CN103892286B - A kind of apricot fruit fiber and preparation method thereof - Google Patents
A kind of apricot fruit fiber and preparation method thereof Download PDFInfo
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- CN103892286B CN103892286B CN201410133340.1A CN201410133340A CN103892286B CN 103892286 B CN103892286 B CN 103892286B CN 201410133340 A CN201410133340 A CN 201410133340A CN 103892286 B CN103892286 B CN 103892286B
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- 238000001291 vacuum drying Methods 0.000 claims abstract description 16
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- 239000000463 material Substances 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 6
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- 102000013142 Amylases Human genes 0.000 claims description 5
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- 244000144725 Amygdalus communis Species 0.000 description 4
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- HSINOMROUCMIEA-FGVHQWLLSA-N (2s,4r)-4-[(3r,5s,6r,7r,8s,9s,10s,13r,14s,17r)-6-ethyl-3,7-dihydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1h-cyclopenta[a]phenanthren-17-yl]-2-methylpentanoic acid Chemical compound C([C@@]12C)C[C@@H](O)C[C@H]1[C@@H](CC)[C@@H](O)[C@@H]1[C@@H]2CC[C@]2(C)[C@@H]([C@H](C)C[C@H](C)C(O)=O)CC[C@H]21 HSINOMROUCMIEA-FGVHQWLLSA-N 0.000 description 1
- 241000186000 Bifidobacterium Species 0.000 description 1
- 208000024172 Cardiovascular disease Diseases 0.000 description 1
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- 244000269722 Thea sinensis Species 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
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- 230000000291 postprandial effect Effects 0.000 description 1
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 1
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- 230000036186 satiety Effects 0.000 description 1
- 235000019627 satiety Nutrition 0.000 description 1
- 239000008279 sol Substances 0.000 description 1
- 239000004575 stone Substances 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
- A23L33/22—Comminuted fibrous parts of plants, e.g. bagasse or pulp
-
- 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
Abstract
The invention provides a kind of apricot fruit fiber and preparation method thereof, preparation method comprises: 1. first drying → 2. rinsing → 3. redrying → 4. pulverizing → 5. adding citric acid extraction with aqueous solution water-soluble dietary fiber → 6. filters → 7. filter residue get once → 8. filtration → 9. filter residue → a decolouring → b removal of impurities → c drying → d functional activation → e pulverizing → f water insoluble dietary fiber by water extraction again; G bis-filtrate merging → h are centrifugal → and i is concentrated → j clarification → k vacuum drying → l pulverizing activation → m water-soluble dietary fiber.The application of Armeniaca vulgaris fruit pomace of the present invention is actually agricultural byproducts comprehensive utilization, extends industrial chain, improves agricultural product added value, strengthen the flat resource utilization of apricot.
Description
Technical field
The present invention relates to the processing technique field of apricot fruit, particularly relate to a kind of apricot fruit fiber and preparation method thereof.
Background technology
Armeniaca vulgaris has very high economic worth, becomes one of the most general fruit tree of northern China, and in recent years along with people are to the understanding of Novel fruit-tree, Armeniaca vulgaris has become the valuable source of Fruit Trees Development.Armeniaca vulgaris is the important source material of food industry and medical industry, be also special taste eat fruit raw.General six kilograms of fresh material can make one kilogram of dried apricot, three kilograms of apricots can go out one kilogram of almond, almond deep processing is many, except stir-frying and eating, outside salt food, also can almond milk processed, almond tea, numerous food and the beverages such as almond milk powder, the lulu almond milk often drunk as us is exactly one of the most salable daily beverage of China, and Armeniaca vulgaris fruit pomace is as producing almond, the intermediate product of fruit juice, current processing mode is dropped as refuse, but, in Armeniaca vulgaris fruit pomace pomace, the content of total dietary fiber is about 80%, wherein water-soluble dietary fiber accounts for l5%, water insoluble dietary fiber accounts for 65%, this is concerning the integrated application of agricultural byproducts, sufficient not beyond doubt, cause the wasting of resources.
Summary of the invention
The object of the present invention is to provide a kind of apricot fruit fiber and preparation method thereof.
A kind of apricot fruit fiber, its raw material comprises Armeniaca vulgaris fruit pomace.
A preparation method for apricot fruit fiber, comprises the following steps:
(1), rinsing, it is in the water of 25-35 DEG C that the apricot fruit wet slag after squeezing the juice is immersed in temperature, adds the amylase that quality is apricot fruit wet slag 20% simultaneously, soaks and add 0.5-1 hour; Wherein, the addition of water is 10 times of apricot fruit wet slag quality;
(2), dry, pulverize, the apricot fruit wet slag after rinsing being completed carries out being dried to its moisture content at 8-10%, then dried apricot pomace is crushed to 100 order-80 orders;
(3), with the water of apricot pomace quality 6 times, with edible citric acid adjust pH to 2.0,95 DEG C are slowly heated to; be incubated 1 ~ 1.5 hour, filter and collect filtrate and filter residue respectively, wherein; water-soluble dietary fiber exists with filtrate, and water insoluble dietary fiber is present in filter residue;
(4), filter residue and drying, dry filter residue to its moisture content at 6-8%;
(5), water insoluble dietary fiber is produced in activation; dried filter residue is put into vacuum extruder; the condition of activation is: add moisture by 10% of pan feeding quality during pan feeding; control extrusion temperature at 140-155 DEG C; end extrusion temperature is at 125-140 DEG C, and extrusion chamber pressure is 0.5MPa ~ 1MPa, screw speed 100-120 rev/min;
(6), by the dietary fiber after activation through vacuum drying treatment, finally pulverize with pulverizer, cross 200 mesh sieves, obtain high activity apricot fruit dietary fiber.
The preparation method of described apricot fruit fiber, after step (3), further comprising the steps of:
A, by centrifugal for filtrate washing 3-5 time, concentrating clarifying removing excessive moisture, defecation vacuum drying under 60 DEG C of isoperibols will be remained, then carry out functional activation, finally obtain water-soluble dietary fiber; Wherein, the condition of activation is: dried defecation is inserted cutter, adds moisture during pan feeding by 10% of doses, under the environment of airtight vacuum, carry out 120 revs/min of shearings with cutter to material, shear temperature is: 150 DEG C, and shear pressure is: 0.5-1MPa;
B, by the water-soluble dietary fiber produced again through vacuum drying treatment, finally pulverize with pulverizer, cross 200 mesh sieves, obtain high activity apricot fruit dietary fiber.
The preparation method of described apricot fruit fiber, after described step (3), also comprise removal step, first in filter residue, adding its quality 7 ~ 8 times of pH value is the NaOH solution of 12.0, soaks 30 minutes, then drift is to neutral, with HCI, pH value is adjusted to 2.0 again, is heated to 60 DEG C and is incubated 1 hour to remove acid soluble impurities, collecting by filtration filter residue, rinsing is to neutral again, and gained filter residue is Purified Water insoluble diedairy fiber.
The preparation method of described apricot fruit fiber, before step (4) dry filter residue, also comprise filter residue decolorization process, its method is the anthocyanase prepared containing aspergillus niger adding filter residue quality 0.3% ~ 0.4%, and limit edged stirs, and adjusted to ph is 3.0 ~ 5.0, be heated to 55 DEG C ~ 6o DEG C, heat and decolour for 40 minutes, wherein, the enzyme activity of described anthocyanase is 40 units.
The preparation method of described apricot fruit fiber, after decolouring terminates, rinsed filter solution not containing the water insoluble dietary fiber of anthocyanase.
The preparation method of described apricot fruit fiber, in described step 3, the extraction of filtrate comprises secondary filter, its method be by once filter after residual residue add its quality 3-4 times water again, with edible citric acid adjust pH to 2.0, slowly be heated to 95 DEG C, be incubated 1 ~ 1.5 hour, then collecting by filtration filtrate and filter residue, twice filtrate merging is used for next step.
Dietary fiber is to the effect of human body:
1, promote intestines peristalsis, prevention of intestinal tract disease: dietary fiber absorbs and keeps moisture to form full-bodied colloidal sol or gel in enteron aisle, be easy to produce satiety, suppress food-intake, prevent heat from too much taking in, have good regulatory function to obesity; Can intestines peristalsis be stimulated simultaneously, shorten the time of swill by enteron aisle, reduce the generation of the diseases such as colonic diverticula, enteron aisle cancer and hemorrhoid.
2, reduce blood pressure: dietary fiber has combination and function of exchange to cation, plasma can be trembled with Ca2+, Zn2., Cu+2, Pb to exchange, alimentary canal pH value, osmotic pressure and oxidation-reduction potential are had an impact, formation-individual desirable buffer environment, reduce sodium potassium ratio in blood, thus reduce blood pressure.
3, reduce blood fat, prevent cardiovascular and cerebrovascular disease: dietary fiber can part blocks bile acid at intestinal absorption, increase the discharge rate of cholesterol, favourable reduction serum cholesterol liquid concentration, prevention hyperlipemia, thus the sick incidence of disease such as coronary heart disease and the cerebrovascular can be reduced.
4, reduce blood sugar, prevent diabetes: dietary fiber forms a kind of netted mucous membrane in the gastrointestinal tract, food fully can not be contacted with digestive juice, glucose absorption is slowed down, thus reduce level of postprandial blood sugar, improve glucose tolerance, play and prevent diabetes effect.
5, immune function of human body is strengthened: dietary fiber can not be decomposed absorption by human digestive enzymes, but be the significant energy source of beneficial bacteria, the propagation of the beneficial bacteriums such as Bifidobacterium can be promoted, suppress spoilage organisms growth, and the generation of antibody can be stimulated, thus strengthen immune function of human body.
Beneficial effect of the present invention:
The present invention be utilize Armeniaca vulgaris fruit remove 12.5% fruit stone, after 57.5% fruit juice, the application of 18% dietary fiber is produced with the pomace of residue 30%, the application of Armeniaca vulgaris fruit pomace of the present invention is actually and fully utilizes agricultural byproducts, extend industrial chain, improve agricultural product added value, strengthen the flat resource utilization method of apricot.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, be clearly and completely described the technical scheme in the present invention below in conjunction with embodiment, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
1, the apricot pomace after squeezing the juice is dried under 65 DEG C of conditions to moisture content and be down to less than 13% (wet slag is unfavorable for storing, and easily putrid and deteriorated under summer high temperature high humidity state);
2, rinsing, add warm water to dried apricot pomace, water rate control is at 10 times of apricot pomace quality, and add quality is the amylase that apricot pomace adds quality 20% simultaneously, makes the Starch Hydrolysis in apricot pomace be sugar, is convenient to rinsing removing; Wherein, soak water temperature and control at 25-35 DEG C, soak time 0.5 hour; Temperature and time should strictly control, and soak water temperature over-high, overlong time can increase the loss of Soluble Fiber, otherwise does not then have effect.Common, contained by apricot pomace after squeezing the juice: the compositions such as glucosides, starch, aromatic substance, pigment, acids and salt, therefore first apricot pomace must to carry out immersion rinsing with softening fibre and remove above-mentioned substance composition, simultaneously, also can tentatively wash away the soluble impurity remaining in apricot pomace surface, constantly stir during immersion.
3, dry, pulverizing: carry out drying after rinsing completes, make the moisture control of pomace 8%, subsequently apricot pomace after drying is crushed to 100 orders.
4, dietary fiber extracts, and first time extracts the 6 times of water adding dry fruit slag amount, with edible citric acid adjust pH to 2.0, is slowly heated to 95 DEG C, is incubated 1 hour; Water-soluble dietary fiber accelerates to dissolve in water under low ph value and high temperature, and filter subsequently, water-soluble dietary fiber is present in filtrate, filtrate is collected.Residual residue adds its quality 3 times of water again and extracts once under the same conditions again, and filter to obtain second time filtrate, merge twice gained filtrate and be water-soluble dietary fiber solution, water insoluble dietary fiber is present in filter residue, and water-soluble dietary fiber is present in filtrate.
A: the extraction of water-soluble dietary fiber:
1. by centrifugal for filtrate washing 5 times, concentrating clarifying removing excessive moisture, will remain defecation vacuum drying under 60 DEG C of isoperibols;
2. functional activation, adds moisture by 10% of doses, under the environment of airtight vacuum, carries out 120 revs/min of shearings, shear temperature: 150 DEG C, shear pressure: 0.5MPa with cutter to material;
3. the water insoluble dietary fiber after activation, again through vacuum drying treatment, is finally pulverized with high speed disintegrator, is crossed 200 mesh sieves, obtains high activity apricot fruit dietary fiber.Product color is pure white, and quality is fluffy, fine powder foam shape; Pack with inflated with nitrogen, can long term storage.
B: the extraction of water insoluble dietary fiber:
1. removal of impurities operating procedure is: first in filter residue, adding its quality 8 times of pH value is the NaOH solution of 12.0, soak 30 minutes, the stripping of alkali solubility impurity is removed, then drift is to neutral, with HCI, pH value is adjusted to 2.0 again, is heated to 60 DEG C and is incubated 1 hour to remove acid soluble impurities, collecting by filtration filter residue, rinsing is to neutral again, and gained filter residue is Purified Water insoluble diedairy fiber; Filter in rear gained filter residue, not only containing a large amount of dietary fibers, simultaneously also containing partial impurities, so filter residue must can obtain the higher water insoluble dietary fiber of purity again after removal of impurities owing to extracting water-soluble dietary fiber.
2. decolour, the anthocyanase (enzyme activity is 40 units) prepared containing aspergillus niger of Purified Water insoluble diedairy fiber quality 0.3% after adding removal of impurities, limit edged stirs, and adjusted to ph is 3.0, is heated to 55 DEG C ~ 6o DEG C, heats 40 minutes.Contain anthocyanidin in pomace due to water-insoluble apricot fruit dietary fiber place, the color and luster of dietary fiber is had a certain impact, therefore should remove.
3. after decolouring terminates, rinsed filter solution not containing the Water insoluble dietary fiber of anthocyanidin.
4. the apricot pomace after above-mentioned process can obtain light filter cake by centrifugal treating; be dried to after moisture accounts for 6% of gross mass and carry out functional activation process; activation condition is: dried filter residue is put into vacuum extruder; press pan feeding quality during pan feeding 10% adds moisture; control extrusion temperature at 150 DEG C; end extrusion temperature is at 135 DEG C, and extrusion chamber pressure is 0.5MPa, screw speed 100 revs/min;
5. the dietary fiber after activation, again through vacuum drying treatment, is finally pulverized with high speed disintegrator, is crossed 200 mesh sieves, obtains high activity apricot fruit dietary fiber, then inflated with nitrogen packaging, can long term storage.
Embodiment 2:
1, the apricot pomace after squeezing the juice is dried under 65 DEG C of conditions to moisture content and be down to less than 13%;
2, rinsing, adds warm water to dried apricot pomace, and water rate control, at 10 times of apricot pomace quality, adds the amylase that quality is apricot fruit wet slag quality 20% simultaneously, soaks water temperature and control at 25-35 DEG C, soak time 1 hour;
3, dry, pulverizing: carry out drying after rinsing completes, make the moisture control of pomace 10%, subsequently apricot pomace after drying is crushed to 80 orders.
4, dietary fiber extracts, and first time extracts the 6 times of water adding dry fruit slag amount, with edible citric acid adjust pH to 2.0, is slowly heated to 95 DEG C, is incubated 1.5 hours, collecting by filtration filtrate and filter residue; Filter residue is added again its quality 3 times of water to extract once under the same conditions, filter to obtain second time filtrate, merge twice gained filtrate and be water-soluble dietary fiber solution, water insoluble dietary fiber is present in filter residue, and water-soluble dietary fiber is present in filtrate again.
A: the extraction of water-soluble dietary fiber:
1. by centrifugal for filtrate washing 3 times, concentrating clarifying removing excessive moisture, will remain defecation vacuum drying under 60 DEG C of isoperibols;
2. functional activation, adds moisture by 10% of doses, under the environment of airtight vacuum, carries out 100 revs/min of shearings, shear temperature: 140 DEG C, shear pressure: 1MPa with cutter to material;
3. the water insoluble dietary fiber after activation, again through vacuum drying treatment, is finally pulverized with high speed disintegrator, is crossed 200 mesh sieves, obtains high activity apricot fruit dietary fiber.Product color is pure white, and quality is fluffy, fine powder foam shape; Pack with inflated with nitrogen, can long term storage.
B: the extraction of water insoluble dietary fiber:
1. removal of impurities, first in filter residue, adding its quality 7 times of pH value is the NaOH solution of 12.0, soak 30 minutes, then drift is to neutral, with HCI, pH value is adjusted to 2.0 again, is heated to 60 DEG C and is incubated 1 hour, collecting by filtration filter residue, again that filter residue rinsing is extremely neutral, gained filter residue is Purified Water insoluble diedairy fiber;
2. decolour, the anthocyanase (enzyme activity is 40 units) prepared containing aspergillus niger of Purified Water insoluble diedairy fiber quality 0.4% after adding removal of impurities, limit edged stirs, and adjusted to ph is 5.0, is heated to 55 DEG C ~ 6o DEG C, heats 40 minutes.
3. after decolouring terminates, rinsed filter solution not containing the Water insoluble dietary fiber of anthocyanidin.
4. the apricot pomace after above-mentioned process can obtain light filter cake by centrifugal treating; be dried to after moisture accounts for 8% of gross mass and carry out functional activation process; activation condition is: dried filter residue is put into vacuum extruder; press pan feeding quality during pan feeding 10% adds moisture; control extrusion temperature at 140 DEG C; end extrusion temperature is at 140 DEG C, and extrusion chamber pressure is 1MPa, screw speed 120 revs/min;
5. the dietary fiber after activation, again through vacuum drying treatment, is finally pulverized with high speed disintegrator, is crossed 200 mesh sieves, obtains high activity apricot fruit dietary fiber, then inflated with nitrogen packaging, can long term storage.
Embodiment 3:
1, the apricot pomace after squeezing the juice is dried under 65 DEG C of conditions to moisture content and be down to less than 13%;
2, rinsing, adds warm water to dried apricot pomace, and water rate control, at 10 times of apricot pomace quality, adds the amylase that quality is apricot fruit wet slag quality 20% simultaneously, soaks water temperature and control at 25-35 DEG C, soak time 1 hour;
3, dry, pulverizing: carry out drying after rinsing completes, make the moisture control of pomace 10%, subsequently apricot pomace after drying is crushed to 90 orders.
4, dietary fiber extracts, and first time extracts the 6 times of water adding dry fruit slag amount, with edible citric acid adjust pH to 2.0, is slowly heated to 95 DEG C, is incubated 1.5 hours, collecting by filtration filtrate and filter residue; Filter residue is added again its quality 3 times of water to extract once under the same conditions, filter to obtain second time filtrate, merge twice gained filtrate and be water-soluble dietary fiber solution, water insoluble dietary fiber is present in filter residue, and water-soluble dietary fiber is present in filtrate again.
A: the extraction of water-soluble dietary fiber:
1. by centrifugal for filtrate washing 4 times, concentrating clarifying removing excessive moisture, will remain defecation vacuum drying under 60 DEG C of isoperibols;
2. functional activation, adds moisture by 10% of doses, under the environment of airtight vacuum, carries out 110 revs/min of shearings, shear temperature: 155 DEG C, shear pressure: 0.8MPa with cutter to material;
3. the water insoluble dietary fiber after activation, again through vacuum drying treatment, is finally pulverized with high speed disintegrator, is crossed 200 mesh sieves, obtains high activity apricot fruit dietary fiber.Product color is pure white, and quality is fluffy, fine powder foam shape; Pack with inflated with nitrogen, can long term storage.
B: the extraction of water insoluble dietary fiber:
1. removal of impurities, first in filter residue, adding its quality 8 times of pH value is the NaOH solution of 12.0, soak 30 minutes, then drift is to neutral, with HCI, pH value is adjusted to 2.0 again, is heated to 60 DEG C and is incubated 1 hour, collecting by filtration filter residue, again that filter residue rinsing is extremely neutral, gained filter residue is Purified Water insoluble diedairy fiber;
2. decolour, the anthocyanase (enzyme activity is 40 units) prepared containing aspergillus niger of Purified Water insoluble diedairy fiber quality 0.3% after adding removal of impurities, limit edged stirs, and adjusted to ph is 5.0, is heated to 55 DEG C ~ 6o DEG C, heats 40 minutes.
3. after decolouring terminates, rinsed filter solution not containing the Water insoluble dietary fiber of anthocyanidin.
4. the apricot pomace after above-mentioned process can obtain light filter cake by centrifugal treating; be dried to after moisture accounts for 7% of gross mass and carry out functional activation process; activation condition is: dried filter residue is put into vacuum extruder; press pan feeding quality during pan feeding 10% adds moisture; control extrusion temperature at 155 DEG C; end extrusion temperature is at 125 DEG C, and extrusion chamber pressure is 0.8MPa, screw speed 110 revs/min;
5. the dietary fiber after activation, again through vacuum drying treatment, is finally pulverized with high speed disintegrator, is crossed 200 mesh sieves, obtains high activity apricot fruit dietary fiber, then inflated with nitrogen packaging, can long term storage.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a preparation method for apricot fruit fiber, is characterized in that, comprises the following steps:
(1), rinsing, it is in the water of 25-35 DEG C that the apricot fruit wet slag after squeezing the juice is immersed in temperature, adds the amylase that quality is apricot fruit wet slag 20% simultaneously, soaks 0.5-1 hour; Wherein, the addition of water is 10 times of apricot fruit wet slag quality;
(2), dry, pulverize, the apricot fruit wet slag after rinsing being completed carries out being dried to its moisture content at 8-10%, then dried apricot pomace is crushed to 100 order-80 orders;
(3), with the water of apricot pomace quality 6 times, with edible citric acid adjust pH to 2.0,95 DEG C are slowly heated to, be incubated 1 ~ 1.5 hour, filter and collect filtrate and filter residue respectively, wherein, water-soluble dietary fiber is present in filtrate, and water insoluble dietary fiber is present in filter residue;
(4), filter residue and drying, dry filter residue to its moisture content at 6-8%;
(5), water insoluble dietary fiber is produced in activation, dried filter residue is put into vacuum extruder, the condition of activation is: add moisture by 10% of pan feeding quality during pan feeding, control extrusion temperature at 140-155 DEG C, end extrusion temperature is at 125-140 DEG C, and extrusion chamber pressure is 0.5Mpa ~ 1Mpa, screw speed 100-120 rev/min;
(6), by the dietary fiber after activation through vacuum drying treatment, finally pulverize with pulverizer, cross 200 mesh sieves, obtain high activity apricot fruit dietary fiber;
After step (3), further comprising the steps of:
A, by centrifugal for filtrate washing 3-5 time, concentrating clarifying removing excessive moisture, defecation vacuum drying under 60 DEG C of isoperibols will be remained, then carry out functional activation, finally obtain water-soluble dietary fiber; Wherein, the condition of activation is: dried defecation is inserted cutter, adds moisture during pan feeding by 10% of doses, under the environment of airtight vacuum, carry out 120 revs/min of shearings with cutter to material, shear temperature is: 150 DEG C, and shear pressure is: 0.5-1Mpa;
B, by the water-soluble dietary fiber produced again through vacuum drying treatment, finally pulverize with pulverizer, cross 200 mesh sieves, obtain high activity apricot fruit dietary fiber.
2. the preparation method of apricot fruit fiber according to claim 1, it is characterized in that, described step (3) also comprises removal step, and first in filter residue, adding its quality 7 ~ 8 times of pH value is the NaOH solution of 12.0, soaks 30 minutes, then drift is to neutral, with HCl, pH value is adjusted to 2.0 again, is heated to 60 DEG C and is incubated 1 hour to remove acid soluble impurities, collecting by filtration filter residue, rinsing is to neutral again, and gained filter residue is Purified Water insoluble diedairy fiber.
3. the preparation method of apricot fruit fiber according to claim 1, it is characterized in that, before step (4) dry filter residue, also comprise filter residue decolorization process, its method is the anthocyanase prepared by aspergillus niger adding filter residue quality 0.3% ~ 0.4%, limit edged stirs, adjusted to ph is 3.0 ~ 5.0, is heated to 55 DEG C ~ 60 DEG C, heats and decolours for 40 minutes, wherein, the enzyme activity of described anthocyanase is 40 units.
4. the preparation method of apricot fruit fiber according to claim 3, is characterized in that, after decolouring terminates, rinsed filter solution not containing the water insoluble dietary fiber of anthocyanase.
5. the preparation method of apricot fruit fiber according to claim 1, it is characterized in that, in described step (3), the extraction of filtrate comprises secondary filter, its method be by once filter after residual residue add its quality 3-4 times water again, with edible citric acid adjust pH to 2.0, be slowly heated to 95 DEG C, be incubated 1 ~ 1.5 hour, then collecting by filtration filtrate and filter residue, is used for next step by twice filtrate merging.
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| CN109329953A (en) * | 2018-09-14 | 2019-02-15 | 新疆农业大学 | A kind of open country apricot pulp dietary fiber chewable tablets and preparation method thereof |
| CN113749252B (en) * | 2021-08-25 | 2023-06-30 | 湖北土老憨生态农业科技股份有限公司 | Processing method for improving quality of dried orange peel (orange peel) powder |
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