CN101961130A - Method for peeling off walnut kernel pellicle by ultrasonic waves - Google Patents
Method for peeling off walnut kernel pellicle by ultrasonic waves Download PDFInfo
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- CN101961130A CN101961130A CN 201010533201 CN201010533201A CN101961130A CN 101961130 A CN101961130 A CN 101961130A CN 201010533201 CN201010533201 CN 201010533201 CN 201010533201 A CN201010533201 A CN 201010533201A CN 101961130 A CN101961130 A CN 101961130A
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Abstract
The invention discloses a method for peeling off walnut kernel pellicle by ultrasonic waves, which is characterized by comprising: firstly, placing walnut meat in 50 to 75 DEG C hot water and completely immersing the walnut meat in the hot water for 5 to 20 minutes; secondly, placing the heated walnut meat in a cold water container, and immersing the walnut meat in the water completely; thirdly, applying ultrasonic waves at a frequency of 1 to 10KHz and a sound intensity of 0.2 to 10W/cm<2> to the cold water for performing ultrasonic treatment for 4 to 20 minutes by using a piezoelectric ultrasonic generator to remove the pellicle on the surface of the walnut meat; and finally, manually removing the residual pellicle in the wrinkles of the walnut meat and obtaining clean hulled walnut meat. The method of the invention is efficiency, pollution-free, economic and practical, is applicable to almonds, ginkgo nut pip, pine nut pip, hazelnut pip, pea nut pip and other nut pips and suitable for industrial production and has very high promotion value.
Description
Technical field
The present invention relates to the pretreatment technology of deep processing of farm products goods, the method for the ultrasonic decortication of a kind of specifically walnut kernel.
Background technology
Contain abundant fat, protein and trace element in the walnut kernel, have high nutritive value and health-care effect.Yet, one deck kind skin is arranged the hickory kernel behind shell, contain compositions such as pigment and bitter taste, the series of products that process are bad owing to mouthfeel, and easily produce brown, influence the taste and the color and luster of product, so the kind skin of walnut kernel must be removed.
Because the walnut kernel surface irregularity has a lot of folds, plant skin and be deep in these folds, bring certain difficulty to peeling, can't adopt the mechanization mode to remove the peel.The removal method commonly used of walnut kernel kind skin mainly contains at present: baking peeling, the peeling of heating boiling method, dipping by lye method.
The peeling of first kind of baking can increase the walnut flavor of giving off a strong fragrance, but because walnut kernel is heated inhomogeneously, easily causes the part walnut to burn, and should not control in the operation, and the peeling rate is low, should not wide-scale adoption in productions.
Second kind of heating boiling method can directly be put into distilled water and be heated to boiling, and vexed system one is regularly asked the back taking-up, removes the peel by hand.Owing to soak heating process kernel is expanded, and then the cooling walnut kernel, because the effect of expanding with heat and contract with cold, kernel is met cold contraction, and kernel is separated with walnut kernel kind skin, has ensured the quality, color of walnut kernel etc. preferably." a kind of preparation method of blanched walnut meat " who proposes as the Chinese invention patent application of application number CN98101689.8, be " walnut kernel is placed in 80～100 ℃ the hot water and soaked 10～30 minutes; remove the walnut kernel crust then ", but, walnut kernel after the boiling water heating is softening, and can not remove the peel fully, follow-up manual peeling labour intensity is still higher, and the walnut kernel loss was more when this also made manual the peeling.
The third dipping by lye method adopts the dipping by lye decortication method to peel, and peeling rate height can carry out large-scale production, adopts on the suitable for producing, also is widely used method before the present walnut processing." a kind of peeling technology of hickory kernel " that proposes as the Chinese invention patent application of application number 200610134067, be " with weight concentration is that the alkali lye of 0.1-1.2% is put into container and is heated to boiling; get hickory nut kind benevolence and add wherein; make it to be heated evenly, carry out hot dipping and take off until kind of a benevolence micromicro; The w/v of walnut kernel and alkali lye is 1: 1-4, carry out kind of a benevolence hot dipping decortication and handle; The hot dipping temperature is: 85-100 ℃, the time is 3-10 minute ".But, because alkali lye has certain corrosivity, can make that the walnut fragrance after the decortication is not dense, the kernel quality descends.
Summary of the invention
The present invention is for avoiding above-mentioned existing in prior technology weak point, the method for the ultrasonic decortication of a kind of walnut kernel being provided.
Technical solution problem of the present invention adopts following technical scheme:
The characteristics of the method for the ultrasonic decortication of walnut kernel of the present invention are to operate as follows:
A, walnut kernel is placed 50～75 ℃ of hot water, make walnut kernel be immersed in the hot water 5～20 minutes fully;
B, the walnut kernel after will heating place the container that fills cold water immediately, and submergence fully in water; Utilizing the piezoelectric-type ultrasonic wave generating device that cold water is applied frequency is 0.2～10W/cm for 10KHz～1MHz, the sound intensity
2Ultrasonic echography handled 4～20 minutes, the kind skin on walnut kernel surface is come off;
C, manually remove scrappy kind of remaining skin of the recessed pleat of walnut kernel place, obtain clean blanched walnut meat.
The priority dipping of the present invention by hot water and cold water makes the kind skin generation wrinkle of walnut kernel, and planting between skin and the kernel has one deck micro-bubble or space, again by ultrasonic sound cavitation effect, makes kind of a skin peel off kernel fully, and broken, split away off.Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention's efficient height of peeling, walnut kernel is kept perfectly in the ultrasonic processing procedure simultaneously, and is not broken.
2, the heat of immersion coolant-temperature gage of the present invention's use is lower than 80 ℃, do not adopt boiling water that walnut kernel is heated, avoided the kernel after the heating boiling method is handled softening, walnut kernel still keeps the toughness of a bit, this makes when the kind skin that the recessed pleat of minute quantity walnut kernel place is kept is manually peeled, and that can not cause because of the well-done softening of walnut kernel peels off loss.
3, the ultrasonic processing of the present invention is pollution-free, avoids using corrosive alkali lye, makes that the walnut fragrance after the decortication does not change, and has guaranteed the quality of kernel.
4, the present invention is consumed energy and is lacked, and handles the economic benefit height, is a kind of energy-saving and environment friendly type walnut kernel peeling method of practicality.
5, the inventive method is efficient, pollution-free, economical and practical, also handles applicable to the decortication of nut kernels such as almond, gingko, pine nut, fibert, peanut, and is suitable for suitability for industrialized production, has great promotional value.
The specific embodiment
Walnut kernel after the shelling is placed 50 ℃ of hot water, with hot water submergence walnut kernel 20 minutes.For the walnut kernel of different sizes and different humidity, hot water temperature and dip time are different.The big or bigger walnut kernel of particle for humidity, the hot water temperature is higher a little, and Immersion time needs longer, is that 75 ℃, Immersion time are 20 minutes as the hot water temperature; Otherwise the hot water temperature can hang down, and is that 50 ℃, dip time are 5 minutes such as the hot water temperature.
Walnut kernel after the heating is put into the container that fills cold water immediately, require the complete submergence walnut kernel of cold water, utilizing the piezoelectric-type ultrasonic wave generating device that cold water is applied frequency simultaneously is 0.2～10W/cm for 10KHz～1MHz, the sound intensity
2Ultrasonic wave, handled 4-20 minute with ultrasonic wave.
Equally, the size of ultrasonic frequency, the sound intensity and the length in ultrasonic processing time are also determined according to walnut kernel humidity before the Hot water immersion and size, humidity is big or particle is bigger, and the then employed ultrasonic frequency and the sound intensity are big slightly, and the ultrasonic processing time is longer slightly.
Treat after ultrasonic the disposing, plant the skin removal efficiency and can reach more than 98%; The a small amount of scrappy kind skin that is in the recessed pleat of walnut kernel place that may exist can manually use banister brush to peel; Because the aforementioned processing process is not boiled walnut kernel, walnut kernel still keeps the toughness of a bit, and this makes follow-up when the scrappy kind of skin that the recessed pleat of walnut kernel place is had manually peeled, can not cause because of the well-done softening of walnut kernel and peel off loss.
In concrete the enforcement, the piezoelectric-type ultrasonic wave generating device can place on the ultrasonic amplitude transformer on water container top, also can be bottom or the sidepiece that places external container; Can also adopt a plurality of ultrasonic generators, be separately positioned on the different positions.
Claims (1)
1. the method for the ultrasonic decortication of walnut kernel is characterized in that operating as follows:
A, walnut kernel is placed 50～75 ℃ of hot water, make walnut kernel be immersed in the hot water 5～20 minutes fully;
B, the walnut kernel after will heating place the container that fills cold water immediately, and submergence fully in water; Utilizing the piezoelectric-type ultrasonic wave generating device that cold water is applied frequency is 0.2～10W/cm for 10KHz～1MHz, the sound intensity
2Ultrasonic echography handled 4～20 minutes, the kind skin on walnut kernel surface is come off;
C, manually remove scrappy kind of remaining skin of the recessed pleat of walnut kernel place, obtain clean blanched walnut meat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010533201 CN101961130A (en) | 2010-11-05 | 2010-11-05 | Method for peeling off walnut kernel pellicle by ultrasonic waves |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010533201 CN101961130A (en) | 2010-11-05 | 2010-11-05 | Method for peeling off walnut kernel pellicle by ultrasonic waves |
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| CN101961130A true CN101961130A (en) | 2011-02-02 |
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| CN 201010533201 Pending CN101961130A (en) | 2010-11-05 | 2010-11-05 | Method for peeling off walnut kernel pellicle by ultrasonic waves |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888275A (en) * | 2012-10-23 | 2013-01-23 | 新疆中富益健生物科技有限公司 | Methods for extracting Badam oil and proteins |
| CN102960834A (en) * | 2012-11-24 | 2013-03-13 | 张中贤 | Stripping technique for walnut kernel |
| CN102972850A (en) * | 2012-11-30 | 2013-03-20 | 北京联合大学 | Biophysical method for removing 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 |
| CN103908000A (en) * | 2014-03-03 | 2014-07-09 | 张家港市声达超声科技有限公司 | Cleaning machine capable of automatically removing walnut kernels and cortices and cleaning method thereof |
| CN104000285A (en) * | 2014-06-11 | 2014-08-27 | 安徽真心食品有限公司 | Method for removing hazelnut seed coat |
| CN104473303A (en) * | 2015-01-07 | 2015-04-01 | 山东绿润食品有限公司 | Process and device for removing inner peels of Chinese chestnuts |
| CN106108057A (en) * | 2016-06-28 | 2016-11-16 | 河南天豫薯业股份有限公司 | Radix Ipomoeae flash distillation peeling method |
| CN106333328A (en) * | 2016-08-30 | 2017-01-18 | 李伟基 | Processing process of instant dry lotus seeds |
| CN106333326A (en) * | 2016-08-30 | 2017-01-18 | 李伟基 | Instant lotus seeds |
| CN106622451A (en) * | 2017-02-22 | 2017-05-10 | 山东省农业科学院农产品研究所 | Sorghum dehulling method |
| CN106805180A (en) * | 2017-01-13 | 2017-06-09 | 江南大学 | A kind of method that polyphenol substance is extracted in desmoenzyme and the ultrasonically treated endotesta walnut kernel by band |
| CN107136524A (en) * | 2017-06-29 | 2017-09-08 | 淄博巨仁食品有限公司 | A kind of technique of opening pine nuts |
| CN107691653A (en) * | 2017-09-18 | 2018-02-16 | 广东金维牛奶有限公司 | A kind of preparation method of soymilk |
| CN109673926A (en) * | 2019-01-25 | 2019-04-26 | 湖南省农产品加工研究所 | A kind of green barking method of Kiwi berry |
| CN110583959A (en) * | 2019-10-22 | 2019-12-20 | 河北养元智汇饮品股份有限公司 | Walnut kernel peeling method and peeling device |
| CN111134270A (en) * | 2020-02-10 | 2020-05-12 | 广西壮族自治区农业科学院 | Method for peeling and removing astringent taste of walnut kernels |
| CN111758945A (en) * | 2020-05-29 | 2020-10-13 | 山东昊坤果业有限公司 | Automatic walnut peeling processing method |
| CN112971089A (en) * | 2021-04-20 | 2021-06-18 | 中国农业科学院农产品加工研究所 | High-moisture peeled walnut with low browning index and preparation method thereof |
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| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS561849A (en) * | 1979-06-14 | 1981-01-10 | Nestle Sa | Treatment of coffee by ultrasonic wave |
| CN86101174A (en) * | 1986-02-22 | 1987-09-09 | 皇冠交易株式会社 | A kind of method of producing fried seasoning peanut |
| CN101147617A (en) * | 2007-10-16 | 2008-03-26 | 山东省果树研究所 | Walnut kernel peeling method |
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Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888275A (en) * | 2012-10-23 | 2013-01-23 | 新疆中富益健生物科技有限公司 | Methods for extracting Badam oil and proteins |
| CN102960834A (en) * | 2012-11-24 | 2013-03-13 | 张中贤 | Stripping technique for walnut kernel |
| CN102960834B (en) * | 2012-11-24 | 2015-10-14 | 张中贤 | A kind of walnut kernel skin peeling technology method |
| CN102972850A (en) * | 2012-11-30 | 2013-03-20 | 北京联合大学 | Biophysical method for removing endopleura of walnut |
| 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 |
| CN103908000A (en) * | 2014-03-03 | 2014-07-09 | 张家港市声达超声科技有限公司 | Cleaning machine capable of automatically removing walnut kernels and cortices and cleaning method thereof |
| CN104000285A (en) * | 2014-06-11 | 2014-08-27 | 安徽真心食品有限公司 | Method for removing hazelnut seed coat |
| CN104473303A (en) * | 2015-01-07 | 2015-04-01 | 山东绿润食品有限公司 | Process and device for removing inner peels of Chinese chestnuts |
| CN106108057A (en) * | 2016-06-28 | 2016-11-16 | 河南天豫薯业股份有限公司 | Radix Ipomoeae flash distillation peeling method |
| CN106333328A (en) * | 2016-08-30 | 2017-01-18 | 李伟基 | Processing process of instant dry lotus seeds |
| CN106333326A (en) * | 2016-08-30 | 2017-01-18 | 李伟基 | Instant lotus seeds |
| CN106805180A (en) * | 2017-01-13 | 2017-06-09 | 江南大学 | A kind of method that polyphenol substance is extracted in desmoenzyme and the ultrasonically treated endotesta walnut kernel by band |
| CN106622451A (en) * | 2017-02-22 | 2017-05-10 | 山东省农业科学院农产品研究所 | Sorghum dehulling method |
| CN106622451B (en) * | 2017-02-22 | 2019-08-20 | 山东省农业科学院农产品研究所 | A kind of sorghum peeling method |
| CN107136524A (en) * | 2017-06-29 | 2017-09-08 | 淄博巨仁食品有限公司 | A kind of technique of opening pine nuts |
| CN107691653A (en) * | 2017-09-18 | 2018-02-16 | 广东金维牛奶有限公司 | A kind of preparation method of soymilk |
| CN109673926A (en) * | 2019-01-25 | 2019-04-26 | 湖南省农产品加工研究所 | A kind of green barking method of Kiwi berry |
| CN109673926B (en) * | 2019-01-25 | 2022-04-19 | 湖南省农产品加工研究所 | Green peeling method for kiwi fruits |
| CN110583959A (en) * | 2019-10-22 | 2019-12-20 | 河北养元智汇饮品股份有限公司 | Walnut kernel peeling method and peeling device |
| CN111134270A (en) * | 2020-02-10 | 2020-05-12 | 广西壮族自治区农业科学院 | Method for peeling and removing astringent taste of walnut kernels |
| CN111758945A (en) * | 2020-05-29 | 2020-10-13 | 山东昊坤果业有限公司 | Automatic walnut peeling processing method |
| CN112971089A (en) * | 2021-04-20 | 2021-06-18 | 中国农业科学院农产品加工研究所 | High-moisture peeled walnut with low browning index and preparation method thereof |
| CN112971089B (en) * | 2021-04-20 | 2022-04-08 | 中国农业科学院农产品加工研究所 | High-moisture peeled walnut with low browning index and preparation method thereof |
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Open date: 20110202 |