CN110214889A - A kind of processing method of half-dried coarse cereals rice flour - Google Patents
A kind of processing method of half-dried coarse cereals rice flour Download PDFInfo
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- CN110214889A CN110214889A CN201910544163.9A CN201910544163A CN110214889A CN 110214889 A CN110214889 A CN 110214889A CN 201910544163 A CN201910544163 A CN 201910544163A CN 110214889 A CN110214889 A CN 110214889A
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- China
- Prior art keywords
- rice flour
- rice
- temperature
- taro
- buckwheat
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Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
- A23L19/10—Products from fruits or vegetables; Preparation or treatment thereof of tuberous or like starch containing root crops
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L7/00—Cereal-derived products; Malt products; Preparation or treatment thereof
- A23L7/10—Cereal-derived products
Abstract
The invention discloses a kind of processing methods of half-dried coarse cereals rice flour.The method of the present invention mainly comprises the steps of: that step 1, rice, buckwheat impregnate to obtain and impregnates rice, buckwheat;Taro is cut into grain, and centrifugal dehydration to moisture content is 65~75%, obtains fresh-cut taro particle;Step 2, extrusion forming will impregnate rice, immersion buckwheat and taro particle and mix according to 50-80:5-10:5-10 mass parts ratio, and extrusion forming obtains preliminary working rice flour;Wherein, the process conditions of extrusion forming are as follows: wire vent panel aperture is set as 1.0~1.5mm;Rate of feeding is 54~70r/min minutes;Twin-screw revolving speed is 130~170r/min;Squeezing area's temperature in cylinder is 95~110 DEG C;Step 3, curing, stand 13~18h, rice flour after being cured for preliminary working rice flour under the conditions of 18~20 DEG C of temperature, relative humidity 75~85%;Step 4, drying, rehydration are dried to get the rice flour rice flour after curing using the wet oven drying method of gradient temperature control control.
Description
Technical field
The present invention relates to food processing technology field more particularly to a kind of fresh-cut taro rice flour processing methods.
Background technique
Have a proverb in southern china: " would rather three days without meat can not one day without powder!" visible rice flour has become people
Essential staple food in life!Instantly rice flour is largely divided into several forms: dry rice flour, dry mixing rice, fresh rice-flour noodles, guarantee the quality it is fresh
Wet-milling etc.;Various rice flour have the characteristics that different: dry rice flour: the shelf-life in good taste is longer, but it is very troublesome to cook, it usually needs
Impregnate bring again within 5 hours boil it is very inconvenient;Fresh rice-flour noodles: mouthfeel is more glutinous, and the shelf-life is very short, be typically only capable to adhere to 3 hours just
Meeting total plate count is exceeded;Fresh wet fresh-keeping powder long shelf-life moisture content is high, but mouthfeel is bad due to long-term soaking;It carries on the back herein
Under scape, market is highly desirable to a product for both having facilitated long shelf-life in good taste.
Summary of the invention
The object of the present invention is to provide a kind of processing methods of half-dried coarse cereals rice flour, can directly adopt the removal portion of fresh-cut
Taro particle after dividing moisture is compounded with the buckwheat after impregnating, and fresh-cut taro content is high, and extrusion forming obtains best in quality half
Dry coarse cereals rice flour.
To realize above-mentioned mesh, a kind of processing method of half-dried coarse cereals rice flour of the present invention is mainly comprised the steps of:
1) buckwheat, which impregnates to obtain, impregnates buckwheat;Taro pelletizing, centrifugal dehydration to moisture content are 65~75%, obtain taro particle;
2) extrusion forming will impregnate rice, impregnate buckwheat and taro particle according to the progress of 50-80:5-10:5-10 mass parts ratio
Mixing, using twin-screw extruder molding equipment extrusion forming, obtains preliminary working rice flour;Wherein, the process conditions of extrusion forming are as follows:
Wire vent panel aperture is set as 1.0-1.5mm;Rate of feeding is 54~70r/min minutes;Twin-screw revolving speed is 130~170r/min;
Squeezing area's temperature in cylinder is 95~110 DEG C;
3) it cures, preliminary working rice flour is stood into 13~18h under the conditions of 18~20 DEG C of temperature, relative humidity 75~85%, is obtained ripe
Rice flour after change;
4) dry, it using the wet stoving process of gradient temperature control control, is dried in three stages, the first stage: 38 DEG C of temperature, relatively wet
Degree 82%, time 100min;Second stage: 34 DEG C of temperature, relative humidity 75%, time 120min;Phase III: 28 DEG C of temperature,
Relative humidity 56%, time 100min, for use;
Rehydration: rehydration operation will be carried out using the rice flour after the wet stoving process of gradient temperature control control, the rehydration operation is by rice flour
It is soaked in 60 DEG C of sterile waters after 10-15min, is placed in 25~30 DEG C of temperature, humidity 55~60%, 90~120min of the time dries
Half-dried coarse cereals rice flour is prepared.
The buckwheat soaking time is 18~324h, and can be ground into powdery and no granular sensation with the grain of rice, impregnates buckwheat
Wheat water content reaches 34~36% for standard.
After the pelletizing by taro, 15~25min of immersion in color protection solution is put into before carrying out centrifugal dehydration;
The color protection solution mainly includes the ingredient of following parts by weight: sodium chloride 0.2~0.6, calcium chloride 0.05~0.3, anti-bad
Hematic acid 0.02~0.3 and distilled water 90-110;In addition, the color protection solution further includes malic acid 0.08~0.3, citric acid
One or both of 0.06~0.4.
The Centrifugal dehydration method are as follows: the graininess taro after being impregnated by color protection solution is put into centrifugal dehydrator and is carried out
Centrifugation, 800-1600 revs/min of revolving speed, 6~10min of centrifugation time.
The rice flour of adhesion is dried before the rice flour curing and is separated.
The process conditions of the extrusion forming are as follows: wire vent panel aperture is set as 1.mm;Rate of feeding is 60r/min minutes;It is double
Screw speed is 150r/min;Squeezing area's temperature in cylinder is 100 DEG C.
The oven drying method method particularly includes: the first stage: 38 DEG C of temperature, relative humidity 82%, time 100min;Second
Stage: 34 DEG C of temperature, relative humidity 75%, time 120min;Phase III: 28 DEG C of temperature, relative humidity 56%, the time
100min。
The rehydration method particularly includes: rehydration operation will be carried out using the rice flour after the wet stoving process of gradient temperature control control,
Half-dried coarse cereals rice flour is prepared for rice flour to be soaked in 60 DEG C of sterile waters in the rehydration operation.
A kind of processing method of half-dried coarse cereals rice flour of the present invention, its advantages: this patent is de- by using centrifugation
The mode of water first removes the partial moisture in fresh-cut taro particle, can make the water content of taro particle be reduced to 75% hereinafter, again with
Buckwheat mixing is impregnated, keeps its water content moderate, by optimizing extrusion forming condition, by fresh-cut taro particle and impregnates rice, buckwheat
Wheat is directly processed into rice flour, overcomes taro moisture content height, viscosity greatly from the drawbacks of directly processing rice flour is unable to, has
Simple process, low manufacture cost, it is best in quality the advantages that, be realize taro staple food consumption convenient way;Rice flour is pasted after rehydration
Change degree and viscosity are bigger, and digestion time is shorter, and rice flour surface irregularity and hole are more, make that coarse cereals rice pink colour pool is good, appearance
It is smooth, not easy to break, best in quality, it is neither too hard, nor too soft after being cooked, it is smooth flexible, there is the distinctive fragrance of taro.
Specific embodiment
Embodiment 1
A kind of processing method of half-dried coarse cereals rice flour of the present invention, processing technology are as follows:
(1) impregnate buckwheat: rice, buckwheat impregnate 20h, can be lightly ground the grain of rice with hand, as can at powder and without apparent
Grain is felt, illustrates that immersion has reached requirement;It pulls rice, buckwheat out, drains appearance moisture, rice, buckwheat moisture content after immersion
35%;
(2) preparation of fresh-cut taro particle: the graininess of grain of rice size is cut into new taro cleaning, peeling;It is put into color protection solution
Impregnate 20min;It pulls taro particle out to put into centrifugal dehydrator mesh bag, mesh bag beam mouth, mesh bag is put into centrifugal dehydrator dehydration
In machine, it is centrifuged 6min, until taro moisture content 75%.Wherein color protection solution includes the substance of following percentage: sodium chloride 0.4%,
Calcium chloride 0.2%, ascorbic acid 0.2% and citric acid 0.2%;
(3) fresh-cut taro particle is compounded with rice, buckwheat: fresh-cut taro particle is uniformly mixed with the immersion buckwheat of 3 times of quality
And the immersion rice of 10 times of quality;
(4) setting of twin-screw extruder molding equipment condition:
1. feeding: twin screen extrusion apparatus feeding hopper, rate of feeding is added in fresh-cut taro particle and the mixture for impregnating buckwheat
55r/min minutes;
2. extrusion forming squeezes in cylinder 100 DEG C of area's temperature, is gelatinized fresh-cut taro particle and buckwheat starch sufficiently;
3. twin-screw revolving speed: twin-screw revolving speed is adjusted to 150r/min, and taro and buckwheat particle are sheared, are ground into fine particle;
4. wire vent panel aperture: the wire vent panel aperture 1.5mm of twin screen extrusion apparatus, rice flour forming;
(5) loose powder: rice flour after molding is dissipated with wind, is bonded together rice flour not;
(6) maturation process: hanging on climatic chamber for loose rice flour, and 18~20 DEG C of the temperature inside the box, relative humidity 78~
80%, place 16h;
(7) dry: the wet stoving process of gradient temperature control control is used, is dried in three stages, the first stage: 35 DEG C of temperature, relatively
Humidity 80%, time 90min;Second stage: 32 DEG C of temperature, relative humidity 72%, time 150min;Phase III: 28 DEG C of temperature,
Relative humidity 58%, time 100min, for use;
Rehydration: rehydration operation will be carried out using the rice flour after the wet stoving process of gradient temperature control control, the rehydration operation is by rice flour
It is soaked in 60 DEG C of sterile waters after 10-15min, is placed in 25~30 DEG C of temperature, humidity 55~60%, 90~120min of the time dries
Half-dried coarse cereals rice flour is prepared.
Embodiment 2
A kind of processing method of half-dried coarse cereals rice flour of the present invention, processing technology are as follows:
(1) impregnate buckwheat: rice, buckwheat impregnate 18h, can be lightly ground the grain of rice with hand, as can at powder and without apparent
Grain is felt, illustrates that immersion has reached requirement;It pulls rice, buckwheat out, drains appearance moisture, rice, buckwheat moisture content after immersion
33%;
(2) preparation of fresh-cut taro particle: the graininess of grain of rice size is cut into new taro cleaning, peeling;It is put into color protection solution
Impregnate 25min;It pulls taro particle out to put into centrifugal dehydrator mesh bag, mesh bag beam mouth, mesh bag is put into centrifugal dehydrator or takes off
Water dispenser is centrifuged 8min, until taro moisture content 72%.Wherein color protection solution includes the substance of following percentage: sodium chloride 0.5%,
Calcium chloride 0.25%, ascorbic acid 0.25%, malic acid 0.15% and citric acid 0.1%;
(3) fresh-cut taro particle is compounded with rice, buckwheat: fresh-cut taro particle is uniformly mixed with the immersion buckwheat of 2 times of quality
And the immersion rice of 10 times of quality;
(4) setting of twin-screw extruder molding equipment condition:
1. feeding: twin screen extrusion apparatus feeding hopper, rate of feeding is added in fresh-cut taro particle and the mixture for impregnating buckwheat
65r/min minutes;
2. extrusion forming squeezes in cylinder 110 DEG C of area's temperature, fresh-cut taro particle and buckwheat starch is made to be sufficiently mixed, be gelatinized;
3. twin-screw revolving speed: twin-screw revolving speed is adjusted to 160r/min, and fresh-cut taro particle and buckwheat particle are sheared, are ground into
Fine particle;
4. wire vent panel aperture: the wire vent panel aperture 1.5mm of twin screen extrusion apparatus, rice flour forming;
(5) loose powder: molding rice flour is dissipated with wind, is bonded together rice flour not;
(6) maturation process: loose rice flour hangs on climatic chamber, and 18~20 DEG C of the temperature inside the box, relative humidity 80~82%,
Place 14h;
(7) dry: the wet stoving process of gradient temperature control control is used, is dried in three stages, the first stage: 38 DEG C of temperature, relatively
Humidity 82%, time 100min;Second stage: 34 DEG C of temperature, relative humidity 75%, time 120min;Phase III: temperature 28
DEG C, relative humidity 56%, time 100min, for use;
Rehydration: rehydration operation will be carried out using the rice flour after the wet stoving process of gradient temperature control control, the rehydration operation is by rice flour
It is soaked in 60 DEG C of sterile waters after 10-15min, is placed in 25~30 DEG C of temperature, humidity 55~60%, 90~120min of the time dries
Half-dried coarse cereals rice flour is prepared.
Claims (7)
1. a kind of processing method of half-dried coarse cereals rice flour, it is characterised in that: mainly comprise the steps of:
1) rice, buckwheat, which impregnate to obtain, impregnates rice, buckwheat;Taro is cut into the graininess of grain of rice size, centrifugal dehydration to moisture
Content is 65~75%, obtains taro particle, the rice, buckwheat, taro mass parts ratio be 50-80:5-10:5-10;
2) extrusion forming will impregnate rice, immersion buckwheat and taro particle and mix according to mass ratio, and utilize twin-screw extruder
Molding equipment extrusion forming obtains preliminary working rice flour;Wherein, the process conditions of extrusion forming are as follows: wire vent panel aperture is set as 1.0~
1.5mm;Rate of feeding is 54~70r/min minutes;Twin-screw revolving speed is 130~170r/min;Squeezing area's temperature in cylinder is
95~110 DEG C;
3) it cures, preliminary working rice flour is stood into 13~18h under the conditions of 18~20 DEG C of temperature, relative humidity 75~85%, is obtained ripe
Rice flour after change;
4) dry, rice flour after curing is dried to get the rice flour using gradient temperature control control wet oven drying method;Wherein, described
Oven drying method method particularly includes: the first stage: 36~40 DEG C of temperature, relative humidity 76~85%, 90~120min of time;Second
Stage: 31~35 DEG C of temperature, relative humidity 70~75%, 120~150min of time;Phase III: 25~30 DEG C of temperature, humidity
55~60%, 90~120min of time, for use;
Rehydration: rehydration operation will be carried out using the rice flour after the wet stoving process of gradient temperature control control, the rehydration operation is by rice flour
It is soaked in 60 DEG C of sterile waters after 10-15min, is placed in 25~30 DEG C of temperature, humidity 55~60%, 90~120min of the time dries
Half-dried coarse cereals rice flour is prepared.
2. a kind of processing method of half-dried coarse cereals rice flour as described in claim 1, it is characterised in that: in step 1), buckwheat impregnates
Time is 18~for 24 hours, and powdery and no granular sensation can be ground into the grain of rice, impregnate buckwheat water content and reach 33~36% and be
Standard.
3. a kind of processing method of half-dried coarse cereals rice flour as described in claim 1, it is characterised in that: in step 1), taro is cut
After grain, 15~25min of immersion in color protection solution is put into before carrying out centrifugal dehydration;Wherein, the color protection solution mainly includes
The ingredient of following parts by weight: sodium chloride 0.2~0.6, calcium chloride 0.05~0.3, ascorbic acid 0.02~0.3 and distilled water
90-110;In addition, the color protection solution further includes one or both of 0.08~0 .3 of malic acid, citric acid 0.06~0.4.
4. a kind of processing method of half-dried coarse cereals rice flour as claimed in claim 3, it is characterised in that: the Centrifugal dehydration method
Are as follows: the graininess taro after being impregnated by color protection solution is put into centrifugal dehydrator and is centrifuged, 800-1600 revs/min of revolving speed
Clock, 6~10min of centrifugation time.
5. a kind of processing method of half-dried coarse cereals rice flour as described in claim 1, it is characterised in that: in step 3), rice flour curing
The preceding rice flour by adhesion, which is dried, to be separated.
6. a kind of processing method of half-dried coarse cereals rice flour as described in claim 1, it is characterised in that: in step 2, extrusion forming
Process conditions are as follows: wire vent panel aperture is set as 1 .5mm;Rate of feeding is 60r/min minutes;Twin-screw revolving speed is 150r/min;
Squeezing area's temperature in cylinder is 100 DEG C.
7. a kind of processing method of half-dried coarse cereals rice flour as described in claim 1, it is characterised in that: in step 4), the drying
Method method particularly includes: the first stage: 38 DEG C of temperature, relative humidity 82%, time 100min;Second stage: 34 DEG C of temperature, phase
To humidity 75%, time 120min;Phase III: 28 DEG C of temperature, relative humidity 56%, time 100min.
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Cited By (1)
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CN113019568A (en) * | 2021-03-16 | 2021-06-25 | 无锡东谷工程科技有限公司 | Semi-dry rice milling process |
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