CN102618380B - Method for removing oil tea seed coats - Google Patents
Method for removing oil tea seed coats Download PDFInfo
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- CN102618380B CN102618380B CN 201210098236 CN201210098236A CN102618380B CN 102618380 B CN102618380 B CN 102618380B CN 201210098236 CN201210098236 CN 201210098236 CN 201210098236 A CN201210098236 A CN 201210098236A CN 102618380 B CN102618380 B CN 102618380B
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Abstract
The invention provides a method for removing oil tea seed coats with high coat removing rate and good integrity. The method comprises the following steps of: (1) raw material pretreatment: taking dry oil tea fruits, and removing oil tea fruit shells by using a shelling machine to obtain shelled oil tea seeds; (2) cold treatment: putting the shelled oil tea seeds into a fluidized monomer instant freezer, and performing fluidized instant freezing for 5 to 10 minutes at the temperature of between 30 DEG C below zero and 40 DEG C below zero to obtain cold oil tea seeds; (3) thermal treatment: quickly heating the cold oil tea seeds to the temperature of between 150 and 200 DEG C through infrared, and performing thermal treatment for 2 to 4 minutes to obtain hot oil tea seeds; and (4) coat removal: putting the hot oil tea seeds into a crusher, crushing and removing coats by using roll pair differential, and separating the coats from kernels through wind. The method has the advantages of simple process, high coat removal rate and good integrity. The coat removed oil tea seeds obtained by the method are particularly suitable for processing low-temperature squeezed tea oil, and the processed tea oil has good color and high quality and has market competitiveness.
Description
Technical field
The invention belongs to grease processing technology field, be specifically related to a kind of method of removing the tea seed underwear.
Background technology
Tea oil tree is the woody oleiferous plants plant that is grown in China southern hills area, is one of the world's four big woody oleiferous plants.According to statistics, more than 450 ten thousand hectares of the existing camellia oleifera lams of China are produced surplus the tea seed 100 ten thousand tons per year.Tea seed is the seed of tea oil tree, comprises shell, underwear (namely planting skin) and seed benevolence three part-structures.Though shell is harder, dry back is easy to remove by peeler; And the underwear wall is thin and be close to seed benevolence, so ordinary method is difficult to seed Renhe underwear separately.Tea seed oil-containing 25~30% mainly concentrates in the tea seed kernel, and oil-containing is very few in the shell, usually about 0.5%.Best in quality by the tea oil that tea seed extracts, its oleic acid and linoleic acid content are more than 90%, the nutritive ingredient that also contains needed by human such as squalene, have effects such as tangible prevention cardiovascula arteriosclerosis, hypotensive, reducing blood-fat, being to advocate the edible vegetable oil of promoting in " Chinese foodstuff texture reform and development outline " energetically, also is the first-elected health care edible oil of international food and agricultural organization.
At present, the industrial production of tea oil mainly is to extract crude oil by hot moulding or solvent extraction, filters then, comes unstuck, operations such as depickling, decolouring, deodorization, winterization make with extra care and form.The crude oil impurity that this technology is extracted is many, color is dark, needs loaded down with trivial details process for refining such as process is come unstuck, depickling just can reach the quality standard of edible camellia oil, and this has not only prolonged the production cycle, and has increased equipment cost; Simultaneously, refining step makes in the tea oil functional factor loss serious, has reduced the quality of tea oil product.For improving the quality of tea oil, expand its Application Areas, increase added value of product, people have proposed the complete processing that low temperature pressing is produced tea oil.Low temperature pressing is produced tea oil technology and is comprised that low temperature pressing goes out crude oil, and crude oil leaves standstill or the centrifugal dregs of fat that make separate, and passes through steps such as low temperature crystallization growing the grain, filter at low temperature, low temperature decolouring again.Compare with hot moulding, phosphorus content, acid number, peroxide value obviously reduce in the tea oil that the low temperature pressing explained hereafter goes out, functional factor content significantly improves, method of refining is also simpler, and weak point is very dark because containing underwear pigment composition color in the crude oil, and follow-up refinery practice but can not be removed the underwear pigment composition, therefore, the tea oil that low temperature pressing is produced not only color and luster is not so good as people's will, and has bitter taste, the requirement that is difficult to be up to state standards.Therefore, be badly in need of the efficient method of removing the tea seed underwear of research and development, for the production of high-quality tea oil provides the camellia seed kernel of high-quality to process raw material.
Summary of the invention
Current, the health care of tea oil that low temperature pressing is produced is worth high, the tea oil that low temperature pressing is produced because containing tea seed underwear pigment composition not only color and luster be not so good as people's will, and have bitter taste, the requirement that is difficult to be up to state standards; In order to overcome above-mentioned defective, the invention provides a kind of method of efficient removal tea seed underwear.
A kind of method of removing the tea seed underwear comprises following operation steps:
(1) raw materials pretreatment: get dry oil tea fruit, slough oil tea fruit shell with peeler, obtain the tea seed that shells;
(2) deepfreeze: the tea seed that will shell is put into the fluidization single quick-freezing machine, and the fluidization quick-frozen is 5~10 minutes under the condition of temperature-30~-40 ℃, obtains cold tea seed;
(3) thermal treatment: get cold tea seed, infrared rays is rapidly heated to 150~200 ℃, and thermal treatment is 2~4 minutes under 150~200 ℃ of conditions of temperature, obtains hot tea seed;
(4) peeling: hot tea seed is put into the crusher fragmentation remove clothing, change in the seed processing car again, underwear is separated with seed benevolence, must remove the camellia seed kernel of underwear, membrane-removing rate is more than 80%.
The water content of the oil tea fruit of described drying is 1%-3%.
Controlling fluidised superficial gas velocity is the 0.05-0.12 meter per second.
Compared with prior art the inventive method has following advantage: (1) the invention provides a kind of removal method of tea seed underwear, for the production of high-quality tea oil provides high-quality to process raw material, promote the technical progress of tea seed secondary industry, improved added value of product; (2) the present invention forms different according to the underwear of tea seed with the seed Renhua, shrinking under the suddenly cold and hot condition makes the seed benevolence of tea seed separate with underwear with the speed of expansion different principle, make tea seed underwear, seed benevolence separately by roll differential fragmentation and wind-force, membrane-removing rate reaches more than 80%; (3) tea seed underwear removal method provided by the invention is simple to operate, goes underwear short process period, the efficient height; (4) processing of going the underwear tea seed to be particularly suitable for low temperature pressing tea oil provided by the invention, tea oil color and luster after the processing is good, quality is high, can reach the oil standard of using of green food, makeup and medicine and other fields, have more the market competitiveness, be conducive to expand the Application Areas of tea oil, increase tea grower's income.
Underwear surface-area * 100% of membrane-removing rate (%)=(underwear surface-area-the remove underwear surface-area of the tea seed of underwear of shelling tea seed) ÷ shelling tea seed.
Embodiment
Be further described below by the present invention of embodiment.
Embodiment 1:
Step 1 raw materials pretreatment: get oil tea fruit 1000 grams of water content 1%, slough oil tea fruit shell with the tea tree seed huller, tea seed 705.5 grams obtain shelling;
Step 2 deepfreeze: the tea seed that will shell is put into the fluidization single quick-freezing machine, and under the condition of temperature-30 ℃, fluidization quick-frozen 10 minutes obtains cold tea seed; Controlling fluidised superficial gas velocity is 0.08 meter per second;
Step 3 thermal treatment: get cold tea seed, infrared rays is rapidly heated to 180 ℃, and thermal treatment is 3 minutes under 180 ℃ of conditions of temperature, obtains hot tea seed;
Step 4 is removed clothing: hot tea seed is put into double roll crusher, make the underwear fragmentation, come off by roll differential, change in the seed processing car again, make underwear, seed benevolence separate membrane-removing rate 86.7% under wind effect.
Embodiment 2:
Step 1 raw materials pretreatment: get oil tea fruit 1000 grams of water content 3%, slough oil tea fruit shell with the tea tree seed huller, tea seed 689.6 grams obtain shelling;
Step 2 deepfreeze: the tea seed that will shell is put into the fluidization single quick-freezing machine, and the fluidization quick-frozen is 5 minutes under the condition of temperature-40 ℃, obtains cold tea seed; Controlling fluidised superficial gas velocity is 0.12 meter per second;
Step 3 thermal treatment: get cold tea seed, infrared rays is rapidly heated to 150 ℃, and thermal treatment is 4 minutes under 150 ℃ of conditions of temperature, obtains hot tea seed;
Step 4 is removed clothing: hot tea seed is put into double roll crusher, make the underwear fragmentation, come off by roll differential, change in the seed processing car again, make underwear, seed benevolence separate membrane-removing rate 89.2% under wind effect.
Embodiment 3:
Step 1 raw materials pretreatment: get oil tea fruit 1000 grams of water content 2%, slough oil tea fruit shell with the tea tree seed huller, tea seed 695.3 grams obtain shelling;
Step 2 deepfreeze: the tea seed that will shell is put into the fluidization single quick-freezing machine, and under the condition of temperature-35 ℃, fluidization quick-frozen 8 minutes obtains cold tea seed; Controlling fluidised superficial gas velocity is 0.05 meter per second;
Step 3 thermal treatment: get cold tea seed, infrared rays is rapidly heated to 200 ℃, and thermal treatment is 2 minutes under 200 ℃ of conditions of temperature, obtains hot tea seed;
Step 4 is removed clothing: hot tea seed is put into double roll crusher, make the underwear fragmentation, come off by roll differential, change in the seed processing car again, make underwear, seed benevolence separate membrane-removing rate 81.1% under wind effect.
Claims (3)
1. method of removing the tea seed underwear is characterized in that comprising following operation steps:
(1) raw materials pretreatment: get dry oil tea fruit, slough oil tea fruit shell with peeler, obtain the tea seed that shells;
(2) deepfreeze: the tea seed that will shell is put into the fluidization single quick-freezing machine, and the fluidization quick-frozen is 5~10 minutes under the condition of temperature-30~-40 ℃, obtains cold tea seed;
(3) thermal treatment: get cold tea seed, infrared rays is rapidly heated to 150~200 ℃, and thermal treatment is 2~4 minutes under 150~200 ℃ of conditions of temperature, obtains hot tea seed;
(4) peeling: hot tea seed is put into the crusher fragmentation remove clothing, change in the seed processing car again, underwear is separated with seed benevolence, must remove the camellia seed kernel of underwear, membrane-removing rate is more than 80%.
2. a kind of method of removing the tea seed underwear according to claim 1 is characterized in that: the water content of the oil tea fruit of described drying is 1%-3%.
3. a kind of method of removing the tea seed underwear according to claim 1, it is characterized in that: controlling fluidised superficial gas velocity is the 0.05-0.12 meter per second.
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CN 201210098236 CN102618380B (en) | 2012-04-06 | 2012-04-06 | Method for removing oil tea seed coats |
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CN 201210098236 CN102618380B (en) | 2012-04-06 | 2012-04-06 | Method for removing oil tea seed coats |
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Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104046506A (en) * | 2013-03-12 | 2014-09-17 | 长沙理工大学 | Technology for removing seed coat from camellia seed by employing biological enzyme method |
CN104172439B (en) * | 2014-09-04 | 2016-11-02 | 宁德市绿星农业开发有限公司 | A kind of method of shelling camellia seeds |
CN104782795A (en) * | 2015-05-11 | 2015-07-22 | 查孝柱 | Organic sunflower seed oil and production process thereof |
CN104962382A (en) * | 2015-05-12 | 2015-10-07 | 查孝柱 | Organic rapeseed oil and production technology thereof |
CN107987960A (en) * | 2016-10-26 | 2018-05-04 | 永州市永大九嶷油茶开发有限公司 | A kind of processing method of tea oil |
CN109170935B (en) * | 2018-11-12 | 2022-04-01 | 贵阳学院 | Method for removing seed coat of walnut kernel |
CN109943408A (en) * | 2019-04-10 | 2019-06-28 | 中国热带农业科学院农产品加工研究所 | A kind of camellia seed kernel is undressed method |
Citations (2)
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CN101147617A (en) * | 2007-10-16 | 2008-03-26 | 山东省果树研究所 | Walnut kernel peeling method |
CN101791142A (en) * | 2010-03-29 | 2010-08-04 | 陕西科技大学 | Method for peeling almond or peach seed by freezing |
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2012
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Patent Citations (2)
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CN101147617A (en) * | 2007-10-16 | 2008-03-26 | 山东省果树研究所 | Walnut kernel peeling method |
CN101791142A (en) * | 2010-03-29 | 2010-08-04 | 陕西科技大学 | Method for peeling almond or peach seed by freezing |
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