CN101147617A - Walnut kernel peeling method - Google Patents
Walnut kernel peeling method Download PDFInfo
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- CN101147617A CN101147617A CNA2007101131594A CN200710113159A CN101147617A CN 101147617 A CN101147617 A CN 101147617A CN A2007101131594 A CNA2007101131594 A CN A2007101131594A CN 200710113159 A CN200710113159 A CN 200710113159A CN 101147617 A CN101147617 A CN 101147617A
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Abstract
The present invention relates to a method for removing walnut kernel seed cover under the condition of normal temperature after the walnut kernel is frozen at low-temperature. It is characterized by that for dried walnut kernel the walnut kernel is soaked in the water with 0-10deg.C, after the walnut kernel is reconstituted, the walnut kernel is frozen; for fresh walnut kernel whose water content is greater than or equal to 45% it has no need of reconstitution, can be directly frozen; its freeze temperature is -5 - -25deg.C; after a lyer of ice cover is formed on the walnut kernel surface, the walnut kernel can be taken out and can be placed at normal temperature or into water with 30-60deg.C to melt the ice cover, then a manual method or mechanical method can be adopted to strip seed cover of walnut kernel. Its technological process includes the following steps: reconstitution, freezing, melting, stripping seed cover so as to obtain finished product.
Description
Technical field
The present invention relates to a kind of new method of walnut kernel peeling, specifically a kind of method of utilizing low temperature walnut kernel to be removed again walnut kernel kind skin after freezing under normal temperature condition.
Background technology
The very main edible part of walnut is a walnut kernel, and walnut kernel is nutritious, and the effect of kidney tonifying, warm lung, ease constipation is arranged, and the usefulness that the brain tonic of keeping fit is arranged again, preserve youthful looks and prolong life has the title of " Wan Nianzi " again.Contain abundant unrighted acid in the walnut kernel, and contain compositions such as linoleic acid glyceride that human body can not synthesize and leukotrienes, olein, be widely used in food, medicine and other fields, have the cholesterol of reduction, prevent artery sclerosis, benefiting qi and nourishing blood, beauty treatment and the anti-ageing effect of waiting for a long time.Contained phosphatide has brain supplementing action, is the metabolic base substance of nerve cell, the natural brain gold so walnut kernel is otherwise known as.
Walnut kernel has dry product, bright product, no matter be dry product, bright product, or the processed goods of walnut kernel, commercially available walnut kernel all has kind of a skin, and it is very inconvenient to peel off kind of skin, and do not peel off kind of a skin, when edible, influenced taste quality, especially the walnut kernel of eating raw, when kind of skin is arranged, the taste quality extreme difference, give people edible bring unhappy.
The method of peeling off kind of skin at present is based on " wet alkaline process ", so-called " wet alkaline process ", be in jacketed pan, to add water, add 1～2% NaOH and 2% the formulated decortication liquid of decorticating agent again, heating also remains on about 90 ℃, putting into walnut kernel soaked 3～5 minutes, walnut kernel kind skin blackening brown, take out after soft and soggyization of the kind corrosion with walnut kernel, slough kind of a skin with the demineralized water flushing, and then the demineralized water of putting into 1% citric acid soaked 12～15 hours, made after the abundant imbibition of walnut kernel for using.The shortcoming of this method is: rotting rate is higher when soft and soggyization of walnut kernel kind, and nutrition runs off serious, has influenced the credit quality and the use value of walnut kernel, does not also meet the requirement of pollution-free food and pollution-free food.
Summary of the invention
The purpose of this invention is to provide the method that a kind of new walnut takes off kind of skin, this method can be quick, a large amount of takes off kind of a skin, and the kernel that takes off behind kind of the skin is clean, and color is beautiful; Walnut kernel never degenerates, and is nuisanceless, pollution-free; From skin rate height, easily decortication; Meet pollution-free food and requirements of green environmental protection.Fundamentally solve the problem of walnut kernel peeling difficulty.
In order to achieve the above object, the technical scheme that the present invention takes is: for the walnut kernel dry product, be 0 ℃～10 ℃ water logging complex peach kernel with temperature, make walnut kernel dry product rehydration; Walnut kernel after the rehydration is carried out freezing, and, do not need rehydration, directly carry out freezing for the bright walnut kernel of water content 〉=45%; Cryogenic temperature is-5～-25 ℃; Treat that the ice clothing appears in walnut kernel surface, take out and freeze the warm water ice-melt clothing that the walnut kernel that the ice clothing is arranged places air under the normal temperature or 30～60 ℃, adopt the kind skin of artificial or mechanical stripping walnut kernel to get final product then.
Its technical process is: rehydration-→ freezing-→ melt-→ peel off kind of a skin-→ finished product.
Rehydration: the walnut kernel dry product is selected earlier, removed rottenly, the water of putting into temperature and be 0 ℃～10 ℃ soaks, and makes walnut kernel dry product rehydration, and its water content is for spending 40% or more.
Freezing: it is freezing that the walnut kernel after the rehydration is put into freezer, and the bright walnut kernel for water content 〉=45% does not need rehydration, directly carries out freezing; Cryogenic temperature is-5～-25 ℃, makes the walnut kernel surface ice clothing occur and is degree.
Melt: the walnut kernel of the ice clothing that will freeze is placed on＞melt naturally under 0 ℃ the normal temperature, or puts into 30～60 ℃ warm water and melt.
Peel off kind of a skin: the walnut kernel after will icing clothing and melting carries out kind of a skin to be peeled off, and just can produce finished product.Stripping means the personnel that can adopt peel off by hand, also can adopt mechanical stripping.The method of mechanical stripping is a lot, as brusher, mechanical agitation etc.
Because it is freezing that the present invention carries out walnut kernel earlier, make freezing the going up of kind skin of walnut kernel ice clothing, and then melt, to plant skin like this and just can be easy to peel off, method is simple, and is easy to operate; And can satisfy requirements of large-scale production, and do not pollute.Therefore to have method simple, easy to operate in the present invention; Can be quick, a large amount of take off kind of a skin, the kernel that takes off behind kind of the skin is clean, color is beautiful; Walnut kernel never degenerates, and is nuisanceless, pollution-free; From skin rate height, easily decortication; Meet characteristics such as pollution-free food and environment protection requirement.Fundamentally solve the problem of walnut kernel peeling difficulty.
Four, the specific embodiment
The technical scheme that the present invention takes is: for the walnut kernel dry product, be 0 ℃～10 ℃ water logging complex peach kernel with temperature, make walnut kernel dry product rehydration; Walnut kernel after the rehydration is carried out freezing, and, do not need rehydration, directly carry out freezing for the bright walnut kernel of water content 〉=45%; Cryogenic temperature is-5～-25 ℃; Treat that the ice clothing appears in walnut kernel surface, take out and freeze the warm water ice-melt clothing that the walnut kernel that the ice clothing is arranged places air under the normal temperature or 30～60 ℃, adopt the kind skin of artificial or mechanical stripping walnut kernel to get final product then.
Its technical process is: rehydration-→ freezing-→ melt-→ peel off kind of a skin-→ finished product.
Rehydration: the walnut kernel dry product is selected earlier, removed rottenly, the water of putting into temperature and be 0 ℃～10 ℃ soaks, and makes walnut kernel dry product rehydration, and its water content is for spending 40% or more.
Freezing: it is freezing that the walnut kernel after the rehydration is put into freezer, and the bright walnut kernel for water content 〉=45% does not need rehydration, directly carries out freezing; Cryogenic temperature is-5～-25 ℃, makes the walnut kernel surface ice clothing occur and is degree.
Melt: the walnut kernel of the ice clothing that will freeze is placed on＞melt naturally under 0 ℃ the normal temperature, or puts into 30～60 ℃ warm water and melt.
Peel off kind of a skin: the walnut kernel after will icing clothing and melting carries out kind of a skin to be peeled off, and just can produce finished product.Stripping means the personnel that can adopt peel off by hand, also can adopt mechanical stripping.The method of mechanical stripping is a lot, as brusher, mechanical agitation etc.
Embodiment one:
With the walnut kernel dry product, be 0 ℃～10 ℃ water logging complex peach kernel in temperature, make walnut kernel dry product rehydration to water content 〉=40%; Walnut kernel after the rehydration is carried out freezing, cryogenic temperature is-5～-8 ℃, and cooling time is 12 hours; Treat that the ice clothing appears in walnut kernel surface, take out freeze the walnut kernel that the ice clothing is arranged and be placed on＞0 ℃ normal temperature under thawing naturally in the air; Adopt the kind skin of manual removal walnut kernel to get final product then.As can adopt the kind skin of mechanical stripping walnut kernel to get final product then with ice-melt clothing in 30～60 ℃ the warm water when producing in enormous quantities.The method of mechanical stripping is a lot, as brusher, mechanical agitation etc.
Embodiment two:
Bright walnut kernel is directly carried out freezing, cryogenic temperature is-20～-25 ℃, and cooling time is 1 hour; Treat that the ice clothing appears in walnut kernel surface, take out freeze the walnut kernel that the ice clothing is arranged and be placed on＞0 ℃ normal temperature under thawing naturally in the air; Adopt the kind skin of manual removal walnut kernel to get final product then.As can adopt the kind skin of mechanical stripping walnut kernel to get final product then with ice-melt clothing in 30～60 ℃ the warm water when producing in enormous quantities.The method of mechanical stripping is a lot, as brusher, mechanical agitation etc.
Therefore it is simple that the present invention has method, easy to operate; Can be quick, a large amount of take off kind Skin, the kernel that takes off behind kind of the skin is clean, and color is beautiful; Walnut kernel never degenerates, and is nuisanceless, pollution-free; From skin Rate height, easily decortication; Meet the characteristics such as pollution-free food and environment protection requirement. Fundamentally solve walnut kernel Take off kind of the problem of skin difficulty.
Claims (1)
1. a walnut kernel peeling method is characterized in that the walnut kernel dry product, is 0 ℃～10 ℃ water logging complex peach kernel with temperature, makes walnut kernel dry product rehydration; Walnut kernel after the rehydration is carried out freezing, and, do not need rehydration, directly carry out freezing for the bright walnut kernel of water content 〉=45%; Cryogenic temperature is-5～-25 ℃; Treat that the ice clothing appears in walnut kernel surface, take out and freeze the warm water ice-melt clothing that the walnut kernel that the ice clothing is arranged places air under the normal temperature or 30～60 ℃, adopt the kind skin of artificial or mechanical stripping walnut kernel to get final product then;
Its technical process is: rehydration-→ freezing-→ melt-→ peel off kind of a skin-→ finished product;
Rehydration: the walnut kernel dry product is selected earlier, removed rottenly, the water of putting into temperature and be 0 ℃～10 ℃ soaks, and makes walnut kernel dry product rehydration, and its water content is more than 40%;
Freezing: it is freezing that the walnut kernel after the rehydration is put into freezer, and the bright walnut kernel for water content 〉=45% does not need rehydration, directly carries out freezing; Cryogenic temperature is-5～-25 ℃, makes the walnut kernel surface ice clothing occur and is degree;
Melt: the walnut kernel of the ice clothing that will freeze is placed on＞melt naturally under 0 ℃ the normal temperature, or puts into 30～60 ℃ warm water and melt;
Peel off kind of a skin: the walnut kernel after will icing clothing and melting carries out kind of a skin to be peeled off, and just can produce finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101131594A CN101147617A (en) | 2007-10-16 | 2007-10-16 | Walnut kernel peeling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101131594A CN101147617A (en) | 2007-10-16 | 2007-10-16 | Walnut kernel peeling method |
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| CN101147617A true CN101147617A (en) | 2008-03-26 |
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| CNA2007101131594A Pending CN101147617A (en) | 2007-10-16 | 2007-10-16 | Walnut kernel peeling method |
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| CN (1) | CN101147617A (en) |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791142A (en) * | 2010-03-29 | 2010-08-04 | 陕西科技大学 | Method for peeling almond or peach seed by freezing |
| CN101961130A (en) * | 2010-11-05 | 2011-02-02 | 合肥工业大学 | Method for peeling off walnut kernel pellicle by ultrasonic waves |
| CN102210478A (en) * | 2011-04-18 | 2011-10-12 | 法蕾 | Technology for rapidly separating skin of almonds |
| CN102423101A (en) * | 2011-08-23 | 2012-04-25 | 安徽詹氏食品有限公司 | Microwave hull breaking method for walnuts |
| CN102618380A (en) * | 2012-04-06 | 2012-08-01 | 合肥工业大学 | Method for removing oil tea seed coats |
| CN103859555A (en) * | 2012-12-18 | 2014-06-18 | 中国林业科学研究院林业研究所 | Method for removing walnut kernel pellicles |
| 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 |
| CN105919142A (en) * | 2016-04-28 | 2016-09-07 | 湖州师范学院 | Walnut green seedcase peeling method |
| JP2016223728A (en) * | 2015-06-02 | 2016-12-28 | 三菱電機株式会社 | refrigerator |
| CN106307558A (en) * | 2016-09-07 | 2017-01-11 | 合肥元政农林生态科技有限公司 | Washing husking method for sesame seeds |
| CN107028201A (en) * | 2017-01-24 | 2017-08-11 | 海南大学 | A kind of pepper freezes quick peeling method |
| CN107156877A (en) * | 2017-05-16 | 2017-09-15 | 贵州修文瑞源酒庄有限公司 | A kind of Kiwi berry barking method and mashed fruit of kiwi fruit processing method |
| CN109832339A (en) * | 2019-03-08 | 2019-06-04 | 云南农业大学 | A kind of plant base smear type walnut cheese and preparation method thereof |
| CN110463771A (en) * | 2019-09-18 | 2019-11-19 | 江南大学 | A kind of preparation method of the Walnut protein powder of high protein content |
| CN110536610A (en) * | 2017-03-28 | 2019-12-03 | 马克斯·迪茨 | Plant shell material and the disintegration of ingredient/separate and decomposition method, to obtain and produce plant component and plant-base fiber product |
| CN110771860A (en) * | 2019-11-19 | 2020-02-11 | 何军 | Walnut chili sauce and preparation method thereof |
| CN113875960A (en) * | 2021-09-30 | 2022-01-04 | 南京农业大学 | Processing method of instant peeled fresh walnut kernels |
-
2007
- 2007-10-16 CN CNA2007101131594A patent/CN101147617A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791142A (en) * | 2010-03-29 | 2010-08-04 | 陕西科技大学 | Method for peeling almond or peach seed by freezing |
| CN101961130A (en) * | 2010-11-05 | 2011-02-02 | 合肥工业大学 | Method for peeling off walnut kernel pellicle by ultrasonic waves |
| CN102210478A (en) * | 2011-04-18 | 2011-10-12 | 法蕾 | Technology for rapidly separating skin of almonds |
| CN102423101A (en) * | 2011-08-23 | 2012-04-25 | 安徽詹氏食品有限公司 | Microwave hull breaking method for walnuts |
| CN102618380A (en) * | 2012-04-06 | 2012-08-01 | 合肥工业大学 | Method for removing oil tea seed coats |
| CN102618380B (en) * | 2012-04-06 | 2013-08-14 | 合肥工业大学 | Method for removing oil tea seed coats |
| CN103859555B (en) * | 2012-12-18 | 2016-07-06 | 中国林业科学研究院林业研究所 | A kind of removal methods of endopleura of walnut |
| CN103859555A (en) * | 2012-12-18 | 2014-06-18 | 中国林业科学研究院林业研究所 | Method for removing walnut kernel pellicles |
| JP2016223728A (en) * | 2015-06-02 | 2016-12-28 | 三菱電機株式会社 | refrigerator |
| 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 |
| CN105919142A (en) * | 2016-04-28 | 2016-09-07 | 湖州师范学院 | Walnut green seedcase peeling method |
| CN106307558A (en) * | 2016-09-07 | 2017-01-11 | 合肥元政农林生态科技有限公司 | Washing husking method for sesame seeds |
| CN107028201A (en) * | 2017-01-24 | 2017-08-11 | 海南大学 | A kind of pepper freezes quick peeling method |
| CN110536610A (en) * | 2017-03-28 | 2019-12-03 | 马克斯·迪茨 | Plant shell material and the disintegration of ingredient/separate and decomposition method, to obtain and produce plant component and plant-base fiber product |
| CN107156877A (en) * | 2017-05-16 | 2017-09-15 | 贵州修文瑞源酒庄有限公司 | A kind of Kiwi berry barking method and mashed fruit of kiwi fruit processing method |
| CN109832339A (en) * | 2019-03-08 | 2019-06-04 | 云南农业大学 | A kind of plant base smear type walnut cheese and preparation method thereof |
| CN110463771A (en) * | 2019-09-18 | 2019-11-19 | 江南大学 | A kind of preparation method of the Walnut protein powder of high protein content |
| CN110771860A (en) * | 2019-11-19 | 2020-02-11 | 何军 | Walnut chili sauce and preparation method thereof |
| CN113875960A (en) * | 2021-09-30 | 2022-01-04 | 南京农业大学 | Processing method of instant peeled fresh walnut kernels |
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Open date: 20080326 |