CN104877756B - A kind of rapeseed peeling method for cold pressing oil - Google Patents
A kind of rapeseed peeling method for cold pressing oil Download PDFInfo
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Abstract
The present invention provides a kind of rapeseed peeling methods for cold pressing oil, belong to the preceding working procedure in rapeseed method for producing oil.The present invention includes the following steps：（1）Rapeseed pre-processes,（2）Microwave Pretreatment,（3）Broken decortication,（4）Separation of hull and kernel,（5）Color sorting is removed the peel,（6）Cold pressing oil.The technique is simpler, and investment is less, and Microwave Pretreatment is conducive to the broken decortication of vegetable seed, effectively reduces broken rear skin benevolence adhesion, while also having the function of drying, rapeseed peeling rate is 95% or more, and peeling rate, color sorting rate are all higher than 95%.The cold pressing crude oil lighter color that is obtained through cold pressing of rape seed that microwave treatment obtains, composition of nutritive substance are more reasonable, and it can be high-quality rapeseed oil to be not required to complicated refinery practice, meet demand of the current consumer to green health oil.
Description
Technical field
The invention belongs to food processing and production technical field, the method for specifically a kind of removal rapeseed hull.
Background technology
Rape is one of the most important oil crops in China and industrial crops, and annual planting area and the worlds total output Jun Ju are first
Position.In domestic vegetable oil, about 50% derives from rapeseed.In study on rapeseed oil production, traditional oil-producing technique is mainly once straight
Squeezing process, pre- squeezing-extract technology and direct leaching process are connect, modern oil-producing technique is referred mainly to using after expelling-expansion pretreatment
Extract technology and low-temperature cold pressing technique etc..Wherein rapeseed peeling cold pressing oil is novel processing skill developed in recent years
Art, the technology are remarkably improved the quality of grease and the utility value of grouts.Compared with hot moulding, although cold pressing oil oil yield is inclined
Low, cold press rapeseed oil has apparent Semen Lactucae sativae flavor, but because rapeseed steams stir-fry processing without high temperature before cold pressing oil, subtracts
The destruction to protein, Available Amino Acids is lacked, avoiding high temperature process grease generation trans-fatty acid, oil polymers etc. has
Evil substance, remains the physiological activator in oil to greatest extent, such as vitamin E, sterol, gamma-Linolenic acid and functional food
The benefit materials such as product pigment.Currently, the attention with people to green health edible oil, more and more consumers start to favor
In low-temperature cold pressing rapeseed oil.
Rapeseed seed coat accounts for the 12% ~ 19% of full seed, plants and contains a small amount of grease and protein, mainly crude fibre in skin.Separately
Outside, the anti-nutritional factors such as most pigments, tannin, sinapine, phytic acid in rapeseed exist in kind of skin.Due to kind of a skin
Presence, the rapeseed oil color of squeezing of not peeling is poor compared with deep, mouthfeel and contains some anti-nutritional factors, seriously affects
The quality of rapeseed oil.After rapeseed peeling, not only material oil content significantly rises, rapeseed oil quality also be improved significantly.
It is more to rapeseed peeling low-temperature cold pressing technical study at present, such as red legend is prosperous（Red legend is prosperous, Hu Qunliang, Xiang Hai, gold element English
The research of the direct cold pressing oil technique of rapeseed and application [J] Chinese oils, 2005,30 (3): 16-18.）For oil
The direct cold pressing oil technique of vegetable seed carries out research and finds that cold pressing oil can effectively retain the active ingredient in rapeseed oil, reduces
The discharge for refining sewage, is conducive to environmental protection.Liu Changsheng（Liu Changsheng cold press rapeseed oil low-temperature refining technologies and its quality are special
Journal of Sex Research [D] scientia Agricultura Sinica research institutes, Xi'an, 2012）To the low temperature Scouring Technology and its quality of cold press rapeseed oil
Characteristic has carried out more detailed research, has developed a kind of low temperature clean appropriateness refining techniques suitable for low-temperature cold pressing rapeseed oil.
All fine jades etc.（Zhou Qi, Yang Mei, Huang Fenghong, Zheng Chang, Liu Changsheng microwaves and decortication handle shadow of the vegetable seed to active constituent in oil
Ring [J] China oil crops journal, 2011,33 (5): 507-512.）To high, medium and low erucic acid and thio content vegetable seed
It is compared and analyzed for the cold pressing oil quality of raw material, finds after microwave vitamin E and content of phytosterol highest in oil, and low
Erucic acid low-sulfur is for the vegetable seed quality preferably for improving oil by microwave treatment.It can be seen that microwave can be used for handling rapeseed,
But it not yet finds in the method for microwave radiation technology rapeseed peeling.Rapeseed peeling oil-producing technique has become rapeseed processing industry
A kind of new trend, for rapeseed peeling low temperature extract oil technology research report it is very much, but it is rarely seen specific to improving oil
The report of vegetable seed peeling rate；According to investigation, the rapeseed peeling rate of the prior art is less than 80%.
Invention content
In order to improve the quality of low-temperature cold pressing rapeseed oil, rapeseed peeling rate is improved, the present invention provides a kind of for cold press
The rapeseed peeling method of liquefaction.
A kind of rapeseed peeling method for cold pressing oil includes following operating procedure：（1）Rapeseed pretreatment,（2）
Microwave Pretreatment,（3）Broken decortication,（4）Separation of hull and kernel,（5）The peeling rate that color sorting removes the peel rapeseed is more than 95%.
Concrete operation step is as follows：
（1）Rapeseed pre-processes
Silique shell, leaf, silt and flat seed in raw material are removed using screening and selection by winnowing combined techniques, obtain pretreatment rapeseed；
（2）Microwave treatment
Rapeseed microwave treatment will be pre-processed, microwave rapeseed is obtained；
（3）Broken decortication
Microwave rapeseed is added in rape-seed hull removing machine grind and rubs broken decortication with the hands, obtains broken decortication rapeseed,
Peeling rate is 95% ~ 98%；The peeling rate is that the quality of separation of hull and kernel accounts for the percentage of total vegetable seed quality；
（4）Separation of hull and kernel
Broken decortication rapeseed, which is successively transferred in winnowing machine and screening machine, makes rapeseed hull and rape seed detach, and obtains
To decortication rape seed, peeling rate is 90% ~ 95%；The decortication rape seed includes rape seed, rapeseed hull, oil of not peeling
Vegetable seed, broken rapeseed hull benevolence adhesion body；The peeling rate is to isolate the quality of skin to account for the broken total vegetable seed cortex amount of decortication
Percentage；
（5）Color sorting is removed the peel
By the decortication rape seed further across the selected removal rapeseed scurf of color selector, rape seed, color are obtained
It is 95% ~ 98% to select rate；The color sorting rate be color sorting after obtain skin, skin benevolence adhesion body, rapeseed of not peeling quality sum account for
Skin in total rapeseed dehulled after separation of hull and kernel before color sorting, skin benevolence adhesion body, rapeseed of not peeling quality sum percentage.
The step（2）In microwave treatment conditions：800~1000W of power, 1~3min of time.
The advantageous effects of the present invention embody in the following areas：
（1）Microwave technology is applied to rapeseed peeling pretreatment process early period by the present invention for the first time, and it is de- to improve rapeseed
On the one hand skin rate improves microwave and destroys this body structure of rapeseed, especially damaged the original structure of vegetable seed skin, is conducive to vegetable seed
It is crushed decortication in kibbler roll, effectively increases peeling rate；Another aspect microwave makes in rapeseed leather shell capillary pipe structure
Some moisture flow out cell surface, reduce skin benevolence adhesion in broken decortication, be conducive to later stage separation of hull and kernel, while microwave is also
Have the function of dry, within a short period of time dry rapeseed, is conducive to later stage rapeseed crushing and peels；In addition, microwave treatment
Cold pressing crude oil lighter color that the rape seed of acquisition is obtained through cold pressing, composition of nutritive substance are more reasonable, are not required to multiple
Miscellaneous refinery practice can be high-quality rapeseed oil, meet demand of the current consumer to green health oil；
（2）Process conditions of the present invention are mild, will be dried on the basis of original rapeseed cold press milling process
Process replaces with Microwave Pretreatment operation, without carrying out a wide range of process transformation.
Specific implementation mode
The invention belongs to the preceding working procedures in rapeseed method for producing oil.Below by embodiment, the present invention is made further
It is described in detail.
The explanation in the raw materials used source of following embodiment：
Green excellent No. 10 rapeseed, are purchased from grease Co., Ltd of Shouxian County, Anhui Province Far Glory.
Embodiment 1：
Microwave radiation technology rapeseed peeling operating procedure for cold pressing oil is as follows：
（1）Rapeseed pre-processes
Sizes impurity and the flat seed such as silique shell, leaf, silt in raw material are removed using screening and selection by winnowing combined techniques, obtains pre- place
Manage rapeseed.
（2）Microwave treatment
Rapeseed microwave treatment, microwave treatment conditions will be pre-processed：Power 1000W, time 1min, obtain microwave rape
Seed.
（3）Broken decortication
Microwave rapeseed is added in rape-seed hull removing machine grind and rubs broken decortication with the hands, obtains broken decortication rapeseed,
Peeling rate is 95%；Peeling rate is that the quality of separation of hull and kernel accounts for the percentage of total vegetable seed quality.
（4）Separation of hull and kernel
Broken decortication rapeseed, which is successively transferred in winnowing machine and screening machine, makes rapeseed hull and rape seed detach, and obtains
To decortication rape seed, peeling rate 90%；The decortication rape seed includes rape seed, rapeseed hull, rape of not peeling
Seed, broken rapeseed hull benevolence adhesion body；Peeling rate is to isolate the quality of skin to account for the percentage of the broken total vegetable seed cortex amount of decortication.
（5）Color sorting is removed the peel
Rape seed will be peeled further across selected removal rapeseed scurf of color selector etc., obtain rape seed, color sorting
Rate is 95%；Color sorting rate be color sorting after obtain skin, skin benevolence adhesion body, rapeseed of not peeling quality sum account for skin benevolence before color sorting
Skin in total rapeseed dehulled after separation, skin benevolence adhesion body, rapeseed of not peeling quality sum percentage.
Embodiment 2：
Microwave radiation technology rapeseed peeling operating procedure for cold pressing oil is as follows：
（1）Rapeseed pre-processes
Sizes impurity and the flat seed such as silique shell, leaf, silt in raw material are removed using screening and selection by winnowing combined techniques, obtains pre- place
Manage rapeseed.
（2）Microwave treatment
Rapeseed microwave treatment, microwave treatment conditions will be pre-processed：Power 900W, time 2min, obtain microwave rape
Seed.
（3）Broken decortication
Microwave rapeseed is added in rape-seed hull removing machine grind and rubs broken decortication with the hands, obtains broken decortication rapeseed,
Peeling rate is 97%.
（4）Separation of hull and kernel
Broken decortication rapeseed, which is successively transferred in winnowing machine and screening machine, makes rapeseed hull and rape seed detach, and obtains
To decortication rape seed, peeling rate 93%.
（5）Color sorting is removed the peel
The decortication rape seed obtained after winnowing machine and screening machine separation of hull and kernel is gone further across color selector is selected
Except rapeseed scurf etc., rape seed is obtained, color sorting rate is 96%.
Embodiment 3：
Microwave radiation technology rapeseed peeling operating procedure for cold pressing oil is as follows：
（1）Rapeseed pre-processes
Sizes impurity and the flat seed such as silique shell, leaf, silt in raw material are removed using screening and selection by winnowing combined techniques, obtains pre- place
Manage rapeseed.
（2）Microwave treatment
Rapeseed microwave treatment, microwave treatment conditions will be pre-processed：Power 800W, time 3min, obtain microwave rape
Seed.
（3）Broken decortication
Microwave rapeseed is added in rape-seed hull removing machine grind and rubs broken decortication with the hands, obtains broken decortication rapeseed,
Peeling rate is 98%.
（4）Separation of hull and kernel
Broken decortication rapeseed, which is successively transferred in winnowing machine and screening machine, makes rapeseed hull and rape seed detach, and obtains
To decortication rape seed, peeling rate 95%.
（5）Color sorting is removed the peel
The decortication rape seed obtained after winnowing machine and screening machine separation of hull and kernel is gone further across color selector is selected
Except rapeseed scurf etc., rape seed is obtained, color sorting rate is 98%.
Claims (1)
1. a kind of rapeseed peeling method for cold pressing oil, it is characterised in that including following operating procedure：（1）Rapeseed is pre-
Processing,（2）Microwave Pretreatment,（3）Broken decortication,（4）Separation of hull and kernel,（5）The peeling rate that color sorting removes the peel rapeseed is more than 95%；
Concrete operation step is as follows：
（1）Rapeseed pre-processes
Silique shell, leaf, silt and flat seed in raw material are removed using screening and selection by winnowing combined techniques, obtain pretreatment rapeseed；
（2）Microwave treatment
Rapeseed microwave treatment, microwave treatment conditions will be pre-processed：800~1000W of power, 1~3min of time, obtain microwave
Rapeseed；
（3）Broken decortication
Microwave rapeseed is added in rape-seed hull removing machine grind and rubs broken decortication with the hands, obtains broken decortication rapeseed, decortication
Rate is 95% ~ 98%；The peeling rate is that the quality of separation of hull and kernel accounts for the percentage of total vegetable seed quality；
（4）Separation of hull and kernel
Broken decortication rapeseed, which is successively transferred in winnowing machine and screening machine, makes rapeseed hull and rape seed detach, and is taken off
Skin rape seed；The decortication rape seed includes rape seed, rapeseed hull, rapeseed of not peeling, is crushed rapeseed hull benevolence
Adhesion body；The peeling rate is to isolate the quality of skin to account for the percentage of the broken total vegetable seed cortex amount of decortication；
（5）Color sorting is removed the peel
By the decortication rape seed further across the selected removal rapeseed scurf of color selector, rape seed, color sorting rate are obtained
It is 95% ~ 98%；The color sorting rate be color sorting after obtain skin, skin benevolence adhesion body, rapeseed of not peeling quality sum account for color sorting
Skin in total rapeseed dehulled after preceding separation of hull and kernel, skin benevolence adhesion body, rapeseed of not peeling quality sum percentage.
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| CN107312623A (en) * | 2017-07-19 | 2017-11-03 | 望谟县布依王油脂有限公司 | A kind of processing method of the direct cold pressing oil of rapeseed |
| CN107557147B (en) * | 2017-10-24 | 2021-04-02 | 中国农业科学院油料作物研究所 | Extraction method of fruit-flavor rapeseed oil |
| CN108903005A (en) * | 2018-05-31 | 2018-11-30 | 镇江虎瑞生物科技有限公司 | A kind of technique that microwave method carries out soybean peeling and enzyme deactivation |
| CN109123690B (en) * | 2018-06-26 | 2021-02-19 | 安徽山美生物科技有限公司 | Method for separating tea shells from tea seeds |
| CN109652199B (en) * | 2019-02-28 | 2022-05-13 | 湖南银华百隆现代农业发展有限公司 | Processing method of aromatic rapeseed oil |
| CN110226729A (en) * | 2019-07-19 | 2019-09-13 | 江西省农业科学院农产品质量安全与标准研究所 | A kind of peeling sesame method |
| CN110628500A (en) * | 2019-09-24 | 2019-12-31 | 湖南省义丰祥实业有限公司 | Preparation method of high-oleic-acid nutritional health-care rapeseed oil |
| CN111019756A (en) * | 2019-12-20 | 2020-04-17 | 仲恺农业工程学院 | Industrial production and processing method of camellia seeds |
| CN111387301A (en) * | 2020-04-21 | 2020-07-10 | 四川妈妈家农业开发有限公司 | Preparation method of plateau rapeseed oil suitable for children to eat |
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| CN1279153C (en) * | 2004-08-23 | 2006-10-11 | 隋利华 | Process for extracting peanut oil and producing peanut protein and products thereof |
| CN101911983B (en) * | 2010-07-13 | 2012-09-05 | 中国农业科学院油料作物研究所 | Method for pre-treating oil crop seeds by using microwave |
| CN102942988A (en) * | 2012-11-21 | 2013-02-27 | 安徽宏实光机电高科有限公司 | Process for manufacturing oil by cold-squeezing of rape seeds |
| CN104293480A (en) * | 2014-10-14 | 2015-01-21 | 合肥工业大学 | Rapeseed peeling method suitable for cold pressing oil preparation |
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