CN109329950A - A kind of preparation method and application of green alga activation dietary fiber - Google Patents
A kind of preparation method and application of green alga activation dietary fiber Download PDFInfo
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- CN109329950A CN109329950A CN201810946401.4A CN201810946401A CN109329950A CN 109329950 A CN109329950 A CN 109329950A CN 201810946401 A CN201810946401 A CN 201810946401A CN 109329950 A CN109329950 A CN 109329950A
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- 235000013325 dietary fiber Nutrition 0.000 title claims abstract description 71
- 230000004913 activation Effects 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 238000001035 drying Methods 0.000 claims abstract description 4
- 235000013376 functional food Nutrition 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000001556 precipitation Methods 0.000 claims abstract description 4
- 238000010298 pulverizing process Methods 0.000 claims abstract description 4
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- 238000004321 preservation Methods 0.000 claims abstract description 3
- 235000021067 refined food Nutrition 0.000 claims abstract description 3
- 238000000926 separation method Methods 0.000 claims abstract description 3
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- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
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- IAOZJIPTCAWIRG-QWRGUYRKSA-N aspartame Chemical compound OC(=O)C[C@H](N)C(=O)N[C@H](C(=O)OC)CC1=CC=CC=C1 IAOZJIPTCAWIRG-QWRGUYRKSA-N 0.000 description 1
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- 230000000968 intestinal effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 235000013622 meat product Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
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- 239000011707 mineral Substances 0.000 description 1
- 235000019412 neotame Nutrition 0.000 description 1
- HLIAVLHNDJUHFG-HOTGVXAUSA-N neotame Chemical compound CC(C)(C)CCN[C@@H](CC(O)=O)C(=O)N[C@H](C(=O)OC)CC1=CC=CC=C1 HLIAVLHNDJUHFG-HOTGVXAUSA-N 0.000 description 1
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- 239000002245 particle Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
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- 235000013406 prebiotics Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
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- 235000020185 raw untreated milk Nutrition 0.000 description 1
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- 239000002002 slurry Substances 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
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- 238000012859 sterile filling Methods 0.000 description 1
- 235000019411 steviol glycoside Nutrition 0.000 description 1
- 229930182488 steviol glycoside Natural products 0.000 description 1
- 150000008144 steviol glycosides Chemical class 0.000 description 1
- 235000019202 steviosides Nutrition 0.000 description 1
- 235000019408 sucralose Nutrition 0.000 description 1
- BAQAVOSOZGMPRM-QBMZZYIRSA-N sucralose Chemical compound O[C@@H]1[C@@H](O)[C@@H](Cl)[C@@H](CO)O[C@@H]1O[C@@]1(CCl)[C@@H](O)[C@H](O)[C@@H](CCl)O1 BAQAVOSOZGMPRM-QBMZZYIRSA-N 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
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- 235000015099 wheat brans Nutrition 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
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- 235000010447 xylitol Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L33/00—Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
- A23L33/20—Reducing nutritive value; Dietetic products with reduced nutritive value
- A23L33/21—Addition of substantially indigestible substances, e.g. dietary fibres
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
- A23P30/30—Puffing or expanding
- A23P30/32—Puffing or expanding by pressure release, e.g. explosion puffing; by vacuum treatment
- A23P30/34—Puffing or expanding by pressure release, e.g. explosion puffing; by vacuum treatment by extrusion-expansion
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Mycology (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
Abstract
It is specific as follows the invention discloses a kind of preparation method of green alga dietary fiber: will to be crushed after green alga cleaning removal of impurities；Impregnate swelling fixation；After cleaning plus alkali heat preservation digests；It is stood overnight after being diluted with water, filtering is separated by solid-liquid separation；Clarified solution is dried after alcohol precipitation is concentrated, as water-soluble dietary fiber；Filter residue is bleached, cleans explosion puffing drying, as water insoluble dietary fiber after squeezing simultaneously；After pulverizing after 2 kinds of dietary fibers are mixed in proportion, green alga activation dietary fiber is obtained.This method extraction efficiency is high, operating procedure is simple, exploitativeness is strong, cost is relatively low, and mass disposal green alga is suitble to prepare dietary fiber, and it is activated after product function activity and mouthfeel be improved, can be applied to processed food in functional food.
Description
Technical field
The present invention relates to dietary fiber technical field, in particular to a kind of green alga activates the preparation method of dietary fiber and answers
With.
Background technique
Such as sea lettuce, Enteromorpha, reef film, caulerpa, Codiumfragile(sur.) Hariot. are edible economic green alga in Chlorophyta (Chlorophyta),
It is widely distributed in China Huang Bohai Sea and southeastern coast bank region.Its polysaccharide rich in, cellulose, hemicellulose, albumen
Matter and microelement etc. are the quality raw materials for producing dietary fiber.Compared to the dietary fiber in terrestrial plant source, green alga diet
Also contain higher mucoitin sulfate in fiber, with its heparan design feature with unique anticoagulant equal physiological activity.Diet
Fiber have weight-reducing, reducing blood lipid, hypoglycemic and defaecation and other effects, be known as in the world in addition to water, protein, carbohydrate, lipid,
" the 7th nutrient " except vitamin, the big nutrient of minerals 6.
Water-soluble dietary fiber (SDF) and water insoluble dietary fiber can be divided into according to the dissolubility of dietary fiber in water
(IDF) two major classes, SDF are conducive to improve retention ability and oil absorption, increase viscosity, can reduce blood glucose and blood plasma in physiological function
Cholesterol levels influence glycolipid metabolism and prebiotic meta function；IDF then has higher porosity and expansive force, improves satiety, increases
Add intestinal transport ability, therefore the composition ratio of SDF and IDF is a weight for influencing physiological function of diet fiber in dietary fiber
Want factor.Food and Nutrition Committee of the U.S. suggests that SDF should account for the 20-30% of daily dietary fiber intake, Britain's nutrition
Family Baghur.P etc. proves that the dietary fiber that SDF and IDF ratio is 1:3 forms, the textures such as expansive force, retention ability and oil absorption
Activity index compares balance.A large number of studies show that SDF and IDF ratio is about 2~4:1 in the dietary fiber of natural green-alga, it is remote low
In desired proportions, expansive force is low, oil absorption is weak, mouthfeel is viscous, and activity is single, is to hinder dietary fiber widely applied main
Factor.It is 1:3-1:5, optimization physiology of balance activity and matter therefore, it is necessary to improve IDF content to SDF and IDF ratio by allotment
Structure characteristic, while improving its physiological activity and taste flavor using activation modification technology.
Dietary fiber activation modification technology at present, mainly based on bioanalysis, chemical cleavage method and physical activation method, optimization
The texture characteristic and physiological activity of dietary fiber, improve product taste flavor at deodorization deodorant.Cost is relatively low for chemical method, but soda acid
Processing makes expansive force and retention ability loss and quality is low；Biofermentation and enzymatic isolation method react mild but higher cost, complex procedures；
It is then had a wide range of applications in biomass economy field using physical methods such as micronization, thermophilic digestion, extrusions.
Such as a kind of patent CN1413518 preparation for disclosing seaweed diet fiber and the application in fillings, wherein utilizing
Filter residue after alkali process degumming is that raw material extracts, and gained almost all is IDF, and product physiological activity is single, water-soluble low, mouth
Feel more coarse.If patent CN101664166 discloses a kind of seaweed high-activity dietary fiber and its production method, life is used
Discarded algae-residue liquid is raw material during producing seaweed glue, and predominantly IDF utilizes enzymic degradation part macromolecular dietary fiber.It compares
Physical method, enzymolysis efficiency is low, process is more, at high cost；A large amount of sodium chloride are added in patent converts alginate to by calcium salt
Sodium alginate activation, to improve dissolubility, is also easy to produce a large amount of industrial alkaline waste water；SDF made from substep and IDF are pressed in patent
5%:95% compounding, compares desired proportions 1:3, SDF ratio is lower.As Enteromorpha diet disclosed in CN201310496985 authorization is fine
Preparation method is tieed up, using Enteromorpha juicing to extract gained is mainly SDF, and main component IDF is not utilized in Enteromorpha, is caused
The wasting of resources, product function are single.
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of preparation method and application of green alga activation dietary fiber,
Improve texture spy by scientific allocation SDF and IDF ratio, using extrusion and ultramicro grinding coupling activating technology to reach
Property, improve the purpose of its bioactivity and palatability.
In order to achieve the above objectives, technical scheme is as follows:
A kind of preparation method of green alga activation dietary fiber, includes the following steps:
(1) green alga crushes, cleans, and removes impurity and frond salt surfactant；
(2) after extrusion dehydration, fixer fixation swelling treatment is selected；
(3) after green alga is rinsed, the Na of 0.5-1.5% is added2CO3, 40-50 DEG C of heat preservation digest 2-5 hours to thick；
(4) dilution is added water and stirred, is down to after being stored at room temperature overnight, filtering is separated by solid-liquid separation, and obtains clarified solution and filter residue respectively；
(5) after clarified solution concentration, alcoholic solution is added, until alcoholic strength is that 60-75% stands overnight alcohol precipitation after mixing evenly；
(6) alcohol hypostasis washs, and coarse powder is water-soluble dietary fiber after drying, spare；
(7) filter residue obtained by step (4) is added 0.2-0.8% liquor natrii hypochloritis, rinses after stirring bleaching to no chlorine
Taste；
(8) after press dewatering, filter residue carries out expanding treatment, is then dried to moisture content≤10%, as water-insoluble
Dietary fiber, it is spare；
(9) water-soluble dietary fiber and water insoluble dietary fiber are uniformly mixed by weight 1:3-1:5, through Ultramicro-powder
Sieving after broken obtains green alga activation dietary fiber.
In above scheme, the green alga is one or more of sea lettuce, Enteromorpha, reef film, caulerpa, Codiumfragile(sur.) Hariot., including dry
Product or fresh green alga.
In above scheme, the fixer be mass concentration be 0.2-1% glutaraldehyde solution, 0.2-0.5% lemon
The acetum of acid or 0.2-0.5% are one such or a variety of.
In above scheme, the alcoholic solution is methanol or ethanol solution.
In above scheme, the expanding treatment is set using twin-screw extruder or three screw extrusion machines, condition
It is set to 110-130 DEG C of proparea, 120-150 DEG C of middle area, 150-180 DEG C of back zone, revolving speed 60-150r/min.
In above scheme, described pulverize uses air-stream type ultrafine pulverizer or vibration type ultramicro disintegrator.
A kind of application of the green alga activation dietary fiber in processed food and functional food.Major domain has: (1) processing food
Category such as beverage, dairy products, Flour product and meat products improve its texture and flavor, improve its nutritive value；(2) functional food
Class: it is needed for weight-reducing, constipation and " three high " crowd.
Through the above technical solutions, the preparation method of green alga provided by the invention activation dietary fiber using expanding treatment and
Superfine communication technique respectively obtains SDF and IDF, and then both rational allocations ratio can optimize texture characteristic, enhance its physiology
Effect.
Expanding treatment can combine the operations such as homogeneous, broken, sterilization and curing together, and process contamination is few, low energy consumption.Through
Dietary fiber is in porous structure after processing, and absorption property enhances, and dietary fiber molecular scission improves the texture characteristics such as oil absorption,
There are also good deodorant deodorization functions for puffing process, improve green algae product special flavour.
Dietary fiber can be crushed to 150-300 mesh by ultramicro grinding, and the smaller then specific surface area of granularity is bigger, retention ability
It is increased accordingly with dilatancy, the performance of physiological function is also more significant.In addition, micronization can also improve dietary fiber script
Rough mouthfeel, to widen its application range in the food industry.
Preparation method provided by the invention has actively beneficial technical effect:
(1) dietary fiber recovery rate is up to 75% or so in the present invention, and total dietary fiber, should up to 95% in product
Method had both improved the comprehensive utilization ratio of raw material, also avoided bringing problem of environmental pollution；
(2) in the present invention after ultramicro crushing treatment, 200 mesh percent of pass about 98%, activation dietary fiber partial size is reduced to
80 μm hereinafter, the increase of its specific surface area, improves its texture characteristic and mouthfeel, material color, smell are good；
(3) present invention improves 28%, expansive force and improves 36% by extrusion and micronization processes, oil absorption, texture
Characteristic is improved；
(4) present invention carries out scientific allocation to the green alga dietary fiber after activation, until SDF and IDF ratio is 1:3-1:5,
Product retention ability reaches 34.0mL/g up to 26.2g/g, oil absorption up to 28.5g/g, expansive force, and product viscosity reduces, mouthfeel is moderate, inhales
Oiliness and expansive force improve, and every texture characteristic, which is able to balance, to be improved, and then influences its weight-reducing, reducing blood lipid, hypoglycemic and defaecation
Equal physiological functions, improve the application effect of product.
(5) process of the invention is easy, is suitable for industrialized production, has important application value.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.
Fig. 1 is a kind of preparation method flow diagram of green alga activation dietary fiber disclosed in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description.
Embodiment one:
A kind of preparation method of green alga activation dietary fiber, includes the following steps:
(1) clean green alga Enteromorpha dry product is selected, 80 meshes were crushed to, washes with water enteromorpha powder, removes impurity and frond
Salt surfactant；
(2) after extrusion dehydration, 0.5% glutaraldehyde and 0.2% citric acid solution for being added 10 times of raw material weight impregnate fixation
Swelling 1 hour；
(3) after Enteromorpha rinses, 10 times of raw material weight of 1% Na is added2CO3Solution digests 3 hours at 40 DEG C to sticky
Shape；
(4) plus 4 times of water of raw material weight stir 15min, be down to 20 DEG C stand overnight after, the filtering of 300 mesh, respectively clarified solution
And filter residue；
(5) clarified solution is concentrated into 1/4 volume, and 4 times of 95% ethyl alcohol of volume are at the uniform velocity added, and after stirring 15min, stands overnight alcohol
It is heavy；
(6) alcohol hypostasis is with 50% ethanol washing 2 times, is water-soluble dietary fiber after coarse crushing after filters pressing is dried, standby
With；
(7) after the washing of filter residue clear water obtained by step (4), 5 times of raw material weight of 0.4% liquor natrii hypochloritis stirring is added
3h, rinsing is to no chlorine flavor after filter-press dehydration；
(8) filter residue carries out expanding treatment (condition setting are as follows: 120 DEG C of proparea, middle area 135 using twin-screw extruder
DEG C, 170 DEG C of back zone, revolving speed 90r/min), it is then dried to moisture content≤10%, as water insoluble dietary fiber, it is spare；
(9) water-soluble dietary fiber and water insoluble dietary fiber are uniformly mixed by 1:3,200 is crossed after pulverizing
Mesh obtains green alga Enteromorpha activation dietary fiber.
Embodiment two:
A kind of preparation method of green alga activation dietary fiber, includes the following steps:
(1) green alga ulva for selecting fresh clean is got frond surface impurity express developed, is first rubbed, and then plus 3 times of water are through colloid
Grind thick slurry, water temperature≤5 DEG C；
(2) it is 0.3% that glutaraldehyde solution, which is added, and is adjusted to concentration, impregnates fixation and is swollen 20min, temperature≤5 DEG C；
(3) it is washed 2 times after filters pressing, 3 times of raw material weight of 0.7% Na is added2CO3Solution digests 3 hours extremely at 40 DEG C
It is thick；
(4) plus 3 times of water of raw material weight stir 15min, be down to 20 DEG C stand overnight after, the filtering of 300 mesh, respectively clarified solution
And filter residue；
(5) clarified solution is concentrated into 1/4 volume, and at the uniform velocity addition ethyl alcohol to alcoholic strength after stirring 15min, was stood up to 65%
Night alcohol precipitation；
(6) alcohol hypostasis is with 50% ethanol washing 2 times, is water-soluble dietary fiber after coarse crushing after filters pressing is dried, standby
With；
(7) after the washing of filter residue clear water obtained by step (4), 5 times of raw material weight of 0.4% liquor natrii hypochloritis stirring is added
3h, rinsing is to no chlorine flavor after filter-press dehydration；
(8) filter residue carries out expanding treatment (condition setting are as follows: 120 DEG C of proparea, middle area 135 using twin-screw extruder
DEG C, 170 DEG C of back zone, revolving speed 90r/min), it is then dried to moisture content≤10%, as water insoluble dietary fiber, it is spare；
(9) water-soluble dietary fiber and water insoluble dietary fiber are uniformly mixed by 1:3,200 is crossed after pulverizing
Mesh obtains green alga ulva activation dietary fiber.
Embodiment three:
A kind of preparation method of the dietary fiber yoghourt containing green alga, includes the following steps:
(1) will 85 parts of raw milk of standardization, 5 parts of dietary fiber of the activation of green alga Enteromorpha made from embodiment one, 5 parts of granulated sugar,
4 parts of whey powder, 1 part of emulsion stabilizer be uniformly mixed, be warming up to 85 DEG C of sterilization 15min；
(2) emulsifying 2 times are cooled to 42 DEG C, and addition is stirred evenly for sugar；
(3) enter fermentor to be inoculated with, ferment 3-4 hours at 42 DEG C；
(4) when acidity is to 65T, terminates fermentation, be cooled to 15 DEG C；
(5) after edible essence stirring demulsification is added, sterile filling obtains the dietary fiber yoghourt of Enteromorpha containing green alga.
Example IV:
A kind of preparation method of the local flavor noodles of dietary fiber containing green alga, includes the following steps:
(1) and face: green alga Enteromorpha made from 65 parts of flour, embodiment one is activated into 5 parts of dietary fiber, 1 part of salt, xanthan
0.5 part of glue, 0.4 part of composite phosphate, 0.1 part of sodium carbonate.28 parts of drinking water are then slowly added into, side edged stirs, and stirs at 40 DEG C
Mix 20min；
(2) dough awake face: is issued into awake 30min at 20 DEG C；
(3) primary curing: dough, which is put into aging machine, cures 15min, 8 turns/min of speed of agitator；
(4) post cure: the compound roller sheet of dough to the face 5-6mm band is hanging to post cure machine, cures 20min；
(5) secondary roller sheet: by the face band of post cure through noodle rolling machine roller sheet to the face 0.5-1.0mm band；
(6) cut: face band handles to obtain strip shaped noodle through cutting machine；
(7) it dries: carrying out stage drying at 5-50 DEG C to get the local flavor noodles of dietary fiber containing green alga.
Embodiment five:
A kind of preparation method of the electuary of diet fiber fat reducing containing green alga, includes the following steps:
(1) raw material includes that 45 parts of wheat bran, 20 parts of PURE WHEY, the activation diet of green alga ulva made from embodiment two are fine
Tie up 10 parts, 2 parts of Lotus Leafextract, 2 parts of haw thorn extract, 1 part of nutrition fortifier, addition 10 parts of auxiliary material dextrin, 5 parts of xylitol,
5 parts of hydroxypropyl grade methylcellulose, is uniformly mixed spare；
(2) fluid bed granulator is added portionwise in the supplementary material mixed, using 30% ethanol water as adhesive, in temperature
Boiling granulating under the conditions of being 50 DEG C, 15 minutes dry at 75 DEG C, 10-50 mesh is analysed after cooling；
(3) add suitable sweetener and edible essence in particle, total mix 15min, wherein the sweetener be honey element,
One or more of Aspartame, neotame, Sucralose, steviol glycoside, Fructus Momordicae fructoside, acesulfame potassium；
(4) by uniformly mixed granule filling at pouch, 5g/ bags to get the electuary of diet fiber fat reducing containing green alga ulva.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (7)
1. a kind of preparation method of green alga activation dietary fiber, which comprises the steps of:
(1) green alga crushes, cleans, and removes impurity and frond salt surfactant；
(2) after extrusion dehydration, fixer fixation swelling treatment is selected；
(3) after green alga is rinsed, the Na of 0.5-1.5% is added2CO3, 40-50 DEG C of heat preservation digest 2-5 hours to thick；
(4) dilution is added water and stirred, is down to after being stored at room temperature overnight, filtering is separated by solid-liquid separation, and obtains clarified solution and filter residue respectively；
(5) after clarified solution concentration, alcoholic solution is added, until alcoholic strength is that 60-75% stands overnight alcohol precipitation after mixing evenly；
(6) alcohol hypostasis washs, and coarse powder is water-soluble dietary fiber after drying, spare；
(7) filter residue obtained by step (4) is added 0.2-0.8% liquor natrii hypochloritis, rinses after stirring bleaching to no chlorine flavor；
(8) after press dewatering, filter residue carries out expanding treatment, is then dried to moisture content≤10%, as water-insoluble diet
Fiber, it is spare；
(9) water-soluble dietary fiber and water insoluble dietary fiber are uniformly mixed by weight 1:3-1:5, after pulverizing
Sieving obtains green alga activation dietary fiber.
2. a kind of preparation method of green alga activation dietary fiber according to claim 1, which is characterized in that the green alga is
One or more of sea lettuce, Enteromorpha, reef film, caulerpa, Codiumfragile(sur.) Hariot., including dried product or fresh green alga.
3. a kind of preparation method of green alga activation dietary fiber according to claim 1, which is characterized in that the fixer
For mass concentration be 0.2-1% glutaraldehyde solution, 0.2-0.5% citric acid or 0.2-0.5% acetum it is therein
It is one or more.
4. a kind of preparation method of green alga activation dietary fiber according to claim 1, which is characterized in that the alcoholic solution
For methanol or ethanol solution.
5. a kind of preparation method of green alga activation dietary fiber according to claim 1, which is characterized in that at the extruding
Reason uses twin-screw extruder or three screw extrusion machines, and condition setting is 110-130 DEG C of proparea, middle area 120-150
DEG C, 150-180 DEG C of back zone, revolving speed 60-150r/min.
6. a kind of preparation method of green alga activation dietary fiber according to claim 1, which is characterized in that the Ultramicro-powder
It is broken to use air-stream type ultrafine pulverizer or vibration type ultramicro disintegrator.
7. a kind of application of green alga activation dietary fiber as described in claim 1 in processed food and functional food.
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