CN101961120B - Production method of concentrated sweet potato clear juice with high dietary fiber - Google Patents
Production method of concentrated sweet potato clear juice with high dietary fiber Download PDFInfo
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Abstract
The invention discloses a production method of a concentrated sweet potato clear juice with high dietary fiber, which comprises the following steps: cleaning, peeling, breaking and hot pressing the raw material sweet potato, then respectively obtaining the sweet potato dregs and sweet potato juice, carrying out enzymolysis and filtering the sweet potato juice to obtain the sweet potato clear juice, and obtaining the finished product of the concentrated sweet potato clear juice by post-treatment of the sweet potato clear juice. The method is characterized by extracting dietary fiber from the sweet potato skin and the sweet potato dregs, and adding the extracted dietary fiber to the sweet potato clear juice for post-treatment together. By a high-speed shearing and alcohol precipitation method, in the invention, the dietary fiber is obtained to the maximum extent and added to the concentrated sweet potato clear juice, the concentrated sweet potato clear juice product containing rich dietary fiber is produced, the content of dietary fiber of the product achieves 95%, and the product is favorable for absorption of the human body. The invention not only fully utilizes the waste skin and dregs, reduces the waste treatment cost, but also simultaneously improves the nutrient value of the product.
Description
Technical field
The present invention relates to food processing technology field, relate in particular to a kind of production method of concentrated sweet potato juice.
Background technology
Plurality kinds of health care, nutritional labeling are arranged in the Ipomoea batatas, more and more relevant for the research of its goods of squeezing the juice for the ease of the utilization to Ipomoea batatas, a kind of concentrated sweet potato juice product and preparation method are for example proposed among the Chinese invention patent 200610012489.X, the concentrated sweet potato juice product is processed through amylase, Glucoamylase hydrolysis, soluble solid content 10-70%, pH4.0-6.0.The preparation method comprises: A, raw material are processed: the Ipomoea batatas peeling is added the water fragmentation becomes pulp; B, squeeze the juice: with squeezer the Ipomoea batatas pulp is squeezed the juice; C, enzymolysis: it is 4-6 that the Ipomoea batatas squeezing juice is adjusted pH, and through Glucoamylase hydrolysis 1-3 hour, pectase decomposed 1-3 hour; D, filtration; E, concentrated; F, canning and storage.Chinese invention patent application 200810143514.7 discloses a kind of beverage of sweet potato juice and production method thereof, the production method of beverage of sweet potato juice comprises that extraction of the juice, enzyme are processed and the allotment operation, the extraction of the juice operation is fresh living Ipomoea batatas to be placed on make in the environment that Ipomoea batatas can rudiment, extraction of the juice again when treating wherein to have Ipomoea batatas to begin rudiment.It is to adopt high temperature resistant A-amylase that the starch in the sweet potato juice is liquefied that enzyme is processed.In the batching that the allotment operation adopts xanthans and guar gum are arranged.
But the prior art Ipomoea batatas can be isolated sweet potato skin and potato slag when peeling and squeezing, general sweet potato skin and potato slag content are up to 40%-55%, contain most dietary fiber component in the Ipomoea batatas in the sweet potato waste, dietary fiber has important physiological function to human body, and dietary fiber can be divided into two fundamental types to be dissolved in the water: water-soluble fibre and non-soluble fiber.Water-soluble fibre can slow down digestion rate and rapid drainage cholesterol, so can allow blood sugar and cholesterol in the blood be controlled at optimal level.Non-soluble fiber can reduce the risk of suffering from intestinal cancer, simultaneously can be via middle noxious material Constipation and the diverticulitis of assimilating food, and lower the toxin that bacterium is discharged in the alimentary canal.
But sweet potato skin and potato slag contain the impurity such as a certain amount of starch, pectin, pigment, and usually only as fertilizer, part does not take full advantage of active ingredient wherein through processing as feed in the prior art.
Summary of the invention
The invention provides a kind of production technology of high dietary-fiber concentrated sweet potato juice, not only take full advantage of waste material skin slag, reduced the waste disposal cost, improved simultaneously the nutritive value of product.
A kind of concentrated sweet potato juice production method of high dietary-fiber, comprise and to obtain respectively potato slag and sweet potato juice behind the peeling of raw material sweet potato washing, fragmentation, the hot-pressing, sweet potato juice obtains sweet potato juice through enzymolysis, filtration, sweet potato juice obtains the concentrated sweet potato juice finished product through post processing, the dietary fiber that extracts from sweet potato skin and potato slag joins the dietary fiber that extracts and goes in the lump post processing in the described sweet potato juice.
The step of extracting dietary fiber from sweet potato skin and potato slag is as follows:
(1) in sweet potato skin and potato slag, adds warm water A, in ultrasonic extractor, carry out ultrasonic extraction;
Ultrasonic extraction conditions is: ultrasonic power is 400-1200W, temperature 30-60 ℃, and time 30-40 minute.The temperature 45-60 of described warm water A ℃, preferred 50 ℃, warm water A weight is sweet potato skin and potato slag weight sum 3-5 times.
Can add as required water after sweet potato skin and potato slag merge and clean and filter, and then add warm water.
(2) ultrasonic extraction is finished and is added warm water B in the backward system, be 10% aqueous citric acid solution regulation system pH to 1.5-2 again with mass percent concentration, the potato slag liquid after 30-80 ℃ of hydrolysis 80-150 minute (can at the uniform velocity stir during hydrolysis) obtains being hydrolyzed then.
The weight of warm water B is the middle sweet potato skin of step (1) and potato slag weight sum 10-20 times, the temperature 45-60 of warm water B ℃, and preferred 50 ℃.
Warm water A and warm water B are warm water, only are the asynchronism(-nization)s that adds, and so statement is namely only for ease of distinguishing.
The preferred 60-80 of hydrolysis temperature ℃, preferred 120-150 of time minute, suitable prolongation hydrolysis time, reduce when improving hydrolysis temperature and more being conducive to carry out emulsification pretreatment in next step fibre length the upper limit, be more conducive to absorption of human body.
(3) the potato slag liquid after utilizing high shearing mixing emulsor to be hydrolyzed carries out emulsification pretreatment, 30-60 minute emulsification pretreatment time, obtain the potato slag liquid behind the emulsification pretreatment, and the fibre length in the potato slag liquid behind the emulsification pretreatment reaches the 0.1-6 micron.
(4) absolute ethyl alcohol that adds in the potato slag liquid behind the emulsification pretreatment obtained supernatant and sediment in alcohol precipitation 30-60 minute, absolute ethyl alcohol weight be behind the emulsification pretreatment potato slag liquid weight 8～13%, preferred 10%
Supernatant is recycled respectively ethanol and Liquid Residue by heating, and Recycled ethanol can be recycling through processing.
(5) sediment in the step (4) is crossed the 80-100 mesh sieve, obtain the water-soluble fibres such as pectin, glucan, i.e. dietary fiber A;
Liquid Residue in step (4) adds the food-grade sodium acid carbonate, regulate pH at 10-12, obtained alkali solution liquid under the normal temperature condition in alkaline hydrolysis 60-90 minute, with centrifugal under the alkali solution liquid 8000-12000r/min condition, collecting precipitation (cellulose, hemicellulose, lignin and resistant starch) carried out the 80-100 mesh sieve and obtained non-soluble fiber, i.e. dietary fiber B.
Dietary fiber A and dietary fiber B are described dietary fiber after merging, and then join and go in the lump post processing in the described sweet potato juice.
The cleaning of Raw Ipomoea batatas of the present invention peeling, broken, hot-pressing, and the enzymolysis of sweet potato juice, filtration, the post processing of sweet potato juice can be adopted prior art.
Under 85-95 ℃ of condition, carry out hot-pressing after for example raw material Ipomoea batatas peeling, the fragmentation.
According to circumstances, it is too dried thick for fear of the potato slurry when Ipomoea batatas is broken, can when fragmentation, suitably add water, amount of water does not have strict restriction, but consider that the later stage need to concentrate, if amount of water is crossed conference and strengthened concentrated burden, the consumption of water is in weight ratio generally speaking, water: Ipomoea batatas=0.3-1.2: 1; Preferably use 40-60 ℃ demineralized water when adding water.
Sweet potato juice needs to sterilize as last at enzymolysis, as heat (95-120 ℃) more than 95 ℃, keep 30s, then cool off below 40 ℃, add enzyme to the 4-6 with the lemon acid for adjusting pH and carry out enzymolysis, enzymolysis can add carbohydrase, pectase and protease in the sweet potato juice and carry out enzymolysis, and enzymolysis can at room temperature carry out, for the activity that improves enzyme can suitably be heated to 40 ℃, enzymolysis time is 3-4 hour;
In weight ratio, need to carry out the sweet potato juice of enzymolysis: enzyme=1: 0.001-0.002; Enzyme described herein is carbohydrase, pectase and protease three weight sum, for the characteristics of Ipomoea batatas.That selects suitable carbohydrase, pectase and protease can take full advantage of and transform nutriment in the Ipomoea batatas with magnitude relation, the high glycoprotein concentrated sweet potato juice that obtains is also better on taste and color and luster, as preferably, the weight ratio of carbohydrase, pectase and protease is 2: 2: 1.
Add kieselguhr adsorption impurity after the sweet potato juice cooling behind the enzymolysis, carry out sterilization behind filtering diatomite and the impurity and (can adopt common processes, for example 90～100 ℃, keep 15～40s); Filtering diatomite can adopt centrifugal filtering.In weight ratio, diatomite: the sweet potato juice=0.002-0.005 behind the enzymolysis: 1; In order fully to allow kieselguhr adsorption impurity, after adding diatomite (food-grade), general about stirring action 1-4 hour; Filtration can and be produced next step product index and determine the filtering technique parameter according to the solid particle size.
The post processing of sweet potato juice can at first utilize cationic ion-exchange resin, removes the contained sodium ion of sweet potato juice again through acid adjustment, mixing, homogeneous, degassed, high-temperature instantaneous sterilization, cooling, can, obtains being rich in the sweet potato juice product of sweet potato dietary fiber.
Wherein said acid adjustment adopts citric acid to be adjusted to pH 3-4 usually.Described high-temperature instantaneous sterilization generally can at 105-120 ℃, keep 15-25s.
The present invention increases sweet potato skin and potato slag processing links in the concentrated sweet potato juice production procedure, sweet potato skin and the contained dietary fiber of potato slag (water-soluble dietary fiber and water insoluble dietary fiber) are at utmost isolated, and add in the concentrated clear juice, finally obtain high dietary-fiber concentrated sweet potato juice drink.
The present invention at utmost obtains the water-soluble dietary fibers such as pectin, glucan in the skin slag by high speed shear emulsification and alcohol precipitating method; And the water insoluble dietary fiber such as cellulose, hemicellulose, lignin and resistant starch, and with its join concentrated sweet potato clear in, produce the concentrated sweet potato juice product that is rich in dietary fiber, the product dietary fiber content reaches 95%, is conducive to absorption of human body.This processing links not only takes full advantage of waste material skin slag, has reduced the waste disposal cost, has improved simultaneously the nutritive value of product, and the present invention also is applicable to other high added value Juice production.
Description of drawings
Fig. 1 is high dietary-fiber concentrated sweet potato juice production method flow chart of the present invention.
The specific embodiment
Embodiment 1
Referring to Fig. 1,55 kilograms raw material sweet potato washing peeling is obtained the Ipomoea batatas of 5 kilograms of sweet potato skins and 50 kilograms of peelings, 50 kilograms of demineralized waters that add 60 ℃ in will the Ipomoea batatas of peeling carry out fragmentation, squeeze under 85 ℃ of conditions after broken and obtain respectively 55 kilograms of 45 kilograms of potato slags and sweet potato juices.
Sweet potato juice is heated to 95 ℃, keeps 25s to carry out sterilization, then is cooled to 30 ℃, with lemon acid for adjusting pH to 4, adds 0.022 kilogram in carbohydrase, 0.022 kilogram of pectase and proteinase-10 .011 kilogram, and enzymolysis is 3 hours under 40 ℃ of conditions.
Sweet potato juice cool to room temperature behind the enzymolysis adds 0.11 kilogram of stirring action of diatomite absorption in 2 hours impurity, is heated to 110 ℃ behind filtering diatomite and the impurity, keeps 15s to carry out sterilization and obtains 54.5 kilograms of sweet potato juices.
5 kilograms of sweet potato skins and 45 kilograms of merging of potato slag with obtaining previously add 200 kilograms in 50 ℃ of warm water, carry out ultrasonic extraction in ultrasonic extractor, and ultrasonic power is 1200W, temperature 60 C, 40 minutes time.
Backward 500 kilograms in the 50 ℃ of warm water that add are again finished in ultrasonic extraction, are 10% aqueous citric acid solution adjusting pH to 2 with mass percent concentration, the potato slag liquid after 60 ℃ of hydrolysis obtained being hydrolyzed in 120 minutes.
Potato slag liquid after utilizing high shearing mixing emulsor to be hydrolyzed carries out emulsification pretreatment, 30 minutes emulsification pretreatment time, obtains the potato slag liquid behind the emulsification pretreatment, the fibre length 0.1-6 micron in the potato slag liquid behind the emulsification pretreatment.
75 kilograms of the absolute ethyl alcohols that adds in the potato slag liquid behind the emulsification pretreatment, alcohol precipitation obtained supernatant and sediment in 40 minutes, supernatant is recycled respectively ethanol and Liquid Residue by heating, and sediment is crossed 100 mesh sieves, obtains totally 3.5 kilograms of the water-soluble fibres such as pectin, glucan; Recycled ethanol obtains absolute ethyl alcohol by further processing, repeatedly reuse.
Liquid Residue food-grade sodium acid carbonate, regulate pH 10, alkaline hydrolysis obtained alkali solution liquid in 60 minutes under the normal temperature condition, and with centrifugal under the alkali solution liquid 8000r/min condition, collecting precipitation (cellulose, hemicellulose, lignin and resistant starch) is crossed 100 mesh sieves and obtained totally 11 kilograms of non-soluble fibers.
Water-soluble fibre and non-soluble fiber all join the sweet potato juice that obtains containing dietary fiber in 54.5 kilograms the sweet potato juice, the sweet potato juice that will contain dietary fiber utilizes cationic ion-exchange resin to remove sodium ion, be adjusted to pH 4 then (120 ℃ of mixing, homogeneous, degassed, high-temperature instantaneous sterilizations with citric acid, keep 15s), cooling, can, obtain the concentrated sweet potato juice of high dietary-fiber.
Embodiment 2
55 kilograms raw material sweet potato washing peeling is obtained the Ipomoea batatas of 5 kilograms of sweet potato skins and 50 kilograms of peelings, 50 kilograms of demineralized waters that add 60 ℃ in will the Ipomoea batatas of peeling carry out fragmentation, squeeze under 90 ℃ of conditions after broken and obtain respectively 55 kilograms of 45 kilograms of potato slags and sweet potato juices.
Sweet potato juice is heated to 95 ℃, keeps 20s to carry out sterilization, then is cooled to 35 ℃, with lemon acid for adjusting pH to 5, adds 0.044 kilogram in carbohydrase, 0.044 kilogram of pectase and proteinase-10 .022 kilogram, and enzymolysis is 4 hours under 35 ℃ of conditions.
Sweet potato juice cool to room temperature behind the enzymolysis adds 0.22 kilogram of stirring action of diatomite absorption in 1.5 hours impurity, is heated to 100 ℃ behind filtering diatomite and the impurity, keeps 20s to carry out sterilization and obtains 54.6 kilograms of sweet potato juices.
5 kilograms of sweet potato skins and 45 kilograms of merging of potato slag with obtaining previously add 150 kilograms in 55 ℃ of warm water, carry out ultrasonic extraction in ultrasonic extractor, and ultrasonic power is 1200W, temperature 60 C, 40 minutes time.
Backward 700 kilograms in the 50 ℃ of warm water that add are again finished in ultrasonic extraction, are 10% aqueous citric acid solution adjusting pH to 2 with mass percent concentration, the potato slag liquid after 80 ℃ of hydrolysis obtained being hydrolyzed in 80 minutes.
Potato slag liquid after utilizing high shearing mixing emulsor to be hydrolyzed carries out emulsification pretreatment, 45 minutes emulsification pretreatment time, obtains the potato slag liquid behind the emulsification pretreatment, the fibre length 0.1-5 micron in the potato slag liquid behind the emulsification pretreatment.
90 kilograms of the absolute ethyl alcohols that adds in the potato slag liquid behind the emulsification pretreatment, alcohol precipitation obtained supernatant and sediment in 40 minutes, supernatant is recycled respectively ethanol and Liquid Residue by heating, and sediment is crossed 100 mesh sieves, obtains totally 3.52 kilograms of the water-soluble fibres such as pectin, glucan; Recycled ethanol obtains absolute ethyl alcohol by further processing, repeatedly reuse.
Liquid Residue food-grade sodium acid carbonate, regulate pH 10, alkaline hydrolysis obtained alkali solution liquid in 70 minutes under the normal temperature condition, and with centrifugal under the alkali solution liquid 8000r/min condition, collecting precipitation (cellulose, hemicellulose, lignin and resistant starch) is crossed 80 mesh sieves and obtained totally 12 kilograms of non-soluble fibers.
Water-soluble fibre and non-soluble fiber all join the sweet potato juice that obtains containing dietary fiber in 54.6 kilograms the sweet potato juice, the sweet potato juice that will contain dietary fiber utilizes cationic ion-exchange resin to remove sodium ion, be adjusted to pH 3.5 then (115 ℃ of mixing, homogeneous, degassed, high-temperature instantaneous sterilizations with citric acid, keep 20s), cooling, can, obtain the concentrated sweet potato juice of high dietary-fiber.
Embodiment 3
3 obtain the Ipomoea batatas of 4 kilograms of sweet potato skins and 40 kilograms of peelings with the peeling of 44 kilograms raw material sweet potato washing, 32 kilograms of demineralized waters that add 50 ℃ in will the Ipomoea batatas of peeling carry out fragmentation, squeeze under 85 ℃ of conditions after broken and obtain respectively 40 kilograms of 32 kilograms of potato slags and sweet potato juices.
Sweet potato juice is heated to 100 ℃, keeps 25s to carry out sterilization, then is cooled to 30 ℃, with lemon acid for adjusting pH to 4, adds 0.024 kilogram in carbohydrase, 0.024 kilogram of pectase and proteinase-10 .012 kilogram, and enzymolysis is 3 hours under 40 ℃ of conditions.
Sweet potato juice cool to room temperature behind the enzymolysis adds 0.2 kilogram of stirring action of diatomite absorption in 2 hours impurity, is heated to 110 ℃ behind filtering diatomite and the impurity, keeps 20s to carry out sterilization and obtains 39.5 kilograms of sweet potato juices.
4 kilograms of sweet potato skins and 32 kilograms of merging of potato slag with obtaining previously add 108 kilograms in 50 ℃ of warm water, carry out ultrasonic extraction in ultrasonic extractor, and ultrasonic power is 1200W, temperature 50 C, 40 minutes time.
Backward 540 kilograms in the 50 ℃ of warm water that add are again finished in ultrasonic extraction, are 10% aqueous citric acid solution adjusting pH to 2 with mass percent concentration, the potato slag liquid after 80 ℃ of hydrolysis obtained being hydrolyzed in 150 minutes.
Potato slag liquid after utilizing high shearing mixing emulsor to be hydrolyzed carries out emulsification pretreatment, 30 minutes emulsification pretreatment time, obtains the potato slag liquid behind the emulsification pretreatment, the fibre length 0.1-2.5 micron in the potato slag liquid behind the emulsification pretreatment.
76 kilograms of the absolute ethyl alcohols that adds in the potato slag liquid behind the emulsification pretreatment, alcohol precipitation obtained supernatant and sediment in 60 minutes, supernatant is recycled respectively ethanol and Liquid Residue by heating, and sediment is crossed 100 mesh sieves, obtains totally 2.95 kilograms of the water-soluble fibres such as pectin, glucan; Recycled ethanol obtains absolute ethyl alcohol by further processing, repeatedly reuse.
Liquid Residue food-grade sodium acid carbonate, regulate pH 10, alkaline hydrolysis obtained alkali solution liquid in 90 minutes under the normal temperature condition, and with centrifugal under the alkali solution liquid 8000r/min condition, collecting precipitation (cellulose, hemicellulose, lignin and resistant starch) is crossed 100 mesh sieves and obtained totally 9 kilograms of non-soluble fibers.
Water-soluble fibre and non-soluble fiber all join the sweet potato juice that obtains containing dietary fiber in 39.5 kilograms the sweet potato juice, the sweet potato juice that will contain dietary fiber utilizes cationic ion-exchange resin to remove sodium ion, be adjusted to pH 4 then (120 ℃ of mixing, homogeneous, degassed, high-temperature instantaneous sterilizations with citric acid, keep 15s), cooling, can, obtain the concentrated sweet potato juice of high dietary-fiber.
Claims (7)
1. the concentrated sweet potato juice production method of a high dietary-fiber, comprise and to obtain respectively potato slag and sweet potato juice behind the peeling of raw material sweet potato washing, fragmentation, the hot-pressing, sweet potato juice obtains sweet potato juice through enzymolysis, filtration, sweet potato juice obtains the concentrated sweet potato juice finished product through post processing, it is characterized in that, from described sweet potato skin and potato slag, extract dietary fiber, the dietary fiber that extracts is joined go in the lump post processing in the described sweet potato juice;
The step of extracting dietary fiber from sweet potato skin and potato slag is as follows:
(1) adds water in sweet potato skin and the potato slag and carry out ultrasonic extraction;
(2) add water after the ultrasonic extraction, regulate pH1.5-2 with citric acid, the potato slag liquid after 30-80 ℃ of hydrolysis obtained being hydrolyzed in 80-150 minute;
(3) the potato slag liquid after will being hydrolyzed carries out emulsification pretreatment, obtains the potato slag liquid behind the emulsification pretreatment of fibre length 0.1-6 micron;
(4) add absolute ethyl alcohol in the potato slag liquid behind the emulsification pretreatment, obtained supernatant and sediment in alcohol precipitation 30-60 minute, supernatant is recycled respectively ethanol and Liquid Residue by heating;
(5) sediment in the step (4) is crossed the 80-100 mesh sieve, obtain dietary fiber A; Liquid Residue in step (4) adds sodium acid carbonate, regulates pH at 10-12, obtains alkali solution liquid in alkaline hydrolysis 60-90 minute, and alkali solution liquid is centrifugal, and collecting precipitation is crossed the 80-100 mesh sieve and obtained dietary fiber B;
Described sweet potato juice successively through sterilization, regulate pH value, enzymolysis, diatomite removal of impurities, sterilization and obtain described sweet potato juice, the enzyme that wherein adopts during enzymolysis is carbohydrase, pectase and protease, enzymolysis time is 3-4 hour;
The post processing of described sweet potato juice is for utilizing cationic ion-exchange resin to remove sodium ion, through acid adjustment, mixing, homogeneous, degassed, sterilization, cooling, obtains the concentrated sweet potato juice finished product again.
2. concentrated sweet potato juice production method as claimed in claim 1 is characterized in that, in the step (1) during ultrasonic extract temperature 30-60 ℃, the time 30-40 of ultrasonic extraction minute.
3. concentrated sweet potato juice production method as claimed in claim 1 is characterized in that, add in sweet potato skin and the potato slag in the step (1) coolant-temperature gage 45-60 ℃, the weight of water be sweet potato skin and potato slag weight sum 3-5 doubly.
4. concentrated sweet potato juice production method as claimed in claim 1 is characterized in that, middle coolant-temperature gage 45-60 ℃ of adding of step (2), and the weight of water is sweet potato skin and potato slag weight sum 10-20 times.
5. concentrated sweet potato juice production method as claimed in claim 1 is characterized in that, in the step (4) absolute ethyl alcohol weight be behind the emulsification pretreatment potato slag liquid weight 8～13%.
6. concentrated sweet potato juice production method as claimed in claim 1 is characterized in that, in weight ratio, need to carry out the sweet potato juice of enzymolysis: enzyme=1: 0.001-0.002; Described enzyme is carbohydrase, pectase and protease three weight sum.
7. concentrated sweet potato juice production method as claimed in claim 6 is characterized in that, the weight ratio of described carbohydrase, pectase and protease is 2: 2: 1.
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| CN102204704B (en) * | 2011-05-25 | 2012-12-19 | 安徽砀山海升果业有限责任公司 | Preparation method of purple sweet potato juice |
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| JP7279017B2 (en) | 2017-08-11 | 2023-05-22 | カリフォルニア セーフ ソイル， エルエルシー | Agricultural admixture |
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| CN110150518A (en) * | 2019-05-14 | 2019-08-23 | 甘国华 | A kind of sweet potato health-preserving beverage and preparation method thereof |
| CN110200177A (en) * | 2019-07-09 | 2019-09-06 | 江苏师范大学 | A kind of Rhizoma Dioscoreae esculentae dietary fiber composite beverage and preparation method thereof |
| CN114223883A (en) * | 2021-12-29 | 2022-03-25 | 金寨县富东生态农业开发有限公司 | Production process of additive-free instant sweet potato chips |
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