CN104000285A - Method for removing hazelnut seed coat - Google Patents
Method for removing hazelnut seed coat Download PDFInfo
- Publication number
- CN104000285A CN104000285A CN201410258250.5A CN201410258250A CN104000285A CN 104000285 A CN104000285 A CN 104000285A CN 201410258250 A CN201410258250 A CN 201410258250A CN 104000285 A CN104000285 A CN 104000285A
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- hazelnut
- fibert
- vacuum drying
- vacuum
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Abstract
The invention relates to a method for removing a hazelnut seed coat. The method comprises the following steps that (1) a hard shell of a hazelnut is removed, and then the hazelnut is placed in boiling water for 0.1 min to 1 min; (2) the hazelnut is taken out, and centrifuge dripping is carried out on water on the surface of the hazelnut; (3) the hazelnut is placed in a vacuum drying box, temperature is set to be 78 DEG C to 82 DEG C, the vacuum degree is smaller than 0.2 MPa, and the hazelnut is kept in the vacuum drying box for 30 min to 50 min; (4) the hazelnut is placed into a frying machine immediately while the hazelnut is hot, and the frying machine rotates at the rotating speed of 3 r/min to 10 r/min under the condition of room temperature. Chemical reagents are not used in the method, no chemical waste water is generated, it can be guaranteed that protein in the hazelnut is not chemically changed, and due to vacuum drying, no oxygen exists, and oxidative deterioration cannot happen to fat in a hazelnut kernel. Therefore, the method is environmentally friendly and convenient to operate, and the hazelnut kernel produced through the method has the advantages of being safe and rick in nutrition.
Description
Technical field
The present invention relates to a kind of barking method of seed, specifically relate to a kind of peeling method of fibert kind skin.
Background technology
The kind skin mouthfeel of fibert is astringent, and rubicundity can have considerable influence to the color and luster of product and taste, and therefore making food should remove fibert crust.Barking method is a lot; there are chemical peeling, machine barking, steam peeling, hot water peeling and freezing peeling etc.; wherein, chemical peeling method cost is higher, produces more chemical waste fluid; be unfavorable for environmental protection; and affect mouthfeel and the local flavor of hazelnut kernel, and other barking method also can be owing to being subject to maturity, the granular size of fibert, the impact of moisture height etc.; cause peeling not thorough, even can only remove a seldom part and plant skin.
Therefore, for the peeling method of fibert kind skin, still have further demand, this is also one of study hotspot in this technical field and emphasis, the power that the present invention is accomplished especially and starting point place.
Summary of the invention
The above-mentioned shortcoming existing for prior art, the inventor has carried out a large amount of further investigations, after having paid creative work, thereby has completed the present invention.
The present invention is achieved through the following technical solutions, and a kind of peeling method of fibert kind skin, comprises the following steps:
(1) fibert is removed drop into after duricrust and in boiling water, keep 0.1-1 min;
(2) take out fibert, the moisture on centrifuge dripping surface;
(3) fibert is put into vacuum drying chamber, design temperature 78-82 ℃, vacuum is less than 0.2 MPa, keeps 30-50 min;
(4) fibert is put into baking machine while hot immediately, at ambient temperature, rotating speed 3-10 r/min rotation.
Preferably, in described step (1), in boiling water, keep 0.5 min.
Preferably, in described step (3), 80 ℃ of temperature, vacuum 0.1 MPa.
Preferably, in described step (3), fibert is put into vacuum drying chamber and keep 40 min.
Preferably, in described step (4), rotating speed 5 r/min rotate 30 min.
Compared with prior art, beneficial effect of the present invention is as follows: in the present invention, after fibert kind skin and hazelnut kernel water suction, under vacuum and heating condition, moisture volatilizees fast, plant skin and because dilation is different, produce dislocation with seed benevolence interface, for advantage has been created in decortication.The method is not used chemical reagent, do not produce chemical wastewater yet, and can keep the protein in fibert that chemical modification does not occur, simultaneously owing to being vacuum drying, stopped oxygen pure, make the fat in hazelnut kernel not produce oxidation deterioration, therefore, the method is environmental protection not only, easy to operate, and the hazelnut kernel providing has safety, polytrophic advantage.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art further to understand the present invention, but not limit in any form the present invention.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
Embodiment 1
The present embodiment relates to a kind of peeling method of fibert kind skin, comprises the following steps:
(1) fibert is removed drop into after duricrust and in boiling water, keep 0.5 min;
(2) take out fibert, the moisture on centrifuge dripping surface;
(3) fibert is put into vacuum drying chamber, 80 ℃ of design temperatures, vacuum 0.1 MPa, keeps 40 min;
(4) fibert is put into baking machine while hot immediately, at ambient temperature, rotating speed 5 r/min rotate 30 min.
Embodiment 2
The present embodiment relates to a kind of peeling method of fibert kind skin, comprises the following steps:
(1) fibert is removed drop into after duricrust and in boiling water, keep 0.1 min;
(2) take out fibert, the moisture on centrifuge dripping surface;
(3) fibert is put into vacuum drying chamber, 79 ℃ of design temperatures, vacuum 0.15 MPa, keeps 50 min;
(4) fibert is put into baking machine while hot immediately, at ambient temperature, rotating speed 3 r/min rotate 40 min.
Embodiment 3
The present embodiment relates to a kind of peeling method of fibert kind skin, comprises the following steps:
(1) fibert is removed drop into after duricrust and in boiling water, keep 0.3 min;
(2) take out fibert, the moisture on centrifuge dripping surface;
(3) fibert is put into vacuum drying chamber, 81 ℃ of design temperatures, vacuum 0.2 MPa, keeps 30 min;
(4) fibert is put into baking machine while hot immediately, at ambient temperature, rotating speed 4 r/min rotate 50 min.
Embodiment 4
The present embodiment relates to a kind of peeling method of fibert kind skin, comprises the following steps:
(1) fibert is removed drop into after duricrust and in boiling water, keep 0.7 min;
(2) take out fibert, the moisture on centrifuge dripping surface;
(3) fibert is put into vacuum drying chamber, 82 ℃ of design temperatures, vacuum 0.01 MPa, keeps 35 min;
(4) fibert is put into baking machine while hot immediately, at ambient temperature, rotating speed 7 r/min rotate 60 min.
Embodiment 5
The present embodiment relates to a kind of peeling method of fibert kind skin, comprises the following steps:
(1) fibert is removed drop into after duricrust and in boiling water, keep 1 min;
(2) take out fibert, the moisture on centrifuge dripping surface;
(3) fibert is put into vacuum drying chamber, 78 ℃ of design temperatures, vacuum 0.05 MPa, keeps 45 min;
(4) fibert is put into baking machine while hot immediately, at ambient temperature, rotating speed 10 r/min rotate 20 min.
Comparative example 1-5
Except omitting step (1), in the mode identical with embodiment 1-5, implemented comparative example 1-5(respectively and do not carried out boiling water treating).
Comparative example 6-10
Except the boiling water in step (1) being revised as 90 ℃ of hot water, 80 ℃ of hot water, 70 ℃ of hot water, 60 ℃ of hot water, 50 ℃ of hot water, in the mode identical with embodiment 1, implemented comparative example 6-10 respectively.
Comparative example 11-14
Except the boiling water retention time in step (1) is revised as 2 s, 4 s, 70 s, 80 s, in the mode identical with embodiment 1, implemented comparative example 11-14 respectively.
Comparative example 15-22
Except the baking temperature in step (3) and vacuum are revised as respectively to 70 ℃, 0.25 MPa; 70 ℃, 0.3 MPa; 75 ℃, 0.25 MPa; 75 ℃, 0.3 MPa; 85 ℃, 0.25 MPa; 85 ℃, 0.3 MPa; 90 ℃, 0.25 MPa; Outside 90 ℃, 0.3 MPa, in the mode identical with embodiment 1, implemented comparative example 15-22 respectively.
The statistics of peeling result
Implement respectively above-described embodiment 1-5 and comparative example 1-22, take 500 fibert seeds as test sample at every turn, the number of statistics peeling fibert is also calculated peeling rate, and each embodiment and comparative example repeat five times, get its mean value, and acquired results is as shown in following table 1.
Embodiment 1-5 and comparative example 1-5 by upper table can find out, final peeling rate through the pretreated fibert of boiling water is all greater than 98%, and the final peeling rate of the pretreated fibert of process is not no more than 40%, illustrate that thus pretreatment has remarkable impact to decortication effect, also can be found out by comparative example 6-10 and comparative example 11-14 simultaneously, when pretreatment water temperature is during lower than 100 ℃, final peeling rate is down to 73.5-85.7%, when the pretreated time is not during in this scope of 0.1-1 min, final peeling rate is also down to 85.6-88.3%, this not only illustrates: when pretreatment, the gentle pretreatment time of pretreated water has important impact to the final peeling of fibert, 100 ℃ of water temperatures of pretreatment and pretreated time 0.1-1 min are treatment conditions preferably, and the variation of pretreatment water temperature will obviously be greater than the impact of the variation of pretreatment time on decortication effect to the impact of final peeling.
Simultaneously, from embodiment 1-5 and comparative example 15-22, find out, in step (3), when vacuum drying temperature is that 78-82 ℃, vacuum are while being less than 0.2 MPa, final peeling rate is all greater than 98%, especially embodiment 1, reached 99.8% peeling rate, it is best processing selecting, and vacuum drying temperature and vacuum is not all when this scope, the final peeling rate of fibert only has 70.3-79.6, and this illustrates that vacuum drying temperature and vacuum also have vital impact to the final peeling rate of fibert.
Above specific embodiments of the invention are described.It will be appreciated that, the present invention is not limited to above-mentioned specific implementations, and those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (5)
1. a peeling method for fibert kind skin, is characterized in that, comprises the following steps:
(1) fibert is removed drop into after duricrust and in boiling water, keep 0.1-1 min;
(2) take out fibert, the moisture on centrifuge dripping surface;
(3) fibert is put into vacuum drying chamber, design temperature 78-82 ℃, vacuum is less than 0.2 MPa, keeps 30-50 min;
(4) fibert is put into baking machine while hot immediately, at ambient temperature, rotating speed 3-10 r/min rotation.
2. peeling method according to claim 1, is characterized in that, in described step (1), keeps 0.5 min in boiling water.
3. peeling method according to claim 1, is characterized in that, in described step (3), and 80 ℃ of temperature, vacuum 0.1 MPa.
4. peeling method according to claim 1, is characterized in that, in described step (3), fibert is put into vacuum drying chamber and keep 40 min.
5. peeling method according to claim 1, is characterized in that, in described step (4), and rotating speed 5 r/min rotation 30min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258250.5A CN104000285A (en) | 2014-06-11 | 2014-06-11 | Method for removing hazelnut seed coat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258250.5A CN104000285A (en) | 2014-06-11 | 2014-06-11 | Method for removing hazelnut seed coat |
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| CN104000285A true CN104000285A (en) | 2014-08-27 |
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| CN201410258250.5A Pending CN104000285A (en) | 2014-06-11 | 2014-06-11 | Method for removing hazelnut seed coat |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104397842A (en) * | 2014-11-18 | 2015-03-11 | 中国热带农业科学院分析测试中心 | Refrigeration peeling method for pepper |
| CN104397841A (en) * | 2014-12-04 | 2015-03-11 | 中国热带农业科学院农产品加工研究所 | Method for performing pretreatment and deep peeling on cashew kernels |
| CN105661566A (en) * | 2016-01-25 | 2016-06-15 | 中国热带农业科学院香料饮料研究所 | Seed peeling method |
| CN105852161A (en) * | 2016-04-25 | 2016-08-17 | 长沙思麦食品开发有限公司 | Peeling method for fruits and vegetables |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104397842A (en) * | 2014-11-18 | 2015-03-11 | 中国热带农业科学院分析测试中心 | Refrigeration peeling method for pepper |
| CN104397841A (en) * | 2014-12-04 | 2015-03-11 | 中国热带农业科学院农产品加工研究所 | Method for performing pretreatment and deep peeling on cashew kernels |
| CN105661566A (en) * | 2016-01-25 | 2016-06-15 | 中国热带农业科学院香料饮料研究所 | Seed peeling method |
| CN105661566B (en) * | 2016-01-25 | 2018-05-25 | 中国热带农业科学院香料饮料研究所 | A kind of peeling method of seed |
| CN105852161A (en) * | 2016-04-25 | 2016-08-17 | 长沙思麦食品开发有限公司 | Peeling method for fruits and vegetables |
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Application publication date: 20140827 |