CN109892550A - A kind of dry and wet combined type preparation method of instant corn nutrition snowflake piece - Google Patents
A kind of dry and wet combined type preparation method of instant corn nutrition snowflake piece Download PDFInfo
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- CN109892550A CN109892550A CN201910287455.9A CN201910287455A CN109892550A CN 109892550 A CN109892550 A CN 109892550A CN 201910287455 A CN201910287455 A CN 201910287455A CN 109892550 A CN109892550 A CN 109892550A
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Abstract
The dry and wet combined type preparation method of instant corn nutrition snowflake piece of the present invention, processing step is as follows: (1) dry hominy grits being prepared into expanded corn powder using dry-way extrusion, (2) the dry hominy grits of 50~90 parts by weight is impregnated, (3) defibrination together with the hominy grits after impregnating 10~50 parts by weight of expanded corn powder of step (1) preparation with step (2), (4) corn syrup that roller pre-gelatinized and predrying defibrination obtain forms cornmeal mush, (5) cornmeal mush roller is dried to obtain the cornflakes that moisture content is not higher than 8%, (6) the broken sieving of cornflakes, (7) microwave disinfection of corn snowflake piece, (8) inner packing, metal detection and outer packing.The above method can not only make corn snowflake piece improve nutritive value, and roasting fragrance and color with dry method product, brew is good, and can reduce energy consumption.
Description
Technical field
The invention belongs to food processing field, in particular to a kind of preparation method of instant corn nutrition snowflake piece.
Background technique
Corn has nutritive value abundant and health-care effect.In addition to containing carbohydrate, protein, rouge in corn
Other than the nutriments such as fat, carrotene, also contain seven kinds " anatrophic ", i.e. calcium, glutathione, vitamin, magnesium, selenium, dimension life
Plain E and fatty acid.Wherein every 100 grams of corns can refine nearly 300 milligrams of calcium, and calcium abundant can achieve the function of blood pressure lowering
Effect.Glutathione contained in corn is anticancer factor, it can be allowed to lose carcinogenicity in conjunction with some carcinogens；Paddy Guang
Sweet peptide is also a kind of longevity factor simultaneously, it generates glutathione oxidase in the presence of selenium, has and renews one's youth, delays
The function of aging.Natural VE, which has, to be promoted cell division, anti-aging, reduces serum cholesterol, prevent cutaneous lesions, subtract
The function of light artery sclerosis and brain function decline.
Corn snowflake piece is a kind of instant food, the favor full of nutrition with its, convenient by the majority of consumers.Mesh
It is preceding it is commercially available mostly produced by the corn snowflake piece of raw material of hominy grits with dry method-extrusion method, i.e., hominy grits smash after
Modulated process adds water, and material carries out extrusion under 160~200 DEG C, the high-temperature and high-pressure conditions of 0.7~1.0MPa, crushes
Sieving is made.Although the corn snowflake piece that such method obtains has roasting fragrance, color good, but there are the following problems: 1, making to resist
Property starch content decline, and the high temperature and pressure in extrusion pressing puffing process will lead in corn reduced sugar and free amino acid it
Between Maillard reaction occurs, reduce the content of reduced sugar and free amino acid, cause the validity of amino acid to die down, hominy grits
Raw material will lead to the loss of vitamin, especially water soluble vitamin under high temperature and pressure friction and the evaporation of moisture
Loss late makes its nutritive value have a greatly reduced quality up to 50%；2, in production process hominy grits by high temperature, high pressure, high shear force work
With hydrogen bond is broken between will lead to starch, and starch degradation influences the Effect On Gelatinization Characteristics of starch, to influence the brew of product；3, it squeezes
Pressure extruding method need to operate at high temperature under high pressure, and energy consumption is higher.
Summary of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of dry method of instant corn nutrition snowflake piece and
Wet process combined type preparation method retains the battalion in corn while keeping dry method product roasting fragrance and color to the maximum extent
It forms point and flavor substance, improves the nutritive value of corn snowflake piece, improve the brew and mouthfeel of corn snowflake piece, and reduce
Energy consumption.
The dry and wet combined type preparation method of instant corn nutrition snowflake piece of the present invention, processing step are as follows:
(1) dry-way extrusion powder
It will normally dry hominy grits be prepared into popcorn using dry-way extrusion without mildew, free from extraneous odour, free from insect pests, color
Powder；
(2) dry hominy grits is impregnated
50 parts by weight~90 parts by weight are measured without the normal dry hominy grits of mildew, free from extraneous odour, free from insect pests, color, with 30 DEG C
~60 DEG C of drinking water impregnates 2h~4h, then removes immersion water, and the weight of drinking water used is at least impregnated dry corn
Twice of crushed grain weight；
(3) defibrination
The expanded corn powder of step (1) preparation is measured into 10 parts by weight~50 parts by weight, the corn after impregnating with step (2)
Crushed grain is sent together in colloid mill feed hopper and drinking water being added carrying out defibrination by colloid mill, and the additional amount of the drinking water is with step
Suddenly the weight ratio of corn syrup obtained by the expanded corn powder total weight and defibrination of the dry hominy grits of (2) metering and the metering of this step
For 1:(2.2~3.2) metering, control defibrination fineness is 80 mesh~150 mesh；
(4) pre-gelatinized and predrying
Corn syrup obtained by defibrination is subjected to pre-gelatinized and predrying at least a pair of pre-gelatinized roller rotated towards each other, is made
Corn syrup forms cornmeal mush in pre-gelatinized roller surface, and the pre-gelatinized roller controls pre-gelatinized using high steam as heat source
The throttle flow of roller makes 145 DEG C~150 DEG C of roller surface temperature；
(5) dry
The cornmeal mush that pre-gelatinized and predrying are formed is brought into the drying roller surface with pre-gelatinized roller engaged transmission, leads to
The cornflakes that drying roller heat drying is not higher than 8.0% to moisture content are crossed, the drying roller is using high steam as heat source, control
The throttle flow of drying roller processed makes 130 DEG C~135 DEG C of roller surface temperature；
(6) it is crushed sieving
Cornflakes under scraping from drying roller are delivered to broken sieving machine, by broken, screening, obtain meeting partial size
It is required that corn snowflake piece；
(7) it sterilizes
Obtained corn snowflake piece is sterilized with microwave disinfection equipment, the corn snowflake piece is set in microwave disinfection
Ulking thickness in standby is 1cm~2cm；
(8)) inner packing, metal detection and outer packing
Corn snowflake piece after sterilization is successively carried out to metering and rejects substandard product and outsourcing with inner packing, metal detection
Dress obtains instant corn nutrition snowflake flake products.
The dry and wet combined type preparation method of above-mentioned instant corn nutrition snowflake piece, the outer diameter of the pre-gelatinized roller
Less than the outer diameter of drying roller, the revolving speed of the pre-gelatinized roller is controlled in 20r/min~50r/min, the dryer roll
The revolving speed of cylinder is controlled in 2r/min~5r/min, is wanted so that the cornmeal mush thickness for coating drying roller surface meets technique
It asks, obtains easily broken cornflakes after drying.
The dry and wet combined type preparation method of above-mentioned instant corn nutrition snowflake piece, the sieve of the broken sieving machine
Fineness is 2mm~4mm.
The dry and wet combined type preparation method of above-mentioned instant corn nutrition snowflake piece, is killed with microwave disinfection equipment
When bacterium, microwave power is 300W~800W, and sterilizing time is 20s~100s.
The dry and wet combined type preparation method of above-mentioned instant corn nutrition snowflake piece, the pre-gelatinized roller and drying
The pressure of the heat source high steam of roller is 0.7MPa~1.0MPa.
The invention has the following advantages:
1, since the method for the invention is by the hominy grits mixing defibrination after the expanded corn powder of dry process and immersion, and
The temperature of subsequent handling is below dry method (extrusion method), thus obtained corn snowflake piece not only retains to the maximum extent
Nutritional ingredient and flavor substance in corn improve nutritive value, and roasting fragrance and color with dry method product.
2, the group technology dry using roller pre-gelatinized, predrying and roller, can not only realize continuous production, improve
The brew of product, and drying efficiency can be improved, reduce energy consumption.
3, the immersion of certain time has been carried out with drinking water to dry hominy grits due to the method for the invention, thus be conducive to
The progress of subsequent defibrination.
4, obtained corn snowflake piece is sterilized using microwave sterilization, is not only easy to control, safe and harmless,
And temperature is low, the time is short, speed is fast, is conducive to the nutritional ingredient and flavor substance that farthest retain corn snowflake piece.
Detailed description of the invention
Fig. 1 is the mounting means schematic diagram of pre-gelatinized roller and drying roller used in the method for the invention.
In figure, 1-pre-gelatinized roller, 2-drying rollers.
Specific embodiment
By way of example and in conjunction with the accompanying drawings to the dry and wet group of instant corn nutrition snowflake piece of the present invention
Box-like preparation method is described further.Obviously, described embodiment is only a part of the embodiments of the present invention, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Obtained all other embodiment belongs to the range that the present invention is protected.
In following embodiments, used twin-screw extruder, single screw squeezing expansion machine, air flow puffing machine, glue
It is body mill, pre-gelatinized roller, drying roller, broken sieving machine, tunnel type micro wave disinfection equipment, intermittent type microwave disinfection equipment, complete
Automatic powder material packaging machine, metal detecting device, sealing machine can be bought by market.
Dry hominy grits in following embodiments is to obtain no mildew, free from extraneous odour, free from insect pests, color after selecting by pretreatment
Normal dry hominy grits.1 parts by weight are 0.5 kilogram.
Embodiment 1
In the present embodiment, the processing step for preparing instant corn nutrition snowflake piece is as follows:
(1) dry-way extrusion powder
20 meshes are crossed after dry hominy grits is smashed with pulverizer, then add tap water to modulate the corn flour that screening obtains,
Soak corn flour, the additional amount of tap water is the 3.5% of corn flour weight, then modulated corn flour feeding twin-screw is squeezed
Bulking machine is pressed, extrusion is carried out at 180 DEG C, 0.8MPa, smashes the product after extrusion with pulverizer after, crosses 20
Mesh, and magnetic separation is carried out to screening gained expanded corn powder, obtain satisfactory expanded corn powder；
(2) dry hominy grits is impregnated
50 parts by weight are measured without the normal dry hominy grits of mildew, free from extraneous odour, free from insect pests, color, are put it into agitator tank
120 parts by weight of tap water for adding 40 DEG C, impregnate 3h, mixing speed 2r/min under stiring, then remove immersion water；
(3) defibrination
By step (1) preparation expanded corn powder measure 50 parts by weight, with step (2) impregnate after hominy grits together with send to
In colloid mill feed hopper and tap water is added by colloid mill progress defibrination, the additional amount of the tap water is with corn obtained by defibrination
The weight of slurry reaches the metering of 300 parts by weight, adjusts the spacing of colloid mill stator and rotor, and control defibrination fineness is 150 mesh；
(4) pre-gelatinized and predrying
By corn syrup obtained by defibrination respectively with two pairs with the pre-gelatinized roller that 20r/min is rotated towards each other carries out pre-gelatinized and
Predrying makes corn syrup form cornmeal mush in pre-gelatinized roller surface, and the pre-gelatinized roller is with the high steam of 0.8MPa
For heat source, the throttle flow for controlling pre-gelatinized roller makes 146 DEG C of roller surface temperature；
(5) dry
Drying roller is two, is engaged respectively with the pre-gelatinized roller that two pairs rotate towards each other (see Fig. 1), revolving speed 3r/
The cornmeal mush that min, pre-gelatinized and predrying are formed is brought into drying roller surface, passes through drying roller heat drying to moisture content
For 8.0% cornflakes, for the drying roller using the high steam of 0.8MPa as heat source, the throttle flow for controlling drying roller makes roller
Drum surface temperature is 131 DEG C；
(6) it is crushed sieving
Cornflakes under scraping from drying roller are delivered to broken sieving machine, the broken sieving by screw conveyor
The sieve fineness of machine is 2mm, by broken, screening, obtains the corn snowflake piece that partial size is not more than 2mm；
(7) it sterilizes
Obtained corn snowflake piece is sterilized with tunnel type micro wave disinfection equipment, the corn snowflake piece is in microwave
Ulking thickness in disinfection equipment is 1.5cm, and when sterilization, microwave power control is controlled in 800W, sterilizing time in 20s；
(8) inner packing, metal detection and outer packing
Corn snowflake piece after sterilization is subjected to automatic weighing, filling and sealing with automatic Powder packing machine, in completion
Then the corn snowflake piece for completing inner packing is carried out metal detection, rejects substandard product, be reloaded into outer packaging bag by packaging
In, and sealed with sealing machine, need spray printing to go out the date of manufacture on outer packaging bag, coding requires clear writing, content correct.
Embodiment 2
In the present embodiment, the processing step for preparing instant corn nutrition snowflake piece is as follows:
(1) dry-way extrusion powder
20 meshes are crossed after dry hominy grits is smashed with pulverizer, then add distilled water to modulate the corn flour that screening obtains,
Soak corn flour, the additional amount of distilled water is the 3.6% of corn flour weight, then modulated corn flour feeding twin-screw is squeezed
Bulking machine is pressed, extrusion is carried out at 160 DEG C, 0.9MPa, smashes the product after extrusion with pulverizer after, crosses 20
Mesh, and magnetic separation is carried out to screening gained expanded corn powder, obtain satisfactory expanded corn powder；
(2) dry hominy grits is impregnated
70 parts by weight are measured without the normal dry hominy grits of mildew, free from extraneous odour, free from insect pests, color, puts it into and impregnates in cylinder
It adds 50 DEG C of 150 parts by weight of distilled water and impregnates 2.5h, then remove immersion water；
(3) defibrination
By step (1) preparation expanded corn powder measure 30 parts by weight, with step (2) impregnate after hominy grits together with send to
In colloid mill feed hopper and distilled water is added by colloid mill progress defibrination, the additional amount of the distilled water is with corn obtained by defibrination
The weight of slurry reaches the metering of 260 parts by weight, adjusts the spacing of colloid mill stator and rotor, and control defibrination fineness is 100 mesh；
(4) pre-gelatinized and predrying
By corn syrup obtained by defibrination respectively with two pairs with the pre-gelatinized roller that 40r/min is rotated towards each other carries out pre-gelatinized and
Predrying makes corn syrup form cornmeal mush in pre-gelatinized roller surface, and the pre-gelatinized roller is with the high steam of 0.9MPa
For heat source, the throttle flow for controlling pre-gelatinized roller makes 148 DEG C of roller surface temperature；
(5) dry
Drying roller is two, is engaged respectively with the pre-gelatinized roller that two pairs rotate towards each other (see Fig. 1), revolving speed 2r/
The cornmeal mush that min, pre-gelatinized and predrying are formed is brought into drying roller surface, passes through drying roller heat drying to moisture content
For 7.0% cornflakes, for the drying roller using the high steam of 0.9MPa as heat source, the throttle flow for controlling drying roller makes roller
Drum surface temperature is 133 DEG C；
(6) it is crushed sieving
Cornflakes under scraping from drying roller are delivered to broken sieving machine, the broken sieving by screw conveyor
The sieve fineness of machine is 3mm, by broken, screening, obtains the corn snowflake piece that partial size is not more than 3mm；
(7) it sterilizes
Obtained corn snowflake piece is sterilized with intermittent type microwave disinfection equipment, the corn snowflake piece is in microwave
Ulking thickness in disinfection equipment is 2cm, and when sterilization, microwave power control is controlled in 300W, sterilizing time in 100s；
(8)) inner packing, metal detection and outer packing
Corn snowflake piece after sterilization is subjected to automatic weighing, filling and sealing with automatic Powder packing machine, in completion
Then the corn snowflake piece for completing inner packing is carried out metal detection, rejects substandard product, be reloaded into outer packaging bag by packaging
In, and sealed with sealing machine, need spray printing to go out the date of manufacture on outer packaging bag, coding requires clear writing, content correct.
Embodiment 3
In the present embodiment, the processing step for preparing instant corn nutrition snowflake piece is as follows:
(1) dry-way extrusion powder
The tap water that dry hominy grits is added to its weight 4% carries out extruding with air flow puffing machine under 0.8MPa pressure, then
Product after extruding is smashed with pulverizer, 20 meshes is crossed, and magnetic separation is carried out to screening gained expanded corn powder, obtains and meet the requirements
Expanded corn powder；
(2) dry hominy grits is impregnated
60 parts by weight are measured without the normal dry hominy grits of mildew, free from extraneous odour, free from insect pests, color, are put it into jacketed pan
It adds 30 DEG C of 120 parts by weight of tap water and impregnates 4h, then remove immersion water；
(3) defibrination
By step (1) preparation expanded corn powder measure 40 parts by weight, with step (2) impregnate after hominy grits together with send to
In colloid mill feed hopper and tap water is added by colloid mill progress defibrination, the additional amount of the tap water is with corn obtained by defibrination
The weight of slurry reaches the metering of 320 parts by weight, adjusts the spacing of colloid mill stator and rotor, and control defibrination fineness is 120 mesh；
(4) pre-gelatinized and predrying
Corn syrup obtained by defibrination is subjected to pre-gelatinized and predry with a pair with the pre-gelatinized roller that 50r/min is rotated towards each other
It is dry, so that corn syrup is formed cornmeal mush in pre-gelatinized roller surface, the pre-gelatinized roller is heat with the high steam of 0.7MPa
The throttle flow in source, control pre-gelatinized roller makes 145 DEG C of roller surface temperature；
(5) dry
Drying roller is one, is engaged with the pre-gelatinized roller rotated towards each other (see Fig. 1), revolving speed 5r/min, pre-gelatinized
The cornmeal mush formed with predrying is brought into drying roller surface, is 7.5% by drying roller heat drying to moisture content
Cornflakes, for the drying roller using the high steam of 0.7MPa as heat source, the throttle flow for controlling drying roller makes roller surface temperature
Degree is 130 DEG C；
(6) it is crushed sieving
Cornflakes under scraping from drying roller are delivered to cart into broken sieving machine, the broken sieving machine
Sieve fineness is 2mm, by broken, screening, obtains the corn snowflake piece that partial size is not more than 2mm；
(7) it sterilizes
Obtained corn snowflake piece is sterilized with tunnel type micro wave disinfection equipment, the corn snowflake piece is in microwave
Ulking thickness in disinfection equipment is 2cm, and when sterilization, microwave power control is controlled in 500W, sterilizing time in 60s；
(8)) inner packing, metal detection and outer packing
Corn snowflake piece after sterilization is subjected to automatic weighing, filling and sealing with automatic Powder packing machine, in completion
Then the corn snowflake piece for completing inner packing is carried out metal detection, rejects substandard product, be reloaded into outer packaging bag by packaging
In, and sealed with sealing machine, need spray printing to go out the date of manufacture on outer packaging bag, coding requires clear writing, content correct.
Embodiment 4
In the present embodiment, the processing step for preparing instant corn nutrition snowflake piece is as follows:
(1) dry-way extrusion powder
20 meshes are crossed after dry hominy grits is smashed with pulverizer, then add mineral water to modulate the corn flour that screening obtains,
Soak corn flour, the additional amount of mineral water is the 3.9% of corn flour weight, then modulated corn flour feeding single screw rod is squeezed
Bulking machine is pressed, extrusion is carried out at 170 DEG C, 1.0MPa, smashes the product after extrusion with pulverizer after, crosses 20
Mesh, and magnetic separation is carried out to screening gained expanded corn powder, obtain satisfactory expanded corn powder；
(2) dry hominy grits is impregnated
90 parts by weight are measured without the normal dry hominy grits of mildew, free from extraneous odour, free from insect pests, color, are put it into soaking compartment
It adds 60 DEG C of 190 parts by weight of mineral water and impregnates 2h, then remove immersion water；
(3) defibrination
By step (1) preparation expanded corn powder measure 10 parts by weight, with step (2) impregnate after hominy grits together with send to
In colloid mill feed hopper and mineral water is added by colloid mill progress defibrination, the additional amount of the mineral water is with corn obtained by defibrination
The weight of slurry reaches the metering of 220 parts by weight, adjusts the spacing of colloid mill stator and rotor, and control defibrination fineness is 80 mesh；
(4) pre-gelatinized and predrying
Corn syrup obtained by defibrination is subjected to pre-gelatinized and predry with a pair with the pre-gelatinized roller that 20r/min is rotated towards each other
It is dry, so that corn syrup is formed cornmeal mush in pre-gelatinized roller surface, the pre-gelatinized roller is heat with the high steam of 1.0MPa
The throttle flow in source, control pre-gelatinized roller makes 150 DEG C of roller surface temperature；
(5) dry
Drying roller is one, is engaged with the pre-gelatinized roller rotated towards each other (see Fig. 1), revolving speed 2r/min, pre-gelatinized
The cornmeal mush formed with predrying is brought into drying roller surface, is 5.0% by drying roller heat drying to moisture content
Cornflakes, for the drying roller using the high steam of 1.0MPa as heat source, the throttle flow for controlling drying roller makes roller surface temperature
Degree is 135 DEG C；
(6) it is crushed sieving
Cornflakes under scraping from drying roller are delivered to cart into broken sieving machine, the broken sieving machine
Sieve fineness is 4mm, by broken, screening, obtains the corn snowflake piece that partial size is not more than 4mm；
(7) it sterilizes
Obtained corn snowflake piece is sterilized with intermittent type microwave disinfection equipment, the corn snowflake piece is in microwave
Ulking thickness in disinfection equipment is 1cm, and when sterilization, microwave power control is controlled in 700W, sterilizing time in 60s；
(8)) inner packing, metal detection and outer packing
Corn snowflake piece after sterilization is subjected to automatic weighing, filling and sealing with automatic Powder packing machine, in completion
Then the corn snowflake piece for completing inner packing is carried out metal detection, rejects substandard product, be reloaded into outer packaging bag by packaging
In, and sealed with sealing machine, need spray printing to go out the date of manufacture on outer packaging bag, coding requires clear writing, content correct.
Embodiment 5
In the present embodiment, the processing step for preparing instant corn nutrition snowflake piece is as follows:
(1) dry-way extrusion powder
20 meshes are crossed after dry hominy grits is smashed with pulverizer, then add distilled water to modulate the corn flour that screening obtains,
Soak corn flour, the additional amount of distilled water is the 4.0% of corn flour weight, then modulated corn flour feeding twin-screw is squeezed
Bulking machine is pressed, extrusion is carried out at 180 DEG C, 0.8MPa, smashes the product after extrusion with pulverizer after, crosses 20
Mesh, and magnetic separation is carried out to screening gained expanded corn powder, obtain satisfactory expanded corn powder；
(2) dry hominy grits is impregnated
80 parts by weight are measured without the normal dry hominy grits of mildew, free from extraneous odour, free from insect pests, color, are put it into agitator tank
170 parts by weight of distilled water for adding 50 DEG C, impregnate 2h, mixing speed 2r/min under stiring, then remove immersion water；
(3) defibrination
By step (1) preparation expanded corn powder measure 20 parts by weight, with step (2) impregnate after hominy grits together with send to
In colloid mill feed hopper and distilled water is added by colloid mill progress defibrination, the additional amount of the distilled water is with corn obtained by defibrination
The weight of slurry reaches the metering of 280 parts by weight, adjusts the spacing of colloid mill stator and rotor, and control defibrination fineness is 110 mesh；
(4) pre-gelatinized and predrying
Corn syrup obtained by defibrination is subjected to pre-gelatinized and predry with a pair with the pre-gelatinized roller that 30r/min is rotated towards each other
It is dry, so that corn syrup is formed cornmeal mush in pre-gelatinized roller surface, the pre-gelatinized roller is heat with the high steam of 0.85MPa
The throttle flow in source, control pre-gelatinized roller makes 147 DEG C of roller surface temperature；
(5) dry
Drying roller is one, is engaged with the pre-gelatinized roller rotated towards each other (see Fig. 1), revolving speed 4r/min, pre-gelatinized
The cornmeal mush formed with predrying is brought into drying roller surface, is 6.5% by drying roller heat drying to moisture content
Cornflakes, for the drying roller using the high steam of 0.85MPa as heat source, the throttle flow for controlling drying roller makes roller surface temperature
Degree is 133 DEG C；
(6) it is crushed sieving
Cornflakes under scraping from drying roller are delivered to cart into broken sieving machine, the broken sieving machine
Sieve fineness is 3mm, by broken, screening, obtains the corn snowflake piece that partial size is not more than 3mm；
(7) it sterilizes
Obtained corn snowflake piece is sterilized with tunnel type micro wave disinfection equipment, the corn snowflake piece is in microwave
Ulking thickness in disinfection equipment is 1cm, and when sterilization, microwave power control is controlled in 600W, sterilizing time in 55s；
(8)) inner packing, metal detection and outer packing
Corn snowflake piece after sterilization is subjected to automatic weighing, filling and sealing with automatic Powder packing machine, in completion
Then the corn snowflake piece for completing inner packing is carried out metal detection, rejects substandard product, be reloaded into outer packaging bag by packaging
In, and sealed with sealing machine, need spray printing to go out the date of manufacture on outer packaging bag, coding requires clear writing, content correct.
Claims (9)
1. a kind of dry and wet combined type preparation method of instant corn nutrition snowflake piece, it is characterised in that processing step is such as
Under:
(1) dry-way extrusion powder
It will normally dry hominy grits be prepared into expanded corn powder using dry-way extrusion without mildew, free from extraneous odour, free from insect pests, color；
(2) dry hominy grits is impregnated
50 parts by weight~90 parts by weight are measured without the normal dry hominy grits of mildew, free from extraneous odour, free from insect pests, color, with 30 DEG C~60
DEG C drinking water impregnate 2h~4h, then remove immersion water, the weight of drinking water used is at least impregnated dry hominy grits weight
Twice of amount；
(3) defibrination
The expanded corn powder of step (1) preparation is measured into 10 parts by weight~50 parts by weight, the hominy grits one after impregnating with step (2)
It rises and send in colloid mill feed hopper and drinking water being added by colloid mill progress defibrination, the additional amount of the drinking water is with step
(2) weight ratio of corn syrup obtained by the expanded corn powder total weight and defibrination of the dry hominy grits of metering and the metering of this step is
1:(2.2~3.2) metering, control defibrination fineness is 80 mesh~150 mesh；
(4) pre-gelatinized and predrying
Corn syrup obtained by defibrination is subjected to pre-gelatinized and predrying at least a pair of pre-gelatinized roller rotated towards each other, makes corn
Slurry forms cornmeal mush in pre-gelatinized roller surface, and the pre-gelatinized roller controls pre-gelatinized roller using high steam as heat source
Throttle flow make 145 DEG C~150 DEG C of roller surface temperature；
(5) dry
The cornmeal mush that pre-gelatinized and predrying are formed is brought into the drying roller surface with pre-gelatinized roller engaged transmission, by dry
Dry roller heat drying is not higher than 8.0% cornflakes to moisture content, and for the drying roller using high steam as heat source, control is dry
The throttle flow of dry roller makes 130 DEG C~135 DEG C of roller surface temperature；
(6) it is crushed sieving
Cornflakes under scraping from drying roller are delivered to broken sieving machine, by broken, screening, obtain meeting Particle size requirements
Corn snowflake piece；
(7) it sterilizes
Obtained corn snowflake piece is sterilized with microwave disinfection equipment, the corn snowflake piece is in microwave disinfection equipment
Ulking thickness be 1cm~2cm；
(8)) inner packing, metal detection and outer packing
Corn snowflake piece after sterilization is successively carried out to metering to obtain with inner packing, metal detection rejecting substandard product and outer packing
To instant corn nutrition snowflake flake products.
2. the dry and wet combined type preparation method of instant corn nutrition snowflake piece, feature exist according to claim 1
It controls in the revolving speed of the drying roller in 2r/min~5r/min.
3. the dry and wet combined type preparation method of instant corn nutrition snowflake piece according to claim 1 or claim 2, feature
The sieve fineness for being the broken sieving machine is 2mm~4mm.
4. the dry and wet combined type preparation method of instant corn nutrition snowflake piece according to claim 1 or claim 2, feature
When being to be sterilized with microwave disinfection equipment, microwave power is 300W~800W, and sterilizing time is 20s~100s.
5. the dry and wet combined type preparation method of instant corn nutrition snowflake piece, feature exist according to claim 3
When being sterilized with microwave disinfection equipment, microwave power is 300W~800W, and sterilizing time is 20s~100s.
6. the dry and wet combined type preparation method of instant corn nutrition snowflake piece according to claim 1 or claim 2, feature
The pressure for being the heat source high steam of the pre-gelatinized roller and drying roller is 0.7MPa~1.0MPa.
7. the dry and wet combined type preparation method of instant corn nutrition snowflake piece, feature exist according to claim 3
In the pressure of the pre-gelatinized roller and the heat source high steam of drying roller be 0.7MPa~1.0MPa.
8. the dry and wet combined type preparation method of instant corn nutrition snowflake piece, feature exist according to claim 4
In the pressure of the pre-gelatinized roller and the heat source high steam of drying roller be 0.7MPa~1.0MPa.
9. the dry and wet combined type preparation method of instant corn nutrition snowflake piece, feature exist according to claim 5
In the pressure of the pre-gelatinized roller and the heat source high steam of drying roller be 0.7MPa~1.0MPa.
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