CN102726666B - Method for preparing sweet corn flour through drying by using enzymolysis roller - Google Patents
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Abstract
The invention discloses a method for preparing sweet corn flour through drying by using an enzymolysis roller, relating to a method for preparing corn flour and mainly solving the problems of imbibitions, poor sense stat and single variety of rice flour in the market of corn flour made by adopting the traditional method. The preparation method of the sweet corn flour comprises the steps of: firstly, adding water in sweet corn subjected to impurity removal, placing in a colloid mill for grinding, filtering and peeling to obtain sweet corn filter pulp; secondly, heating the sweet corn filter pulp, respectively placing amylase, protease and cellulose, and carrying out hydrolysis treatment; thirdly, homogenizing the sweet corn filter pulp with an enzymolysis solution and then placing in a rotary evaporator for vacuum concentration, and adding a crosslinking agent; and fourthly, placing sweet corn concentrated pulp subjected to gelatinization into a steam roller dryer for roller drying to prepare the sweet corn flour. The sweet corn flour made by adopting the method has water absorbability index of 5.3 and the sense grade of 8.75, is good in absorption rate in a human body, can be applied to industrialized production, and is blended into rice paste by using hot water, thus the variety of baby rice flour in the market is increased.
Description
Technical field
The present invention relates to the preparation method of corn ground rice.
Background technology
At present, the baby rice powder market of China is primary raw material mainly with rice greatly, and kind is single, and processing technology is simple, and trophism and the property digested and assimilated of product are poor.Fresh edible maize is described as gold food and life food always, deeply is subjected to consumers in general's favor.Eat corn raw and be the saccharoid type in corn, lysine content is high.Corn also contains the compositions such as several mineral materials and dietary fiber, oryzanol, sterol, has certain health-care efficacy.On domestic and international market, the corn product has quick-frozen corn, corn can, preservation by low temperature corn, sweet-corn beverage, corn sour milk etc., and infant's corn ground rice of preparation yet there are no report take corn as primary raw material.
Enzymolysis can improve the dissolubility of product, the sugariness that digestibility improves product simultaneously, need not to add sucrose.Along with growth in the living standard, people are increasing to the food demand of health.Therefore, the corn ground rice of the preparation of the method by enzymolysis, roller drying has certain market potential.Because corn self content of starch is low, simultaneously through direct ground rice imbibition and the sense organ state difference of making by roller drying after enzymolysis.Can significantly improve water swellability and the sense organ state of product by adding crosslinking agent.The drying means of food has freeze-drying, boulton process, spray drying process, cylinder drying etc., the drying and processing method of ground rice is generally selected cylinder drying, cylinder drying can be processed full-bodied food, and it is fast to have rate of drying, the advantages such as efficient is high, and energy consumption and processing cost are low.
To the liking and the characteristics such as corn ground rice is of high nutritive value, instant edible of corn, will certainly drive the development of corn industry due to people.The suitability for industrialized production of corn ground rice meets the needs of Development in China Market.
Summary of the invention
The present invention seeks to have in order to solve ground rice imbibition, the sense organ state difference that the corn rice powder processing method is made now, in ground rice, the utilization rate of nutriment in human body hanged down and the single problem of baby rice powder market kind, and provides the enzymolysis roller drying to prepare the method for corn ground rice.
The method that the enzymolysis roller drying prepares corn ground rice follows these steps to realize:
One, add the water that accounts for 3 times of corn quality in the corn after the removal of impurities, putting into colloid mill roughly grinds, wherein colloid mill mill body gap is 2mm, filter with 5 mesh sieve after corase grind and remove the corn skin, obtain the corn filter residue, then with the water that accounts for 1 times of corn quality, corn filter residue 10min is cleaned in concussion, again 2 μ m are transferred in colloid mill mill body gap, the fine grinding of the corn filter residue after cleaning obtains the corn filter pulp;
Two, the corn filter pulp is heated to 50 ℃, add the amylorrhexis 70～100min that accounts for corn filter pulp mass fraction 0.45%, then add the protease hydrolytic 110～150min that accounts for corn filter pulp mass fraction 0.64%, add the cellulase hydrolysis 4～7h that accounts for corn filter pulp mass fraction 0.6%, then be heated to 95 ℃ of enzyme 30min that go out, be cooled to room temperature, obtain corn slurry enzymolysis liquid;
Three, corn slurry enzymolysis liquid is added in homogenizer, at temperature 50 C, pressure is homogeneous under 15MPa, then put into Rotary Evaporators, heating-up temperature is 50 ℃ in water-bath, pressure is that under the condition of 0.095MPa, Vacuum Concentration is 10%～20% corn underflow to obtaining mass concentration, then adds the crosslinking agent that accounts for corn underflow mass fraction 15%～40%, obtains corn underflow A;
Four, with corn underflow A in adjunce copper with the temperature gelatinization 10～60min of 65 ℃～90 ℃, then join in the Materials hopper of steam roller drying machine, be 0.3～0.5MPa at steam pressure, drum rotation speed is that the condition bottom roll drying of 2 ~ 5r/min makes corn ground rice;
Wherein amylase activity described in step 2 is 20000U/g; Described proteinase activity is 100000U/g; Described cellulase activity is 20000U/g;
Crosslinking agent described in step 3 is waxy corn starch, glutinous corn powder or rice meal.
The present invention prepares by the enzymolysis roller drying corn ground rice injectivity index 5.3 that the method for corn ground rice is made, sensory evaluation scores 8.75, and the imbibition index of visible corn ground rice is low, the sense organ state is good.
Utilize the response surface method to analyze corn hydrolyzate content, steam pressure and drum rotation speed on the size order that affects of corn ground rice injectivity index and sensory evaluation scores to be: drum rotation speed corn underflow mass concentration steam pressure, for the suitability for industrialized production of corn ground rice provides reference frame.
The utilization rate of nutriment in human body that the present invention prepares corn ground rice is high.Owing to comprising a large amount of mineral matter elements and vitamin in the maize cell membrane, be unfavorable for absorbing of human body, the present invention improves the dissolution rate of nutriment by enzymolysis, destroy the structure of fiber, make proteolysis become peptide, Starch Hydrolysis to become polysaccharide and monose, fiber to improve water-soluble fibre content after being hydrolyzed, increase the absorption rate of corn ground rice nutriment in human body alimentary canal of the present invention's preparation.
Do not use chemical addition agent in the preparation process of corn ground rice of the present invention, need not to add sucrose, cost is low, and the corn ground rice of making uses hot water to reconstitute into rice and sticks with paste.Be applied to the suitability for industrialized production of corn ground rice, increase the market kind of baby rice powder.
The specific embodiment
The specific embodiment one: the method that present embodiment enzymolysis roller drying prepares corn ground rice follows these steps to realize: one, add the water that accounts for 3 times of corn quality in the corn after the removal of impurities, putting into colloid mill roughly grinds, wherein colloid mill mill body gap is 2mm, filter with 5 mesh sieve after corase grind and remove the corn skin, obtain the corn filter residue, then with the water that accounts for 1 times of corn quality, corn filter residue 10min is cleaned in concussion, again 2 μ m are transferred in colloid mill mill body gap, the fine grinding of the corn filter residue after cleaning obtains the corn filter pulp;
Two, the corn filter pulp is heated to 50 ℃, add the amylorrhexis 70～100min that accounts for corn filter pulp mass fraction 0.45%, then add the protease hydrolytic 110～150min that accounts for corn filter pulp mass fraction 0.64%, add the cellulase hydrolysis 4～7h that accounts for corn filter pulp mass fraction 0.6%, then be heated to 95 ℃ of enzyme 30min that go out, be cooled to room temperature, obtain corn slurry enzymolysis liquid;
Three, corn slurry enzymolysis liquid is added in homogenizer, at temperature 50 C, pressure is homogeneous under 15MPa, then put into Rotary Evaporators, heating-up temperature is 50 ℃ in water-bath, pressure is that under the condition of 0.095MPa, Vacuum Concentration is 10%～20% corn underflow to obtaining mass concentration, then adds the crosslinking agent that accounts for corn underflow mass fraction 15%～40%, obtains corn underflow A;
Four, with corn underflow A in adjunce copper with the temperature gelatinization 10～60min of 65 ℃～90 ℃, then join in the Materials hopper of steam roller drying machine, be 0.3～0.5MPa at steam pressure, drum rotation speed is that the condition bottom roll drying of 2 ~ 5r/min makes corn ground rice;
Wherein amylase activity described in step 2 is 20000U/g; Described proteinase activity is 100000U/g; Described cellulase activity is 20000U/g;
Crosslinking agent described in step 3 is waxy corn starch, glutinous corn powder or rice meal.
Corn described in the present embodiment step 1 is common commercially available corn, and the quality moisture content is 65%～75%.
Colloid mill described in the present embodiment step 1 is bought the logical mechanical Co., Ltd from the corridor.
Amylase described in the present embodiment step 2 is bought from Hefei Lan Xu Bioisystech Co., Ltd, and protease is bought from jade of the He family Bioisystech Co., Ltd, and cellulase is bought from jade of the He family Bioisystech Co., Ltd.
Crosslinking agent described in the present embodiment step 3 is waxy corn starch, glutinous corn powder or rice meal, and waxy corn starch and glutinous corn powder are bought from Heilongjiang Haotian Corn Development Co., Ltd..
Homogenizer described in the present embodiment step 3 is bought from east, Shanghai magnificent high pressure homogenizer factory.
Steam roller drying machine described in the present embodiment step 4 is bought from the Food Machinery Factory, Dongtai City.
The specific embodiment two: what present embodiment was different from the specific embodiment one is that step 2 adds the amylorrhexis 75～85min that accounts for corn filter pulp mass fraction 0.45%, then add the protease hydrolytic 120～140min that accounts for corn filter pulp mass fraction 0.64%, add the cellulase hydrolysis 4.5～6h that accounts for corn filter pulp mass fraction 0.6%.Other step and parameter are identical with the specific embodiment one.
The specific embodiment three: present embodiment is different from the specific embodiment one or two be the step 3 Vacuum Concentration is 12%～18% corn underflow to obtaining mass concentration, then adds the crosslinking agent that accounts for corn underflow mass fraction 18%～30%.Other step and parameter are identical with the specific embodiment one or two.
The specific embodiment four: present embodiment is different from the specific embodiment one or two be the step 3 Vacuum Concentration is 15% corn underflow to obtaining mass concentration, then adds the crosslinking agent that accounts for corn underflow mass fraction 25%.Other step and parameter are identical with the specific embodiment one or two.
The specific embodiment five: present embodiment is different from one of specific embodiment one to four be step 4 in adjunce copper with the temperature gelatinization 20～40min of 70 ℃～80 ℃.Other step and parameter are identical with one of specific embodiment one to four.
The specific embodiment six: what present embodiment was different from one of specific embodiment one to five is that step 4 is 0.35MPa at steam pressure, and drum rotation speed is that the condition bottom roll drying of 3r/min makes corn ground rice.Other step and parameter are identical with one of specific embodiment one to five.
The specific embodiment seven: the method that present embodiment enzymolysis roller drying prepares corn ground rice follows these steps to realize: one, add the water that accounts for 3 times of corn quality in the corn after the removal of impurities, putting into colloid mill roughly grinds, wherein colloid mill mill body gap is 2mm, filter with 5 mesh sieve after corase grind and remove the corn skin, obtain the corn filter residue, then with the water that accounts for 1 times of corn quality, corn filter residue 10min is cleaned in concussion, again 2 μ m are transferred in colloid mill mill body gap, the fine grinding of the corn filter residue after cleaning obtains the corn filter pulp;
Two, the corn filter pulp is heated to 50 ℃, add the amylorrhexis 89min that accounts for corn filter pulp mass fraction 0.45%, then add the protease hydrolytic 126min that accounts for corn filter pulp mass fraction 0.64%, add the cellulase hydrolysis 5.57h that accounts for corn filter pulp mass fraction 0.6%, then be heated to 95 ℃ of enzyme 30min that go out, be cooled to room temperature, obtain corn slurry enzymolysis liquid;
Three, corn slurry enzymolysis liquid is added in homogenizer, at temperature 50 C, pressure is homogeneous under 15MPa, then put into Rotary Evaporators, heating-up temperature is 50 ℃ in water-bath, pressure is that under the condition of 0.095MPa, Vacuum Concentration is 17% corn underflow to obtaining mass concentration, then adds the crosslinking agent that accounts for corn underflow mass fraction 25%, obtains corn underflow A;
Four, with corn underflow A in adjunce copper with the temperature gelatinization 30min of 85 ℃, then join in the Materials hopper of steam roller drying machine, be 0.5MPa at steam pressure, drum rotation speed is that the condition bottom roll drying of 2.5r/min makes corn ground rice;
Wherein the described corn of step 1 is common commercially available corn, and the quality moisture content is 72%;
Crosslinking agent described in step 3 is waxy corn starch.
Corn ground rice to the present embodiment preparation carries out water imbibition index (WAI) test, and method is as follows:
Take corn ground rice sample and 30mL distilled water mixing that 2.5g prepares, add in centrifuge tube, stir 1min with glass bar and make corn powder suspension.Corn powder suspension at 70 ℃ of lower water-bath 30min, is cooled to room temperature subsequently, and the centrifugal 20min of 3800r/min pours supernatant, sediment respectively in the evaporating dish of constant weight under 105 ℃ baking and to permanent quality, calculates leachable, sediment quality, utilizes formula:
The corn ground rice water imbibition index that obtains the present embodiment preparation is 5.3, wherein m
1The representative sample quality, m
2Represent the sediment quality.
Corn ground rice to the present embodiment preparation carries out sensory evaluation:
The corn ground rice of present embodiment preparation is taken the 15g sample, and to add temperature be 75 ℃, stirs 3min in the water of 100mL, asks 10 experienced professionals to form evaluation group, with reference to the subjective appreciation method of table 1, the organoleptic indicator of product marked.Adopt 9 minutes point systems processed, the weighted value of each index sees the following form, and by calculating the comprehensive acceptability of product, its value shows that more greatly the organoleptic quality of product is better; The corn ground rice sensory evaluation scores of present embodiment preparation as a result is 8.75.
Table 1 corn ground rice subjective appreciation
Claims (4)
1. the enzymolysis roller drying prepares the method for corn ground rice, it is characterized in that the enzymolysis roller drying prepare corn ground rice method carry out according to the following steps:
One, add the water that accounts for 3 times of corn quality in the corn after the removal of impurities, putting into colloid mill roughly grinds, wherein colloid mill mill body gap is 2mm, filter with 5 mesh sieve after corase grind and remove the corn skin, obtain the corn filter residue, then with the water that accounts for 1 times of corn quality, corn filter residue 10min is cleaned in concussion, again 2 μ m are transferred in colloid mill mill body gap, the fine grinding of the corn filter residue after cleaning obtains the corn filter pulp;
Two, the corn filter pulp is heated to 50 ℃, add the amylorrhexis 75～85min that accounts for corn filter pulp mass fraction 0.45%, then add the protease hydrolytic 120～140min that accounts for corn filter pulp mass fraction 0.64%, add the cellulase hydrolysis 4.5～6h that accounts for corn filter pulp mass fraction 0.6%, then be heated to 95 ℃ of enzyme 30min that go out, be cooled to room temperature, obtain corn slurry enzymolysis liquid;
Three, corn slurry enzymolysis liquid is added in homogenizer, at temperature 50 C, pressure is homogeneous under 15MPa, then put into Rotary Evaporators, heating-up temperature is 50 ℃ in water-bath, pressure is that under the condition of 0.095MPa, Vacuum Concentration is 10%～20% corn underflow to obtaining mass concentration, then adds the crosslinking agent that accounts for corn underflow mass fraction 15%～40%, obtains corn underflow A;
Four, with corn underflow A in adjunce copper with the temperature gelatinization 10～60min of 65 ℃～90 ℃, then join in the Materials hopper of steam roller drying machine, be 0.3～0.5MPa at steam pressure, drum rotation speed is that the condition bottom roll drying of 2 ~ 5r/min makes corn ground rice;
Wherein amylase activity described in step 2 is 20000U/g; Described proteinase activity is 100000U/g; Described cellulase activity is 20000U/g;
Crosslinking agent described in step 3 is waxy corn starch.
2. enzymolysis roller drying according to claim 1 prepares the method for corn ground rice, it is characterized in that the step 3 Vacuum Concentration is 12%～18% corn underflow to obtaining mass concentration, then adds the crosslinking agent that accounts for corn underflow mass fraction 18%～30%.
3. enzymolysis roller drying according to claim 2 prepares the method for corn ground rice, it is characterized in that step 4 in adjunce copper with the temperature gelatinization 20～40min of 70 ℃～80 ℃.
4. enzymolysis roller drying according to claim 3 prepares the method for corn ground rice, it is characterized in that step 4 is 0.35MPa at steam pressure, and drum rotation speed is that the condition bottom roll drying of 3r/min makes corn ground rice.
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| CN114073292A (en) * | 2020-08-13 | 2022-02-22 | 黑龙江省北大荒绿色健康食品有限责任公司 | Method for preparing nutritional functional corn juice powder |
| CN114680317B (en) * | 2020-12-28 | 2024-01-26 | 内蒙古蒙牛乳业（集团）股份有限公司 | Milk corn thick soup and preparation method thereof |
| CN113142495A (en) * | 2021-04-20 | 2021-07-23 | 安徽科技学院 | Preparation method of functional compound mixing powder |
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| CN1093238A (en) * | 1993-04-06 | 1994-10-12 | 余伟秀 | A kind of prescription of baby's ground rice and preparation method |
| CN1115608A (en) * | 1994-07-29 | 1996-01-31 | 玉环县海生食品有限公司 | Mutritive infant rice flour with fish protein |
| CN1165633A (en) * | 1997-04-24 | 1997-11-26 | 柏林 | Auxiliary nutritious foods for weaning baby |
| CN1356059A (en) * | 2001-09-12 | 2002-07-03 | 汕头大学 | Liquefied nutritive rice flour for baby and its preparing process |
| CN1428094A (en) * | 2001-12-25 | 2003-07-09 | 刘学兰 | Ultramicron aloe corn nutrient powder |
| CN101326978A (en) * | 2008-07-22 | 2008-12-24 | 浙江李子园牛奶食品有限公司 | Infantile nutrition maize flour and preparation thereof |
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