CN103262994B - Method for preparing instant pure banana powder - Google Patents
Method for preparing instant pure banana powder Download PDFInfo
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- CN103262994B CN103262994B CN201310158682.4A CN201310158682A CN103262994B CN 103262994 B CN103262994 B CN 103262994B CN 201310158682 A CN201310158682 A CN 201310158682A CN 103262994 B CN103262994 B CN 103262994B
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Abstract
The invention relates to a method for preparing an instant pure banana powder, belonging to a food processing technology field. The method comprises the following steps of: cutting bananas into segments, immersing the segments in a color protection liquid for 5-10min, preparing a slurry, drying the slurry in a roller drying machine, conveying prepared banana diaphragms into a crusher by cold air blast for crushing; obtaining the instant pure banana powder, wherein the temperature of the cold air blast is 8-10 DEG C, the wind speed is 6-8m/s, the crushing granularity is 60-80 meshes. Compared with the method for preparing the banana powder in prior art, the method for preparing the instant pure banana powder in the invention has advantages of no additive, no accessory and no any filler, and guarantees purity and nutrition components of the banana powder. The instant pure banana powder after dissolved has advantages of uniform state, thick banana local flavor, smooth mouthfeel and pure taste, and cold air conveying makes the a water content of the prepared banana powder lower than 5.5wt%, thereby prolonging a shelf-life.
Description
Technical field
The present invention relates to a kind of preparation method of instant pure banana powder, belong to food processing technology field.
Background technology
Banana belongs to Musaceae and belongs to, it is one of Perenniporia martius " four large fruits ", also be the tropical fruit (tree) of the most extensively cultivation in the world, there is nutritious, the soft China Resources of meat, the sweet and tasty mouth of taste, and to heat-clearing, detoxify, promote the production of body fluid, ease constipation, defaecation, diuresis, step-down, antiabortive etc. there is significant physiological function.
Banana is transition type fruit, will soon go bad rotten, be difficult to long-term preservation, therefore all can cause very large economic loss every year after plucking under normal temperature.Being processed into banaina is the important measures solving banana storing and reprocessing.Banaina belongs to new product at home, has to be easy to preserve, to transport, to apply feature easily, and have the laudatory title of " plant milk powder ", furnishing pasty state of can washing by water directly is taken always.Also can add in milk powder and make banana milk powder.Banaina can also as the batching of the food such as ice cream, beverage, cake, soymilk, and potential market is very wide.
The preparation technology of current banaina can be divided into two large classes, i.e. cool-drying technique and Technology of Thermal Drying.Cool-drying technique mainly vacuum freeze-drying technique, utilize ice crystal sublimation principle, first material is frozen into below eutectic point, make the ice that the moisture in material becomes solid-state, the heat that then giving distillation in vacuum needs makes the moisture in material be converted into steam by ice crystal, is removed by the water vapour coagulator condensation in vacuum system, thus acquisition dried product, this method can retain the original nutritional labeling of banana to greatest extent, but this method energy consumption is large, and cost is high; Technology of Thermal Drying mainly contains drying process with atomizing, the method is in process of production in order to make the easy atomization drying of material, need to add dispersant, anticaking agent or other auxiliary materials, while affecting banaina aesthetic quality, due to a large amount of interpolations of dispersant, anticaking agent or other auxiliary materials, banaina nutritive value certainly will be caused significantly to decline, pure banaina can not be obtained.And banaina granularity is meticulous after there is spraying dry, the problems such as dissolved property is poor.
Chinese patent CN1432293 (application number 02100338.6) discloses the technical matters that a kind of spray drying process produces pure banaina, banana pulp through heat kill enzyme, protect look, pectin process, high speed shear emulsification, second homogenate, carry out high-pressure spray-drying, dry to be completed by high-pressure fog, fixed fluidized bed, vibrated fluidized bed order.Initial EAT 150 ~ 190 DEG C, leaving air temp 70 ~ 90 DEG C, fixed fluidized bed and vibrated fluidized bed wind-warm syndrome is 70 ~ 90 DEG C.In this technique, in banana crown rots, except color stabilizer, also add dispersant and anticaking agent, and the banaina fine size that spraying is obtained, water-soluble rear easy caking, reunion, dissolved property is poor.
Chinese patent CN102793120A(application number 201210262389.8) disclose a kind of preparation method of complete banana power, be through green banana inspection, pretreatment, protect look, pulverize making beating, enzymolysis, centrifugation, drying, screening, inspection, packaging warehouse-in, the complete banana power obtained is rich in resistant starch, matter structure is fine and smooth, pure color, nutrition and health care prominent function.It is hard-packed crystalline particle to faint yellow that product appearance is milk white, and delicate mouthfeel is without astringent taste, nonhygroscopic, can well retain original nutritional labeling.
The said goods due to due to production technology, higher, the dissolved property difference of obtained banaina water content and not easily storing.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of preparation method of instant pure banana powder.
Technical scheme of the present invention is as follows:
A preparation method for instant pure banana powder, comprises step as follows:
1), after being removed the peel by banana, 1 ~ 1.5cm segment is cut into;
2) the banana section cut is put into colour protecting liquid immediately and is soaked 5 ~ 10min,
3) by step 2) banana section after the process pure water of putting into 80 ~ 90 DEG C carries out break process 5 ~ 8min, makes banana pulp; The mass ratio of described banana section and pure water is 1:(1 ~ 2);
4) banana pulp that step 3) is obtained is conveyed in roller drier and carries out drying process, the drum surface temperature of described roller drier is 130 ~ 135 DEG C, the rotating speed of cylinder is 2 ~ 4r/min, and drying time, 10 ~ 20S, obtained the banana diaphragm of water content 7wt% ~ 10wt%;
5) banana diaphragm step 4) obtained is delivered in pulverizer through cold wind and pulverizes; The temperature of described cold wind is 8 ~ 10 DEG C, and cold wind wind speed is 6 ~ 8m/s, is crushed to granularity 60 ~ 80 order, obtained instant pure banana powder.
Banana raw material described in above-mentioned steps (1) with fresh, be that preferably described banana variety is Dengmai County, Hainan Province banana without eight to ninety percent of insect pest ripe banana.
According to the present invention, preferably, described step 2) described in colour protecting liquid be adopt citric acid, vitamin C and sodium chloride solution formulated, citric acid: vitamin C: the volume ratio of sodium chloride solution is: (1 ~ 2): (1 ~ 1.5): (1 ~ 1.5), the mass percentage concentration of described citric acid, vitamin C, sodium chloride solution is respectively 0.03%, 0.2%, 0.05%.
Preferred further, described citric acid: vitamin C: the volume ratio of sodium chloride solution is: 1.5:1:1.
According to the present invention, preferably, in described step 3), the weight ratio of banana Duan Yushui is 1:(1.5 ~ 2), further preferably: the weight ratio of banana Duan Yushui is 1:1.5.
According to the present invention, preferably, in step 4) after banana section break process, cross 40 ~ 50 mesh sieves and remove the black seed of banana and crude fibre.The black seed of banana and coarse-fibred existence reduce the molten stability of solution of banaina, make banaina in course of dissolution, very easily occur precipitation, simultaneously, because the black seed of banana and crude fibre exist the palatability greatly reducing banaina mouthfeel, experiment proves, after removing the black seed of banana and crude fibre, obtained banaina is easy to dissolve, dissolved property is good, prevented from caking, formation precipitation after dissolving.
The present invention is preferred, is delivered in pulverizer by banana diaphragm obtained for step 4) pulverizes through cold wind; The temperature of cold wind is 10 DEG C, and cold wind wind speed is 8m/s.Cold wind conveying accelerates the cooling rate of banana diaphragm, reduces the moisture of banana diaphragm, and make banana diaphragm brittle, be conducive to further pulverizing, the dissolved property of obtained banaina is good, does not reunite after water-soluble.
According to the present invention, preferably, the drum rotation speed of described step 4) intermediate roll drying machine is 3r/min.
According to the present invention, preferably, in step 5) banana diaphragm grinding particle size preferably at 70 ~ 80 orders.
The application of above-mentioned obtained instant pure banana powder, reconstitutes into pasty state with water and directly takes, or joins in milk powder and make banana milk powder.The mass ratio of milk powder and banana is 1:1, and the banana milk powder be configured to not only makes milk powder nutrition more comprehensively, and user can also be avoided to occur the shortcoming of being hard and dry.
Above-mentioned obtained instant pure banana powder as the batching of numerous food or auxiliary material, can also have a extensive future.
The above equipment of the present invention is this area conventional equipment.
Advantage of the present invention is as follows:
1, the preparation method of instant pure banana powder of the present invention, in preparation process, banana diaphragm is delivered in pulverizer through cold wind and pulverizes, cold wind conveying air velocity is 6m/s ~ 8m/s, cold wind temperature is 8 ~ 10 DEG C, banana diaphragm is delivered to pulverizer speed at the uniform velocity through cold wind, accelerate the cooling rate of banana diaphragm, reduce the moisture of banana diaphragm, be conducive to further pulverizing, pulverize obtained banaina grain thickness even, obtained banana part is dissolved rapidly, without precipitation, without caking, without assembling, it is good to rush capacitive when reconstituting.
2, the preparation method of instant pure banana powder of the present invention, directly roller drying process after the making beating of banana section being sieved, did not need colloid mill or second homogenate process, and simplified production technology, reduce the wastage.The nutritional labelings such as the original carbohydrate of banana, protein, fat, amino acid, vitamin and mineral matter can be kept preferably,
3, the preparation method of instant pure banana powder of the present invention banana pulp is carried out roller drying process in conjunction with cold wind conveying then pulverize, compared with the preparation method of the banaina of prior art, additive-free, without auxiliary material, do not add any filler, ensure that purity and the nutritional labeling of banaina.Instant pure banana powder state after dissolving is homogeneous, has strong banana flavor, smooth in taste, pure taste, and cold wind conveying makes the banaina water content obtained lower than 5.5wt%, extends the shelf-life.
4, the preparation method of instant pure banana powder of the present invention, banana diaphragm is delivered in pulverizer through cold wind and pulverizes, and order dissolved property in grinding particle size to 60 ~ 80 is best, without caking, without assembling, gained banaina granularity is moderate, significantly improves the dissolved property of banaina.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described, but be not limited thereto.
Following examples banana raw material used originates from Dengmai County, Hainan Province; Roller drier purchased from dutch royal Ji Meifu up to company (GMF Gouda).
Banaina prepared by the embodiment of the present invention, for making the batching of banana milk powder or numerous food.
Embodiment 1
A preparation method for instant pure banana powder, comprises step as follows:
1, take medium well banana 10kg, peeling, is cut into 1.5cm segment;
2, banana section step 1 cut is put into colour protecting liquid immediately and is soaked 8min, described colour protecting liquid adopts citric acid, vitamin C and sodium chloride solution by citric acid: vitamin C: the volume ratio of sodium chloride solution is: 1.5:1:1 proportions forms, the mass percentage concentration of described citric acid, vitamin C, sodium chloride solution is respectively 0.03%, 0.2%, 0.05%.
3, after step 2 being protected look, banana section puts into the pure water 10kg that stainless cylinder of steel adds 80 DEG C, break process 8min, crosses 40 sieves and removes the black seed of banana and crude fibre, make banana pulp;
4, be conveyed in roller drier by banana pulp obtained for step 3 and carry out drying and process, the drum surface temperature of roller drier is 130 DEG C, and drum rotation speed controls at 3r/min, and drying time, 10s, obtained the banana diaphragm of water content 7.8wt%;
5, banana diaphragm step 4 obtained is delivered in pulverizer through cold wind and pulverizes; The temperature of cold wind is 8 DEG C, and cold wind wind speed is 6m/s, and the banana diaphragm through cold wind conveying is crushed to granularity 60 order, and obtain instant pure banana powder, instant pure banana powder quality is 1.1kg, water content 5.3wt%.
Two, Quality Detection
Through detecting, the moisture of the instant pure banana powder of the inventive method gained is 5.3wt%, and fat content is 1.3wt%, and total sugar content is 61.1wt%, protein content 3.3wt%, content of starch 16.8wt%, and above-mentioned percentage all refers to percentage by weight.
Above-mentioned moisture method of testing is according to GB/T5009.3;
Above-mentioned fat content method of testing is according to GB/T5009.6;
Above-mentioned protein content method of testing is according to GB/T5009.5;
Above-mentioned total sugar content method of testing is according to GB/T15038
Above-mentioned content of starch method of testing is according to GB/T5009.9
In order to verify the instant effect of the instant pure banana powder of the inventive method gained, the banaina that random selecting market is sold, carry out solute effect contrast test at identical conditions, commercially available banaina packed with the 5g randomly drawed for the banaina of this explained hereafter of 5g is carried out solubility experiment, two kinds of products are dissolved in 100ml respectively, observe in the hot water that temperature is 80 DEG C, through contrast, find that instant pure banana powder solute effect of the present invention is good, dissolve rapidly, under the same conditions two kinds of solution are filtered with 100 order stainless steel sifts, oven dry to constant weight weighs, commercially available banaina slightly solubility material reaches 8.7%, and this technique banaina slightly solubility material only has 3.1%, instant pure banana powder state after dissolving is homogeneous, there is strong banana flavor, smooth in taste, pure taste.
Embodiment 2:
A preparation method for instant pure banana powder, comprises step as follows:
1, take medium well banana 40kg, peeling, is cut into 1cm segment;
2, banana section step 1 cut is put into colour protecting liquid immediately and is soaked 10min, described colour protecting liquid adopts citric acid, vitamin C and sodium chloride solution, by citric acid: vitamin C: the volume ratio of sodium chloride solution is: 1.5:1:1 proportions forms, the mass percentage concentration of described citric acid, vitamin C, sodium chloride solution is respectively 0.03%, 0.2%, 0.05%.
3, after step 2 being protected look, banana section puts into the pure water 80kg that stainless cylinder of steel adds 85 DEG C, break process 5min, crosses 50 sieves and removes the black seed of banana and crude fibre, make banana pulp;
4, be conveyed in roller drier by banana pulp obtained for step 3 and carry out drying and process, the drum surface temperature of roller drier is 135 DEG C, and drum rotation speed controls at 3r/min, and drying time, 15s, obtained the banana diaphragm of water content 7.5wt%;
5, banana diaphragm step 4 obtained is delivered in pulverizer through cold wind and pulverizes; The temperature of cold wind is 8 DEG C, and cold wind wind speed is 7m/s.Banana diaphragm through cold wind conveying is crushed to granularity 70 order, and obtain instant pure banana powder, instant pure banana powder quality is 5.4kg, water content 5.5wt%.
Embodiment 3:
With the preparation method of the instant pure banana powder described in embodiment 1, difference is,
Banana diaphragm obtained for step 4 is delivered in pulverizer through cold wind and pulverizes; The temperature of cold wind is 10 DEG C, and cold wind wind speed is 8m/s.Banana diaphragm through cold wind conveying is crushed to granularity 80 order, obtains instant pure banana powder, the water content 5.3wt% of instant pure banana powder.
Three, comparative example:
1, manufacture banaina is carried out under the same conditions, the banana diaphragm of embodiment of the present invention method is delivered in pulverizer through cold wind to be pulverized, pulverize obtained banaina, be delivered in pulverizer without cold wind with banana diaphragm simultaneously and pulverize, pulverizing obtained banaina is that reference examples carries out contrasting (the same embodiment of other conditions of reference examples), and the water content of banaina, the comparing result of dissolved property are as following table 1.
Table 1
2, the present invention prepares in banaina process, banana diaphragm is delivered in pulverizer through cold wind and pulverizes, be crushed to 40 orders, 50 orders, 60 orders, 70 orders, 80 orders, 90 orders, 100 orders respectively, obtained instant pure banana powder, prepare banaina to be crushed under obtained banaina is placed in identical condition by granularity 60 ~ 80 order and to carry out solute effect contrast test, the comparing result of the solute effect obtained is as following table 2:
Table 2
| Numbering | Solute effect |
| Be crushed to 30 orders, obtained banaina | Not soluble, have particle |
| Be crushed to 40 orders, obtained banaina | Not soluble, have a little particle |
| Be crushed to 50 orders, obtained banaina | Dissolve slowly, have a little precipitation |
| Be crushed to 60 orders, obtained banaina | Dissolving is lumpd, without assembling rapidly, without precipitation, nothing |
| Be crushed to 70 orders, obtained banaina | Dissolving is lumpd, without assembling rapidly, without precipitation, nothing |
| Be crushed to 80 orders, obtained banaina | Dissolving is lumpd, without assembling rapidly, without precipitation, nothing |
| Be crushed to 90 orders, obtained banaina | There is part to lump, assemble, dissolve slowly |
| Be crushed to 100 orders, obtained banaina | Major part caking, gathering, dissolve slowly |
Can be found out by upper table 2, the present invention prepares in banaina process, and banana diaphragm is delivered in pulverizer through cold wind and pulverizes, and order dissolved property in grinding particle size to 60 ~ 80 is best, without caking, without assembling; Grinding particle size meticulous (﹥ 80 order) product easily lumps when reconstituting, and grinding particle size excessively thick (﹤ 40 order) product is not soluble.
Experimental example:
3, by the preparation method of the instant pure banana powder described in embodiment 1, condition is with embodiment 1, and its difference is:
Experimental example 1: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 4m/s;
Experimental example 2: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 8m/s;
Experimental example 3: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 10m/s;
Experimental example 4: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 12m/s;
Experimental example 5: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 14m/s;
Experimental example 6: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 16m/s;
Above-mentioned experimental example 1-experimental example 6 and embodiment 1 are processed rear obtained banana diaphragm and be delivered to the situation of pulverizer and crushing effect makes a contrast test table, comparing result is as following table 3
Table 3
Can be found out by upper table 3 data and Contrast on effect, the present invention prepares in banaina process, banana diaphragm is delivered in pulverizer through cold wind and pulverizes, cold wind conveying air velocity is best with 6m/s ~ 8m/s effect, banana diaphragm is delivered to pulverizer speed at the uniform velocity, conveying just in time, pulverizes obtained banaina grain thickness even.
4, can be found out by upper table 3 data and Contrast on effect, when cold wind conveying air velocity is 8m/s, effect is best, carries out manufacture banaina under the same conditions, and cold wind conveying air velocity is 8m/s, and other conditions are with embodiment 1, and difference is:
Experimental example 8: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 8m/s; Cold wind temperature 6 DEG C
Experimental example 9: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 8m/s; Cold wind temperature 8 DEG C
Experimental example 10: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 8m/s; Cold wind temperature 10 DEG C
Experimental example 11: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 8m/s; Cold wind temperature 12 DEG C
Experimental example 12: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 8m/s; Cold wind temperature 14 DEG C
Experimental example 13: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 8m/s; Cold wind temperature 16 DEG C
Experimental example 14: banana diaphragm is delivered in pulverizer through cold wind and pulverizes; Cold wind wind speed is 8m/s; Cold wind temperature 18 DEG C
The water content of banaina obtained through experimental example 8 ~ experimental example 14, the experimental result of dissolved property are made a contrast test table, and comparing result is as following table 4.
Table 4
| Experimental example | Cold wind temperature | Water content | Dissolved property |
| Experimental example 8 | 6℃ | 5.4wt% | Dissolving is lumpd, without assembling rapidly, without precipitation, nothing |
| Experimental example 9 | 8℃ | 5.5wt% | Dissolving is lumpd, without assembling rapidly, without precipitation, nothing |
| Experimental example 10 | 10℃ | 5.3wt% | Dissolving is lumpd, without assembling rapidly, without precipitation, nothing |
| Experimental example 12 | 12℃ | 5.5wt% | Dissolving is lumpd, without assembling rapidly, without precipitation, nothing |
| Experimental example 14 | 14℃ | 5.6wt% | Dissolve slowly, have a little precipitation |
| Experimental example 16 | 16℃ | 5.7wt% | Dissolve slowly, have a little precipitation |
| Experimental example 18 | 18℃ | 5.9wt% | There is part to lump, assemble, dissolve slowly |
Conclusion: by the data in table 3 associative list 4 to finding out, the present invention prepares in banaina process, banana diaphragm is delivered in pulverizer through cold wind and pulverizes, cold wind conveying air velocity is 6m/s ~ 8m/s, cold wind temperature is that 8 ~ 10 DEG C of effects are best, banana diaphragm is delivered to pulverizer speed at the uniform velocity, conveying capacity just in time, pulverize obtained banaina grain thickness even, obtained banana part is dissolved rapidly, without precipitation, without caking when reconstituting, without assembling, rush capacitive good, the preparation method of instant pure banana powder provided by the invention, compared with the preparation method of the banaina of prior art, additive-free, without auxiliary material, do not add any filler, ensure that purity and the nutritional labeling of banaina.Instant pure banana powder state after dissolving is homogeneous, has strong banana flavor, smooth in taste, pure taste, and cold wind conveying makes the banaina water content obtained lower than 5.5wt%, extends the shelf-life.
Claims (1)
1. a preparation method for instant pure banana powder, comprises step as follows:
1) take medium well banana 10kg, peeling, is cut into 1.5cm segment;
2) banana section step 1) cut is put into colour protecting liquid immediately and is soaked 8min, described colour protecting liquid adopts citric acid, vitamin C and sodium chloride solution by citric acid: vitamin C: the volume ratio of sodium chloride solution is: 1.5:1:1 proportions forms, the mass percentage concentration of described citric acid, vitamin C, sodium chloride solution is respectively 0.03%, 0.2%, 0.05%.
3) by step 2) protect look after banana section put into the pure water 10kg that stainless cylinder of steel adds 80 DEG C, break process 8min, cross 40 mesh sieves and remove the black seed of banana and crude fibres, make banana pulp;
4) be conveyed in roller drier by banana pulp obtained for step 3) and carry out drying and process, the drum surface temperature of roller drier is 130 DEG C, and drum rotation speed controls at 3r/min, and drying time, 10s, obtained the banana diaphragm of water content 7.8wt%;
5) banana diaphragm step 4) obtained is delivered in pulverizer through cold wind and pulverizes; The temperature of cold wind is 8 DEG C, and cold wind wind speed is 6m/s, and the banana diaphragm through cold wind conveying is crushed to granularity 60 order, and obtain instant pure banana powder, instant pure banana powder quality is 1.1kg, water content 5.3wt%.
2
.a preparation method for instant pure banana powder, comprises step as follows:
1) take medium well banana 40kg, peeling, is cut into 1cm segment;
2) by step 1) the banana section that cuts puts into colour protecting liquid immediately and soaks 10min, described colour protecting liquid adopts citric acid, vitamin C and sodium chloride solution, by citric acid: vitamin C: the volume ratio of sodium chloride solution is: 1.5:1:1 proportions forms, the mass percentage concentration of described citric acid, vitamin C, sodium chloride solution is respectively 0.03%, 0.2%, 0.05%.
3) by step 2) protect look after banana section put into the pure water 80kg that stainless cylinder of steel adds 85 DEG C, break process 5min, cross 50 mesh sieves and remove the black seed of banana and crude fibres, make banana pulp;
4) by step 3) obtained banana pulp is conveyed in roller drier and carries out drying and process, and the drum surface temperature of roller drier is 135 DEG C, and drum rotation speed controls at 3r/min, and drying time, 15s, obtained the banana diaphragm of water content 7.5wt%;
5) by step 4) obtained banana diaphragm is delivered in pulverizer through cold wind and pulverizes; The temperature of cold wind is 8 DEG C, and cold wind wind speed is 7m/s.Banana diaphragm through cold wind conveying is crushed to granularity 70 order, and obtain instant pure banana powder, instant pure banana powder quality is 5.4kg, water content 5.5wt%.
3
.a preparation method for instant pure banana powder, comprises step as follows:
1) take medium well banana 40kg, peeling, is cut into 1cm segment;
2) banana section step 1) cut is put into colour protecting liquid immediately and is soaked 10min, described colour protecting liquid adopts citric acid, vitamin C and sodium chloride solution, by citric acid: vitamin C: the volume ratio of sodium chloride solution is: 1.5:1:1 proportions forms, the mass percentage concentration of described citric acid, vitamin C, sodium chloride solution is respectively 0.03%, 0.2%, 0.05%.
3) by step 2) protect look after banana section put into the pure water 80kg that stainless cylinder of steel adds 85 DEG C, break process 5min, cross 50 mesh sieves and remove the black seed of banana and crude fibres, make banana pulp;
4) be conveyed in roller drier by banana pulp obtained for step 3) and carry out drying and process, the drum surface temperature of roller drier is 135 DEG C, and drum rotation speed controls at 3r/min, and drying time, 15s, obtained the banana diaphragm of water content 7.5wt%;
5) banana diaphragm step 4) obtained is delivered in pulverizer through cold wind and pulverizes; The temperature of cold wind is 10 DEG C, and cold wind wind speed is 8m/s.Banana diaphragm through cold wind conveying is crushed to granularity 80 order, obtains instant pure banana powder, the water content 5.3wt% of instant pure banana powder.
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| CN104055045A (en) * | 2014-06-07 | 2014-09-24 | 陶峰 | Preparation method of banana health care powder |
| CN105614302A (en) * | 2014-10-29 | 2016-06-01 | 徐云升 | Preparation method of banana powder |
| CN108967793A (en) * | 2018-06-28 | 2018-12-11 | 广西驰胜农业科技有限公司 | A kind of preparation method of banaina |
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| FR2797383A1 (en) * | 1999-08-09 | 2001-02-16 | Felix Combet | DRYING THE GREEN BANANA |
| ES2187291B1 (en) * | 2001-10-22 | 2004-08-16 | Jose Hernandez Rodriguez | PROCEDURE FOR THE ELABORATION OF BANANA FLOUR AS A FOOD PRODUCT. |
| CN101181040A (en) * | 2007-12-07 | 2008-05-21 | 华南理工大学 | Method for preparing bananas powder with good recovery properties of water and non-agglomeration |
| CN101703195A (en) * | 2009-11-13 | 2010-05-12 | 江南大学 | Method for synchronously preparing two banana powders by utilizing bananas |
| CN102669783A (en) * | 2012-05-24 | 2012-09-19 | 中华全国供销合作总社济南果品研究院 | Method for preparing banana flour in continuous vacuum dewatering manner |
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