol/kg :≤0.5;
Described pack cold press step is: the pull up circuit power supply of connecting hydraulic oil press, under the normal temperature state of 18 ℃-25 ℃, by putting into the charging basket of hydraulic oil press after the one-level walnut kernel raw material threading squeezing bag obtaining through sorting walnut kernel step, after the movable upper top cover of the hydraulic oil press that then closes, start to squeeze walnut oil, during squeezing, first the starting switch manual valve of hydraulic oil press is placed in to hoisting position, pressurization 6-10 minute, when the operating pressure of hydraulic oil press is expressed 50MPa, represent that the oil in walnut kernel has gone out only, it is now relief, pull open the movable upper top cover of hydraulic oil press, and continue the starting switch manual valve of hydraulic oil press to be placed in hoisting position, the rising of the piston of hydraulic oil press ejects walnut grouts the barrel of hydraulic oil press, after ejecting walnut grouts, the starting switch manual valve of hydraulic oil press is placed in to lowering position, the piston of hydraulic oil press is descending, during surplus valve sound on hearing Hydraulic oil press machine hydraulic system, or when on seeing its piston of hydraulic oil press, disk exposes its charging basket lower end, represent the descent of piston of hydraulic oil press on earth, then the starting switch manual valve of hydraulic oil press is placed in to mid-way, again repeat above-mentioned charging, pressed, fuel-displaced process, be a circulation by that analogy, the amount of each squeezing dress one-level walnut kernel raw material is 6-8 kilogram, in above-mentioned pack cold press step, the model of described hydraulic oil press is 6YY-230 type,
Described normal temperature hydration step is: the walnut crude oil obtaining after pack cold press step is put into hydration tank, the temperature of walnut crude oil remains on the normal temperature of 18 ℃-25 ℃, speed rapid stirring walnut crude oil with 60 revs/min, and pick and place the salt solution of the walnut crude oil total mass 2% in hydration tank simultaneously, in 20 minutes, slowly join in walnut crude oil, the massfraction of described salt solution is 15%, and the temperature of described salt solution is higher than 10 ℃ of walnut crude oil temperature; Add after rear salt solution, become low rate mixing, with the speed of 30 revs/min, stir 20 minutes, until when in hydration tank, all white size pledges are separated out in grease, stop stirring, staticly settle more than 24 hours, all white size pledges are with water natural sedimentation, normal temperature aquation completes, and has once come unstuck, and then emits the walnut oil on hydration tank top; The model of described hydration tank is JLG-150 type;
Described NF filtration step is: the walnut oil obtaining after normal temperature aquation, under the normal temperature state of 18 ℃-25 ℃, is carried out to filtration treatment by NF series characteristic oil filter, to secondary degumming, protect fragrant, dehydration; The filtration medium of described NF series characteristic oil filter is cotton;
In described check finished product walnut oil step, the check Passing Criteria of finished product walnut oil is: the acid value mgKOH/g of finished product walnut oil :≤0.8; Peroxide value mmol/kg :≤0.8.
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| CN105907464A (en) * | 2016-06-28 | 2016-08-31 | 陕西日日新生物科技有限公司 | Method for preparing walnut oil |
| CN107541335A (en) * | 2016-06-29 | 2018-01-05 | 迪庆香格里拉舒达有机食品有限公司 | A kind of cold press walnut oil process equipment |
| CN107904007A (en) * | 2017-12-16 | 2018-04-13 | 盐津益康食用油有限责任公司 | A kind of production technology of walnut oil of environmental protection low-residual |
| CN108865423B (en) * | 2018-08-01 | 2022-01-25 | 贵州省核桃研究所 | Method for producing virgin walnut oil by using pinctada |
| CN109504528A (en) * | 2018-11-23 | 2019-03-22 | 靖州县金茶油科技开发有限责任公司 | A kind of pressing method of pecan oil |
| CN110093204A (en) * | 2019-05-14 | 2019-08-06 | 绵阳德生皇食品有限责任公司 | A kind of preparation method of giving off a strong fragrance walnut oil |
| CN111171951A (en) * | 2020-01-10 | 2020-05-19 | 重庆市三品功能食品研究院有限公司 | Preparation method of walnut oil for pregnant women and infants |
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| DK1354518T3 (en) * | 2002-04-15 | 2012-09-03 | Dapeng Li | Nuclear oil from the plant core, method of extracting it, pharmaceutical composition and use thereof |
| 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 |
| CN102293263A (en) * | 2011-07-29 | 2011-12-28 | 甘肃陇新综合商贸有限公司 | Physical low-temperature cold pressing production technology of refined walnut oil |
| CN103146472A (en) * | 2011-12-06 | 2013-06-12 | 汉中永杨医药科技发展有限公司 | Method for preparing eucommia seed oil by low-temperature cold-pressing technology |
| CN102960473B (en) * | 2012-12-26 | 2014-11-05 | 富源县聚农绿色食品开发有限公司 | Method for squeezing and refining walnut oil at low temperature |
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Address after: 056400 Shexian County Development Zone, Handan, Hebei Patentee after: Hebei Golden Dragon agricultural science and Technology Co., Ltd. Address before: 056400 Kaiyuan street, Shexian County economic and Technological Development Zone, Handan, Hebei, China Patentee before: Hebei Huangjinlong Edible Oils Co., Ltd. |