CN1071320A - The method for decolouring and peeling of walnut kernel - Google Patents
The method for decolouring and peeling of walnut kernel Download PDFInfo
- Publication number
- CN1071320A CN1071320A CN 92110912 CN92110912A CN1071320A CN 1071320 A CN1071320 A CN 1071320A CN 92110912 CN92110912 CN 92110912 CN 92110912 A CN92110912 A CN 92110912A CN 1071320 A CN1071320 A CN 1071320A
- Authority
- CN
- China
- Prior art keywords
- walnut kernel
- minutes
- undressing
- decolouring
- metasilicate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 235000009496 Juglans regia Nutrition 0.000 title claims abstract description 45
- 235000020234 walnut Nutrition 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 20
- 240000007049 Juglans regia Species 0.000 title 1
- 241000758789 Juglans Species 0.000 claims abstract description 44
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 9
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 7
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 3
- BHDAXLOEFWJKTL-UHFFFAOYSA-L dipotassium;carboxylatooxy carbonate Chemical compound [K+].[K+].[O-]C(=O)OOC([O-])=O BHDAXLOEFWJKTL-UHFFFAOYSA-L 0.000 claims description 3
- VTIIJXUACCWYHX-UHFFFAOYSA-L disodium;carboxylatooxy carbonate Chemical group [Na+].[Na+].[O-]C(=O)OOC([O-])=O VTIIJXUACCWYHX-UHFFFAOYSA-L 0.000 claims description 3
- 229910052700 potassium Inorganic materials 0.000 claims description 3
- 239000011591 potassium Substances 0.000 claims description 3
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 229960001922 sodium perborate Drugs 0.000 claims description 3
- 229940045872 sodium percarbonate Drugs 0.000 claims description 3
- YKLJGMBLPUQQOI-UHFFFAOYSA-M sodium;oxidooxy(oxo)borane Chemical compound [Na+].[O-]OB=O YKLJGMBLPUQQOI-UHFFFAOYSA-M 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 5
- 239000007864 aqueous solution Substances 0.000 claims 1
- 238000002791 soaking Methods 0.000 claims 1
- 239000002932 luster Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 5
- 239000003643 water by type Substances 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 235000019606 astringent taste Nutrition 0.000 description 2
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol Chemical compound C1C=C2C[C@@H](O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000019640 taste Nutrition 0.000 description 2
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Natural products OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- WHUUTDBJXJRKMK-UHFFFAOYSA-N Glutamic acid Natural products OC(=O)C(N)CCC(O)=O WHUUTDBJXJRKMK-UHFFFAOYSA-N 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 240000006413 Prunus persica var. persica Species 0.000 description 1
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
- 229930003270 Vitamin B Natural products 0.000 description 1
- 229930003268 Vitamin C Natural products 0.000 description 1
- 229930003427 Vitamin E Natural products 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical class ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 235000012000 cholesterol Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 1
- 235000013922 glutamic acid Nutrition 0.000 description 1
- 239000004220 glutamic acid Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- MWNQXXOSWHCCOZ-UHFFFAOYSA-L sodium;oxido carbonate Chemical compound [Na+].[O-]OC([O-])=O MWNQXXOSWHCCOZ-UHFFFAOYSA-L 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001256 tonic effect Effects 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 235000019156 vitamin B Nutrition 0.000 description 1
- 239000011720 vitamin B Substances 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
Images
Landscapes
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
The present invention relates to a kind of decolouring, peeling method of walnut kernel.This method successively is immersed in walnut kernel in metasilicate solution or the hydrogen peroxide addition product solution decolours, and undresses with the container of belt stirrer again, promptly obtains decolouring respectively, the walnut kernel of undressing.Good through the inventive method gained walnut kernel color and luster, look shallow, can prevent damaging by worms, and is difficult for that rancidity is arranged, undress easily.Method is simple and easy to implement, and is suitable for industrial-scale production, and less demanding to equipment, cost is low.
Description
The present invention relates to the processing method of food, the decolouring of a kind of walnut kernel of more specifically saying so, the method for undressing.
Walnut kernel contains abundant vitamin A, B, C, E, and protein, unrighted acid and glutamic acid, and the function that reduces cholesterol, moist skin, keeps fit brain tonic is arranged, and therefore very big edibility is arranged.But since different types of walnut kernel coat be yellowish, deep yellow, brown is arranged, different color such as black purple, therefore make the walnut kernel outward appearance not good enough.The coat of walnut kernel has astringent taste in addition, has influenced the taste of food.Walnut kernel has been put easy to be infested for a long time, and rancidity is arranged, and is difficult for storing.
At Res.Ind.1984,29(1), reported method in 10-16(Eng) with sodium chlorite and hydrochloric acid decolouring.This method can form a spot of chloromethanes carcinogen in decolorization, if cleaning is unclean, can influence health.This method decolorizing effect is also bad, and walnut kernel still has glassy yellow.Its step of also not undressing is so product has astringent taste.The method equipment needed thereby requires corrosion-resistant, thereby has improved production cost.Walnut kernel is undressed mainly to soak with alkali and is manually torn clothing at present, and product has the taste that the alkali flavor influences peach kernel.
The invention provides a kind of undressing easily, good decolorizing effect, unharmful substance produces, and can prolong the decolouring of the walnut kernel of period of storage, the method for undressing.
The present invention implements like this, and (1) is soaked in water the walnut kernel after shelling 0.2～5 hour; (2) soaked 1～60 minute with the metasilicate solution that concentration is 0.5～10%, temperature is room temperature～100 ℃ again, to remove the oil on the walnut kernel coat, wash with water more totally to pH be 7; (3) soaked 5～60 minutes with the decolorizer hydrogen peroxide addition product that concentration is 0.1～10%, temperature is room temperature～80 ℃, water cleans to pH7 again; (4) the walnut kernel oven dry after cleaning, bake out temperature is 40～90 ℃, and drying time is 10～90 minutes, or places the walnut kernel after cleaning the machine of undressing to undress, oven dry again, and bake out temperature is 40～90 ℃, drying time is 10～90 minutes.
The metasilicate that the present invention adopts is sodium metasilicate, potassium metasilicate.The liquid-solid ratio of metasilicate solution and walnut kernel is 1: 1～10: the 1(weight ratio).The decolorizer that the present invention adopts is the addition product of hydrogen peroxide, and as percarbonate (SODIUM PERCARBONATE, potassium percarbonate), perborate (sodium perborate, potassium perborate), liquid-solid ratio is 1: 1～10: the 1(weight ratio).
The container that the machine of undressing of the present invention can stir with band just can, alr mode can stir or the liquid stirring that circulates with common stirring arm, air.Drying plant can be the crawler type continuous dryer, also available baking oven.
Not only color and luster is good for decolouring that is made by the present invention or blanched walnut meat, and can insect protected, and mildew-resistant does not contain harmful substance, and processing method is simple, and is less demanding to equipment, and cost is low.
Fig. 1 is seen in technological process of the present invention.
Embodiment 1.
(1) 40 gram walnut kernel are soaked in the water of room temperature pulls out after 30 minutes; (2) in 300 ml waters, add 12 gram sodium metasilicates, add walnut kernel then and soaked 60 minutes, pull out, wash to pH be 7; (3) add 6 gram SODIUM PERCARBONATEs in 300 ml waters, the walnut kernel of putting into again after cleaning soaked 60 minutes, pulled out, wash to pH be 7, be the walnut kernel of decolouring.
Embodiment 2.
(1) 40 gram walnut kernel was soaked in water 60 minutes, pull out; (2) in 300 ml waters, add 12 gram sodium metasilicates, be warming up to 80 ± 5 ℃, add walnut kernel again and soaked 3 minutes, pull out, wash with water to pH7; (3) add 6 gram SODIUM PERCARBONATEs in 300 ml waters, temperature is 30 ± 5 ℃, adds the walnut kernel after cleaning again, soaks and pulls out in 25 minutes, is the walnut kernel of decolouring.
Embodiment 3.
(1) 5 kilograms of walnut kernel are soaked in water pulled out in 30 minutes; (2) in 21 premium on currency, add 840 gram sodium metasilicates, be warming up to 50 ± 5 ℃, add walnut kernel and soaked 30 minutes, pull out, wash with water to pH7; (3) in 21 premium on currency, add 420 gram SODIUM PERCARBONATEs, be warming up to 30 ± 5 ℃, add the walnut kernel immersion of cleaning again and pulled out in 25 minutes, wash with water, promptly get the walnut kernel that decolours to pH7.
Embodiment 4.
Except the solution of sodium metasilicate through temperature is controlled at 80 ± 5 ℃, all the other conditions are with embodiment 3.
Embodiment 5.
The wet walnut kernel of embodiment 3 after decolouring placed baking oven, and oven temperature is controlled at 60 ℃, and after 60 minutes, the walnut kernel that can obtain doing is easy to preserve.
Wet walnut kernel after embodiment 3 decolourings is placed 21 premium on currency, and adding has in the machine of undressing of agitator together, stirs 10 minutes, and discharging was dried by the fire 60 minutes down in 60 ℃ in baking oven again, promptly got the walnut kernel of peeling.
Through the decolouring, the decortication after the walnut kernel look near white, do not influence nutritional labeling, and can prevent damaging by worms, the summer do not have rancidity yet.The economic benefit of look shallow walnut kernel is good than the walnut kernel of color depth.
Claims (7)
1, the method for a kind of decolouring of walnut kernel decortication is characterized in that carrying out as follows:
(1) walnut kernel after shelling was soaked in water 0.2～5 hour,
(2) with concentration is 0.5～10%, temperature is room temperature～100 ℃ metasilicate aqueous solution soaking 1 minute～60 minutes, liquid-solid ratio was 1: 1～10: 1 (weight ratio), wash with water again to pH7,
(3) soaked 5 minutes～1 hour with the hydrogen peroxide addition product solution that concentration is 0.1～10%, temperature is room temperature～80 ℃, liquid-solid ratio is 1: 1～10: 1 (weight ratio), again water clean to pH be 7.
(4) the walnut kernel drying after cleaning or undress, dry.
2, decolouring as claimed in claim 1, the method for undressing, the walnut kernel after it is characterized in that cleaning was dried 10 minutes～90 minutes at 40～90 ℃ in dryer or baking oven.
3, decolouring as claimed in claim 1, the method for undressing, the walnut kernel after it is characterized in that cleaning stirred 10 minutes in the machine of undressing of belt stirrer, and discharging places baking oven to dry by the fire 10 minutes～90 minutes down at 40～90 ℃.
4, as claim 1,2 described decolourings, the method for undressing, it is characterized in that metasilicate solution is sodium metasilicate or potassium metasilicate solution.
5, as claim 1,3 described decolourings, the method for undressing, it is characterized in that metasilicate solution is sodium metasilicate or potassium metasilicate solution.
6, as claim 1,2 described decolourings, the method for undressing, it is characterized in that the hydrogen peroxide addition product is a SODIUM PERCARBONATE, potassium percarbonate, sodium perborate, potassium perborate.
7, as claim 1,3 described decolourings, the method for undressing, it is characterized in that the hydrogen peroxide addition product is a SODIUM PERCARBONATE, potassium percarbonate, sodium perborate, potassium perborate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110912 CN1028280C (en) | 1992-09-24 | 1992-09-24 | Method for processing walnut kernels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110912 CN1028280C (en) | 1992-09-24 | 1992-09-24 | Method for processing walnut kernels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1071320A true CN1071320A (en) | 1993-04-28 |
| CN1028280C CN1028280C (en) | 1995-04-26 |
Family
ID=4945034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92110912 Expired - Fee Related CN1028280C (en) | 1992-09-24 | 1992-09-24 | Method for processing walnut kernels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1028280C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438782C (en) * | 2002-07-30 | 2008-12-03 | 斯特里斯公司 | Method and apparatus for killing human pathogens from nut surfaces |
| CN108552513A (en) * | 2018-04-20 | 2018-09-21 | 西藏农牧学院 | A kind of preparation method for removing fur clothing detoxification peach kernel |
-
1992
- 1992-09-24 CN CN 92110912 patent/CN1028280C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100438782C (en) * | 2002-07-30 | 2008-12-03 | 斯特里斯公司 | Method and apparatus for killing human pathogens from nut surfaces |
| CN108552513A (en) * | 2018-04-20 | 2018-09-21 | 西藏农牧学院 | A kind of preparation method for removing fur clothing detoxification peach kernel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1028280C (en) | 1995-04-26 |
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