CN104877756A - Rapeseed peeling method used for making oil through cold pressing - Google Patents
Rapeseed peeling method used for making oil through cold pressing Download PDFInfo
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Abstract
The invention provides a rapeseed peeling method for making oil through cold pressing and belongs to front-end procedures in a rapeseed oil making method. The rapeseed peeling method provided by the invention comprises the following steps: (1), rapeseed pre-processing, (2), microwave pre-processing, (3), crushing and peeling; (4) hull and kernel separating, (5), color sorting and peeling, and (6), oil making through cold pressing. The process is relatively simple, the investment is less, the microwave pre-processing is conducive to rapeseed crushing and peeling, hull and kernel adhesion is effectively reduced after crushing, moreover, a drying effect is played, the rapeseed peeling rate can reach 95 percent or above, and the shelling rate and the color sorting rate are both higher than 95 percent. Low temperature pressed crude oil obtained through low temperature pressing to the rapeseed kernel obtained after microwave treatment is light in color, more reasonable in nutrient substance composition, can be high-quality rapreseed oil without need of complex refining process, and meets the requirements of current consumers to green and healthy oil.
Description
Technical field
The invention belongs to food processing and production technical field, specifically a kind of method removing rapeseed hull.
Background technology
Rape is one of the most important oil crops of China and cash crop, and Annual planting area and ultimate production all occupy first place in the world.In domestic vegetables oil, about 50% derives from Semen Brassicae campestris.In study on rapeseed oil production, traditional oil-producing technique mainly contains once directly squeezing process, pre-squeezings-extract technology and direct leaching process, and modern oil-producing technique mainly refers to extract technology and low-temperature cold pressing technique etc. after employing expelling-expansion pretreatment.Wherein rapeseed peeling cold pressing oil is the New Processing that development in recent years is got up, and this technology can significantly improve the quality of grease and the utility value of grouts.Compared with hot moulding, although cold pressing oil oil yield is on the low side, cold press rapeseed oil has obvious Semen Lactucae sativae local flavor, but because Semen Brassicae campestris steams stir-fry process without high temperature before cold pressing oil, decrease the destruction to protein, Available Amino Acids, avoid high temperature process grease and produce the objectionable impurities such as trans fatty acid, oil polymers, remain the physiologically active substance in oil to greatest extent, as benefit materials such as vitamin-E, sterol, gamma-linolenic acid and functional foodstuff pigments.At present, along with people are to the attention of green health edible oil, increasing human consumer starts to favor in low-temperature cold pressing rapeseed oil.
Vegetable seed seed coat accounts for 12% ~ 19% of full seed, containing a small amount of grease and protein, mainly robust fibre in seed coat.In addition, the antinutritional factor such as most pigments, tannin, sinapic acid choline ester, phytic acid in Semen Brassicae campestris is also present in seed coat.Due to the existence of seed coat, the rapeseed oil color and luster of squeezing of not peeling is comparatively dark, mouthfeel is poor and containing some antinutritional factor, had a strong impact on the quality of rapeseed oil.After rapeseed peeling, not only material oleaginousness significantly rises, rapeseed oil quality also be improved significantly.More to rapeseed peeling low-temperature cold pressing technical study at present; (red legend is prosperous for grade as prosperous in red legend; Hu Qunliang; Xiang Hai; Jin Suying. the research and apply [J] of the direct cold pressing oil technique of Semen Brassicae campestris. Chinese oil, 2005,30 (3): 16-18.) the direct cold pressing oil technique of Semen Brassicae campestris carried out studying find that cold pressing oil can retain effective constituent in rapeseed oil effectively; decrease the discharge of refining sewage, be conducive to environment protection.Liu Changsheng (Liu Changsheng. cold press rapeseed oil low-temperature refining technology and quality characteristic research [D] thereof. Scientia Agricultura Sinica research institute, Xi'an, 2012) more detailed research has been carried out to the low temperature Scouring Technology of cold press rapeseed oil and quality characteristic thereof, have developed a kind of low temperature clean appropriateness refining techniques being suitable for low-temperature cold pressing rapeseed oil.(the Zhou Qi such as Zhou Qi, Yang Mei, Huang Fenghong, Zheng Chang, Liu Changsheng. microwave and decortication process vegetable seed are on the impact [J] of activeconstituents in oil. Chinese oil crops journal, 2011,33 (5): 507-512.) the cold pressing oil quality that high, medium and low erucic acid and sulfo-content vegetable seed are raw material is analyzed, to find after microwave that in oil, vitamin-E and content of phytosterol are the highest, and low erucic acid low-sulfur is for the vegetable seed quality being improved oil by microwave treatment preferably.Microwave may be used for processing Semen Brassicae campestris as can be seen here, but not yet finds with the method for microwave-assisted rapeseed peeling.Rapeseed peeling oil-producing technique has become a kind of new trend of rapeseed processing industry, and the research report for rapeseed peeling low temperature oil expression technology is a lot, but rarely seen specifically for the report improving rapeseed peeling rate; According to investigation, the rapeseed peeling rate of prior art is less than 80%.
Summary of the invention
In order to improve the quality of low-temperature cold pressing rapeseed oil, improving rapeseed peeling rate, the invention provides a kind of rapeseed peeling method for cold pressing oil.
A kind of rapeseed peeling method for cold pressing oil comprises following operation steps: the peeling rate of (1) Semen Brassicae campestris pre-treatment, (2) Microwave Pretreatment, (3) broken decortication, (4) separation of hull and kernel, (5) look choosing peeling Semen Brassicae campestris is greater than 95%.
Concrete operation step is as follows:
(1) Semen Brassicae campestris pre-treatment
Adopt angle shell, leaf, silt and flat seed in screening and selection by winnowing combined techniques removing raw material, obtain pre-treatment Semen Brassicae campestris;
(2) microwave treatment
By pre-treatment Semen Brassicae campestris microwave treatment, obtain microwave Semen Brassicae campestris;
(3) broken decortication
Microwave Semen Brassicae campestris joined in rape-seed hull removing machine and carry out the broken decortication of stone roller stranding, obtain broken rapeseed decorticate, peeling rate is 95% ~ 98%; Described peeling rate is the per-cent that the quality of separation of hull and kernel accounts for total vegetable seed quality;
(4) separation of hull and kernel
Successively being transferred in winnowing machine and sifting machine by broken rapeseed decorticate makes rapeseed hull be separated with rape seed, and obtain rapeseed decorticate benevolence, peeling rate is 90% ~ 95%; Described rapeseed decorticate benevolence comprises rape seed, rapeseed hull, non-rapeseed decorticate, broken rapeseed hull benevolence adhesion body; Described peeling rate is the per-cent that the quality isolating skin accounts for the total vegetable seed cortex amount of broken decortication;
(5) look choosing peeling
By described rapeseed decorticate benevolence further across color selector selected removal Semen Brassicae campestris scurf, obtain rape seed, look selects rate to be 95% ~ 98%; Described look select rate be obtain after look choosing skin, skin benevolence adhesion body, non-rapeseed decorticate quality sum to account for before look choosing the per-cent of the quality sum of skin, skin benevolence adhesion body, non-rapeseed decorticate in total rapeseed dehulled after separation of hull and kernel.
Microwave treatment conditions in described step (2): power 800 ~ 1000W, time 1 ~ 3min.
advantageous Effects of the present invention embodies in the following areas:
(1) the present invention first by microwave technique application in rapeseed peeling early stage pretreatment process, improve rapeseed peeling rate, improve microwave by for Semen Brassicae campestris structure deteriorate own on the one hand, especially the original structure of vegetable seed skin has been damaged, be beneficial to vegetable seed broken decortication in roller crusher, effectively improve peeling rate; Microwave makes some moisture in Semen Brassicae campestris cot capillary pipe structure flow out cell surface on the other hand, in fragmentation decortication, decrease the adhesion of skin benevolence, be beneficial to later stage separation of hull and kernel, microwave also has dry effect simultaneously, within a short period of time is dry by Semen Brassicae campestris, is beneficial to later stage rapeseed crushing decortication; In addition, the low temperature pressing crude oil lighter color that the rape seed that microwave treatment obtains obtains through low temperature pressing, composition of nutritive substance are more reasonable, do not need complicated refinery practice namely to can be high-quality rapeseed oil, meet the demand of current consumer to green health oil;
(2) processing condition of the present invention are gentle, drying process is replaced with Microwave Pretreatment by original Semen Brassicae campestris cold press milling process basis and operates, without the need to carrying out operation transformation on a large scale.
Embodiment
The invention belongs to the former process in Semen Brassicae campestris method of making oil.Below by embodiment, the present invention is described in further detail.
The explanation in the raw materials used source of following examples:
Blue or green excellent No. 10 Semen Brassicae campestris, are purchased from grease company limited of Shouxian County, Anhui Province Far Glory.
Embodiment 1:
Microwave-assisted rapeseed peeling operation steps for cold pressing oil is as follows:
(1) Semen Brassicae campestris pre-treatment
Adopt the large small impurities such as angle shell, leaf, silt and flat seed in screening and selection by winnowing combined techniques removing raw material, obtain pre-treatment Semen Brassicae campestris.
(2) microwave treatment
By pre-treatment Semen Brassicae campestris microwave treatment, microwave treatment conditions: power 1000W, time 1min, obtain microwave Semen Brassicae campestris.
(3) broken decortication
Microwave Semen Brassicae campestris joined in rape-seed hull removing machine and carry out the broken decortication of stone roller stranding, obtain broken rapeseed decorticate, peeling rate is 95%; Peeling rate is the per-cent that the quality of separation of hull and kernel accounts for total vegetable seed quality.
(4) separation of hull and kernel
Successively being transferred in winnowing machine and sifting machine by broken rapeseed decorticate makes rapeseed hull be separated with rape seed, and obtain rapeseed decorticate benevolence, peeling rate is 90%; Described rapeseed decorticate benevolence comprises rape seed, rapeseed hull, non-rapeseed decorticate, broken rapeseed hull benevolence adhesion body; Peeling rate is the per-cent that the quality isolating skin accounts for the total vegetable seed cortex amount of broken decortication.
(5) look choosing peeling
By rapeseed decorticate benevolence further across color selector selected removal Semen Brassicae campestris scurf etc., obtain rape seed, look selects rate to be 95%; Look select rate be obtain after look choosing skin, skin benevolence adhesion body, non-rapeseed decorticate quality sum to account for before look choosing the per-cent of the quality sum of skin, skin benevolence adhesion body, non-rapeseed decorticate in total rapeseed dehulled after separation of hull and kernel.
Embodiment 2:
Microwave-assisted rapeseed peeling operation steps for cold pressing oil is as follows:
(1) Semen Brassicae campestris pre-treatment
Adopt the large small impurities such as angle shell, leaf, silt and flat seed in screening and selection by winnowing combined techniques removing raw material, obtain pre-treatment Semen Brassicae campestris.
(2) microwave treatment
By pre-treatment Semen Brassicae campestris microwave treatment, microwave treatment conditions: power 900W, time 2min, obtain microwave Semen Brassicae campestris.
(3) broken decortication
Microwave Semen Brassicae campestris joined in rape-seed hull removing machine and carry out the broken decortication of stone roller stranding, obtain broken rapeseed decorticate, peeling rate is 97%.
(4) separation of hull and kernel
Successively being transferred in winnowing machine and sifting machine by broken rapeseed decorticate makes rapeseed hull be separated with rape seed, and obtain rapeseed decorticate benevolence, peeling rate is 93%.
(5) look choosing peeling
By the rapeseed decorticate benevolence that obtains after winnowing machine and sifting machine separation of hull and kernel further across color selector selected removal Semen Brassicae campestris scurf etc., obtain rape seed, look selects rate to be 96%.
Embodiment 3:
Microwave-assisted rapeseed peeling operation steps for cold pressing oil is as follows:
(1) Semen Brassicae campestris pre-treatment
Adopt the large small impurities such as angle shell, leaf, silt and flat seed in screening and selection by winnowing combined techniques removing raw material, obtain pre-treatment Semen Brassicae campestris.
(2) microwave treatment
By pre-treatment Semen Brassicae campestris microwave treatment, microwave treatment conditions: power 800W, time 3min, obtain microwave Semen Brassicae campestris.
(3) broken decortication
Microwave Semen Brassicae campestris joined in rape-seed hull removing machine and carry out the broken decortication of stone roller stranding, obtain broken rapeseed decorticate, peeling rate is 98%.
(4) separation of hull and kernel
Successively being transferred in winnowing machine and sifting machine by broken rapeseed decorticate makes rapeseed hull be separated with rape seed, and obtain rapeseed decorticate benevolence, peeling rate is 95%.
(5) look choosing peeling
By the rapeseed decorticate benevolence that obtains after winnowing machine and sifting machine separation of hull and kernel further across color selector selected removal Semen Brassicae campestris scurf etc., obtain rape seed, look selects rate to be 98%.
Claims (3)
1. for a rapeseed peeling method for cold pressing oil, it is characterized in that comprising following operation steps: the peeling rate of (1) Semen Brassicae campestris pre-treatment, (2) Microwave Pretreatment, (3) broken decortication, (4) separation of hull and kernel, (5) look choosing peeling Semen Brassicae campestris is greater than 95%.
2. a kind of rapeseed peeling method for cold pressing oil according to claim 1, is characterized in that concrete operation step is as follows:
(1) Semen Brassicae campestris pre-treatment
Adopt angle shell, leaf, silt and flat seed in screening and selection by winnowing combined techniques removing raw material, obtain pre-treatment Semen Brassicae campestris;
(2) microwave treatment
By pre-treatment Semen Brassicae campestris microwave treatment, obtain microwave Semen Brassicae campestris;
(3) broken decortication
Microwave Semen Brassicae campestris joined in rape-seed hull removing machine and carry out the broken decortication of stone roller stranding, obtain broken rapeseed decorticate, peeling rate is 95% ~ 98%; Described peeling rate is the per-cent that the quality of separation of hull and kernel accounts for total vegetable seed quality;
(4) separation of hull and kernel
Successively being transferred in winnowing machine and sifting machine by broken rapeseed decorticate makes rapeseed hull be separated with rape seed, and obtain rapeseed decorticate benevolence, peeling rate is 90% ~ 95%; Described rapeseed decorticate benevolence comprises rape seed, rapeseed hull, non-rapeseed decorticate, broken rapeseed hull benevolence adhesion body; Described peeling rate is the per-cent that the quality isolating skin accounts for the total vegetable seed cortex amount of broken decortication;
(5) look choosing peeling
By described rapeseed decorticate benevolence further across color selector selected removal Semen Brassicae campestris scurf, obtain rape seed, look selects rate to be 95% ~ 98%; Described look select rate be obtain after look choosing skin, skin benevolence adhesion body, non-rapeseed decorticate quality sum to account for before look choosing the per-cent of the quality sum of skin, skin benevolence adhesion body, non-rapeseed decorticate in total rapeseed dehulled after separation of hull and kernel.
3. a kind of rapeseed peeling method for cold pressing oil according to claim 2, is characterized in that: the microwave treatment conditions in described step (2): power 800 ~ 1000W, time 1 ~ 3min.
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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 |
| CN107557147A (en) * | 2017-10-24 | 2018-01-09 | 中国农业科学院油料作物研究所 | A kind of extracting method of fruit-like flavour 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 |
| CN109123690A (en) * | 2018-06-26 | 2019-01-04 | 安徽山美生物科技有限公司 | A method of tea shell is separated from tea seed |
| CN109652199A (en) * | 2019-02-28 | 2019-04-19 | 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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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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| 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 |
| CN109123690A (en) * | 2018-06-26 | 2019-01-04 | 安徽山美生物科技有限公司 | A method of tea shell is separated from tea seed |
| CN109652199A (en) * | 2019-02-28 | 2019-04-19 | 湖南银华百隆现代农业发展有限公司 | Processing method of aromatic rapeseed oil |
| 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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