CN109628203A - A kind of processing refinery practice of tea-seed oil - Google Patents
A kind of processing refinery practice of tea-seed oil Download PDFInfo
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- CN109628203A CN109628203A CN201811396250.6A CN201811396250A CN109628203A CN 109628203 A CN109628203 A CN 109628203A CN 201811396250 A CN201811396250 A CN 201811396250A CN 109628203 A CN109628203 A CN 109628203A
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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
- C11B1/02—Pretreatment
- C11B1/04—Pretreatment of vegetable raw material
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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
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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
- C11B3/00—Refining fats or fatty oils
- C11B3/001—Refining fats or fatty oils by a combination of two or more of the means hereafter
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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
- 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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- 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
- C11B3/02—Refining fats or fatty oils by chemical reaction
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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
- C11B3/00—Refining fats or fatty oils
- C11B3/12—Refining fats or fatty oils by distillation
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Abstract
The present invention relates to grease refinement technique fields, and in particular to a kind of processing refinery practice of tea-seed oil, comprising the following steps: (1) is dried under vacuum to the water content of tea seed by mass to 4-7% using far infrared；(2) tea seed after shelling atomized water is passed through to improve；(3) tea seed is placed in curer and bakes；(4) it stands；(5) it is baked in curer；(6) screw press squeezes tea seed after baking；(7) hermetic filtering machine cleans；(8) it distills；(9) depickling；(10) primary decoloration；(11) secondary decolourization；(12) it is dried in vacuo；(13) refined filtration.The present invention has oil yield high, and oil product nutritive value is high, and using the refinery practice of physics, avoids damage and environmental pollution of the chemical refining process to oil quality, meanwhile, have the advantages that preparation step is few, easy to operate, low energy consumption, product quality is high.
Description
Technical field
The present invention relates to grease refinement technique fields, and in particular to a kind of processing refinery practice of tea-seed oil.
Background technique
Oil tea is the big wood of the distinctive main woody edible oil material tree species of south China and the world four originating from China
One of this edible oil materials tree species, China's camellia oleifera lam area account for about 80% or more of woody edible oil charge level product.It is obtained from tea seed
Oil be tea-seed oil, the fatty acid composition of tea-seed oil is similar to table oil rouge-olive oil, and unsaturated fatty acid content is super
80% is crossed, is had very high nutritive value；In oil tea planting process not to fertilize and pesticide, therefore tea-seed oil belongs to natural green
Food.Several functions composition in tea-seed oil improves the immunity of the human body for maintaining the function of cardiovascular system, reduces gallbladder
Sterol, prevention and treatment hypertension have effects that obvious.In addition, traditional medicine thinks, tea-seed oil has clearing away heat and eliminating dampeness, desinsection removing toxic substances
Effect, can clearing stomach ease constipation, eruptive disease abdominal pain, the obstructive intestinal obstruction of acute roundworm etc. can be controlled.
Currently, the acquisition technique of tea-seed oil crude oil, which uses extraction liquefaction substantially or steams, fries squeezing method, the refinery practice of crude oil
Substantially aquation degumming-alkali-refining deacidification-washing-filtering decoloration-high-temperature steam deodorization-winterization degreasing-product oil is used.It is logical
It crosses high temperature and steams the albumen and immobilized artificial membrane fried and can destroy oil droplet outer layer, to improve oil yield, and extracting technology then will lead to finished product
Dissolvent residual in oil.Processing temperature is steamed generally at 100 DEG C -140 DEG C, and frying processing temperature is adopted generally at 200 DEG C -300 DEG C
For the chamber hall temperature squeezed with pressafiner generally at 200 DEG C -250 DEG C, above-mentioned process can generate carcinogenic substance benzo (a)
Pyrene, while extraction and steaming and frying technique can make to improve acid value there are a large amount of free fatty acids in oil, so as to cause peroxide in oil
Compound largely generates.Chemical refining needs to add in lye and free fatty acid, high temperature deodorization and etc., it can make in product oil
The nutrition contents such as vitamin content, phytosterol are down to extremely low, have both destroyed the nutrition of camellia seed oil, the row of alkali refining waste liquid
It puts and will lead to environmental pollution.
In view of the above-mentioned problems, proposing a kind of low-temperature physics of tea-seed oil in China Patent Publication No. CN102304421B
Cold pressing process mainly includes tea seed after-ripening, seed selection, cold press acquisition crude oil, crude oil coarse filtration, filter at low temperature, carries out after filter at low temperature
Medium temperature dehydration and decolorization: the tea-seed oil after filter at low temperature being placed in dehydration barrel and is stirred, and the water of tea-seed oil 3-7% weight is then added,
Stirring in dehydration barrel without water mist until, the second dehydration barrel is entered after multi-filtering and is stirred, vapor dehydration and decolorization to moisture contains
Amount is 0, and lock is turned on the switch at 80 DEG C -100 DEG C, obtains finished product tea-seed oil after multi-filtering.But this technique pre-treatment is only with low temperature
After-ripening handles without frying or other means, cannot destroy grease outer layer albumen and immobilized artificial membrane, oil yield is lower.
Based on this, it is necessary to a kind of processing refinement method of rapeseed oil is provided, to solve problems of the prior art.
Summary of the invention
In view of the above-mentioned analysis to the prior art, the present invention provides a kind of processing refinery practice of tea-seed oil, has fuel-displaced
Rate is high, and oil product nutritive value is high, and using the refinery practice of physics, avoid damage of the chemical refining process to oil quality and
Environmental pollution, meanwhile, have the advantages that preparation step is few, easy to operate, low energy consumption, product quality is high.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
A kind of processing refinery practice of tea-seed oil, comprising the following steps:
(1) mature tea seed is chosen, water content 4-7% is dried under vacuum to using far infrared, it is de- that the tea seed after drying is sent into hulling machine
Shell；
(2) atomized water that tea seed after shelling is passed through 50 DEG C is improved, is passed through atomized water while stirring, the tea seed temperature after conditioning
Degree is 65-75 DEG C, water content 6-10%, discharging cooling；
(3) tea seed after conditioning is placed in curer and is baked；
(4) after baking, tea seed is stood into 20-30min at room temperature；
(5) it will be baked in step (4) treated tea seed is again placed in curer, and in baking process, spray water is twice；
(6) tea seed after baking is squeezed using screw press, press chamber temperature is 80-110 DEG C, oil outlet temperature 60-100
℃；
(7) tea-seed oil squeezed out is removed into solid impurity by hermetic filtering machine；
(8) filtered tea-seed oil is sent into multiple-grade molecular distillation system and is distilled；
(9) tea-seed oil after distillation is put into reactor tank, and tea-seed oil weight 0.5-1% deacidification agent is added, in 150-200rpm
Lower stirring 10-20min, is finally removed deacidification agent with leaf-type filter；
(10) primary decoloration: tea-seed oil is pumped into double effect concentration dehydration evaporator, the water of tea-seed oil 1-3% weight is added, carries out
One effect is concentrated by evaporation, and temperature is controlled at 70-80 DEG C, the 0.07-0.09MPa that vacuum pressure is negative, at 200-250rpm, evaporation
Being concentrated into concentration is 96-98%；
(11) secondary decolourization: the qualified tea-seed oil of primary decoloration is entered in two effect thickening evaporators, temperature is controlled in 90-
100 DEG C, the 0.04-0.06MPa that vacuum pressure is negative, at 300-350rpm, being concentrated by evaporation to concentration is 99-100%；
(12) step (11) treated tea-seed oil is sent into vacuum desiccator and is dried, until water content is lower than in tea-seed oil
0.2%；
(13) using refined filtration filter processing dehydration tea-seed oil, temperature at 20-40 DEG C, protect after 0.1-0.5MPa, filtering by pressure
It deposits to get finished product.
Preferably, the vacuum drying vacuum degree of far infrared in the step (1) is 0.06-0.12MPa, far infrared is shone
Penetrating power density is 2.5-5.5w/g, handles time 6min, and temperature is 80 DEG C.
Preferably, 120-140 DEG C of stoving temperature in the step (3), baking time 2-5min.
Preferably, the baking mode in the step (3) is that far infrared bakes, roasts the machine of decocting baking, baking oven heating bakes
One of.
Preferably, 80-100 DEG C of stoving temperature, baking time 0.5-1h in the step (5), each amount of water sprayed is
The 3-6% of tea seed weight.
Preferably, multiple-grade molecular distillation system described in the step (8) is continuity three-level molecular distillation system.
Preferably, the inlet amount of the continuity three-level molecular distillation system is controlled in 8L/min；Level-one distiller tune
105 DEG C -125 DEG C of temperature of section, vacuum degree 350-450Pa；Secondary distillation device adjusts 140 DEG C -160 DEG C of temperature, vacuum degree 15-
25Pa；Three-level rectifier adjusts 180 DEG C -200 DEG C of temperature, vacuum degree 5-10Pa.
Preferably, deacidification agent in the step (9) is alkaline microcrystalline cellulose, and the alkaline microcrystalline cellulose by with
Lower section method is made: sodium hydroxide and microcrystalline cellulose powder is uniformly mixed in pulverizer by the mass ratio of 1:5, and with
The specific breakage rate of 5000rpm crushes 30s, it is dry to get.
Preferably, it is 6 that atlapulgite, sepiolite and the na-montmorillonite in the step (10), which are according to mass ratio:
The mixture of 2:1 composition.
Compared with prior art, the present invention have it is following the utility model has the advantages that
The present invention can dry tea seed at relatively low temperature, prevent high temperature by way of far infrared vacuum drying
The nutriment beneficial to human body in tea seed, and modifier treatment is carried out to the tea seed after shelling by spraying atomized water, and match
To bake processing twice, tea seed can be made to expand, so that grease outer layer albumen and immobilized artificial membrane are destroyed, relative to traditional microwave vacuum
Drying mode, atomized water of the invention is quenched and baking twice handles the dissolution for being more conducive to oil droplet, improves the fuel-displaced of tea seed
The case where rate, and being squeezed at a lower temperature by using screw press, nutriment does not lose in guaranteeing tea seed,
Reduce squeezing residual oil content；
Secondly, the present invention does not carry out decolorization using adsorbents such as traditional atlapulgites, but use double effect concentration de-
Water evaporation mode carries out decolorization, and this addresses the problem the chemical substances such as atlapulgite and tea-seed oil directly to contact bring
Pollution, while also guaranteeing that the nutriment in tea-seed oil will not influence decoloration and lose；
The present invention can effectively remove free fatty acid, oil peroxidation in tea-seed oil by using three-level molecular distillation mode
Product, moisture and other low-boiling point materials provide the quality of tea-seed oil to reduce the harmful substance in tea-seed oil；
In addition, the deacidification agent that the present invention uses has preferable adsorption effect to free fatty acid in cold pressing tea seed, can have
Effect removes the free fatty acid in tea seed, to improve the quality of tea seed；
Rape oil-pressing and physical refining process use physical dryness, squeezing and refinery practice, whole process green in the present invention
Environmental protection, oil yield is high, and product oil micronutrient element retention rate is high, and oil product nutritive value is high.
Specific embodiment
Form by the following examples is described in further detail above content of the invention again, but should not be by this
The range for being interpreted as the above-mentioned theme of the present invention is only limitted to following embodiment, all technologies based on realization belonging to above content of the present invention
It all belongs to the scope of the present invention.
Embodiment 1
The processing refinery practice of the tea-seed oil of the present embodiment, comprising the following steps:
(1) mature tea seed is chosen, water content 4% is dried under vacuum to using far infrared, the tea seed after drying is sent into hulling machine shelling；
(2) atomized water that tea seed after shelling is passed through 50 DEG C is improved, is passed through atomized water while stirring, the tea seed temperature after conditioning
Degree is 65 DEG C, water content 6%, discharging cooling；
(3) tea seed after conditioning is placed in curer and is baked；
(4) after baking, tea seed is stood into 20min at room temperature；
(5) it will be baked in step (4) treated tea seed is again placed in curer, and in baking process, spray water is twice；
(6) tea seed after baking is squeezed using screw press, press chamber temperature is 80 DEG C, and oil outlet temperature is 60 DEG C；
(7) tea-seed oil squeezed out is removed into solid impurity by hermetic filtering machine；
(8) filtered tea-seed oil is sent into multiple-grade molecular distillation system and is distilled；
(9) tea-seed oil after distillation is put into reactor tank, and 0.5% deacidification agent of tea-seed oil weight is added, stirred at 150rpm
10min is finally removed deacidification agent with leaf-type filter；
(10) primary decoloration: tea-seed oil is pumped into double effect concentration dehydration evaporator, the water of 1% weight of tea-seed oil is added, carries out one
Effect is concentrated by evaporation, and temperature is controlled at 70 DEG C, the 0.07MPa that vacuum pressure is negative, and at 200 rpm, evaporation and concentration to concentration is
96%；
(11) secondary decolourization: the qualified tea-seed oil of primary decoloration is entered in two effect thickening evaporators, temperature is controlled 90
DEG C, the 0.04MPa that vacuum pressure is negative, at 300 rpm, being concentrated by evaporation to concentration is 99%
(12) step (11) treated tea-seed oil is sent into vacuum desiccator and is dried, until water content is lower than in tea-seed oil
0.2%；
(13) using refined filtration filter processing dehydration tea-seed oil, temperature at 20 DEG C, pressure saved after 0.1MPa, filtering to get
Finished product.
Wherein, the vacuum drying vacuum degree of far infrared in the step (1) is 0.06MPa, and far-infrared radiation power is close
Degree is 2.5w/g, handles time 6min, and temperature is 80 DEG C.
Wherein, 120 DEG C of stoving temperature in the step (3), baking time 2min.
Wherein, the baking mode in the step (3) is during far infrared bakes, roasts the machine of decocting baking, baking oven heating bakes
It is a kind of.
Wherein, 80 DEG C of stoving temperature, baking time 0.5h in the step (5), each amount of water sprayed is tea seed weight
3%。
Wherein, multiple-grade molecular distillation system described in the step (8) is continuity three-level molecular distillation system.
Wherein, the inlet amount of the continuity three-level molecular distillation system is controlled in 8L/min；Level-one distiller adjusts temperature
105 DEG C of degree, vacuum degree 350Pa；Secondary distillation device adjusts 140 DEG C of temperature, vacuum degree 15Pa；Three-level rectifier adjusts temperature
180 DEG C, vacuum degree 5Pa.
Wherein, the deacidification agent in the step (9) is alkaline microcrystalline cellulose, and the alkaline microcrystalline cellulose is by with lower section
Method is made: sodium hydroxide and microcrystalline cellulose powder being uniformly mixed in pulverizer by the mass ratio of 1:5, and with 5000rpm
Specific breakage rate crush 30s, it is dry to get.
Embodiment 2
The processing refinery practice of the tea-seed oil of the present embodiment, comprising the following steps:
(1) mature tea seed is chosen, water content 7% is dried under vacuum to using far infrared, the tea seed after drying is sent into hulling machine shelling；
(2) atomized water that tea seed after shelling is passed through 50 DEG C is improved, is passed through atomized water while stirring, the tea seed temperature after conditioning
Degree is 75 DEG C, water content 10%, discharging cooling；
(3) tea seed after conditioning is placed in curer and is baked；
(4) after baking, tea seed is stood into 30min at room temperature；
(5) it will be baked in step (4) treated tea seed is again placed in curer, and in baking process, spray water is twice；
(6) tea seed after baking is squeezed using screw press, press chamber temperature is 110 DEG C, and oil outlet temperature is 100 DEG C；
(7) tea-seed oil squeezed out is removed into solid impurity by hermetic filtering machine；
(8) filtered tea-seed oil is sent into multiple-grade molecular distillation system and is distilled；
(9) tea-seed oil after distillation is put into reactor tank, and 1% deacidification agent of tea-seed oil weight is added, stirred at 200 rpm
20min is finally removed deacidification agent with leaf-type filter；
(10) primary decoloration: tea-seed oil is pumped into double effect concentration dehydration evaporator, the water of 3% weight of tea-seed oil is added, carries out one
Effect is concentrated by evaporation, and temperature is controlled at 80 DEG C, the 0.09MPa that vacuum pressure is negative, and at 250rpm, evaporation and concentration to concentration is
98%；
(11) secondary decolourization: the qualified tea-seed oil of primary decoloration is entered in two effect thickening evaporators, temperature is controlled 100
DEG C, the 0.06MPa that vacuum pressure is negative, at 350rpm, being concentrated by evaporation to concentration is 100%；
(12) step (11) treated tea-seed oil is sent into vacuum desiccator and is dried, until water content is lower than in tea-seed oil
0.2%；
(13) using refined filtration filter processing dehydration tea-seed oil, temperature at 40 DEG C, pressure saved after 0.5MPa, filtering to get
Finished product.
Wherein, the vacuum drying vacuum degree of far infrared in the step (1) is 0.12MPa, and far-infrared radiation power is close
Degree is 5.5w/g, handles time 6min, and temperature is 80 DEG C.
Wherein, 1140 DEG C of stoving temperature in the step (3), baking time 5min.
Wherein, the baking mode in the step (3) is during far infrared bakes, roasts the machine of decocting baking, baking oven heating bakes
It is a kind of.
Wherein, 100 DEG C of stoving temperature, baking time 1h in the step (5), each amount of water sprayed is tea seed weight
6%。
Wherein, multiple-grade molecular distillation system described in the step (8) is continuity three-level molecular distillation system.
Wherein, the inlet amount of the continuity three-level molecular distillation system is controlled in 8L/min；Level-one distiller adjusts temperature
125 DEG C of degree, vacuum degree 450Pa；Secondary distillation device adjusts 160 DEG C of temperature, vacuum degree 25Pa；Three-level rectifier adjusts temperature
200 DEG C, vacuum degree 10Pa.
Wherein, the deacidification agent in the step (9) is alkaline microcrystalline cellulose, and the alkaline microcrystalline cellulose is by with lower section
Method is made: sodium hydroxide and microcrystalline cellulose powder being uniformly mixed in pulverizer by the mass ratio of 1:5, and with 5000rpm
Specific breakage rate crush 30s, it is dry to get.
Embodiment 3
The processing refinery practice of the tea-seed oil of the present embodiment, comprising the following steps:
(1) mature tea seed is chosen, water content 5.5% is dried under vacuum to using far infrared, it is de- that the tea seed after drying is sent into hulling machine
Shell；
(2) atomized water that tea seed after shelling is passed through 50 DEG C is improved, is passed through atomized water while stirring, the tea seed temperature after conditioning
Degree is 70 DEG C, water content 8%, discharging cooling；
(3) tea seed after conditioning is placed in curer and is baked；
(4) after baking, tea seed is stood into 25min at room temperature；
(5) it will be baked in step (4) treated tea seed is again placed in curer, and in baking process, spray water is twice；
(6) tea seed after baking is squeezed using screw press, press chamber temperature is 95 DEG C, and oil outlet temperature is 80 DEG C；
(7) tea-seed oil squeezed out is removed into solid impurity by hermetic filtering machine；
(8) filtered tea-seed oil is sent into multiple-grade molecular distillation system and is distilled；
(9) tea-seed oil after distillation is put into reactor tank, and 0.7% deacidification agent of tea-seed oil weight is added, stirred at 180rpm
15min is finally removed deacidification agent with leaf-type filter；
(10) primary decoloration: tea-seed oil is pumped into double effect concentration dehydration evaporator, the water of 2% weight of tea-seed oil is added, carries out one
Effect is concentrated by evaporation, and temperature is controlled at 75 DEG C, the 0.08MPa that vacuum pressure is negative, and at 225rpm, evaporation and concentration to concentration is
97%；
(11) secondary decolourization: the qualified tea-seed oil of primary decoloration is entered in two effect thickening evaporators, temperature is controlled 95
DEG C, the 0.05MPa that vacuum pressure is negative, at 320rpm, being concentrated by evaporation to concentration is 99.5%；
(11) step (10) treated tea-seed oil is sent into vacuum desiccator and is dried, until water content is lower than in tea-seed oil
0.2%；
(12) using refined filtration filter processing dehydration tea-seed oil, temperature at 30 DEG C, pressure saved after 0.3MPa, filtering to get
Finished product.
Wherein, the vacuum drying vacuum degree of far infrared in the step (1) is 0.09MPa, and far-infrared radiation power is close
Degree is 3.0w/g, handles time 6min, and temperature is 80 DEG C.
Wherein, 130 DEG C of stoving temperature in the step (3), baking time 3.5min.
Wherein, the baking mode in the step (3) is during far infrared bakes, roasts the machine of decocting baking, baking oven heating bakes
It is a kind of.
Wherein, 90 DEG C of stoving temperature, baking time 0.7h in the step (5), each amount of water sprayed is tea seed weight
4.5%。
Wherein, multiple-grade molecular distillation system described in the step (8) is continuity three-level molecular distillation system.
Wherein, the inlet amount of the continuity three-level molecular distillation system is controlled in 8L/min；Level-one distiller adjusts temperature
115 DEG C of degree, vacuum degree 400Pa；Secondary distillation device adjusts 150 DEG C of temperature, vacuum degree 20Pa；Three-level rectifier adjusts temperature
190 DEG C, vacuum degree 7Pa.
Wherein, the deacidification agent in the step (9) is alkaline microcrystalline cellulose, and the alkaline microcrystalline cellulose is by with lower section
Method is made: sodium hydroxide and microcrystalline cellulose powder being uniformly mixed in pulverizer by the mass ratio of 1:5, and with 5000rpm
Specific breakage rate crush 30s, it is dry to get.
Embodiment 4
The processing refinery practice of the tea-seed oil of the present embodiment, comprising the following steps:
(1) mature tea seed is chosen, water content 5% is dried under vacuum to using far infrared, the tea seed after drying is sent into hulling machine shelling；
(2) atomized water that tea seed after shelling is passed through 50 DEG C is improved, is passed through atomized water while stirring, the tea seed temperature after conditioning
Degree is 68 DEG C, water content 7%, discharging cooling；
(3) tea seed after conditioning is placed in curer and is baked；
(4) after baking, tea seed is stood into 22min at room temperature；
(5) it will be baked in step (4) treated tea seed is again placed in curer, and in baking process, spray water is twice；
(6) tea seed after baking is squeezed using screw press, press chamber temperature is 5 DEG C, and oil outlet temperature is 65 DEG C；
(7) tea-seed oil squeezed out is removed into solid impurity by hermetic filtering machine；
(8) filtered tea-seed oil is sent into multiple-grade molecular distillation system and is distilled；
(9) tea-seed oil after distillation is put into reactor tank, and 0.6% deacidification agent of tea-seed oil weight is added, stirred at 160rpm
12min is finally removed deacidification agent with leaf-type filter；
(10) primary decoloration: tea-seed oil is pumped into double effect concentration dehydration evaporator, the water of 1.5% weight of tea-seed oil is added, carries out
One effect is concentrated by evaporation, and temperature is controlled at 72 DEG C, the 0.07MPa that vacuum pressure is negative, and at 220rpm, evaporation and concentration to concentration is
96.5%；
(11) secondary decolourization: the qualified tea-seed oil of primary decoloration is entered in two effect thickening evaporators, temperature is controlled 93
DEG C, the 0.04MPa that vacuum pressure is negative, at 310rpm, being concentrated by evaporation to concentration is 99%；
(12) step (11) treated tea-seed oil is sent into vacuum desiccator and is dried, until water content is lower than in tea-seed oil
0.2%；
(13) using refined filtration filter processing dehydration tea-seed oil, temperature at 25 DEG C, pressure saved after 0.2MPa, filtering to get
Finished product.
Wherein, the vacuum drying vacuum degree of far infrared in the step (1) is 0.07MPa, and far-infrared radiation power is close
Degree is 3.0w/g, handles time 6min, and temperature is 80 DEG C.
Wherein, 125 DEG C of stoving temperature in the step (3), baking time 3min.
Wherein, the baking mode in the step (3) is during far infrared bakes, roasts the machine of decocting baking, baking oven heating bakes
It is a kind of.
Wherein, 85 DEG C of stoving temperature, baking time 0.6h in the step (5), each amount of water sprayed is tea seed weight
4%。
Wherein, multiple-grade molecular distillation system described in the step (8) is continuity three-level molecular distillation system.
Wherein, the inlet amount of the continuity three-level molecular distillation system is controlled in 8L/min；Level-one distiller adjusts temperature
110 DEG C of degree, vacuum degree 380Pa；Secondary distillation device adjusts 145 DEG C of temperature, vacuum degree 18Pa；Three-level rectifier adjusts temperature
185 DEG C, vacuum degree 6Pa.
Wherein, the deacidification agent in the step (9) is alkaline microcrystalline cellulose, and the alkaline microcrystalline cellulose is by with lower section
Method is made: sodium hydroxide and microcrystalline cellulose powder being uniformly mixed in pulverizer by the mass ratio of 1:5, and with 5000rpm
Specific breakage rate crush 30s, it is dry to get.
Embodiment 5
The processing refinery practice of the tea-seed oil of the present embodiment, comprising the following steps:
(1) mature tea seed is chosen, water content 6% is dried under vacuum to using far infrared, the tea seed after drying is sent into hulling machine shelling；
(2) atomized water that tea seed after shelling is passed through 50 DEG C is improved, is passed through atomized water while stirring, the tea seed temperature after conditioning
Degree is 72 DEG C, water content 9%, discharging cooling；
(3) tea seed after conditioning is placed in curer and is baked；
(4) after baking, tea seed is stood into 28min at room temperature；
(5) it will be baked in step (4) treated tea seed is again placed in curer, and in baking process, spray water is twice；
(6) tea seed after baking is squeezed using screw press, press chamber temperature is 105 DEG C, and oil outlet temperature is 95 DEG C；
(7) tea-seed oil squeezed out is removed into solid impurity by hermetic filtering machine；
(8) filtered tea-seed oil is sent into multiple-grade molecular distillation system and is distilled；
(9) tea-seed oil after distillation is put into reactor tank, and 0.9% deacidification agent of tea-seed oil weight is added, stirred at 190rpm
18min is finally removed deacidification agent with leaf-type filter；
(10) primary decoloration: tea-seed oil is pumped into double effect concentration dehydration evaporator, the water of 2.5% weight of tea-seed oil is added, carries out
One effect is concentrated by evaporation, and temperature is controlled at 78 DEG C, the 0.09MPa that vacuum pressure is negative, and at 2400rpm, is concentrated by evaporation to concentration
It is 97.5%；
(11) secondary decolourization: the qualified tea-seed oil of primary decoloration is entered in two effect thickening evaporators, temperature is controlled 98
DEG C, the 0.06MPa that vacuum pressure is negative, at 340rpm, being concentrated by evaporation to concentration is 99.8%；
(12) step (11) treated tea-seed oil is sent into vacuum desiccator and is dried, until water content is lower than in tea-seed oil
0.2%；
(13) using refined filtration filter processing dehydration tea-seed oil, temperature at 35 DEG C, pressure saved after 0.4MPa, filtering to get
Finished product.
Wherein, the vacuum drying vacuum degree of far infrared in the step (1) is 0.10MPa, and far-infrared radiation power is close
Degree is 5.0w/g, handles time 6min, and temperature is 80 DEG C.
Wherein, 135 DEG C of stoving temperature in the step (3), baking time 4min.
Wherein, the baking mode in the step (3) is during far infrared bakes, roasts the machine of decocting baking, baking oven heating bakes
It is a kind of.
Wherein, 95 DEG C of stoving temperature, baking time 0.9h in the step (5), each amount of water sprayed is tea seed weight
5%。
Wherein, multiple-grade molecular distillation system described in the step (8) is continuity three-level molecular distillation system.
Wherein, the inlet amount of the continuity three-level molecular distillation system is controlled in 8L/min；Level-one distiller adjusts temperature
120 DEG C of degree, vacuum degree 420Pa；Secondary distillation device adjusts 155 DEG C of temperature, vacuum degree 22Pa；Three-level rectifier adjusts temperature
195 DEG C, vacuum degree 9Pa.
Wherein, the deacidification agent in the step (9) is alkaline microcrystalline cellulose, and the alkaline microcrystalline cellulose is by with lower section
Method is made: sodium hydroxide and microcrystalline cellulose powder being uniformly mixed in pulverizer by the mass ratio of 1:5, and with 5000rpm
Specific breakage rate crush 30s, it is dry to get.
Comparative example 1
Drier directly will be changed into using far infrared vacuum drying, other steps and method and embodiment 1 are unanimously.
Comparative example 2
In addition to saving baking step, other steps and method and embodiment 1 are unanimously.
Comparative example 3
It changes three-level molecular distillation into first order molecular distillation, other steps and method and embodiment 1 is consistent.
Comparative example 4
Primary decoloration and secondary decolourization step are changed into atlapulgite and decolourized, other steps and method and embodiment 1 are unanimously.
Experimental example 1
Level-one tea seed oil standard (GB11765-2003) is squeezed according to country, acid value, peroxide to tea-seed oil produced by the present invention
The quality index such as change value, moisture and volatile matter content, insoluble impurities, saponified matter content and 280 DEG C of heat runs are measured, concrete outcome
As shown in table 1.
Table 1
| Index | Tea-seed oil of the present invention | Tea seed squeezes oil standard |
| Acid value (mgKOH/g) | 0.36 | 1.0 |
| Peroxide value (mmol/kg) | 1.51 | 6 |
| Moisture and volatile matter content (%) | 0.05 | 0.1 |
| 280 heat runs | It darkens, no precipitate | Without precipitate, yellow value is constant, and red value increases less than 0.4 |
| Insoluble impurities (%) | 0.03 | 0.05 |
| Saponified matter content (%) | It is not detected | 0.03 |
As shown in Table 1, tea-seed oil produced by the present invention acid value, peroxide value, moisture and volatile matter content, insoluble impurities, contain soap
The preferable tea-seed oil of quality such as amount and 280 DEG C of heat runs.
Experimental example 2
Oil yield, content of phospholipid, the unsaturated fatty acid of tea-seed oil made from the method for embodiment 1-5 and comparative example 1-4 are contained
Amount, vitamin content are measured, shown in concrete outcome table 2.
Table 2
| Index | Oil yield (%) | Content of phospholipid (mg/kg) | Unsaturated fatty acid content (mg/kg) | Vitamin content (mg/kg) |
| Embodiment 1 | 95.9 | 20 | 68 | 752 |
| Embodiment 2 | 96.6 | 17 | 71 | 767 |
| Embodiment 3 | 97.1 | 15 | 75 | 783 |
| Embodiment 4 | 95.3 | 18 | 73 | 772 |
| Embodiment 5 | 96.8 | 16 | 70 | 768 |
| Comparative example 1 | 91.3 | 27 | 55 | 632 |
| Comparative example 2 | 89.6 | 31 | 51 | 612 |
| Comparative example 3 | 90.5 | 37 | 48 | 626 |
| Comparative example 4 | 88.2 | 36 | 50 | 608 |
As shown in Table 1, the method for the refinement tea-seed oil of 1-5 of the embodiment of the present invention is with having in oil yield height and tea-seed oil
Beneficial ingredient unsaturated fat and the high advantage of vitamin content, and by comparative example 1-4 it is found that the present invention is done by far infrared vacuum
Dry, baking twice, three-level molecular distillation mode, primary decoloration can improve oil yield, unsaturation with secondary decolourization combination
Content of phospholipid in fatty acid and vitamin content and oil product.
In conclusion the present invention provides a kind of processing refinery practice of tea-seed oil, there is oil yield height, oil product nutritive value
Height, and using the refinery practice of physics, damage and environmental pollution of the chemical refining process to oil quality are avoided, meanwhile, tool
Have the advantages that preparation step is few, easy to operate, low energy consumption, product quality is high.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, although referring to aforementioned reality
Applying example, invention is explained in detail, for those skilled in the art, still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features.It is all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of processing refinery practice of tea-seed oil, which comprises the following steps:
(1) mature tea seed is chosen, water content 4-7% is dried under vacuum to using far infrared, it is de- that the tea seed after drying is sent into hulling machine
Shell；
(2) atomized water that tea seed after shelling is passed through 50 DEG C is improved, is passed through atomized water while stirring, the tea seed temperature after conditioning
Degree is 65-75 DEG C, water content 6-10%, discharging cooling；
(3) tea seed after conditioning is placed in curer and is baked；
(4) after baking, tea seed is stood at room temperature；
(5) it will be baked in step (4) treated tea seed is again placed in curer, and in baking process, spray water is twice；
(6) tea seed after baking is squeezed using screw press, press chamber temperature is 80-110 DEG C, oil outlet temperature 60-100
℃；
(7) tea-seed oil squeezed out is removed into solid impurity by hermetic filtering machine；
(8) filtered tea-seed oil is sent into multiple-grade molecular distillation system and is distilled；
(9) tea-seed oil after distillation is put into reactor tank, and tea-seed oil weight 0.5-1% deacidification agent is added, in 150-200rpm
Lower stirring 10-20min, is finally removed deacidification agent with leaf-type filter；
(10) primary decoloration: tea-seed oil is pumped into double effect concentration dehydration evaporator, the water of tea-seed oil 1-3% weight is added, carries out
One effect is concentrated by evaporation, and temperature is controlled at 70-80 DEG C, the 0.07-0.09MPa that vacuum pressure is negative, at 200-250rpm, evaporation
Being concentrated into concentration is 96-98%；
(11) secondary decolourization: the qualified tea-seed oil of primary decoloration is entered in two effect thickening evaporators, temperature is controlled in 90-
100 DEG C, the 0.04-0.06MPa that vacuum pressure is negative, at 300-350rpm, being concentrated by evaporation to concentration is 99-100%；
(12) step (11) treated tea-seed oil is sent into vacuum desiccator and is dried, until water content is lower than in tea-seed oil
0.2%；
(13) using refined filtration filter processing dehydration tea-seed oil, temperature at 20-40 DEG C, protect after 0.1-0.5MPa, filtering by pressure
It deposits to get finished product.
2. the processing refinery practice of tea-seed oil according to claim 1, which is characterized in that remote red in the step (1)
Outer vacuum drying vacuum degree is 0.06-0.12MPa, and far-infrared radiation power density is 2.5-5.5w/g, handles time 6min,
Temperature is 80 DEG C.
3. the processing refinery practice of tea-seed oil according to claim 1, which is characterized in that the baking in the step (3)
120-140 DEG C of temperature, baking time 2-5min.
4. the processing refinery practice of tea-seed oil according to claim 1, which is characterized in that the baking in the step (3)
Mode is far infrared baking, roasts one of the machine of decocting baking, baking oven heating baking.
5. the processing refinery practice of tea-seed oil according to claim 1, which is characterized in that the tea seed in the step (4)
20-30min is stood at room temperature.
6. the processing refinery practice of tea-seed oil according to claim 1, which is characterized in that bake temperature in the step (5)
80-100 DEG C, baking time 0.5-1h of degree, each amount of water sprayed are the 3-6% of tea seed weight.
7. the processing refinery practice of tea-seed oil according to claim 1, which is characterized in that more described in the step (8)
Grade molecule Distallation systm is continuity three-level molecular distillation system.
8. the processing refinery practice of tea-seed oil according to claim 1, which is characterized in that the continuity three-level molecule steams
The inlet amount for evaporating system is controlled in 8L/min；Level-one distiller adjusts 105 DEG C -125 DEG C of temperature, vacuum degree 350-450Pa；Two
Grade distiller adjusts 140 DEG C -160 DEG C of temperature, vacuum degree 15-25Pa；Three-level rectifier adjusts 180 DEG C -200 DEG C of temperature, vacuum
Degree is 5-10Pa.
9. the processing refinery practice of tea-seed oil according to claim 1, which is characterized in that the depickling in the step (9)
Agent is alkaline microcrystalline cellulose, and the alkaline microcrystalline cellulose is made by following methods: by sodium hydroxide and microcrystal cellulose powder
End is uniformly mixed in pulverizer by the mass ratio of 1:5, and crushes 30s with the specific breakage rate of 5000rpm, it is dry to get.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877133A (en) * | 2021-01-05 | 2021-06-01 | 贵州乔盛生物科技有限公司 | Tea oil extraction method |
| CN113308296A (en) * | 2021-06-08 | 2021-08-27 | 长沙中战茶油集团有限公司 | Preparation method of direct-drinking tea oil and tea oil |
| CN113528238A (en) * | 2021-08-31 | 2021-10-22 | 武汉绿林茶籽油有限公司 | Method for reducing plasticizer content in tea seed oil |
-
2018
- 2018-11-22 CN CN201811396250.6A patent/CN109628203A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112877133A (en) * | 2021-01-05 | 2021-06-01 | 贵州乔盛生物科技有限公司 | Tea oil extraction method |
| CN113308296A (en) * | 2021-06-08 | 2021-08-27 | 长沙中战茶油集团有限公司 | Preparation method of direct-drinking tea oil and tea oil |
| CN113308296B (en) * | 2021-06-08 | 2023-11-21 | 长沙中战茶油集团有限公司 | Preparation method of direct drinking tea oil and tea oil |
| CN113528238A (en) * | 2021-08-31 | 2021-10-22 | 武汉绿林茶籽油有限公司 | Method for reducing plasticizer content in tea seed oil |
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