CN109601995A - A kind of pure natural purple sweet potato starch and its production technology - Google Patents
A kind of pure natural purple sweet potato starch and its production technology Download PDFInfo
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- CN109601995A CN109601995A CN201811375278.1A CN201811375278A CN109601995A CN 109601995 A CN109601995 A CN 109601995A CN 201811375278 A CN201811375278 A CN 201811375278A CN 109601995 A CN109601995 A CN 109601995A
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- China
- Prior art keywords
- sweet potato
- purple sweet
- starch
- semen armeniacae
- armeniacae amarae
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- 235000002678 Ipomoea batatas Nutrition 0.000 title claims abstract description 178
- 229920001592 potato starch Polymers 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 38
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Classifications
-
- 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
- A23L29/00—Foods or foodstuffs containing additives; Preparation or treatment thereof
- A23L29/30—Foods or foodstuffs containing additives; Preparation or treatment thereof containing carbohydrate syrups; containing sugars; containing sugar alcohols, e.g. xylitol; containing starch hydrolysates, e.g. dextrin
-
- 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
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/10—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
-
- 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
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/20—Reducing nutritive value; Dietetic products with reduced nutritive value
- A23L33/21—Addition of substantially indigestible substances, e.g. dietary fibres
- A23L33/22—Comminuted fibrous parts of plants, e.g. bagasse or pulp
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B30/00—Preparation of starch, degraded or non-chemically modified starch, amylose, or amylopectin
- C08B30/04—Extraction or purification
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Polymers & Plastics (AREA)
- Food Science & Technology (AREA)
- Nutrition Science (AREA)
- Mycology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Biochemistry (AREA)
- Botany (AREA)
- Cosmetics (AREA)
- Preparation Of Fruits And Vegetables (AREA)
Abstract
The invention discloses a kind of pure natural purple sweet potato starch and its production technologies, are related to food processing technology field.5~6 parts of semen armeniacae amarae skin powder made from the purple sweet potato starch 85~90 parts of the purple sweet potato starch made from purple sweet potato and semen armeniacae amarae skin by weight is constituted；Preparation method is comprising steps of purple sweet potato selection → purple sweet potato fibrosis → free starch screening → purple sweet potato Slag treatment → semen armeniacae amarae skin powder produces → mixture → vacuum packaging.Pure natural purple sweet potato starch trophic structure proportion of the invention is scientific and reasonable, is equipped with semen armeniacae amarae skin powder, contains various active substance, the additives such as preservative free, it is a kind of pure natural green and healthy food, preparation method of the invention can be put to mechanical mass production, form industrialization.
Description
Technical field
The present invention relates to food processing fields, and in particular to a kind of pure natural purple sweet potato starch and its production technology.
Background technique
Purple sweet potato is rich in protein, starch, pectin, cellulose, amino acid, vitamin and several mineral materials, while being also rich in
Selenium element and anthocyanidin.The purple sweet potato special healthcare function of tool full of nutrition, gal4 amino acid therein is all easily to be disappeared by human body
Change and absorb.The vitamin A being wherein rich in can improve the mucomembranous epithelial cell of eyesight and skin, and vitamin C can make glue first
Protein normal synthesis, prevents and treats scorbutic generation, anthocyanidin is natural potent free radical scavenger.Nutrition with common purple sweet potato
Outside ingredient, it is also rich in selenium element, ferro element and anthocyanidin.In the anticancer vegetables that Japanese national vegetables Cancer Research Center is announced
It ranks first.In addition, purple sweet potato can also remove the peel dries pulverizing post-processing into powder, and it is in beautiful color, it is full of nutrition, it is that fabulous food adds
Work raw material can be used as the major ingredient or ingredient of various cakes.Purple purple sweet potato will also become one of the primary raw material of anthocyanidin simultaneously.Purple sweet potato
From stem apex tender leaf to potato wedge, certain health care functions are all had, are current food nuisanceless, in green and organic foods.
Summary of the invention
The present invention provides a kind of pure natural purple sweet potato starch and its production technology.
The present invention realizes that technical solution used by above-mentioned technical effect is:
A kind of pure natural purple sweet potato starch, the purple sweet potato starch 85~90 parts of the purple sweet potato starch as made from purple sweet potato by weight
And 5~6 parts of semen armeniacae amarae skin powder made from semen armeniacae amarae skin is constituted.
Further, the purple sweet potato described in above-mentioned pure natural purple sweet potato starch is selected from the purple sweet potato that kind is " purple sweet potato 135 ".
Further, the production method of above-mentioned pure natural purple sweet potato starch, production method include the following steps:
1) purple sweet potato selection: selecting this season purple sweet potato of fresh no disease and pests harm, cleans epidermis dirt, then removes epidermis, removes
When epidermis, then the pulp to expose purple sweet potato is directly lost the purple sweet potato for eliminating epidermis without rinsing as criterion of acceptability
Enter and impregnated in the first precipitation cylinder equipped with pure water 2~3 hours, being added in the first precipitation cylinder has citric acid, pure for adjusting
The pH value of water is 4.1~4.3；
2) purple sweet potato fibrosis: the starch sediment that precipitating is sucked out in cylinder bottom is precipitated from first, then takes in step 1) and impregnates
Good peeling purple sweet potato is dug with the wood wool making machine equipped with ceramic roller knife made of nano zircite into filament；
3) free starch sieves: the purple sweet potato filament of plane system in step 2) is gone to the food-grade PP mistake that mesh number is 30~40 mesh
In strainer, the lower section setting multilayer mesh number of food-grade PP filter screen is the filtering gauze of 40~50 mesh, and is 0.85m with flow velocity3/
The pure water of h is rinsed, and using the effect of washing away of water, free starch particle is stripped out, and then feeding grade PP is filtered
The secondary purple sweet potato in primary purple sweet potato and filtering gauze isolated in net is placed in filtering gauze to be washed away 3 times again, is obtained
Filtered filtered fluid is sieved, the shallow lake that cylinder bottom is sucked out then is precipitated from first with the step 2) in the filtered fluid after screening
The mixing of powder sediment, is then blended into the pure water of 1:12, and food grade phosphoric acid is added or citric acid, tartaric acid solution adjust slurries, adjusts
The pH value of whole enzymolysis liquid took bottom sediment lotion to be concentrated, and then carried out air-flow and spray quick-fried drying to 5.0 standing 2~3 hours,
Starch is made；
4) purple sweet potato Slag treatment: primary purple sweet potato and secondary purple sweet potato in step 3) are taken, pure water is added and is mixed, then
Potato dreg slurry is added in high-speed shearing machine and carries out homogeneous shearing, the homogeneous potato dreg slurry after taking shearing is blended into the pure of 1:10
Water, the pH value that then addition food grade phosphoric acid or citric acid, tartaric acid solution adjust potato dreg slurry add suitable α-to 6.8
Amylase to above-mentioned pH value be 6.8 slurries in, be warming up to 80~85 DEG C digest 2~3 hours, then make its be cooled to 55 DEG C ±
5%, the pH value of slurries is adjusted to 5.5 with food grade phosphoric acid or citric acid, tartaric acid solution, and protease is added under heat-retaining condition and carries out
Enzymatic hydrolysis digests completely rear enzyme deactivation and filters, obtains enzymolysis liquid and Production With Residue of Enzymatic Hydrolysis, and it is 150~180 purposes that Production With Residue of Enzymatic Hydrolysis, which is then carried out mesh number,
Ultra-fine grinding crushes laggard promoting the circulation of qi stream and sprays quick-fried drying, insoluble dietary fiber powder is made；Then food is added in enzymolysis liquid
Grade phosphoric acid or citric acid, tartaric acid solution adjust slurries, adjust the pH value of enzymolysis liquid to 5.0 standing 2 hours, supernatant is taken to carry out
Concentration, then into the supernatant of concentration, 85% ethyl alcohol of 6 times of volumes of addition alcohol under the conditions of 65 DEG C of temperature is analysed 2~3 days,
After separation of solid and liquid, taking precipitate carries out the ultra-fine grinding that mesh number is 150~180 mesh, crushes laggard promoting the circulation of qi stream and sprays quick-fried drying, system
Soluble dietary fiber powder is obtained, insoluble dietary fiber powder obtained and obtained soluble dietary fiber powder are separately dried and are deposited
Storage；
5) semen armeniacae amarae skin powder is produced, and the semen armeniacae amarae skin of dehydration is taken to be ground into the semen armeniacae amarae skin that mesh number is 200 mesh with pulverizer
Powder, semen armeniacae amarae skin powder is placed in 0.1% citric acid solution in ultramicro grinding to be impregnated 8 hours, and soaking temperature is maintained at 70 DEG C, hardship
The control of the material-water ratio of almond peel powder and citric acid solution carries out detoxification in 1:18, by the immersion of citric acid solution, removes bitter apricot
The amarogentin of benevolence Pi Fenzhong；
6) mixed, take step 3) to be uniformly mixed with purple sweet potato starch and semen armeniacae amarae skin powder obtained in step 5) and pass through air-flow
Spray quick-fried drying；
7) it is vacuum-packed, the powder after mixture is sterilized, is then packed according to 500 grams/bag of specification.
Further, in the production method of above-mentioned pure natural purple sweet potato starch, in the step 4), the high speed is cut
The knife grit number for cutting machine is 150 mesh, and homogenization pressure is 40~45MPa.
Further, in the production method of above-mentioned pure natural purple sweet potato starch, in the step 4), alpha-amylase
Additive amount is 120~130U/g purple sweet potato, and the additive amount of protease is 20~26U/g purple sweet potato.
Further, in the production method of above-mentioned pure natural purple sweet potato starch, in the step 4), the enzyme deactivation
It is to complete for water-bath 1~1.5 hour under 78~80 DEG C of water bath.
Further, in the production method of above-mentioned pure natural purple sweet potato starch, in the step 4), air-flow spray is quick-fried dry
Temperature when dry is 180~185 DEG C, and the air-flow spray quick-fried duration is 20 seconds.
Further, in the production method of above-mentioned pure natural purple sweet potato starch, in the step 6), air-flow spray is quick-fried dry
Temperature when dry is 230~235 DEG C, and the air-flow spray quick-fried duration is 6 seconds.
The invention has the benefit that purple sweet potato starch trophic structure proportion of the invention is scientific and reasonable, and in preparation process, choosing
It uses fresh purple sweet potato as processing raw material, shortening processing is not carried out to purple sweet potato in advance, the inner molecular structure of starch is not by shadow
It rings, then using the physics screening removing highest free starch particle of content accounting.It is also synchronous to extract during producing starch
Dietary fiber, improves the utilization rate of purple sweet potato.The semen armeniacae amarae skin powder of addition contains multiple beneficial in the active material of human body, makees
For a kind of active constituent with health care function, its healthy nutritive value is substantially increased.In addition, the Polyphenols in semen armeniacae amarae powder
Compound has high anti-oxidation ability, in prevention coronary heart disease, improve blood lipid and it is anti-inflammatory while, also protected with anti-oxidation chemistry
Shield effect carries out anti-oxidation protection to the active material in purple sweet potato starch, is a kind of pure natural green and healthy food.
Specific embodiment
To make to make the present invention further understanding, the present invention is further explained in the light of specific embodiments:
Embodiment 1:
A kind of pure natural purple sweet potato dietary fiber, by weight 85 parts of the purple sweet potato starch and semen armeniacae amarae as made from purple sweet potato
5 parts of semen armeniacae amarae skin powder made from skin is constituted.Preferably as one kind of the invention, it is " purple sweet potato 135 " which, which is selected from kind,
Purple sweet potato, purple sweet potato 135 are the purple sweet potato excellent variety of the newest introduction in new agriculture potato industry center.Its leaf shallowly splits singly is incised, petiole vein
Full green, 1 meter or so of climing length, blooms, the long spindle of potato shape, potato skin is smooth, and purple black light is bright, potato meat darkviolet once in a while.Potato wedge is disconnected
Purple slurries are flowed out after opening, being wiped with hand one by hand purple, is the best kind for extracting mauve pigment immediately.It is purple black after ripe
Color, fragrant and sweet face is husky, and food flavor is splendid, is rich in cancer-resisting substance selenium, the elements such as iodine, and it is town and country that nutritional ingredient, which is higher than several times of other pachyrhizuses,
The first-class health food of resident and hotel.General per mu yield: 4000~5000 jin of spring potato, 3000 jin of summer potato or so, than beauty
The black potato volume increase 50%~100% of state, is 2~3 times of Japanese river mountain purple yield.Its disease resistance is strong, shelf-stable, germinating good, out
Seedling amount is high.Semen armeniacae amarae skin is rich in functional components such as polyphenol compound, melanin, amarogentins, additionally containing a large amount of
The functional dietary fibers such as cellulose, hemicellulose, lignin.Polyphenol compound has high anti-oxidation ability, can prevent
Coronary heart disease improves blood lipid, reduces cell Proliferation, and have the function of anti-inflammatory and chemoproection.Total phenol content accounts in almond peel
The 70%~100% of entire almond, which can cooperate with vitamin E and vitamin C, hinder low density cholesterol
Synthesis, thus the effect of reaching reducing blood lipid.Semen armeniacae amarae skin powder ultramicro grinding be placed in 0.1% citric acid solution impregnate it is 8 small
When, soaking temperature is maintained at 70 DEG C, and the material-water ratio of semen armeniacae amarae Pi Fenyu citric acid solution is controlled in 1:18, passes through citric acid solution
Immersion carry out detoxification, remove semen armeniacae amarae Pi Fenzhong amarogentin.
Further, the invention also provides the production method for making above-mentioned pure natural purple sweet potato starch, the production methods
Include the following steps:
1) purple sweet potato selection: the kind for selecting fresh no disease and pests harm is this season purple sweet potato of " purple sweet potato 135 ", and the purple sweet potato of selection is washed
Net epidermis dirt, then removes epidermis.When removing epidermis, then the pulp to expose purple sweet potato will be gone as criterion of acceptability
In addition to the purple sweet potato of epidermis is without rinsing, directly loses in the first precipitation cylinder equipped with pure water and impregnate 3 hours.First is precipitated in cylinder
Addition has citric acid, and the pH value for adjusting pure water is 4.3, from peeling purple sweet potato meat surface it is free go out free starch the
The starch milk formed in the pure water of one precipitation cylinder is easily formed precipitated and separated in the case where pH value is 4.3 slurry environments.Slurries
PH value and the precipitating of starch have substantial connection, if pH value is excessive, starch is not easy to precipitate, and starch is unclear with supernatant separation.
After impregnating 3 hours, the starch emulsion that precipitating is sucked out in the cylinder bottom that cylinder is precipitated from first is spare.
2) purple sweet potato fibrosis: soaked peeling purple sweet potato in step 1) is taken, with equipped with ceramics made of nano zircite
At filament, which may be selected model TY-1800 type and is crushed type, suitable power 7.5KW, main shaft the wood wool making machine plane of roller knife
Revolving speed 2200r/min, 1800 kgs/hour of production efficiency, water consumption 0.85m3/h.Plane silk is completed by ceramic roller knife, ceramic material
Matter can be to avoid metallic pollution, while the sharp ceramic knife edge can dig purple sweet potato at thin and thin purple sweet potato fiber filament, then pass through
The included waterworks of wood wool making machine are washed by water into plane cabinet and filtration system, using the effect of washing away of water, will be formed sediment on purple sweet potato fiber
Powder particle is stripped out, and then separates starch slurry by filter screen, is discharged from respective outlet.The plane bolting silk of purple sweet potato divides
A crucial step, it is related to the flour extraction of fresh sweet potato and the quality of starch, and flour extraction is higher, and the starch extraction rate of purple sweet potato is also got over
The quantum of output of height, starch is more.By making the cell rupture of fresh sweet potato as much as possible, more free starch particles are released, easily
In separation.The meticulous starch that is unfavorable for of purple potato skin slag is separated with other compositions, and increases the difficulty of separation fine slag.So selecting
When size degradation fresh sweet potato, the cutter of selection bistrique formula is avoided, it can be thin skin sizing comminution, blocks filter screen, reduces the removing of starch
And separation.
3) free starch sieves: the purple sweet potato filament of plane system in step 2) is gone to the food-grade PP filter screen that mesh number is 40 mesh
In, the lower section setting multilayer mesh number of food-grade PP filter screen is the filtering gauze of 50 mesh, and is 0.85m with flow velocity3/ h's is pure
Water is rinsed, and using the effect of washing away of water, free starch particle is stripped out, and is then separated in feeding grade PP filter screen
The secondary potato slag in primary potato slag and filtering gauze out is placed in filtering gauze to be washed away 3 times again, obtains sieving filtered
Then filtered fluid mixes the filtered fluid after screening with the starch sediment that the suction of cylinder bottom is precipitated from first in the step 2)
It closes, is then blended into the pure water of 1:12, food grade phosphoric acid is added or citric acid, tartaric acid solution adjust slurries, adjusts enzymolysis liquid
PH value took bottom sediment lotion to be concentrated, and then carried out air-flow and spray quick-fried drying, purple sweet potato starch is made to 5.0 standing 3 hours.
4) purple sweet potato Slag treatment: primary purple sweet potato and secondary purple sweet potato in step 3) are taken, pure water is added and is mixed, then
Potato dreg slurry is added in high-speed shearing machine and carries out homogeneous shearing.After potato dreg slurry is in the machine cavity for entering high-speed shearing machine, warp
Multiple shear surfaces are crossed, the multiple comprehensive functions such as thousands of secondary intensive shears, shock, grinding, hole is generated, potato slag is made to reach significant
Wet method super-fine effect, equipment are directed to skin slag class soft fiber, in stator and rotor sructure arrangement, draw external controlled ultra-fine cutting and set
Standby design concept provides powerful mechanical shearing ability using the linear velocity of superelevation, carries out shearing-crushing to fibre material, in addition
Achieve the purpose that ultramicro grinding by the knife sieve backlash for designing different to control the fineness of pulverized material.Of the invention excellent
It selects in embodiment, selecting the knife grit number being equipped with for the high-speed shearing machine is 150 mesh, homogenization pressure 45MPa, the fiber produced
Powder Particle Size is moderate.Homogeneous potato dreg slurry after taking shearing is blended into the pure water of 1:10, be then added food grade phosphoric acid or citric acid,
Tartaric acid solution adjusts the pH value of potato dreg slurry to 6.8, adds in the slurries that suitable alpha-amylase is 6.8 to above-mentioned pH value,
It is warming up to 85 DEG C to digest 2 hours, so that the combination starch in potato slag is digested.Then slurries are made to be cooled to 55 DEG C ± 5%, with food
Grade phosphoric acid or citric acid, tartaric acid solution adjust the pH value of slurries to 5.5, and protease is added under heat-retaining condition and is digested.?
In the preferred embodiment of the present invention, the additive amount of alpha-amylase is 130U/g potato slag, and the additive amount of protease is 26U/g potato slag.
The completely rear enzyme deactivation of enzymatic hydrolysis is simultaneously filtered, and enzymolysis liquid and Production With Residue of Enzymatic Hydrolysis are obtained, and enzyme deactivation is to complete for water-bath 1 hour under 80 DEG C of water bath.
Then Production With Residue of Enzymatic Hydrolysis is subjected to the ultra-fine grinding that mesh number is 150 mesh, crushes laggard promoting the circulation of qi stream and spray quick-fried drying, insolubility meals is made
Fiber powder is eaten, insoluble dietary fiber powder obtained and obtained soluble dietary fiber powder are separately dried storage.Air-flow spray
Quick-fried drying equipment selects the large-scale air-flow of the model CY of southern exposure Food Machinery Co., Ltd. to spray quick-fried machine, when air-flow sprays quick-fried dry
Temperature is 185 DEG C, and the air-flow spray quick-fried duration is 20 seconds.
5) semen armeniacae amarae skin powder is produced, and the semen armeniacae amarae skin of dehydration is taken to be ground into the semen armeniacae amarae skin that mesh number is 200 mesh with pulverizer
Powder.Semen armeniacae amarae skin powder is placed in 0.1% citric acid solution in ultramicro grinding to be impregnated 8 hours, and soaking temperature is maintained at 70 DEG C, hardship
The control of the material-water ratio of almond peel powder and citric acid solution carries out detoxification in 1:18, by the immersion of citric acid solution, removes bitter apricot
The amarogentin of benevolence Pi Fenzhong.
6) mixed, take step 3) to be uniformly mixed with purple sweet potato starch and semen armeniacae amarae skin powder obtained in step 5) and pass through air-flow
Spray quick-fried drying.In the mixed process of step 6), temperature when air-flow sprays quick-fried dry is 235 DEG C, and the air-flow spray quick-fried duration is 6
Second.
7) it is vacuum-packed, the powder after mixture is sterilized, is then packed according to 500 grams/bag of specification.
Embodiment 2:
A kind of pure natural purple sweet potato dietary fiber, by weight 87 parts of the purple sweet potato starch and semen armeniacae amarae as made from purple sweet potato
6 parts of semen armeniacae amarae skin powder made from skin is constituted.Preferably as one kind of the invention, it is " purple sweet potato 135 " which, which is selected from kind,
Purple sweet potato, purple sweet potato 135 are the purple sweet potato excellent variety of the newest introduction in new agriculture potato industry center.Its leaf shallowly splits singly is incised, petiole vein
Full green, 1 meter or so of climing length, blooms, the long spindle of potato shape, potato skin is smooth, and purple black light is bright, potato meat darkviolet once in a while.Potato wedge is disconnected
Purple slurries are flowed out after opening, being wiped with hand one by hand purple, is the best kind for extracting mauve pigment immediately.It is purple black after ripe
Color, fragrant and sweet face is husky, and food flavor is splendid, is rich in cancer-resisting substance selenium, the elements such as iodine, and it is town and country that nutritional ingredient, which is higher than several times of other pachyrhizuses,
The first-class health food of resident and hotel.General per mu yield: 4000~5000 jin of spring potato, 3000 jin of summer potato or so, than beauty
The black potato volume increase 50%~100% of state, is 2~3 times of Japanese river mountain purple yield.Its disease resistance is strong, shelf-stable, germinating good, out
Seedling amount is high.Semen armeniacae amarae skin is rich in functional components such as polyphenol compound, melanin, amarogentins, additionally containing a large amount of
The functional dietary fibers such as cellulose, hemicellulose, lignin.Polyphenol compound has high anti-oxidation ability, can prevent
Coronary heart disease improves blood lipid, reduces cell Proliferation, and have the function of anti-inflammatory and chemoproection.Total phenol content accounts in almond peel
The 70%~100% of entire almond, which can cooperate with vitamin E and vitamin C, hinder low density cholesterol
Synthesis, thus the effect of reaching reducing blood lipid.Semen armeniacae amarae skin powder ultramicro grinding be placed in 0.1% citric acid solution impregnate it is 8 small
When, soaking temperature is maintained at 70 DEG C, and the material-water ratio of semen armeniacae amarae Pi Fenyu citric acid solution is controlled in 1:18, passes through citric acid solution
Immersion carry out detoxification, remove semen armeniacae amarae Pi Fenzhong amarogentin.
Further, the invention also provides the production method for making above-mentioned pure natural purple sweet potato starch, the production methods
Include the following steps:
1) purple sweet potato selection: the kind for selecting fresh no disease and pests harm is this season purple sweet potato of " purple sweet potato 135 ", and the purple sweet potato of selection is washed
Net epidermis dirt, then removes epidermis.When removing epidermis, then the pulp to expose purple sweet potato will be gone as criterion of acceptability
In addition to the purple sweet potato of epidermis is without rinsing, directly loses in the first precipitation cylinder equipped with pure water and impregnate 2.5 hours.First is precipitated cylinder
Middle addition has citric acid, and the pH value for adjusting pure water is 4.2, and from peeling purple sweet potato meat surface, free free starch out exists
The starch milk formed in the pure water of first precipitation cylinder is easily formed precipitated and separated in the case where pH value is 4.2 slurry environments.Slurries
PH value and the precipitating of starch have substantial connection, if pH value is excessive, starch is not easy to precipitate, and starch and supernatant separation are not
Clearly.After impregnating 2.5 hours, the starch emulsion that precipitating is sucked out in the cylinder bottom that cylinder is precipitated from first is spare.
2) purple sweet potato fibrosis: soaked peeling purple sweet potato in step 1) is taken, with equipped with ceramics made of nano zircite
At filament, which may be selected model TY-1800 type and is crushed type, suitable power 7.5KW, main shaft the wood wool making machine plane of roller knife
Revolving speed 2200r/min, 1800 kgs/hour of production efficiency, water consumption 0.85m3/h.Plane silk is completed by ceramic roller knife, ceramic material
Matter can be to avoid metallic pollution, while the sharp ceramic knife edge can dig purple sweet potato at thin and thin purple sweet potato fiber filament, then pass through
The included waterworks of wood wool making machine are washed by water into plane cabinet and filtration system, using the effect of washing away of water, will be formed sediment on purple sweet potato fiber
Powder particle is stripped out, and then separates starch slurry by filter screen, is discharged from respective outlet.The plane bolting silk of purple sweet potato divides
A crucial step, it is related to the flour extraction of fresh sweet potato and the quality of starch, and flour extraction is higher, and the starch extraction rate of purple sweet potato is also got over
The quantum of output of height, starch is more.By making the cell rupture of fresh sweet potato as much as possible, more free starch particles are released, easily
In separation.The meticulous starch that is unfavorable for of purple potato skin slag is separated with other compositions, and increases the difficulty of separation fine slag.So selecting
When size degradation fresh sweet potato, the cutter of selection bistrique formula is avoided, it can be thin skin sizing comminution, blocks filter screen, reduces the removing of starch
And separation.
3) free starch sieves: the purple sweet potato filament of plane system in step 2) is gone to the food-grade PP filter screen that mesh number is 40 mesh
In, the lower section setting multilayer mesh number of food-grade PP filter screen is the filtering gauze of 45 mesh, and is 0.85m with flow velocity3/ h's is pure
Water is rinsed, and using the effect of washing away of water, free starch particle is stripped out, and is then separated in feeding grade PP filter screen
The secondary potato slag in primary potato slag and filtering gauze out is placed in filtering gauze to be washed away 3 times again, obtains sieving filtered
Then filtered fluid mixes the filtered fluid after screening with the starch sediment that the suction of cylinder bottom is precipitated from first in the step 2)
It closes, is then blended into the pure water of 1:12, food grade phosphoric acid is added or citric acid, tartaric acid solution adjust slurries, adjusts enzymolysis liquid
PH value took bottom sediment lotion to be concentrated, and then carried out air-flow and spray quick-fried drying, purple sweet potato is made and forms sediment to 5.0 standing 2.5 hours
Powder.
4) purple sweet potato Slag treatment: primary purple sweet potato and secondary purple sweet potato in step 3) are taken, pure water is added and is mixed, then
Potato dreg slurry is added in high-speed shearing machine and carries out homogeneous shearing.After potato dreg slurry is in the machine cavity for entering high-speed shearing machine, warp
Multiple shear surfaces are crossed, the multiple comprehensive functions such as thousands of secondary intensive shears, shock, grinding, hole is generated, potato slag is made to reach significant
Wet method super-fine effect, equipment are directed to skin slag class soft fiber, in stator and rotor sructure arrangement, draw external controlled ultra-fine cutting and set
Standby design concept provides powerful mechanical shearing ability using the linear velocity of superelevation, carries out shearing-crushing to fibre material, in addition
Achieve the purpose that ultramicro grinding by the knife sieve backlash for designing different to control the fineness of pulverized material.Of the invention excellent
It selects in embodiment, selecting the knife grit number being equipped with for the high-speed shearing machine is 150 mesh, homogenization pressure 40MPa, the fiber produced
Powder Particle Size is moderate.Homogeneous potato dreg slurry after taking shearing is blended into the pure water of 1:10, be then added food grade phosphoric acid or citric acid,
Tartaric acid solution adjusts the pH value of potato dreg slurry to 6.8, adds in the slurries that suitable alpha-amylase is 6.8 to above-mentioned pH value,
It is warming up to 80 DEG C to digest 3 hours, so that the combination starch in potato slag is digested.Then slurries are made to be cooled to 55 DEG C ± 5%, with food
Grade phosphoric acid or citric acid, tartaric acid solution adjust the pH value of slurries to 5.5, and protease is added under heat-retaining condition and is digested.?
In the preferred embodiment of the present invention, the additive amount of alpha-amylase is 125U/g potato slag, and the additive amount of protease is 20U/g potato slag.
Enzymatic hydrolysis completely after enzyme deactivation simultaneously filter, obtain enzymolysis liquid and Production With Residue of Enzymatic Hydrolysis, enzyme deactivation be under 79 DEG C of water bath water-bath 1.5 hours it is complete
At.Then Production With Residue of Enzymatic Hydrolysis is subjected to the ultra-fine grinding that mesh number is 150 mesh, crushes laggard promoting the circulation of qi stream and spray quick-fried drying, is made insoluble
Property food fibre powder, is separately dried storage for insoluble dietary fiber powder obtained and obtained soluble dietary fiber powder.Gas
Stream, which sprays quick-fried drying equipment, selects the large-scale air-flow of the model CY of southern exposure Food Machinery Co., Ltd. to spray quick-fried machine, and air-flow sprays quick-fried drying
When temperature be 180 DEG C, it is 20 seconds that air-flow, which sprays quick-fried duration,.
5) semen armeniacae amarae skin powder is produced, and the semen armeniacae amarae skin of dehydration is taken to be ground into the semen armeniacae amarae skin that mesh number is 200 mesh with pulverizer
Powder.Semen armeniacae amarae skin powder is placed in 0.1% citric acid solution in ultramicro grinding to be impregnated 8 hours, and soaking temperature is maintained at 70 DEG C, hardship
The control of the material-water ratio of almond peel powder and citric acid solution carries out detoxification in 1:18, by the immersion of citric acid solution, removes bitter apricot
The amarogentin of benevolence Pi Fenzhong.
6) mixed, take step 3) to be uniformly mixed with purple sweet potato starch and semen armeniacae amarae skin powder obtained in step 5) and pass through air-flow
Spray quick-fried drying.In the mixed process of step 6), temperature when air-flow sprays quick-fried dry is 230 DEG C, and the air-flow spray quick-fried duration is 6
Second.
7) it is vacuum-packed, the powder after mixture is sterilized, is then packed according to 500 grams/bag of specification.
Embodiment 3:
A kind of pure natural purple sweet potato dietary fiber, by weight 90 parts of the purple sweet potato starch and semen armeniacae amarae as made from purple sweet potato
6 parts of semen armeniacae amarae skin powder made from skin is constituted.Preferably as one kind of the invention, it is " purple sweet potato 135 " which, which is selected from kind,
Purple sweet potato, purple sweet potato 135 are the purple sweet potato excellent variety of the newest introduction in new agriculture potato industry center.Its leaf shallowly splits singly is incised, petiole vein
Full green, 1 meter or so of climing length, blooms, the long spindle of potato shape, potato skin is smooth, and purple black light is bright, potato meat darkviolet once in a while.Potato wedge is disconnected
Purple slurries are flowed out after opening, being wiped with hand one by hand purple, is the best kind for extracting mauve pigment immediately.It is purple black after ripe
Color, fragrant and sweet face is husky, and food flavor is splendid, is rich in cancer-resisting substance selenium, the elements such as iodine, and it is town and country that nutritional ingredient, which is higher than several times of other pachyrhizuses,
The first-class health food of resident and hotel.General per mu yield: 4000~5000 jin of spring potato, 3000 jin of summer potato or so, than beauty
The black potato volume increase 50%~100% of state, is 2~3 times of Japanese river mountain purple yield.Its disease resistance is strong, shelf-stable, germinating good, out
Seedling amount is high.Semen armeniacae amarae skin is rich in functional components such as polyphenol compound, melanin, amarogentins, additionally containing a large amount of
The functional dietary fibers such as cellulose, hemicellulose, lignin.Polyphenol compound has high anti-oxidation ability, can prevent
Coronary heart disease improves blood lipid, reduces cell Proliferation, and have the function of anti-inflammatory and chemoproection.Total phenol content accounts in almond peel
The 70%~100% of entire almond, which can cooperate with vitamin E and vitamin C, hinder low density cholesterol
Synthesis, thus the effect of reaching reducing blood lipid.Semen armeniacae amarae skin powder ultramicro grinding be placed in 0.1% citric acid solution impregnate it is 8 small
When, soaking temperature is maintained at 70 DEG C, and the material-water ratio of semen armeniacae amarae Pi Fenyu citric acid solution is controlled in 1:18, passes through citric acid solution
Immersion carry out detoxification, remove semen armeniacae amarae Pi Fenzhong amarogentin.
Further, the invention also provides the production method for making above-mentioned pure natural purple sweet potato starch, the production methods
Include the following steps:
1) purple sweet potato selection: the kind for selecting fresh no disease and pests harm is this season purple sweet potato of " purple sweet potato 135 ", and the purple sweet potato of selection is washed
Net epidermis dirt, then removes epidermis.When removing epidermis, then the pulp to expose purple sweet potato will be gone as criterion of acceptability
In addition to the purple sweet potato of epidermis is without rinsing, directly loses in the first precipitation cylinder equipped with pure water and impregnate 2 hours.First is precipitated in cylinder
Addition has citric acid, and the pH value for adjusting pure water is 4.1, from peeling purple sweet potato meat surface it is free go out free starch the
The starch milk formed in the pure water of one precipitation cylinder is easily formed precipitated and separated in the case where pH value is 4.1 slurry environments.Slurries
PH value and the precipitating of starch have substantial connection, if pH value is excessive, starch is not easy to precipitate, and starch is unclear with supernatant separation.
After impregnating 2 hours, the starch emulsion that precipitating is sucked out in the cylinder bottom that cylinder is precipitated from first is spare.
2) purple sweet potato fibrosis: soaked peeling purple sweet potato in step 1) is taken, with equipped with ceramics made of nano zircite
At filament, which may be selected model TY-1800 type and is crushed type, suitable power 7.5KW, main shaft the wood wool making machine plane of roller knife
Revolving speed 2200r/min, 1800 kgs/hour of production efficiency, water consumption 0.85m3/h.Plane silk is completed by ceramic roller knife, ceramic material
Matter can be to avoid metallic pollution, while the sharp ceramic knife edge can dig purple sweet potato at thin and thin purple sweet potato fiber filament, then pass through
The included waterworks of wood wool making machine are washed by water into plane cabinet and filtration system, using the effect of washing away of water, will be formed sediment on purple sweet potato fiber
Powder particle is stripped out, and then separates starch slurry by filter screen, is discharged from respective outlet.The plane bolting silk of purple sweet potato divides
A crucial step, it is related to the flour extraction of fresh sweet potato and the quality of starch, and flour extraction is higher, and the starch extraction rate of purple sweet potato is also got over
The quantum of output of height, starch is more.By making the cell rupture of fresh sweet potato as much as possible, more free starch particles are released, easily
In separation.The meticulous starch that is unfavorable for of purple potato skin slag is separated with other compositions, and increases the difficulty of separation fine slag.So selecting
When size degradation fresh sweet potato, the cutter of selection bistrique formula is avoided, it can be thin skin sizing comminution, blocks filter screen, reduces the removing of starch
And separation.
3) free starch sieves: the purple sweet potato filament of plane system in step 2) is gone to the food-grade PP filter screen that mesh number is 30 mesh
In, the lower section setting multilayer mesh number of food-grade PP filter screen is the filtering gauze of 40 mesh, and is 0.85m with flow velocity3/ h's is pure
Water is rinsed, and using the effect of washing away of water, free starch particle is stripped out, and is then separated in feeding grade PP filter screen
The secondary potato slag in primary potato slag and filtering gauze out is placed in filtering gauze to be washed away 3 times again, obtains sieving filtered
Then filtered fluid mixes the filtered fluid after screening with the starch sediment that the suction of cylinder bottom is precipitated from first in the step 2)
It closes, is then blended into the pure water of 1:12, food grade phosphoric acid is added or citric acid, tartaric acid solution adjust slurries, adjusts enzymolysis liquid
PH value took bottom sediment lotion to be concentrated, and then carried out air-flow and spray quick-fried drying, purple sweet potato starch is made to 5.0 standing 2 hours.
4) purple sweet potato Slag treatment: primary purple sweet potato and secondary purple sweet potato in step 3) are taken, pure water is added and is mixed, then
Potato dreg slurry is added in high-speed shearing machine and carries out homogeneous shearing.After potato dreg slurry is in the machine cavity for entering high-speed shearing machine, warp
Multiple shear surfaces are crossed, the multiple comprehensive functions such as thousands of secondary intensive shears, shock, grinding, hole is generated, potato slag is made to reach significant
Wet method super-fine effect, equipment are directed to skin slag class soft fiber, in stator and rotor sructure arrangement, draw external controlled ultra-fine cutting and set
Standby design concept provides powerful mechanical shearing ability using the linear velocity of superelevation, carries out shearing-crushing to fibre material, in addition
Achieve the purpose that ultramicro grinding by the knife sieve backlash for designing different to control the fineness of pulverized material.Of the invention excellent
It selects in embodiment, selecting the knife grit number being equipped with for the high-speed shearing machine is 150 mesh, homogenization pressure 45MPa, the fiber produced
Powder Particle Size is moderate.Homogeneous potato dreg slurry after taking shearing is blended into the pure water of 1:10, be then added food grade phosphoric acid or citric acid,
Tartaric acid solution adjusts the pH value of potato dreg slurry to 6.8, adds in the slurries that suitable alpha-amylase is 6.8 to above-mentioned pH value,
It is warming up to 83 DEG C to digest 2.5 hours, so that the combination starch in potato slag is digested.Then so that slurries is cooled to 55 DEG C ± 5%, use
Food grade phosphoric acid or citric acid, tartaric acid solution adjust the pH value of slurries to 5.5, and protease is added under heat-retaining condition and is digested.
In a preferred embodiment of the invention, the additive amount of alpha-amylase is 128U/g potato slag, and the additive amount of protease is 23U/g potato
Slag.The completely rear enzyme deactivation of enzymatic hydrolysis is simultaneously filtered, and obtains enzymolysis liquid and Production With Residue of Enzymatic Hydrolysis, enzyme deactivation is water-bath 1.5 hours under 78 DEG C of water bath
It completes.Then Production With Residue of Enzymatic Hydrolysis is subjected to the ultra-fine grinding that mesh number is 150 mesh, crushes laggard promoting the circulation of qi stream and spray quick-fried drying, being made can not
Insoluble dietary fiber powder obtained and obtained soluble dietary fiber powder are separately dried storage by soluble dietary fiber powder.
Air-flow, which sprays quick-fried drying equipment, selects the large-scale air-flow of the model CY of southern exposure Food Machinery Co., Ltd. to spray quick-fried machine, and air-flow spray is quick-fried dry
Temperature when dry is 182 DEG C, and the air-flow spray quick-fried duration is 20 seconds.
8) semen armeniacae amarae skin powder is produced, and the semen armeniacae amarae skin of dehydration is taken to be ground into the semen armeniacae amarae skin that mesh number is 200 mesh with pulverizer
Powder.Semen armeniacae amarae skin powder is placed in 0.1% citric acid solution in ultramicro grinding to be impregnated 8 hours, and soaking temperature is maintained at 70 DEG C, hardship
The control of the material-water ratio of almond peel powder and citric acid solution carries out detoxification in 1:18, by the immersion of citric acid solution, removes bitter apricot
The amarogentin of benevolence Pi Fenzhong.
9) mixed, take step 3) to be uniformly mixed with purple sweet potato starch and semen armeniacae amarae skin powder obtained in step 5) and pass through air-flow
Spray quick-fried drying.In the mixed process of step 6), temperature when air-flow sprays quick-fried dry is 233 DEG C, and the air-flow spray quick-fried duration is 6
Second.
5) it is vacuum-packed, the powder after mixture is sterilized, is then packed according to 500 grams/bag of specification.
Purple sweet potato starch trophic structure proportion of the invention is scientific and reasonable, in preparation process, selects fresh purple sweet potato to be used as and adds
Work raw material does not carry out shortening processing to purple sweet potato in advance, and the inner molecular structure of starch is uninfluenced, is then sieved using physics
Remove the highest free starch particle of content accounting.During producing starch, also synchronizes and be extracted dietary fiber, improve purple
The utilization rate of potato.The semen armeniacae amarae skin powder of addition contains multiple beneficial in the active material of human body, has healthcare function as one kind
Active constituent, substantially increase its healthy nutritive value.In addition, the polyphenol compound in semen armeniacae amarae powder has high anti-oxidation
Ability, prevention coronary heart disease, improve blood lipid and it is anti-inflammatory while, also have anti-oxidation chemoproection effect, to purple sweet potato starch
In active material carry out anti-oxidation protection, be a kind of pure natural green and healthy food.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention, the present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (8)
1. a kind of pure natural purple sweet potato starch, which is characterized in that the purple sweet potato starch is by weight 85~90 parts as made from purple sweet potato
Purple sweet potato starch and semen armeniacae amarae skin made from 5~6 parts semen armeniacae amarae skin powder constitute.
2. pure natural purple sweet potato starch according to claim 1, which is characterized in that it is " purple sweet potato that the purple sweet potato, which is selected from kind,
135 " purple sweet potato.
3. the production method of pure natural purple sweet potato starch according to claim 1 or 2, which comprises the steps of:
1) purple sweet potato selection: selecting this season purple sweet potato of fresh no disease and pests harm, cleans epidermis dirt, then removes epidermis, removes epidermis
When, then the pulp to expose purple sweet potato is directly lost the purple sweet potato for eliminating epidermis into dress without rinsing as criterion of acceptability
It is impregnated in the first precipitation cylinder for having pure water 2~3 hours, being added in the first precipitation cylinder has citric acid, for adjusting pure water
PH value is 4.1~4.3；
2) purple sweet potato fibrosis: the starch sediment that precipitating is sucked out in cylinder bottom is precipitated from first, then takes soaked in step 1)
Purple sweet potato is removed the peel, is dug with the wood wool making machine equipped with ceramic roller knife made of nano zircite into filament；
3) free starch sieves: the purple sweet potato filament that system is dug in step 2 is gone to the food-grade PP filter screen that mesh number is 30~40 mesh
In, the lower section setting multilayer mesh number of food-grade PP filter screen is the filtering gauze of 40~50 mesh, and is 0.85m with flow velocity3/ h's
Pure water is rinsed, and using the effect of washing away of water, free starch particle is stripped out, then in feeding grade PP filter screen
The secondary purple sweet potato in primary purple sweet potato and filtering gauze isolated is placed in filtering gauze to be washed away 3 times again, is sieved
Then filtered filtered fluid sinks the filtered fluid after screening with the step 2 from the starch that the first precipitation cylinder bottom is sucked out
Starch mixing, is then blended into the pure water of 1:12, and food grade phosphoric acid is added or citric acid, tartaric acid solution adjust slurries, adjusts enzyme
The pH value of liquid is solved to 5.0 standing 2~3 hours, takes bottom sediment lotion to be concentrated, then carries out air-flow and spray quick-fried drying, be made
Starch；
4) purple sweet potato Slag treatment: primary purple sweet potato and secondary purple sweet potato in step 3) are taken, pure water is added and is mixed, then by potato
Dreg slurry is added in high-speed shearing machine and carries out homogeneous shearing, and the homogeneous potato dreg slurry after taking shearing is blended into the pure water of 1:10, so
The pH value that addition food grade phosphoric acid or citric acid, tartaric acid solution adjust potato dreg slurry afterwards adds suitable alpha-amylase to 6.8
In the slurries for being 6.8 to above-mentioned pH value, it is warming up to 80~85 DEG C and digests 2~3 hours, it is then made to be cooled to 55 DEG C ± 5%, use
Food grade phosphoric acid or citric acid, tartaric acid solution adjust the pH value of slurries to 5.5, and protease is added under heat-retaining condition and is digested,
The completely rear enzyme deactivation of enzymatic hydrolysis is simultaneously filtered, and obtains enzymolysis liquid and Production With Residue of Enzymatic Hydrolysis, it is that 150~180 purposes are ultra-fine that Production With Residue of Enzymatic Hydrolysis, which is then carried out mesh number,
Crushing of Ultrafine crushes laggard promoting the circulation of qi stream and sprays quick-fried drying, insoluble dietary fiber powder is made；Then food-grade is added in enzymolysis liquid
Phosphoric acid or citric acid, tartaric acid solution adjust slurries, adjust the pH value of enzymolysis liquid to 5.0 standing 2 hours, take supernatant to carry out dense
Contracting, then into the supernatant of concentration, 85% ethyl alcohol of 6 times of volumes of addition alcohol under the conditions of 65 DEG C of temperature is analysed 2~3 days, Gu
After liquid separation, taking precipitate carries out the ultra-fine grinding that mesh number is 150~180 mesh, crushes laggard promoting the circulation of qi stream and sprays quick-fried drying, is made
Insoluble dietary fiber powder obtained and obtained soluble dietary fiber powder are separately dried and are deposited by soluble dietary fiber powder
Storage；
5) semen armeniacae amarae skin powder is produced, and the semen armeniacae amarae skin of dehydration is taken to be ground into the semen armeniacae amarae skin powder that mesh number is 200 mesh with pulverizer, bitter
Almond peel powder is placed in 0.1 % citric acid solution in ultramicro grinding to be impregnated 8 hours, and soaking temperature is maintained at 70 DEG C, semen armeniacae amarae
The material-water ratio control of Pi Fenyu citric acid solution carries out detoxification in 1:18, by the immersion of citric acid solution, removes semen armeniacae amarae skin
Amarogentin in powder；
6) mixed, take in step 3) and step 5) purple sweet potato starch and semen armeniacae amarae skin powder obtained to be uniformly mixed and pass through air-flow spray it is quick-fried
It is dry；
7) it is vacuum-packed, the powder after mixture is sterilized, is then packed according to 500 grams/bag of specification.
4. the production method of pure natural purple sweet potato starch according to claim 3, which is characterized in that in the step 4),
The knife grit number of the high-speed shearing machine is 150 mesh, and homogenization pressure is 40~45MPa.
5. the production method of pure natural purple sweet potato starch according to claim 3, which is characterized in that in the step 4),
The additive amount of alpha-amylase is 120~130U/g purple sweet potato, and the additive amount of protease is 20~26U/g purple sweet potato.
6. the production method of pure natural purple sweet potato starch according to claim 3, which is characterized in that in the step 4),
The enzyme deactivation is to complete for water-bath 1~1.5 hour under 78~80 DEG C of water bath.
7. the production method of pure natural purple sweet potato starch according to claim 3, which is characterized in that in the step 4),
Temperature when air-flow sprays quick-fried dry is 180~185 DEG C, and the air-flow spray quick-fried duration is 20 seconds.
8. the production method of pure natural purple sweet potato starch according to claim 3, which is characterized in that in the step 6),
Temperature when air-flow sprays quick-fried dry is 230~235 DEG C, and the air-flow spray quick-fried duration is 6 seconds.
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| CN114098083A (en) * | 2021-12-02 | 2022-03-01 | 武汉轻工大学 | Purple sweet potato ingredient and preparation method and application thereof |
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Application publication date: 20190412 |