CN108576787A - A kind of manufacture craft of health-care sweet potato powder - Google Patents

A kind of manufacture craft of health-care sweet potato powder Download PDF

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Publication number
CN108576787A
CN108576787A CN201810399216.8A CN201810399216A CN108576787A CN 108576787 A CN108576787 A CN 108576787A CN 201810399216 A CN201810399216 A CN 201810399216A CN 108576787 A CN108576787 A CN 108576787A
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sweet potato
water
powder
starch
extract
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杨振华
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/30Foods 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
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L3/00Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3454Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
    • A23L3/3463Organic compounds; Microorganisms; Enzymes
    • A23L3/3472Compounds of undetermined constitution obtained from animals or plants
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/105Plant extracts, their artificial duplicates or their derivatives
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L5/00Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/40Colouring or decolouring of foods
    • A23L5/41Retaining or modifying natural colour by use of additives, e.g. optical brighteners
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

Abstract

The invention discloses a kind of manufacture crafts of health-care sweet potato powder, are related to food processing technology field.It the described method comprises the following steps:The selection of sweet potato and cleaning, mashing, precipitation, the making pasty mixture of starch and water, steaming and solarization powder, wherein, mashing, precipitation and etc. in handled with tea extract, tea extract, pumpkin seed extract, purple common perilla seed and grape seed extract are added to when making the pasty mixture of starch and water into starch from sweet potato, and first mint extract is sprayed on bean sheet jelly before drying.The present invention is by optimizing production method, it is suppressed that the generation of dark brown color substance in sweet potato powder makes sweet potato powder obtained not black, and color and luster is bright, pure, improves quality;Meanwhile encountering rainy weather also during drying naturally can prevent sweet potato powder from rancid go bad occurs;In addition, sweet potato powder of the present invention also has weight-reducing, reducing blood lipid, blood pressure lowering, hypoglycemic health-care efficacy, it is especially suitable for designed for old people.

Description

A kind of manufacture craft of health-care sweet potato powder
【Technical field】
The present invention relates to food processing technology fields, and in particular to a kind of manufacture craft of health-care sweet potato powder.
【Background technology】
Sweet potato powder is China's traditional characteristics food, rich in protein, carbohydrate, fat, phosphorus, calcium, iron, carrotene, dimension life The nutritional ingredients such as element, linoleic acid, amino acid have special flavor and taste, are loved by consumers.Studies have shown that sweet potato Powder heat is very low, eats more and is not easy to get fat, and is a kind of ideal diet food, meanwhile, sweet potato powder can protect skin, delay to decline Always and the good merchantable brand of beautifying face and moistering lotion.
The primary raw material that current sweet potato powder makes is sweet potato, can also add some auxiliary materials and make together, main manufacture craft Flow is:It selects potato → peeling → to clean → mashing → and precipitates → make the pasty mixture of starch and water → steaming → solarization powder → finished product.Wherein sweet potato is in powder In broken mashing and precipitation process, oxidizing brown stain easily occurs for aldehydes matter in sweet potato, in addition the mixing of other foreign pigments, makes Vermicelli obtained black, and color and luster is gloomy, quality decline.And shine in powder step, southern area mostly uses nature and shines drying method, but meets To rainy weather, slow drying speed is easy to happen rotten in addition southern high-temperature high humidity weather, and many producers have to meeting Continue to dry to bean vermicelli is transferred to greenhouse when rainy days, this can increase energy use, improve production cost.In addition, with people Improvement of living standard, the requirement to high-level health-care nutritive food is higher and higher, the bean vermicelli containing single starch contents and Vermicelli have been unable to meet the requirement of people, in order to adapt to needs of the society to health-care nutritive, need to increase the health care effect of sweet potato powder Fruit overcomes the problems, such as that existing sweet potato powder health-care effect is single, meets public demand.
【Invention content】
In view of the above-mentioned problems, the technical problem to be solved in the present invention is to provide a kind of manufacture craft of health-care sweet potato powder, it should Method is by optimizing production method, it is suppressed that the generation of dark brown color substance in sweet potato powder makes sweet potato powder obtained not black, color and luster It is bright, pure, improve quality;Meanwhile encountering rainy weather also during drying naturally can prevent sweet potato powder from rancid change occurs Matter;In addition, sweet potato powder of the present invention also has weight-reducing, reducing blood lipid, blood pressure lowering, hypoglycemic health-care efficacy, it is especially suitable for the elderly It is edible.
In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:
A kind of manufacture craft of health-care sweet potato powder, includes the following steps:
(1) selection and cleaning of sweet potato:Select smooth epidermis, disease-free pityriasis simplex, without rotten new fresh sweet potatoes as raw material, and The silt on the sweet potato surface is cleaned up;
(2) it is beaten:It is crushed being put into pulverizer together with above-mentioned clean sweet potato and the water of equivalent, obtains the first slurry Material, the tea extract that the first slurry weight 0.5-1% is added into the first slurry is mixed evenly, with 80-100 mesh For sieve by first slurries filtration, it is spare to collect slurries, and it is broken that filter residue is put into together with the water of equivalent to pulverizer relaying continued powder, The second slurry is obtained, the tea extract that the second slurry weight 0.1-0.3% is added into the second slurry is mixed evenly, It is used in combination 80-100 mesh sieve by second slurries filtration, the slurries for slurries being obtained by filtration with above-mentioned collection obtains is mixed, are obtained Sweet potato paste;
(3) it precipitates:Above-mentioned sweet potato paste is put into pretipitatin jar and carries out 5-6 precipitation, water one is changed after precipitating 12-24h every time It is secondary, it changes every time after water and the tea extract mixing of material water inventory 0.1-0.3% is added into pretipitatin jar, last time precipitation knot Shu Hou filters out upper water, obtains starch from sweet potato;
(4) pasty mixture of starch and water is made:The konjaku flour of starch from sweet potato obtained above and the starch from sweet potato weight 0.4-0.6% is mixed It is even, mixture is obtained, and the pumpkin of the tea extract of the mixture weight 0.1-0.2%, 0.5-1% is added into mixture Seed extract, the purple common perilla seed of 0.3-0.5%, 0.2-0.4% grape seed extracts and the mixture 3-4 weight Water again is mixed evenly together, obtains the transparent pasty mixture of starch and water of paste;
(5) steaming and solarization powder:The transparent pasty mixture of starch and water of above-mentioned paste is put into flat steaming plate and is cooked, bean sheet jelly is obtained, it is cooling, to described Uniformly spray mint extract on bean sheet jelly after cooling, and bean sheet jelly divided after drying to water content is 70-80%, be cut into needed for The vermicelli of specification, then by vermicelli continue drying to water content be 10-20% to get finished product.
Further, the preparation method of the tea extract is:Tea tree young leaves are taken, it is 40- to finish, be dried to water content After 60%, it is cut into broken section, broken section is put into the water of 2-4 times of weight and extracts 1-2h, repeats extraction 2-3 times, merges leachate, it will After leachate is concentrated into the 1/3 of original volume, it is spray-dried to get the tea extract.
Further, the preparation method of the pumpkin seed extract is:After pumpkin is crushed, 3-5 times of weight is added 2-4h is extracted in composite enzyme solution at 20-60 DEG C, high speed centrifugation takes upper liquid, is concentrated and dried to get the complex enzyme is molten Liquid is blended by the protease, cellulase and pectase of equivalent.
Further, the preparation method of the purple common perilla seed is:It takes purple perilla seed to be ground into powder, the powder is added In the ethyl alcohol that the volumetric concentration for entering 10-15 times of weight is 60-80%, 4-8h is extracted at 40-50 DEG C, is centrifuged, is taken supernatant, subtract It press dry dry to get purple common perilla seed.
Further, the preparation method of the grape seed extract is:It takes grape pip powder to be broken into powder, the powder is added In the ethyl alcohol that the volumetric concentration for entering 10-20 times of weight is 80-90%, 1-3h is extracted at 40-60 DEG C, is centrifuged, is taken supernatant, subtract It press dry dry to get grape seed extract.
Further, the preparation method of the mint extract is:Dried peppermint leaf is freeze-dried, is crushed, volume point is added Number is solid-liquid ratio 1 in the ethyl alcohol of 40-50%:3-6, ultrasonication 20-40min, filtering, with Rotary Evaporators by filtrate It is recovered under reduced pressure, collects recovered liquid to get mint extract.
Further, in step (5), before the transparent pasty mixture of starch and water of paste is put into flat steaming plate, last layer plant is first smeared in steaming plate Oil.
Further, in step (5), the bean sheet jelly thickness is 3-5mm.
Compared with prior art, the present invention has the advantages that:
The method of the present invention is by optimizing production method, it is suppressed that the generation of dark brown color substance in sweet potato powder makes obtained red Potato powder does not black, and color and luster is bright, pure, improves quality;Meanwhile it encountering rainy weather also during drying naturally and can prevent and is red Potato powder occurs rancid rotten;In addition, sweet potato powder of the present invention also has weight-reducing, reducing blood lipid, blood pressure lowering, hypoglycemic health-care efficacy, It is especially suitable for designed for old people.
Tea extract of the present invention can prevent in sweet potato aldehydes matter that oxidizing brown stain occurs, mashing, precipitation and etc. in It is handled using tea extract, reduces the generation of dark brown color substance in starch from sweet potato, it is gloomy to solve sweet potato powder color and luster The problem of, in the case where not adding any brightening agent, keep sweet potato powder color and luster obtained bright, pure.
Mint extract of the present invention has sterilization, anti-corrosion and anti-oxidation efficacy, can press down and kill spoilage organisms, be sprayed on bean sheet jelly thin It drying after lotus extract, sweet potato powder generation is rancid rotten during can effectivelying prevent drying, meanwhile, grape seed extract liquid has Sterilization and anticorrosion effect further enhances Antimicrobial preservative effect with mint extract collective effect, and it is anti-to enhance sweet potato powder antibacterial Rotten performance.
Tea extract of the present invention, pumpkin seed extract, purple common perilla seed, grape seed extract collective effect, have Reducing blood lipid, blood pressure lowering, hypoglycemic and weight-reducing effect.
【Specific implementation mode】
The specific implementation mode of the present invention is described further with reference to embodiments.
Embodiment 1
A kind of manufacture craft of health-care sweet potato powder of the present embodiment, includes the following steps:
(1) selection and cleaning of sweet potato:Select smooth epidermis, disease-free pityriasis simplex, without rotten new fresh sweet potatoes as raw material, and The silt on the sweet potato surface is cleaned up.
(2) it is beaten:It is crushed being put into pulverizer together with above-mentioned clean sweet potato and the water of equivalent, obtains the first slurry Material, the tea extract that first slurry weight 0.5% is added into the first slurry are mixed evenly, will with 80 mesh sieve First slurries filtration, it is spare to collect slurries, and it is broken that filter residue is put into together with the water of equivalent to pulverizer relaying continued powder, obtains second Slurry, the tea extract that second slurry weight 0.1% is added into the second slurry are mixed evenly, and 80 mesh is used in combination to sieve The slurries for slurries being obtained by filtration with above-mentioned collection obtains are mixed, obtain sweet potato paste by son by second slurries filtration.
(3) it precipitates:Above-mentioned sweet potato paste is put into pretipitatin jar and carries out 5 precipitations, precipitates that change water after 12h primary every time, often It is secondary to change after water the tea extract mixing that material water inventory 0.1% is added into pretipitatin jar, for the last time after precipitation, filter out Upper water obtains starch from sweet potato.
(4) pasty mixture of starch and water is made:By the konjaku flour mixing of starch from sweet potato obtained above and the starch from sweet potato weight 0.4%, Mixture, and be added into mixture 0.1% tea extract of mixture weight, 0.5% pumpkin seed extract, The water of 3 times of weight of 0.3% purple common perilla seed, 0.2% grape seed extract and the mixture is mixed together It is even, obtain the transparent pasty mixture of starch and water of paste.
(5) steaming and solarization powder:Last layer vegetable oil is smeared in tablet steaming plate, and the transparent pasty mixture of starch and water of above-mentioned paste is put into flat steaming It is cooked in plate, obtains bean sheet jelly, the bean sheet jelly thickness is 3mm, cooling, and peppermint extraction is uniformly sprayed on the bean sheet jelly after cooling Object, and bean sheet jelly is divided after drying to water content is 70%, the vermicelli of required specification are cut into, vermicelli are then continued into drying to containing Water is 10% to get finished product.
The preparation method of the tea extract is:Take tea tree young leaves, finish, be dried to water content be 40% after, be cut into Broken section, broken section is put into the water of 2 times of weight and extracts 1h, repeat extraction 2 times, merged leachate, leachate is concentrated into substance Behind long-pending 1/3, it is spray-dried to get the tea extract.
The preparation method of the pumpkin seed extract is:After pumpkin is crushed, it is added in the composite enzyme solution of 3 times of weight Extract 2h at 20 DEG C, high speed centrifugation takes upper liquid, be concentrated and dried to get, the composite enzyme solution by equivalent protease, Cellulase and pectase are blended.
The preparation method of the purple common perilla seed is:It takes purple perilla seed to be ground into powder, 10 weight is added in the powder In the ethyl alcohol that volumetric concentration again is 60%, 4h is extracted at 40 DEG C, is centrifuged, is taken supernatant, be dried under reduced pressure and carried to get purple perilla seed Take object.
The preparation method of the grape seed extract is:It takes grape pip powder to be broken into powder, 10 weight is added in the powder In the ethyl alcohol that volumetric concentration again is 80%, 1h is extracted at 40 DEG C, is centrifuged, is taken supernatant, be dried under reduced pressure and carried to get grape pip Take object.
The preparation method of the mint extract is:Dried peppermint leaf is freeze-dried, is crushed, it is 40% that volume fraction, which is added, In ethyl alcohol, solid-liquid ratio 1:Filtrate, is recovered under reduced pressure with Rotary Evaporators, is collected back by 3, ultrasonication 20min, filtering Liquid is received to get mint extract.
Embodiment 2
A kind of manufacture craft of health-care sweet potato powder of the present embodiment, includes the following steps:
(1) selection and cleaning of sweet potato:Select smooth epidermis, disease-free pityriasis simplex, without rotten new fresh sweet potatoes as raw material, and The silt on the sweet potato surface is cleaned up.
(2) it is beaten:It is crushed being put into pulverizer together with above-mentioned clean sweet potato and the water of equivalent, obtains the first slurry Material, the tea extract that first slurry weight 1% is added into the first slurry are mixed evenly, will with 100 mesh sieve First slurries filtration, it is spare to collect slurries, and it is broken that filter residue is put into together with the water of equivalent to pulverizer relaying continued powder, obtains second Slurry, the tea extract that second slurry weight 0.3% is added into the second slurry are mixed evenly, and 100 mesh are used in combination The slurries for slurries being obtained by filtration with above-mentioned collection obtains are mixed, obtain sweet potato paste by sieve by second slurries filtration.
(3) it precipitates:Above-mentioned sweet potato paste is put into pretipitatin jar and carries out 6 precipitations, it is primary to change water afterwards for 24 hours for precipitation every time, often It is secondary to change after water the tea extract mixing that material water inventory 0.3% is added into pretipitatin jar, for the last time after precipitation, filter out Upper water obtains starch from sweet potato.
(4) pasty mixture of starch and water is made:By the konjaku flour mixing of starch from sweet potato obtained above and the starch from sweet potato weight 0.6%, Mixture, and be added into mixture 0.2% tea extract of mixture weight, 1% pumpkin seed extract, The water of 4 times of weight of 0.5% purple common perilla seed, 0.4% grape seed extract and the mixture is mixed together It is even, obtain the transparent pasty mixture of starch and water of paste.
(5) steaming and solarization powder:Last layer vegetable oil is smeared in tablet steaming plate, and the transparent pasty mixture of starch and water of above-mentioned paste is put into flat steaming It is cooked in plate, obtains bean sheet jelly, the bean sheet jelly thickness is 5mm, cooling, and peppermint extraction is uniformly sprayed on the bean sheet jelly after cooling Object, and bean sheet jelly is divided after drying to water content is 80%, the vermicelli of required specification are cut into, vermicelli are then continued into drying to containing Water is 20% to get finished product.
The preparation method of the tea extract is:Take tea tree young leaves, finish, be dried to water content be 60% after, be cut into Broken section, broken section is put into the water of 4 times of weight and extracts 2h, repeat extraction 3 times, merged leachate, leachate is concentrated into substance Behind long-pending 1/3, it is spray-dried to get the tea extract.
The preparation method of the pumpkin seed extract is:After pumpkin is crushed, it is added in the composite enzyme solution of 5 times of weight Extract 4h at 60 DEG C, high speed centrifugation takes upper liquid, be concentrated and dried to get, the composite enzyme solution by equivalent protease, Cellulase and pectase are blended.
The preparation method of the purple common perilla seed is:It takes purple perilla seed to be ground into powder, 15 weight is added in the powder In the ethyl alcohol that volumetric concentration again is 80%, 8h is extracted at 50 DEG C, is centrifuged, is taken supernatant, be dried under reduced pressure and carried to get purple perilla seed Take object.
The preparation method of the grape seed extract is:It takes grape pip powder to be broken into powder, 20 weight is added in the powder In the ethyl alcohol that volumetric concentration again is 90%, 3h is extracted at 60 DEG C, is centrifuged, is taken supernatant, be dried under reduced pressure and carried to get grape pip Take object.
The preparation method of the mint extract is:Dried peppermint leaf is freeze-dried, is crushed, it is 50% that volume fraction, which is added, In ethyl alcohol, solid-liquid ratio 1:Filtrate, is recovered under reduced pressure with Rotary Evaporators, is collected back by 6, ultrasonication 40min, filtering Liquid is received to get mint extract.
Embodiment 3
A kind of manufacture craft of health-care sweet potato powder of the present embodiment, includes the following steps:
(1) selection and cleaning of sweet potato:Select smooth epidermis, disease-free pityriasis simplex, without rotten new fresh sweet potatoes as raw material, and The silt on the sweet potato surface is cleaned up.
(2) it is beaten:It is crushed being put into pulverizer together with above-mentioned clean sweet potato and the water of equivalent, obtains the first slurry Material, the tea extract that first slurry weight 0.7% is added into the first slurry are mixed evenly, will with 90 mesh sieve First slurries filtration, it is spare to collect slurries, and it is broken that filter residue is put into together with the water of equivalent to pulverizer relaying continued powder, obtains second Slurry, the tea extract that second slurry weight 0.2% is added into the second slurry are mixed evenly, and 90 mesh is used in combination to sieve The slurries for slurries being obtained by filtration with above-mentioned collection obtains are mixed, obtain sweet potato paste by son by second slurries filtration.
(3) it precipitates:Above-mentioned sweet potato paste is put into pretipitatin jar and carries out 6 precipitations, precipitates that change water after 20h primary every time, often It is secondary to change after water the tea extract mixing that material water inventory 0.2% is added into pretipitatin jar, for the last time after precipitation, filter out Upper water obtains starch from sweet potato.
(4) pasty mixture of starch and water is made:By the konjaku flour mixing of starch from sweet potato obtained above and the starch from sweet potato weight 0.5%, Mixture, and be added into mixture the tea extract of the mixture weight 0.15%, 0.7% pumpkin extraction Object, 3.5 times of weight of 0.4% purple common perilla seed, 0.3% grape seed extract and the mixture water mix together It stirs evenly, obtains the transparent pasty mixture of starch and water of paste.
(5) steaming and solarization powder:Last layer vegetable oil is smeared in tablet steaming plate, and the transparent pasty mixture of starch and water of above-mentioned paste is put into flat steaming It is cooked in plate, obtains bean sheet jelly, the bean sheet jelly thickness is 4mm, cooling, and peppermint extraction is uniformly sprayed on the bean sheet jelly after cooling Object, and bean sheet jelly is divided after drying to water content is 75%, the vermicelli of required specification are cut into, vermicelli are then continued into drying to containing Water is 15% to get finished product.
The preparation method of the tea extract is:Take tea tree young leaves, finish, be dried to water content be 50% after, be cut into Broken section, broken section is put into the water of 3 times of weight and extracts 1.5h, repeat extraction 3 times, merged leachate, leachate is concentrated into original Behind the 1/3 of volume, it is spray-dried to get the tea extract.
The preparation method of the pumpkin seed extract is:After pumpkin is crushed, it is added in the composite enzyme solution of 4 times of weight Extract 3h at 50 DEG C, high speed centrifugation takes upper liquid, be concentrated and dried to get, the composite enzyme solution by equivalent protease, Cellulase and pectase are blended.
The preparation method of the purple common perilla seed is:It takes purple perilla seed to be ground into powder, 13 weight is added in the powder In the ethyl alcohol that volumetric concentration again is 70%, 6h is extracted at 45 DEG C, is centrifuged, is taken supernatant, be dried under reduced pressure and carried to get purple perilla seed Take object.
The preparation method of the grape seed extract is:It takes grape pip powder to be broken into powder, 15 weight is added in the powder In the ethyl alcohol that volumetric concentration again is 85%, 2h is extracted at 50 DEG C, is centrifuged, is taken supernatant, be dried under reduced pressure and carried to get grape pip Take object.
The preparation method of the mint extract is:Dried peppermint leaf is freeze-dried, is crushed, it is 45% that volume fraction, which is added, In ethyl alcohol, solid-liquid ratio 1:Filtrate, is recovered under reduced pressure with Rotary Evaporators, is collected back by 5, ultrasonication 30min, filtering Liquid is received to get mint extract.
Contrast test one:More excellent in order to illustrate sweet potato powder quality of the present invention, applicant has done following tests, and experiment is divided into reality Apply a group and control group, wherein the sweet potato that each group uses with deriving from Hechi City, Guangxi Yizhou area piece sweet potato, plant by sweet potato Environmental condition all same.Embodiment group makes sweet potato powder using the method for embodiment 3;Control group does not add tea in the production process Leaf extract is handled, other steps are same as Example 3.The quality of sweet potato powder finished product is made in observation statistics each group, and It is evaluated with expert point rating method, wherein expert analysis mode total score is 10 points, and opinion rating divides:9-10 points are excellent, and 8-8.9 points are In, it is poor less than 8 points), it the results are shown in Table 1:
1 sweet potato powder quality of table compares
The present invention is by optimizing production method as known from Table 1, it is suppressed that the generation of dark brown color substance in sweet potato powder makes to be made Sweet potato powder do not black, color and luster is bright, pure, good quality.
Contrast test two:In order to illustrate sweet potato powder quality Antimicrobial preservative effect of the present invention, applicant has done following tests, examination It tests and is divided into embodiment group, control group 1, control group 2, wherein the sweet potato that each group uses derives from Hechi City, Guangxi Yizhou area Piece sweet potato, sweet potato planting environment condition all same.Embodiment group makes sweet potato powder using the method for embodiment 3;Control group 1 exists Grape seed extract is not added in manufacturing process, other steps are same as Example 3;Control group 2 does not make in the production process Handled with mint extract, i.e., do not spray mint extract uniformly on bean sheet jelly after cooling, other steps with implementation Example 3 is identical.Other production environment condition all sames of each group.It is 25-30 DEG C that sweet potato powder made from each group, which is put into temperature, and humidity is It is dried in the room of 60-80%, sweet potato powder Antimicrobial preservative effect is made in observation statistics each group after drying 4-7 days, the results are shown in Table 2:
2 sweet potato powder Antimicrobial preservative effect of table
As known from Table 2, mint extract of the present invention, grape seed extract liquid all have sterilization and anticorrosion effect, and the two is common Effect further enhances Antimicrobial preservative effect.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to In the covered the scope of the claims of the present invention.

Claims (8)

1. a kind of manufacture craft of health-care sweet potato powder, it is characterised in that:Include the following steps:
(1) selection and cleaning of sweet potato:Select smooth epidermis, disease-free pityriasis simplex, without rotten new fresh sweet potatoes as raw material, and by institute The silt for stating sweet potato surface cleans up;
(2) it is beaten:It is crushed being put into pulverizer together with above-mentioned clean sweet potato and the water of equivalent, obtains the first slurry, to The tea extract that the first slurry weight 0.5-1% is added in first slurry is mixed evenly, with 80-100 mesh sieve By first slurries filtration, it is spare to collect slurries, and it is broken that filter residue is put into together with the water of equivalent to pulverizer relaying continued powder, obtains the Two slurries, the tea extract that the second slurry weight 0.1-0.3% is added into the second slurry are mixed evenly, are used in combination The slurries for slurries being obtained by filtration with above-mentioned collection obtains are mixed, obtain sweet potato by 80-100 mesh sieve by second slurries filtration Slurry;
(3) it precipitates:Above-mentioned sweet potato paste is put into pretipitatin jar and carries out 5-6 precipitation, precipitates that change water after 12-24h primary every time, often It is secondary to change after water the tea extract mixing that material water inventory 0.1-0.3% is added into pretipitatin jar, after last time precipitates, Upper water is filtered out, starch from sweet potato is obtained;
(4) pasty mixture of starch and water is made:By the konjaku flour mixing of starch from sweet potato obtained above and the starch from sweet potato weight 0.4-0.6%, Mixture, and the pumpkin of the tea extract of the mixture weight 0.1-0.2%, 0.5-1% is added into mixture Extract, the purple common perilla seed of 0.3-0.5%, 0.2-0.4% grape seed extracts and the mixture 3-4 times of weight Water be mixed evenly together, obtain the transparent pasty mixture of starch and water of paste;
(5) steaming and solarization powder:The transparent pasty mixture of starch and water of above-mentioned paste is put into flat steaming plate and is cooked, bean sheet jelly is obtained, it is cooling, to the cooling Mint extract is uniformly sprayed on bean sheet jelly afterwards, and bean sheet jelly is divided and is dried to water content after 70-80%, to be cut into required specification Vermicelli, then by vermicelli continue drying to water content be 10-20% to get finished product.
2. a kind of manufacture craft of health-care sweet potato powder according to claim 1, it is characterised in that:The tea extract Preparation method is:Tea tree young leaves are taken, finishes, be dried to water content after 40-60%, to be cut into broken section, 2-4 weight being put by broken section 1-2h is extracted in water again, repeats extraction 2-3 times, merges leachate, and after leachate is concentrated into the 1/3 of original volume, spraying is done It is dry to get the tea extract.
3. a kind of manufacture craft of health-care sweet potato powder according to claim 1, it is characterised in that:The pumpkin seed extract Preparation method be:After pumpkin is crushed, it is added in the composite enzyme solution of 3-5 times of weight and extracts 2-4h at 20-60 DEG C, it is high Speed centrifugation, takes upper liquid, is concentrated and dried to get the composite enzyme solution is mixed by the protease, cellulase and pectase of equivalent It makes.
4. a kind of manufacture craft of health-care sweet potato powder according to claim 1, it is characterised in that:The purple common perilla seed Preparation method be:Purple perilla seed is taken to be ground into powder, the volumetric concentration that the powder is added to 10-15 times of weight is 60-80% Ethyl alcohol in, 4-8h is extracted at 40-50 DEG C, centrifuge, take supernatant, be dried under reduced pressure to get purple common perilla seed.
5. a kind of manufacture craft of health-care sweet potato powder according to claim 1, it is characterised in that:The grape seed extract Preparation method be:Grape pip powder is taken to be broken into powder, the volumetric concentration that the powder is added to 10-20 times of weight is 80-90% Ethyl alcohol in, 1-3h is extracted at 40-60 DEG C, centrifuge, take supernatant, be dried under reduced pressure to get grape seed extract.
6. a kind of manufacture craft of health-care sweet potato powder according to claim 1, it is characterised in that:The mint extract Preparation method is:Dried peppermint leaf is freeze-dried, is crushed, is added in the ethyl alcohol that volume fraction is 40-50%, solid-liquid ratio 1:3-6, Ultrasonication 20-40min, filtering, filtrate is recovered under reduced pressure with Rotary Evaporators, is collected recovered liquid and is carried to get peppermint Take object.
7. a kind of manufacture craft of health-care sweet potato powder according to claim 1, it is characterised in that:In step (5), paste is saturating Before the bright pasty mixture of starch and water is put into flat steaming plate, last layer vegetable oil is first smeared in steaming plate.
8. a kind of manufacture craft of health-care sweet potato powder according to claim 1, it is characterised in that:In step (5), the powder Skin thickness is 3-5mm.
CN201810399216.8A 2018-04-28 2018-04-28 A kind of manufacture craft of health-care sweet potato powder Pending CN108576787A (en)

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CN113317440A (en) * 2021-06-03 2021-08-31 赵洪 Rice noodle manufacturing process
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