CN105886577B - A kind of production method preparing high maltose syrup and dietary fiber using sweet potato starch processing waste residue - Google Patents
A kind of production method preparing high maltose syrup and dietary fiber using sweet potato starch processing waste residue Download PDFInfo
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- CN105886577B CN105886577B CN201610403333.8A CN201610403333A CN105886577B CN 105886577 B CN105886577 B CN 105886577B CN 201610403333 A CN201610403333 A CN 201610403333A CN 105886577 B CN105886577 B CN 105886577B
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- 244000017020 Ipomoea batatas Species 0.000 title claims abstract description 105
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- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 2
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- NOESYZHRGYRDHS-UHFFFAOYSA-N insulin Chemical compound N1C(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(NC(=O)CN)C(C)CC)CSSCC(C(NC(CO)C(=O)NC(CC(C)C)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CCC(N)=O)C(=O)NC(CC(C)C)C(=O)NC(CCC(O)=O)C(=O)NC(CC(N)=O)C(=O)NC(CC=2C=CC(O)=CC=2)C(=O)NC(CSSCC(NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2C=CC(O)=CC=2)NC(=O)C(CC(C)C)NC(=O)C(C)NC(=O)C(CCC(O)=O)NC(=O)C(C(C)C)NC(=O)C(CC(C)C)NC(=O)C(CC=2NC=NC=2)NC(=O)C(CO)NC(=O)CNC2=O)C(=O)NCC(=O)NC(CCC(O)=O)C(=O)NC(CCCNC(N)=N)C(=O)NCC(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC=CC=3)C(=O)NC(CC=3C=CC(O)=CC=3)C(=O)NC(C(C)O)C(=O)N3C(CCC3)C(=O)NC(CCCCN)C(=O)NC(C)C(O)=O)C(=O)NC(CC(N)=O)C(O)=O)=O)NC(=O)C(C(C)CC)NC(=O)C(CO)NC(=O)C(C(C)O)NC(=O)C1CSSCC2NC(=O)C(CC(C)C)NC(=O)C(NC(=O)C(CCC(N)=O)NC(=O)C(CC(N)=O)NC(=O)C(NC(=O)C(N)CC=1C=CC=CC=1)C(C)C)CC1=CN=CN1 NOESYZHRGYRDHS-UHFFFAOYSA-N 0.000 description 2
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- 150000002500 ions Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 210000002429 large intestine Anatomy 0.000 description 1
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- 150000002632 lipids Chemical class 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000845 maltitol Substances 0.000 description 1
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- VQHSOMBJVWLPSR-WUJBLJFYSA-N maltitol Chemical compound OC[C@H](O)[C@@H](O)[C@@H]([C@H](O)CO)O[C@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O VQHSOMBJVWLPSR-WUJBLJFYSA-N 0.000 description 1
- 229940035436 maltitol Drugs 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/22—Preparation of compounds containing saccharide radicals produced by the action of a beta-amylase, e.g. maltose
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12P—FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
- C12P19/00—Preparation of compounds containing saccharide radicals
- C12P19/12—Disaccharides
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K7/00—Maltose
-
- 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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- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Microbiology (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biotechnology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
Abstract
The invention discloses a kind of production methods that high maltose syrup and dietary fiber are prepared using sweet potato starch processing waste residue, comprising: (1) enzyme to size mixing: α-medium temperature amylase is added to potato slag according to potato slag content of starch and mixes；(2) gelatinization liquefaction: material heating heating, heat preservation after mixing carry out gelatinization liquefaction；(3) be saccharified: liquefied mass cools down rapidly, is saccharified；(4) it is separated by solid-liquid separation: by saccharified liquid is obtained by filtration and except starch potato slag after saccharification；(5) saccharified liquid removal of impurities, concentration, purification obtain high maltose syrup；Except starch potato slag is crushed, sieved and dried, dietary fiber is obtained.The present invention uses new fresh sweet potato slag, saccharification production high maltose syrup is carried out to the starch in potato slag using own beta amylase, reduce the use of enzyme, it simultaneously will be except the potato slag further processing production dietary fiber after starch, production cost is low, process flow simplifies, with strong points, is particularly suitable for promoting in sweet potato starch manufacturing enterprise.
Description
Technical field
The invention belongs to sweet potato dregs application technology as the second resource field and food processing fields, and in particular to a kind of useless with sweet potato
Slag is that raw material prepares high maltose syrup using itself beta amylase and extracts the production method of dietary fiber.
Background technique
Malt syrup is one kind of starch sugar, and main component is maltose.The mass fraction of total reducing sugar is accounted for according to maltose
Difference, malt syrup can be divided into malt syrup, high maltose syrup.50% or more maltose mass fraction can be described as malt syrup,
Maltose mass fraction can be described as high maltose syrup higher than 70%.Maltose sugariness is low, good hygroscopicity, is metabolized without insulin
It participates in, blood glucose rise will not be caused, be suitble to the patients such as diabetes, patient with operation, it can also be used to which sweetening agent is suitble to system
As light sweet taste type food.In addition high maltose syrup is also used as moisturizer, antistaling agent etc..High maltose syrup also has stabilization
The effect of proteinase activity has a wide range of applications in bioengineering field；High maltose syrup can be also used for maltitol, different
The raw material of maltose and crystalline maltose.The production of malt syrup at present is mainly raw using holoenzyme method by raw material of cornstarch
Production. art is concentrated by liquefaction, saccharification, decolorization filtering, exquisiteness, and the key enzyme being related to mainly includes high temperature resistant alphalise starch
Enzyme, beta amylase, fungal amylase, Pullulanase etc..
Dietary fiber refers to that the vegetalitas for not being digested and completely or partially fermenting in large intestine in human small intestine is edible
It mainly include polysaccharide, oligosaccharides, lignin and corresponding plants ingredient, dietary fiber with part or the general name of similar carbohydrate
To defaecation, reducing blood lipid, it is hypoglycemic have beneficial physiological action.
Sweet potato is commonly called as pachyrhizus, is important cereal crops.In China as people's living standard improves, sweet potato is as master
Food has dropped out the arena of history.But with going deep into for research, the healthcare function of sweet potato is constantly exploited, and meals are rich in especially in sweet potato
Eat fiber, a small amount of sweet potato people are eaten as health food now.Currently, high-volume sweet potato is formed sediment as raw material for sweet potato
Powder processing, Alcohol Production etc..
Sweet potato starch is mainly produced using fresh sweet potato.In sweet potato starch process, sweet potato is through crushing, screening, washing
Starch is extracted, while also generating a large amount of sweet potato dregs by-product, average 1 ton of finished product sweet potato starch of every production can generate 2.5~3 tons
Wet sweet potato dregs, for producing 10000 tons of sweet potato starch per year, every annual meeting generates about 2.5~3.0 ten thousand tons of wet sweet potato dregs.Because of sweet potato
Starch Production is produced using fresh sweet potato, and the process-cycle is short (the 2-3 month), so the potato slag enormous amount generated daily, and it is aqueous
Amount is high, perishable, and transport and preservation are all extremely difficult.Currently, small processing enterprise is directly directly handled aqueous potato dregs
It is abandoned to local peasant household for penkeeping or directly, environment is caused greatly to pollute.In recent years environmental issue increasingly causes
The attention of people, country also put into effect corresponding laws and regulations and are constrained, and waste water, waste residue problem, which have become, restricts sweet potato starch enterprise
The bottleneck of industry development.
Sweet potato starch generates the aqueous about 85-90% of potato slag generated in the process, also contains the residual of about 45-55% in dry
Stay starch.The relevant report of related potato slag utilized is to be prepared dietary fiber as raw material using potato slag or prepare feed etc. mostly,
As 102558386 A of patent CN provides a kind of method for extracting pectin using sweet potato waste residue: first with amylase and carbohydrase
By residual starch hydrolysis removal in potato slag, except the potato slag after starch prepares pectin with extractant extraction again；Patent CN
104187743 A provide a kind of method for preparing dietary fiber in sweet potato dregs: in the method removal potato slag being washed with water first
Then starch is crushed and is fermented, finally washing is produced.Both methods is all to carry out after removing starch to remaining residue
Extraction and application, the starch resource in sweet potato dregs are not utilized well.103421851 A of patent CN discloses a kind of benefit
With the method that sweet potato waste prepares ethyl alcohol: glucose mash is made after adding amylase and carbohydrase to carry out liquefying-saccharifying in potato slag,
Then ethyl alcohol is made in inoculation fermentation after purification, and the starch of potato slag is by being converted into ethyl alcohol in the present invention, but residual residue does not have
Obtain high-value-use.
Although the above method starts to be related to the development and utilization of sweet potato dregs, but the utilization for sweet potato dregs and insufficient, opens up
To the Processes For Effective Conversion of sweet potato dregs, the rational utilization for carrying out sweet potato dregs is still that current sweet potato starch of carrying out processes discarded potato slag
One vital task of comprehensive utilization.
Summary of the invention
The present invention characteristic with new fresh sweet potato slag itself in view of the deficiencies of the prior art, provides a kind of sweet potato starch process
The new way that the fresh potato slag reasonable resource of middle generation utilizes, present invention is primarily aimed at provide a kind of utilization sweet potato waste residue
Prepare the production method of high purity maltose and dietary fiber.
Specifically, the present invention relates to following technical schemes:
Firstly, a kind of method for preparing high maltose syrup and dietary fiber using sweet potato waste residue, includes the following steps:
(1) enzyme to size mixing: alpha-amylase (middle warm type) mixing is added to sweet potato dregs according to the content of starch in sweet potato dregs
It is even；
(2) it is gelatinized, liquefaction: the heating heating of sweet potato dregs feed liquid moment, heat preservation after step (1) mixing, progress feed liquid gelatinization,
Liquefaction；
(3) it is saccharified: step (2) liquefaction feed liquid being cooled down rapidly, heat preservation saccharification is carried out；
(4) it is separated by solid-liquid separation: saccharified liquid being obtained by filtration after saccharification and except starch potato slag；
(5) preparation of high maltose syrup and dietary fiber: the saccharified liquid that step (4) obtains cleans, is concentrated, purification acquisition is high
Pure malt syrup；The starch potato slag that removes of step (4) acquisition is sized mixing, is crushed, sieved and is dried, and dietary fiber is obtained.
The fresh potato slag that inventor generates the processing of sweet potato starch manufacturing enterprise is analyzed, the aqueous 80-90% of potato slag,
Residual starch in potato slag accounts for the 45-55% of potato slag dry, and protein content is about 3-6%；Wherein new fresh sweet potato slag contains higher
Beta amylase activity, enzyme activity 100-200U/g (aqueous potato slag).High beta amylase activity and remnants in fresh sweet potato waste residue
Starch prepares high purity maltose for sweet potato waste residue and provides foundation；
Secondly, being found by experimental study, the beta amylase in sweet potato dregs is resistant to 80- under the protective effect of potato slag
90 DEG C of high temperature, therefore during the gelatinization of sweet potato dregs high temperature, liquefaction sugaring, beta amylase is under the protective effect of substrate, in short-term
Between not by 80-90 DEG C of high-temperature inactivation, this provides the foundation to prepare high malt sugar using sweet potato waste residue enzymatic hydrolysis；
Further, warm type alpha-amylase carries out liquefaction pretreatment in selection, on the one hand, reduces condensing temperature, preferably
The activity for saving the beta amylase in potato slag, on the other hand, addition alpha-amylase first carries out the starch in potato slag preliminary
Hydrolysis, can greatly improve the hydrolysis efficiency of beta amylase and the yield of maltose.
In addition, producing the potato slag after maltose, starchiness removes substantially, and cellulosic content improves, it is only necessary to carry out simple
Processing can be obtained diet fiber product.
In preferred embodiment, step (1) is enzyme to size mixing are as follows: fresh sweet potato slag is conveyed into the storage with agitating device
In tank, alpha-amylase (middle warm type) is added according to the content of starch in sweet potato dregs, unlatching is uniformly mixed.
Specifically, sweet potato dregs described in preferred steps (1) are to produce during producing sweet potato starch by raw material of fresh pachyrhizus
Raw fresh sweet potato dregs, aqueous 80-90%.
Medium temperature alphalise starch is added after carrying out conversion dry according to moisture and content of starch in fresh sweet potato dregs in preferred steps (1)
Enzyme, alpha-amylase dosage be starch per ton add alpha-amylase 0.3-0.5kg (by Novi believe BAN480L medium temperature amylase for,
He is converted or referring to manufacturer's recommended the mesophilicα-diastase dosage of model with this).
In preferred embodiment, step (2) dextrin is turned to: the potato slag material moment heating after will be enzyme, then object
Material is by maintaining tank or pipe insulation.
Specifically, heating temperature is 80-90 DEG C in preferred steps (2), heating method includes but is not limited to injector heating,
Soaking time is 3-10min, controls DE value 15-30%.The control DE value 20-25% it is furthermore preferred that the present invention liquefies.
In preferred embodiment, step (3) saccharification are as follows: the potato slag after gelatinization liquefaction will be added to be conveyed into saccharifying tank, led to
It crosses heat exchange to cool down rapidly, then heat preservation saccharification 2-10h.
Specifically, being cooled to 55-65 DEG C in preferred steps (3) rapidly, heat preservation saccharification 2-10h controls DE value 45-55%.
Filtering includes but is not limited to plate-frame filtering in step (4) of the present invention.
In preferred embodiment, the removal of impurities of saccharified liquid described in step (5), concentration, purification obtains high maltose syrup can be with
It is realized by conventional technical means in the art, the filtering of the film as described in CN102586363A-ion exchange-chromatography point
From-condensing mode, specifically, the process of the removal of impurities of currently preferred saccharified liquid, concentration, purification are as follows: primary concentration-decoloration-
Ion exchange-secondary concentration, the specific process include:
Primary concentration: the saccharified liquid being obtained by filtration is subjected to three-effect evaporation and condensation；
Decoloration: the liquid glucose being once concentrated to get addition active carbon is decolourized；
Ion exchange: the liquid glucose after decolourizing removes active carbon through filtering, is then carried out using anion-cation exchange resin
Impurity and purification；
Secondary concentration: the saccharified liquid after ion exchange is cleaned obtains high-purity maltose after the concentration of triple effect concentrator
Slurry.
In preferred embodiment,
Method for concentration in enrichment process includes but is not limited to three-effect evaporation and condensation equipment, and liquid glucose is concentrated into mass body
Product concentration 20-30%.
Active carbon dosage in bleaching process is the 1-1.5% of solid content, 75-85 DEG C of bleaching temperature, bleaching time
20-40min。
Ion-exchange technique used in ion-exchange process is that resin cation-resin anion (R.A.)-resin cation is suitable
Sequence carries out, and wherein cation exchange resin uses but be not limited to 732 type cation exchange resins, and negative resin is used but is not limited to
D315 type anion exchange resin, liquid glucose collect control 150 μ s/cm of conductivity or less.
Secondary concentration is to solid content 75-85% in secondary concentration process.
In preferred embodiment, potato slag is sized mixing, is crushed, sieved and is dried after removing starch described in step (5), is obtained
Obtain the process of dietary fiber are as follows:
It sizes mixing: suitably water being added to size mixing the potato slag after separation liquid glucose；
Crush: potato slag carries out subtle crushing after sizing mixing；
Screening: smashed potato slag is crossed into 100-120 mesh；
It is dry: the screenings after sieving being dehydrated, is dried to obtain Rhizoma Dioscoreae esculentae dietary fiber product.
Specifically, in dietary fiber preparation process, potato slag adds water to size mixing to make it have mobility, and breaking method includes but not
It is limited to mechanical shearing method, grinding particle size is 50-150 microns；Drying mode includes but is not limited to pneumatic conveying drying.
In preferred embodiment, new fresh sweet potato slag (aqueous 80-90%) is added commodity alpha-amylase (middle warm type) and is warming up to
80-90 DEG C, keep 2-10min, be cooled to 60 ± 2 DEG C, keep the temperature 2-10 hour, be then separated by solid-liquid separation, liquid glucose decolourized, from
High maltose syrup is made after handing over removal of impurities, concentration, the potato slag after separating liquid glucose carries out subtle crushing after suitably water being added to mix well, cross 100-
Diet fiber product is made through dehydration and drying in 120 meshes, screenings.Process flow chart is shown in attached drawing 1.
Above-mentioned preferred embodiment is directed to high using the fresh sweet potato slag preparation of sweet potato starch processing generation for inventor
The technique of pure malt syrup advanced optimized is proposed above-mentioned excellent by the way that simulated experiment condition is carried out technique amplification and optimization
The process conditions of choosing.
The present invention achieve it is following the utility model has the advantages that
(1) side for a kind of sweet potato dregs comprehensive utilization of resources that the present invention combines the processing status of sweet potato starch enterprise to propose
Method: containing active higher beta amylase in fresh sweet potato, sweet potato dregs still have higher beta amylase vigor after separating starch, this
Invention generates maltose using the residual starch in the hydrolysis potato slag of beta amylase contained by fresh potato slag itself；After refining sugar simultaneously
Except the potato slag of starch is used to prepare dietary fiber, the full resource utilization for sweet potato dregs is realized.
(2) present invention discover that the beta amylase in sweet potato dregs is resistant to 80-90 DEG C of high temperature in the protective effect of substrate, because
This is gelatinized, in liquefaction process in potato slag starch high temperature, and the beta amylase short time will not be inactivated, and beta amylase can hydrolyze in potato slag
Starch generate maltose；Further, the present invention adds alpha-amylase (middle warm type) and passes through and sweet potato dregs itself beta amylase
Synergistic effect, the yield of beta amylase hydrolysis efficiency and maltose can be greatly improved, the malt syrup malt being prepared
Sugared content is high, and glucose content is low.
(3) present invention is saccharified using the beta amylase of itself in sweet potato dregs, without in addition addition beta amylase or very
Bacterium amylase uses enzyme cost to save, is conducive to the recycling of sweet potato dregs.
(4) technique of the present invention is to carry out technique amplification on simulated experiment conditioned basic and optimize to obtain, and is optimized
Technique afterwards is more favorable for sweet potato starch manufacturing enterprise and carries out production scale use.
(5) present invention using beta amylase in new fresh sweet potato slag by residual starch in sweet potato dregs be hydrolyzed into maltose prepare it is high-purity
Malt syrup, while remaining potato slag can continue processing and prepare dietary fiber etc., realize whole resource utilizations of sweet potato dregs, i.e.,
Cut down blowdown and brings huge economic benefit to enterprise again；The present invention will further be crushed except the potato slag after starch, be sieved,
Improve the palatability and quality of final gained Food fiber from sweet potato dregs.
Generally, the present invention uses new fresh sweet potato slag, is saccharified using wherein own beta amylase, reduces making for enzyme
With, while the recovery of starch of potato slag being utilized, production cost is low, simplification of flowsheet, and it is with strong points, it is particularly suitable for forming sediment in sweet potato
Powder manufacturing enterprise promotes.
Detailed description of the invention
The process flow chart of Fig. 1 selection process of the present invention
The malt syrup HPLC map that Fig. 2 embodiment 1 obtains
The malt syrup HPLC map that Fig. 3 embodiment 2 obtains
Specific embodiment:
Embodiment 1:
Take new fresh sweet potato slag 10kg (sweet potato starch processing generate, aqueous 88%, content of starch 52.5% (butt), β-starch
Enzyme activity 156U/g fresh sweet potato slag), alpha-amylase (Novi believes BAN480L) 0.3g/ kilograms of starch is added and is heated to after mixing evenly
80-85 DEG C, 5min is kept the temperature, measurement DE value is 15.8%, is cooled to 63 ± 2 DEG C, measurement DE value reaches after heat preservation saccharification 5 hours
49.6%, filtering, filter residue is washed with a small amount, merging filtrate, amounts to 13.2L, solid content 4.4%, and liquid glucose is concentrated under reduced pressure
It is 20% to solid content.Concentration liquid glucose adds active carbon 6g, is warming up to 80 DEG C, heat preservation decoloration 30min.Liquid glucose after decoloration into
Row ion exchange uses resin to clean for sun-male-female sequence, and resin cation selects 732 type cation exchange trees
Rouge, resin anion (R.A.) select D315 type anion exchange resin, the 150 μ s/cm of conductance or less of control outflow liquid glucose.Ion exchange
It is 85% that liquid glucose afterwards, which is concentrated under reduced pressure into solid content, total to obtain malt syrup 0.71L.Maltose content is detected through HPLC
Reach 81.6%, glucose content 0.5% (see Fig. 2).Sweet potato dregs after separation liquid glucose add water to size mixing, and (aqueous about 95%) is laggard
The subtle crushing of row, smashed potato slag sieve with 100 mesh sieve, and the oversize return after sieving is sized mixing, then carries out subtle crushing, again mistake
100 meshes, the potato slag after merging sieving carry out heated-air drying, diet fiber product 580g, water content 8% are obtained after drying.
Embodiment 2:
Taking new fresh sweet potato slag 15kg, (sweet potato starch processing generation, aqueous 89%, content of starch 48.5%, beta amylase is lived
138U/g), alpha-amylase (Novi believes BAN480L) 0.4g/ kilograms of starch is added and is heated to 80-85 DEG C after mixing evenly, protects
Warm 8min, measurement DE value are 21.4%, are cooled to 60 DEG C, and measurement DE value reaches 51.6% after heat preservation saccharification 8 hours, filters, filter
Slag is washed with water, and there are filtrate 18L, solid content 4.2%, and liquid glucose is concentrated under reduced pressure into solid content 20%.Liquid glucose is concentrated
Add active carbon, heat preservation decoloration.Liquid glucose after decoloration carries out ion exchange, the 150 μ s/cm of conductance or less of control outflow liquid glucose.From
It is 78% that liquid glucose after son exchange, which is concentrated under reduced pressure into solid content, total to obtain malt syrup 0.93L.Malt is detected through HPLC
Sugared content reaches 83.2%, glucose content 0.9% (see Fig. 3).Sweet potato dregs after saccharification carry out subtle crushing after adding water to size mixing,
Smashed potato slag crosses 120 meshes, and the oversize return after sieving is sized mixing, and carries out subtle crushing again, crosses 120 meshes again,
Potato slag after merging sieving carries out heated-air drying, and diet fiber product 750g, water content 8% are obtained after drying.
Embodiment 3:
New fresh sweet potato slag 15kg (aqueous 89%, content of starch 49.8%, beta amylase 191U/g living) is taken, alpha-amylase is added
(Novi believes BAN480L) 0.5g/ kilograms of starch is heated to 80-85 DEG C, heat preservation liquefaction 4min after mixing evenly, and measurement DE value is
28.5%, 60 DEG C are cooled to, measurement DE value reaches 50.2% after heat preservation saccharification 2 hours, saccharified liquid is obtained by filtration, liquid glucose is concentrated into
After solid content is 20% plus active carbon heat preservation is decolourized.Liquid glucose after decoloration carries out ion exchange, the electricity of control outflow liquid glucose
Lead 150 μ s/cm or less.It is 80% that liquid glucose after ion exchange, which is concentrated into solid content,.It is reached through HPLC detection maltose content
To 83.1%, glucose content 0.6%.Sweet potato dregs after saccharification carried out after adding water to size mixing it is subtle smash it through 120 meshes, it is dry
After obtain diet fiber product 780g, water content 7.5%.
Embodiment 4:
New fresh sweet potato slag 15kg (aqueous 90%, content of starch 46.8%, beta amylase 121U/g living) is taken, alpha-amylase is added
(Novi believe BAN480L) 0.4g/ kilograms of starch, after be warming up to 80-85 DEG C of heat preservation liquefaction, it is 24.0% that 6min, which measures DE value, is dropped
Temperature is saccharified to 60 DEG C, and DE value is measured after 10 hours and reaches 48.5%, saccharified liquid is obtained by filtration.Liquid glucose be concentrated rear decoloring, from
Son exchange removal of impurities.It is 80% that liquid glucose after removal of impurities, which is concentrated into solid content,.Reach 83.8% through HPLC detection maltose content,
Glucose content 0.9%.Sweet potato dregs after saccharification carried out after adding water to size mixing it is subtle smash it through 120 meshes, obtain meals after dry
Eat fiber product 760g, water content 8%.
Embodiment 5:
New 20 tons of fresh sweet potato slag (sweet potato starch processing generates, and aqueous 88%, content of starch 50.6%, beta amylase 167U/ living
G), then new fresh sweet potato slag is conveyed into storage tank, alpha-amylase (Novi believes BAN480L) 0.5g/ kilograms of starch is added, stirring is equal
Even, potato slag charge liquid moment after using injector will be enzyme heats up (injection temperation is for 90 DEG C), then material by maintenance tank or
Pipe insulation 4min.Measuring DE value is 20.5%, and the potato slag after gelatinization liquefaction will be added to be conveyed into saccharifying tank, fast by heat exchange
Speed is cooled to 60 DEG C, and measurement DE value reaches 51.3% after heat preservation saccharification 6 hours, terminates saccharification, and material passes through plate-frame filtering filters pressing,
Add water to rinse filter cake, obtains filtrate and amount to 20m3, solid content 5.8%, liquid glucose is concentrated into solid content through triple effect concentrator and contains
Amount is 23%.Concentration liquid glucose adds active carbon 16kg, is warming up to 80 DEG C, heat preservation decoloration 30min.Liquid glucose after decoloration carries out ion friendship
It changes, resin is used to clean for sun-male-female sequence, resin cation selects 732 type cation exchange resins, anion
Resin selects D315 type anion exchange resin, the 150 μ s/cm of conductance or less of control outflow liquid glucose.Liquid glucose after ion exchange
Being concentrated into solid content through triple effect concentrator is 80%, reaches 82.6% through HPLC detection maltose content, glucose contains
Amount 0.4%.Sweet potato dregs after saccharification carried out after adding water to size mixing it is subtle smash it through 120 meshes, unsifted potato slag return is sized mixing
Continue subtle crushing, cross 120 meshes again, the potato slag plate frame filtering means dehydration after merging sieving, dewatered potato slag carries out
Pneumatic conveying drying obtains diet fiber product, water content 12.5%.
Embodiment 6:
New fresh sweet potato slag (sweet potato starch processing generates, aqueous 90%, content of starch 49.3%, beta amylase 152U/g living) warp
Pipeline enters in storage tank, and alpha-amylase (Novi believe BAN480L) 0.3g/ kilograms of starch is added, after stir evenly, using injection
Device injection heating (injection temperation is 80 DEG C), then for material by maintaining tank heat preservation, it is 21.6% that 10min, which measures DE value,.Then
60 DEG C are cooled to, measurement DE value reaches 48.3% after heat preservation saccharification 6 hours, the potato after plate-frame filtering obtains liquid glucose and saccharification
Slag, the concentrated equipment of liquid glucose are concentrated into after solid content is 25% and carry out active carbon decoloration, and the liquid glucose after decoloration carries out ion
Exchange controls 150 μ s/cm of conductance or less.It is 82% that liquid glucose after ion exchange, which is concentrated into solid content,.Wheat is detected through HPLC
Bud sugared content reaches 82.6%, glucose content 0.5%.Sweet potato dregs after saccharification carry out subtle smash it through after adding water to size mixing
The potato slag return of 120 meshes, oversize is sized mixing the stage, and screenings is dehydrated, is dried to obtain diet fiber product, water content
12.3%.
Case 7:
New fresh sweet potato slag (sweet potato starch processing generates, aqueous 90%, content of starch 50.7%, beta amylase 156U/g living) warp
Pipeline enters in storage tank, and alpha-amylase (Novi believes BAN480L) 0.4g/ kilograms of starch, after mixing evenly injection heating is added
(injection temperation is 85 DEG C), then material measures DE value 23.1% by maintaining tank to keep the temperature 5min.Then 60 DEG C are cooled to, is protected
Measurement DE value reaches 53.5% after temperature saccharification 8 hours, the potato slag after plate-frame filtering obtains liquid glucose and saccharification, after liquid glucose concentration
Carry out active carbon decoloring, ion exchange removal of impurities.It is 79% that the liquid glucose of removal of impurities, which is concentrated into solid content, detects maltose through HPLC
Content reaches 82.5%, glucose content 0.6%.Sweet potato dregs after saccharification carry out subtle smashing it through 120 mesh after adding water to size mixing
The potato slag return of sieve, oversize is sized mixing the stage, and screenings is dehydrated, is dried to obtain diet fiber product, water content 11.8%.
Case 8:
New fresh sweet potato slag (sweet potato starch processing generates, aqueous 88%, content of starch 49.9%, beta amylase 193U/g living) warp
Pipeline enters in storage tank, and alpha-amylase (Novi believes BAN480L) 0.5g/ kilograms of starch, after mixing evenly injection heating is added
(injection temperation is 88 DEG C), then material measures DE value 20.6%, is then cooled to 60 DEG C, protect by maintaining tank to keep the temperature 3min
Measurement DE value reaches 49.8% after temperature saccharification 3 hours, the potato slag after plate-frame filtering obtains liquid glucose and saccharification, after liquid glucose concentration
Carry out active carbon decoloring, ion exchange removal of impurities.It is 85% that the liquid glucose of removal of impurities, which is concentrated into solid content,.Maltose is detected through HPLC
Content reaches 81.6%, glucose content 0.8%.Sweet potato dregs after saccharification carry out subtle smashing it through 120 mesh after adding water to size mixing
The potato slag return of sieve, oversize is sized mixing the stage, and screenings is dehydrated, is dried to obtain diet fiber product, water content 11.6%.
Above-mentioned, although specific embodiments of the present invention have been described, not to the limit of the scope of the present invention
System, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art do not need to pay
The various modifications or changes that creative work can be made out are still within protection scope of the present invention.
Claims (9)
1. a kind of method for preparing high maltose syrup and dietary fiber using sweet potato starch processing waste residue, includes the following steps:
(1) enzyme to size mixing: α-medium temperature amylase being added to sweet potato dregs according to the content of starch in sweet potato dregs and is uniformly mixed；
(2) gelatinization liquefaction: the heating heating of sweet potato dregs feed liquid moment, heat preservation after step (1) mixing carry out feed liquid and are gelatinized liquefaction；
(3) it is saccharified: step (2) liquefaction feed liquid being cooled down rapidly, heat preservation saccharification is carried out；
(4) it is separated by solid-liquid separation: by saccharified liquid is obtained by filtration and except starch potato slag after saccharification；
(5) preparation of high maltose syrup and dietary fiber: the saccharified liquid that step (4) obtains cleans, concentration, refines the high malt of acquisition
Syrup；The starch potato slag that removes of step (4) acquisition is sized mixing, is crushed, sieved and is dried, and dietary fiber is obtained；
Heating temperature is 80-90 DEG C in step (2), and heating method includes but is not limited to injector heating, soaking time 3-
10min。
2. the method according to claim 1, wherein fresh sweet potato dregs are according to moisture and content of starch in step (1)
α-medium temperature amylase is added after carrying out conversion dry, α-medium temperature amylase dosage is that starch per ton adds alpha-amylase 0.3-0.5kg.
3. the method according to claim 1, wherein liquefaction control DE value 15-30% in step (2).
4. heat preservation is saccharified the method according to claim 1, wherein being cooled to 55-65 DEG C in step (3) rapidly
2-10h controls DE value 45-55%.
5. the method according to claim 1, wherein filtering includes but is not limited to plate-frame filtering in step (4).
6. the method according to claim 1, wherein saccharified liquid described in step (5) cleans, concentration, refines and obtains
The process for obtaining high maltose syrup includes: primary concentration-decoloration-ion exchange-secondary concentration, wherein primary concentration: incited somebody to action
Obtained saccharified liquid is filtered to be concentrated；Decoloration: the liquid glucose being once concentrated to get addition active carbon is decolourized；Ion exchange:
Liquid glucose after decolourizing removes active carbon through filtering, then carries out impurity and purification using anion-cation exchange resin；Secondary concentration:
High maltose syrup is obtained after saccharified liquid after ion exchange is cleaned is concentrated.
7. according to the method described in claim 6, it is characterized in that, the method for concentration in primary concentration includes but is not limited to triple effect
Evaporation concentration equipment, liquid glucose are concentrated into mass-volume concentration 20-30%；Active carbon dosage in decoloration is the 1- of solid content
1.5%, 75-85 DEG C of bleaching temperature, bleaching time 20-40min；
Ion-exchange technique used in ion exchange is that resin cation-resin anion (R.A.)-resin cation sequence carries out,
Middle cation exchange resin uses but is not limited to 732 type cation exchange resins, negative resin use but be not limited to D315 type yin from
Sub-exchange resin, liquid glucose collect control 150 μ s/cm of conductivity or less；Secondary concentration is to solid content 75- in secondary concentration
85%.
8. the method according to claim 1, wherein except starch potato slag is crushed, sieved and done in step (5)
Dry process are as follows: size mixing: suitably water is added to size mixing the potato slag after separation liquid glucose；Crush: potato slag carries out subtle crushing after sizing mixing；
Screening: smashed potato slag is crossed into 100-120 mesh；It is dry: the screenings after sieving being dehydrated, is dried to obtain sweet potato meals
Eat fiber product.
9. high malt sugar or dietary fiber that any one of -8 preparation methods are prepared according to claim 1.
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| CN108754035B (en) * | 2018-04-19 | 2022-04-12 | 华南师范大学 | Method for preparing maltose by sweet potato self-hydrolysis |
| CN110236152A (en) * | 2019-07-22 | 2019-09-17 | 烟台麦特尔生物技术有限公司 | A kind of low sugar concentration sweet potato juice extraction method |
| CN114592018A (en) * | 2020-12-03 | 2022-06-07 | 江苏省奥谷生物科技有限公司 | Production method for preparing high maltose syrup and dietary fiber by using corn starch processing waste residues |
| CN113383966A (en) * | 2021-06-23 | 2021-09-14 | 北京市农业技术推广站 | Sweet potato processing and utilizing method |
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