A kind of preparation method of instant pure banaina
Technical field
The present invention relates to a kind of preparation method of instant pure banaina, belong to food processing technology field.
Background technology
Banana belongs to Musaceae and belongs to, be one of the torrid zone and subtropical zone " four big fruits ", it also is the tropical fruit (tree) of the most extensively cultivating in the world, has nutritious, the soft China Resources of meat, it is sweet and tasty mouthful to distinguish the flavor of, and to heat-clearing, detoxify, promote the production of body fluid, ease constipation, defaecation, diuresis, step-down, antiabortive etc. have a significant physiological function.
Banana is transition type fruit, and it is rotten to go bad under the normal temperature after plucking, and is difficult to long preservation, therefore all can cause very big economic loss every year.Being processed into banaina is important measures that solve banana storing and reprocessing.Banaina belongs to new product at home, has to be easy to preserve, transport, use characteristics easily, and the laudatory title of " plant milk powder " is arranged always, and the furnishing pasty state of can washing by water is directly taken.Also can add and make banana milk powder in the milk powder.Banaina can also be as the batching of food such as ice cream, beverage, cake, soymilk, and potential market is very wide.
The preparation technology of banaina can be divided into two big class, i.e. cool-drying technology and heated drying technologies at present.Cool-drying technology mainly is vacuum freeze-drying technique, be to utilize ice crystal distillation principle, earlier material is frozen into below the eutectic point, make the moisture in the material become solid-state ice, the heat that distilling in vacuum then needs makes the moisture in the material be converted into steam by ice crystal, is removed by the water vapour coagulator condensation in the vacuum system, thereby acquisition dried product, this method can keep the original nutritional labeling of banana to greatest extent, but this method energy consumption is big, the cost height; Heated drying technology mainly contains drying process with atomizing, this 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, when influencing the banaina aesthetic quality, because a large amount of interpolations of dispersant, anticaking agent or other auxiliary materials, certainly will cause the banaina nutritive value to descend significantly, can not make pure banaina.And the banaina granularity is meticulous after having spray-drying, towards problem such as dissolubility is relatively poor.
Chinese patent CN1432293 (application number 02100338.6) discloses a kind of technical matters of producing pure banaina with spray drying process, banana pulp through the heat kill enzyme, protect look, pectin processing, high speed shear emulsification, second homogenate, carry out high-pressure spray-drying, dry finished in proper order by high-pressure fog, fixed fluidized bed, vibrated fluidized bed.150~190 ℃ of initial EATs, 70~90 ℃ of leaving air temps, fixed fluidized bed and vibrated fluidized bed wind-warm syndrome is 70~90 ℃.In this technology, except color stabilizer, also add dispersant and anticaking agent in the banana pulp, and the banaina fine size of spraying and making, water-soluble back is caking, reunion easily, and is poor towards dissolubility.
Chinese patent CN102793120A(application number 201210262389.8) a kind of preparation method of complete banana power is disclosed, be through blue or green banana check, preliminary treatment, protect look, pulverize making beating, enzymolysis, centrifugation, drying, screening, check, the packing warehouse-in, the complete banana power that obtains is rich in resistant starch, matter structure exquisiteness, color is pure, and the nutrition and health care function is outstanding.It is hard-packed crystalline particle to faint yellow that product appearance is milk white, delicate mouthfeel, and no astringent taste, nonhygroscopic, can well keep original nutritional labeling.
The said goods is because because production technology, and the banaina water content that makes is higher, towards the dissolubility difference and be difficult for storage.
Summary of the invention
At the deficiencies in the prior art, the invention provides a kind of preparation method of instant pure banaina.
Technical scheme of the present invention is as follows:
A kind of preparation method of instant pure banaina comprises that step is as follows:
1) with after the banana peeling, is cut into 1~1.5cm segment;
2) the banana section that cuts is put into colour protecting liquid immediately and is soaked 5~10min,
3) with step 2) banana section after handling puts into 80~90 ℃ pure water and 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 makes of step 3) is conveyed into and carries out drying in the roller drier and handle, the cylinder surface temperature of described roller drier is 130~135 ℃, the rotating speed of cylinder is 2~4r/min, and drying time, 10~20S made the banana diaphragm of water content 7wt%~10wt%;
5) the banana diaphragm that step 4) is made is delivered in the pulverizer through cold wind to be pulverized; The temperature of described cold wind is 8~10 ℃, and the cold wind wind speed is 6~8m/s, is crushed to granularity 60~80 orders, makes instant pure banaina.
Banana raw material described in the above-mentioned steps (1) serves as preferred with eight to ninety percent ripe bananas fresh, no insect pest, and described banana variety is Dengmai County, Hainan Province banana.
According to the present invention, preferably, described step 2) colour protecting liquid described in is to 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%.
Further preferred, described citric acid: vitamin C: the volume ratio of sodium chloride solution is: 1.5:1:1.
According to the present invention, preferred, the weight ratio of banana Duan Yushui is 1:(1.5~2 in the described step 3)), further preferred: the weight ratio of banana Duan Yushui is 1:1.5.
According to the present invention, preferred, after the banana section break process, cross 40~50 mesh sieves and remove the black seed of banana and crude fibre in the step 4).The black seed of banana and coarse-fibred existence have reduced the stability of banaina dissolving, make banaina precipitation in course of dissolution, very easily occur, simultaneously, because there are the palatability that greatly reduces the banaina mouthfeel in the black seed of banana and crude fibre, after experiment showed, that removing banana deceives seed and crude fibre, the banaina that makes is easy to dissolving, good towards dissolubility, dissolving back prevented from caking, formation precipitation.
The present invention is preferred, and the banana diaphragm that step 4) is made is delivered in the pulverizer through cold wind to be pulverized; The temperature of cold wind is 10 ℃, and the cold wind wind speed is 8m/s.Cold wind is carried the cooling rate accelerated the banana diaphragm, has reduced the moisture of banana diaphragm, makes the embrittlement of banana diaphragm, is conducive to further pulverizing, and the banaina that makes is good towards dissolubility, does not reunite after water-soluble.
According to the present invention, preferred, the drum rotation speed of described step 4) intermediate roll drying machine is 3r/min.
According to the present invention, preferred, banana diaphragm grinding particle size is preferably at 70~80 orders in the step 5).
The application of the above-mentioned instant pure banaina that makes, water reconstitutes into pasty state and directly takes, or joins and make banana milk powder in the milk powder.The mass ratio of milk powder and banana is 1:1, and the banana milk powder that is configured to not only makes milk powder nutrition more comprehensively, the shortcoming that can also avoid the user to occur being hard and dry.
The above-mentioned instant pure banaina that makes can also have a extensive future as batching or the auxiliary material of numerous food.
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 banaina of the present invention, the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes in the preparation process, the cold wind conveying air velocity is 6m/s~8m/s, the cold wind temperature is 8~10 ℃, the banana diaphragm is delivered to pulverizer speed at the uniform velocity through cold wind, accelerate the cooling rate of banana diaphragm, reduced the moisture of banana diaphragm, be conducive to further pulverizing, the banaina grain thickness that pulverizing makes is even, rapid, the nothing precipitation of the banana part dissolving that makes does not have caking, does not have and assemble when reconstituting, good towards capacitive.
2, the preparation method of instant pure banaina of the present invention, with banana section making beating sieve the back directly roller drying handle, do not need colloid mill or second homogenate to handle, simplified production technology, reduce the wastage.Can keep nutritional labelings such as the original carbohydrate of banana, protein, fat, amino acid, vitamin and mineral matter preferably,
3, the preparation method of instant pure banaina of the present invention carries out roller drying with banana pulp and handles to carry in conjunction with cold wind and pulverize then, compare with the preparation method of the banaina of prior art, additive-free, no auxiliary material does not add any filler, has guaranteed purity and the nutritional labeling of banaina.Instant pure banaina state homogeneous after the dissolving has strong banana flavor, and mouthfeel is smooth, and pure taste, cold wind are carried and made the banaina water content that makes be lower than 5.5wt%, have prolonged the shelf-life.
4, the preparation method of instant pure banaina of the present invention, the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes, and grinding particle size to 60~80 orders are best towards dissolubility, does not have caking, does not have and assemble, gained banaina granularity is moderate, has significantly improved the dissolubility that dashes of banaina.
The specific embodiment
The present invention will be further described below in conjunction with embodiment, but be not limited thereto.
The used banana raw material of following examples originates from Dengmai County, Hainan Province; Roller drier available from dutch royal Ji Meifu up to company (GMF Gouda).
The banaina of embodiment of the invention preparation is for the batching of making banana milk powder or numerous food.
Embodiment 1
A kind of preparation method of instant pure banaina comprises that step is as follows:
1, take by weighing medium well banana 10kg, the 1.5cm segment is cut in peeling;
2, the banana section that step 1 is 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 in citric acid: vitamin C: the volume ratio of sodium chloride solution is: the 1.5:1:1 ratio is formulated, the mass percentage concentration of described citric acid, vitamin C, sodium chloride solution is respectively 0.03%, 0.2%, 0.05%.
3, step 2 is protected behind the look banana section and put into the pure water 10kg that stainless cylinder of steel adds 80 ℃, break process 8min crosses 40 sieves and removes the black seed of bananas and crude fibres, makes banana pulp;
4, the banana pulp that step 3 is made is conveyed into and carries out the drying processing in the roller drier, and the cylinder surface temperature of roller drier is 130 ℃, and drum rotation speed is controlled at 3r/min, and drying time, 10s made the banana diaphragm that obtains water content 7.8wt%;
5, the banana diaphragm that step 4 is made is delivered in the pulverizer through cold wind to be pulverized; The temperature of cold wind is 8 ℃, and the cold wind wind speed is 6m/s, and the banana diaphragm of carrying through cold wind is crushed to granularity 60 orders, obtains instant pure banaina, and instant pure banaina quality is 1.1kg, water content 5.3wt%.
Two, Quality Detection
Through detecting, the moisture of the instant pure banaina 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%, and content of starch 16.8wt%, 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
Instant effect for the instant pure banaina of verifying the inventive method gained, the banaina of selling on the picked at random market, under identical condition, carry out the solute effect contrast test, the commercially available banaina that the banaina of this explained hereafter of 5g and the 5g that randomly draws is packed carries out solubility experiment, two kinds of products are dissolved in 100ml respectively, observe in the hot water that temperature is 80 ℃, through contrast, find that instant pure banaina solute effect of the present invention is good, dissolving rapidly, under the same conditions two kinds of solution are filtered with 100 order stainless steel sifts, dry to the constant weight weighing, commercially available banaina slightly solubility material reaches 8.7%, and this technology banaina slightly solubility material has only 3.1%, and the instant pure banaina state homogeneous after the dissolving has strong banana flavor, mouthfeel is smooth, pure taste.
Embodiment 2:
A kind of preparation method of instant pure banaina comprises that step is as follows:
1, take by weighing medium well banana 40kg, the 1cm segment is cut in peeling;
2, the banana section that step 1 is 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, in citric acid: vitamin C: the volume ratio of sodium chloride solution is: the 1.5:1:1 ratio is formulated, the mass percentage concentration of described citric acid, vitamin C, sodium chloride solution is respectively 0.03%, 0.2%, 0.05%.
3, step 2 is protected behind the look banana section and put into the pure water 80kg that stainless cylinder of steel adds 85 ℃, break process 5min crosses 50 sieves and removes the black seed of bananas and crude fibres, makes banana pulp;
4, the banana pulp that step 3 is made is conveyed into and carries out the drying processing in the roller drier, and the cylinder surface temperature of roller drier is 135 ℃, and drum rotation speed is controlled at 3r/min, and drying time, 15s made the banana diaphragm that obtains water content 7.5wt%;
5, the banana diaphragm that step 4 is made is delivered in the pulverizer through cold wind to be pulverized; The temperature of cold wind is 8 ℃, and the cold wind wind speed is 7m/s.The banana diaphragm of carrying through cold wind is crushed to granularity 70 orders, obtains instant pure banaina, and instant pure banaina quality is 5.4kg, water content 5.5wt%.
Embodiment 3:
With the preparation method of embodiment 1 described instant pure banaina, difference is,
The banana diaphragm that step 4 is made is delivered in the pulverizer through cold wind to be pulverized; The temperature of cold wind is 10 ℃, and the cold wind wind speed is 8m/s.The banana diaphragm of carrying through cold wind is crushed to granularity 80 orders, obtains instant pure banaina, the water content 5.3wt% of instant pure banaina.
Three, Comparative Examples:
1, produces the preparation banaina under the same conditions, the banana diaphragm of embodiment of the invention method is delivered in the pulverizer through cold wind to be pulverized, the banaina that pulverizing makes, be delivered in the pulverizer without cold wind with the banana diaphragm simultaneously and pulverize, the banaina that pulverizing makes is that reference examples compares (the same embodiment of other conditions of reference examples), the water content of banaina, towards comparing result such as the following table 1 of dissolubility.
Table 1
2, the present invention prepares in the banaina process, the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes, be crushed to 40 orders, 50 orders, 60 orders, 70 orders, 80 orders, 90 orders, 100 orders respectively, make instant pure banaina, the preparation banaina is crushed to granularity 60~80 orders and the banaina that makes is placed carries out the solute effect contrast test under the identical condition, the comparing result of the solute effect that obtains such as following table 2:
Table 2
Numbering |
Solute effect |
Be crushed to 30 orders, the banaina that makes |
Be difficult for dissolving, particle is arranged |
Be crushed to 40 orders, the banaina that makes |
Be difficult for dissolving, a little particle is arranged |
Be crushed to 50 orders, the banaina that makes |
Dissolving slowly, a little precipitation arranged |
Be crushed to 60 orders, the banaina that makes |
Dissolving rapidly, do not have precipitation, do not have caking, do not have and assemble |
Be crushed to 70 orders, the banaina that makes |
Dissolving rapidly, do not have precipitation, do not have caking, do not have and assemble |
Be crushed to 80 orders, the banaina that makes |
Dissolving rapidly, do not have precipitation, do not have caking, do not have and assemble |
Be crushed to 90 orders, the banaina that makes |
The part caking is arranged, assemble, dissolving slowly |
Be crushed to 100 orders, the banaina that makes |
Most of caking, gathering, dissolving are slowly |
By last table 2 as can be seen, the present invention prepares in the banaina process, and the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes, and grinding particle size to 60~80 orders are best towards dissolubility, does not have caking, does not have and assemble; Grinding particle size meticulous (﹥ 80 orders) easily lumps when product reconstitutes, and grinding particle size thick excessively (﹤ 40 orders) product is difficult for dissolving.
Experimental example:
3, press the preparation method of embodiment 1 described instant pure banaina, condition is with embodiment 1, and its difference is:
Experimental example 1: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 4m/s;
Experimental example 2: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 8m/s;
Experimental example 3: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 10m/s;
Experimental example 4: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 12m/s;
Experimental example 5: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 14m/s;
Experimental example 6: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 16m/s;
With above-mentioned experimental example 1-experimental example 6, and the banana diaphragm that makes after handling of embodiment 1 situation and the crushing effect that are delivered to pulverizer make a contrast test table, comparing result such as following table 3
Table 3
Contrast as can be seen by last table 3 data and effect, the present invention prepares in the banaina process, the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes, the cold wind conveying air velocity is best with 6m/s~8m/s effect, the banana diaphragm is delivered to pulverizer speed at the uniform velocity, carry just in time, it is even to pulverize the banaina grain thickness that makes.
4, contrast as can be seen by last table 3 data and effect, when the cold wind conveying air velocity was 8m/s, effect was best, produced the preparation banaina under the same conditions, and the cold wind conveying air velocity is 8m/s, and other conditions are with embodiment 1, and difference is:
Experimental example 8: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 8m/s; 6 ℃ of cold wind temperature
Experimental example 9: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 8m/s; 8 ℃ of cold wind temperature
Experimental example 10: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 8m/s; 10 ℃ of cold wind temperature
Experimental example 11: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 8m/s; 12 ℃ of cold wind temperature
Experimental example 12: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 8m/s; 14 ℃ of cold wind temperature
Experimental example 13: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 8m/s; 16 ℃ of cold wind temperature
Experimental example 14: the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes; The cold wind wind speed is 8m/s; 18 ℃ of cold wind temperature
The water content of the banaina that will make through experimental example 8~experimental example 14, make a contrast test table, comparing result such as following table 4 towards the experimental result of dissolubility.
Table 4
Experimental example |
The cold wind temperature |
Water content |
Towards dissolubility |
Experimental example 8 |
6℃ |
5.4wt% |
Dissolving rapidly, do not have precipitation, do not have caking, do not have and assemble |
Experimental example 9 |
8℃ |
5.5wt% |
Dissolving rapidly, do not have precipitation, do not have caking, do not have and assemble |
Experimental example 10 |
10℃ |
5.3wt% |
Dissolving rapidly, do not have precipitation, do not have caking, do not have and assemble |
Experimental example 12 |
12℃ |
5.5wt% |
Dissolving rapidly, do not have precipitation, do not have caking, do not have and assemble |
Experimental example 14 |
14℃ |
5.6wt% |
Dissolving slowly, a little precipitation arranged |
Experimental example 16 |
16℃ |
5.7wt% |
Dissolving slowly, a little precipitation arranged |
Experimental example 18 |
18℃ |
5.9wt% |
The part caking is arranged, assemble, dissolving slowly |
Conclusion: by the data in table 3 associative list 4 to as can be seen, the present invention prepares in the banaina process, the banana diaphragm is delivered in the pulverizer through cold wind and pulverizes, the cold wind conveying air velocity is 6m/s~8m/s, the cold wind temperature is that 8~10 ℃ of effects are best, the banana diaphragm is delivered to pulverizer speed at the uniform velocity, conveying capacity just in time, the banaina grain thickness that pulverizing makes is even, the banana part dissolving that makes rapidly, there is not precipitation, there is not caking when reconstituting, do not have and assemble, good towards capacitive, the preparation method of instant pure banaina provided by the invention, compare with the preparation method of the banaina of prior art, additive-free, no auxiliary material does not add any filler, has guaranteed purity and the nutritional labeling of banaina.Instant pure banaina state homogeneous after the dissolving has strong banana flavor, and mouthfeel is smooth, and pure taste, cold wind are carried and made the banaina water content that makes be lower than 5.5wt%, have prolonged the shelf-life.