CN108835466A - A kind of production method that jujube juice is concentrated - Google Patents
A kind of production method that jujube juice is concentrated Download PDFInfo
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- CN108835466A CN108835466A CN201810617297.4A CN201810617297A CN108835466A CN 108835466 A CN108835466 A CN 108835466A CN 201810617297 A CN201810617297 A CN 201810617297A CN 108835466 A CN108835466 A CN 108835466A
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- jujube juice
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- 235000020418 red date juice Nutrition 0.000 title claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 230000001954 sterilising effect Effects 0.000 claims abstract description 35
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 35
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 32
- 238000002386 leaching Methods 0.000 claims abstract description 22
- 241001247821 Ziziphus Species 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000008569 process Effects 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 15
- 238000000909 electrodialysis Methods 0.000 claims abstract description 12
- 238000011049 filling Methods 0.000 claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 9
- 238000000605 extraction Methods 0.000 claims abstract description 7
- 238000009928 pasteurization Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 28
- 238000007599 discharging Methods 0.000 claims description 12
- 235000013399 edible fruits Nutrition 0.000 claims description 10
- 102000004190 Enzymes Human genes 0.000 claims description 9
- 108090000790 Enzymes Proteins 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 239000000284 extract Substances 0.000 claims description 7
- 239000012535 impurity Substances 0.000 claims description 5
- 239000011265 semifinished product Substances 0.000 claims description 5
- 241000196324 Embryophyta Species 0.000 claims description 4
- 241000607479 Yersinia pestis Species 0.000 claims description 4
- 230000009849 deactivation Effects 0.000 claims description 4
- 201000010099 disease Diseases 0.000 claims description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 230000002255 enzymatic effect Effects 0.000 claims description 4
- 239000011552 falling film Substances 0.000 claims description 4
- 239000000945 filler Substances 0.000 claims description 4
- 238000005188 flotation Methods 0.000 claims description 4
- 230000007062 hydrolysis Effects 0.000 claims description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 4
- 230000008719 thickening Effects 0.000 claims description 4
- 238000002137 ultrasound extraction Methods 0.000 claims description 4
- 239000004382 Amylase Substances 0.000 claims description 3
- 102000013142 Amylases Human genes 0.000 claims description 3
- 108010065511 Amylases Proteins 0.000 claims description 3
- 235000019418 amylase Nutrition 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 5
- 235000019658 bitter taste Nutrition 0.000 abstract description 4
- 239000000796 flavoring agent Substances 0.000 abstract description 4
- 235000019634 flavors Nutrition 0.000 abstract description 4
- 230000007071 enzymatic hydrolysis Effects 0.000 abstract description 3
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 9
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009455 aseptic packaging Methods 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000447 pesticide residue Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 244000144730 Amygdalus persica Species 0.000 description 1
- 244000018633 Prunus armeniaca Species 0.000 description 1
- 235000009827 Prunus armeniaca Nutrition 0.000 description 1
- 235000006040 Prunus persica var persica Nutrition 0.000 description 1
- 241000219100 Rhamnaceae Species 0.000 description 1
- 241000238370 Sepia Species 0.000 description 1
- GAMYVSCDDLXAQW-AOIWZFSPSA-N Thermopsosid Natural products O(C)c1c(O)ccc(C=2Oc3c(c(O)cc(O[C@H]4[C@H](O)[C@@H](O)[C@H](O)[C@H](CO)O4)c3)C(=O)C=2)c1 GAMYVSCDDLXAQW-AOIWZFSPSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229930003944 flavone Natural products 0.000 description 1
- -1 flavone compound Chemical class 0.000 description 1
- 235000011949 flavones Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000019629 palatability Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000001397 quillaja saponaria molina bark Substances 0.000 description 1
- 229930182490 saponin Natural products 0.000 description 1
- 150000007949 saponins Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 150000003722 vitamin derivatives Chemical class 0.000 description 1
- VHBFFQKBGNRLFZ-UHFFFAOYSA-N vitamin p Natural products O1C2=CC=CC=C2C(=O)C=C1C1=CC=CC=C1 VHBFFQKBGNRLFZ-UHFFFAOYSA-N 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
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/02—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation containing fruit or vegetable juices
-
- 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
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/02—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation containing fruit or vegetable juices
- A23L2/04—Extraction of juices
-
- 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
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
- A23L2/70—Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
-
- 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
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Non-Alcoholic Beverages (AREA)
Abstract
A kind of production method that jujube juice is concentrated disclosed by the invention, including sorting, cleaning, extraction, enzymatic hydrolysis, decoloration, diatomite filtering, centrifugal filtration, primary sterilization, a ultrafiltration, electrodialysis process, re-pasteurization, second ultrafiltration, vacuum concentration, sterilize three times, filling and package.The present invention uses ultrasonic-leaching, substantially reduces the process time of conventional water leaching and reduces Extracting temperature, the loss of the caramelization and thermal energy of product in process can be greatly reduced；The bitter taste of conventional water leaching is removed and removed simultaneously to the heavy metal substance in jujube present invention uses electrodialysis process, while meeting the improved demand for producing energy-efficient demand instantly and jujube juice product special flavour being concentrated.
Description
Technical field
The present invention relates to the production method of red date concentrated juice more particularly to a kind of meet production energy-saving demand, can improve
The production method that the concentration jujube juice of jujube juice product special flavour is concentrated.
Background technique
Jujube also known as jujube are just listed in one of " five fruits " (peach, Lee, plum, apricot, jujube) since ancient times, with a long history.It is red
Jujube originates in China, belongs to the fruit of Rhamnaceae plant, has more than 3,000 years cultivation histories in China.Jujube is rich in
Nutritional ingredient, in addition to containing sugar, protein, organic acid, vitamin, microelement, also containing flavone compound and saponin(e etc.
Medicinal ingredient, thus there is good healthy nutritive value and medical value.
Jujube deep processing at present is mainly to produce based on clarifying jujube juice and red date concentrated juice, in the processing of red date concentrated juice
In the process, water leaching can be used, in conventional water leaching, process time is longer, and Extracting temperature is high, such as
Publication No. " CN102907736A " discloses in the patent of invention specification of entitled " a kind of processing method of red date concentrated juice "
" extraction：Smashed jujube is poured into closed jacketed pan, the softened water boiling of heat, extraction is added, coarse filtration obtains
Leaching liquor " can aggravate caramelization and improve the loss of thermal energy, lead to jujube in such high temperature water leaching
The natural scents of itself cannot save substantially, seriously affect product quality, and after by water leaching, jujube
Often there is bitter taste in juice, this has resulted in certain mass defect.
Summary of the invention
In place of avoiding the deficiencies in the prior art, a kind of production method that jujube juice is concentrated is provided,
To effectively solve the shortcomings of the prior art.
To achieve the above object, the technical scheme adopted by the invention is as follows：A kind of production method that jujube juice is concentrated, including
Following steps：
(1) sorting：Jujube is chosen, pest and disease damage fruit is removed, go mouldy fruit；
(2) it cleans：Through being bubbled the soil and partial impurities on flotation washer removal raw material surface, then by spray and two
Cleaning machine is thoroughly cleaned；
(3) it extracts：After cleaning up red dates, weighed addition temperature control ultrasonic extraction tank, addition is had warmed up to 70-
80 DEG C of water obtains leaching liquor after extraction；
(4) it digests：The leaching liquor that step (3) processing obtains squeeze into enzymatic vessel after cooling to 48-55 DEG C, enzyme
Enzymolysis liquid is obtained after solution；
(5) it decolourizes：Active carbon powder is added into enzymolysis liquid obtained in step (4), is stood after mixing evenly；
Wherein, the mass ratio of active carbon powder and enzymolysis liquid is 1: 1000-5: 1000；
(6) diatomite filters：Step (5) treated feed liquid is subjected to diatomite filtering；
(7) centrifugal filtration：Step (6) treated feed liquid is subjected to centrifugal filtration by disk plate centrifuge；
(8) primary sterilization：Enzyme deactivation sterilization is carried out to step (7) treated feed liquid using tubulation sterilization machine；
(9) ultrafiltration：Step (8) treated jujube juice is subjected to ultra-filtration filters by ultrafiltration system；
(10) electrodialysis process：By step (9), treated that jujube juice is pumped into electrodialysis plant carries out de- suffering reason；
(11) re-pasteurization：Using tubulation sterilization machine, to step (10), treated, and feed liquid is sterilized；
(12) second ultrafiltration：Step (11) treated jujube juice is subjected to ultra-filtration filters by ultrafiltration system；
(13) it is concentrated in vacuo：By step (12), treated that jujube juice is pumped into triple effect falling film evaporator is concentrated, and obtains half
Finished product jujube juice；
(14) it sterilizes three times：Semi-finished product jujube juice after concentration in step (13) is sterilized through casing sterilization machine；
(15) filling and package：Concentration jujube juice after sterilization in step (14) is carried out using aseptic filler filling.
Further, in step (3), ultrasonic power is set as 180-250W, setpoint frequency 35-45kHz is extracted
30-60min。
Further, in step (4), hydrolysis temperature is set as 48-55 DEG C, pectase additive amount is 80-150ppm, is formed sediment
Powder enzyme additive amount is 20-40ppm, enzymolysis time 60-120min.
Further, in step (5), time of repose 10-20min.
Further, in step (8) and (11), control sterilization temperature is 90-92 DEG C, and outlet temperature is less than 35 DEG C.
Further, in step (9) and step (12), ultrafiltration membrane aperture is 0.45 μm.
Further, in step (10), control voltage is 180V, electric current 20mA, and discharging conductance is 1100 μ s/cm.
Further, in step (13), control thickening temperature is 70-80 DEG C, and control discharging soluble solid is 69-
71%.
Further, in step (14), control sterilization temperature is 100-105 DEG C, and time 80-100s, drop temperature is less than
60℃。
Above-mentioned technical proposal of the invention has the advantages that：
(1) present invention uses ultrasonic-leaching, substantially reduces the process time of conventional water leaching and reduces and mentions
Temperature is taken, the loss of the caramelization and thermal energy of product in process can be greatly reduced；
(2) heavy metal substance in jujube is removed present invention uses electrodialysis process and removes routine simultaneously
The bitter taste of water leaching, while meeting the improved need for producing energy-efficient demand instantly and jujube juice product special flavour being concentrated
It asks.
Specific embodiment
Embodiments of the present invention are described in further detail below with reference to embodiment.Following embodiment is for illustrating
The present invention, but cannot be used to limit the scope of the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be with
It is mechanical connection, is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For ability
For the those of ordinary skill in domain, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment 1：
1, a kind of production method that jujube juice is concentrated, includes the following steps：
(1) sorting：Jujube is chosen, pest and disease damage fruit is removed, go mouldy fruit, uses high-quality golden jujube, it is desirable that meet GB/T
5835 regulation, pesticide residue and heavy metal index correspond with the regulation of GB 2763 and GB 2762；
(2) it cleans：Through being bubbled the soil and partial impurities on flotation washer removal raw material surface, then by spray and two
Cleaning machine is thoroughly cleaned；
(3) it extracts：After cleaning up red dates, weighed addition temperature control ultrasonic extraction tank, addition is had warmed up to 70 DEG C
Water, set ultrasonic power as 180W, setpoint frequency 35kHz extracts 30min, leaching liquor is obtained after extraction, wherein
The quality of the water of addition is 3 times of jujube quality；
(4) it digests：It is squeezed into enzymatic vessel after the leaching liquor that step (3) processing obtains is cooled down, sets hydrolysis temperature
It is 48 DEG C, pectase additive amount is 100ppm, and amylase additive amount is 20ppm, enzymolysis time 60min, obtains enzyme after enzymatic hydrolysis
Solve liquid；
(5) it decolourizes：Active carbon powder is added into enzymolysis liquid obtained in step (4), is stood after mixing evenly
10min, wherein the mass ratio of active carbon powder and enzymolysis liquid is 5: 1000；
(6) diatomite filters：Step (5) treated feed liquid is subjected to diatomite filtering；
(7) centrifugal filtration：Step (6) treated feed liquid is subjected to centrifugal filtration by disk plate centrifuge；
(8) primary sterilization：Enzyme deactivation sterilization, control sterilization are carried out to step (7) treated feed liquid using tubulation sterilization machine
Temperature is 90 DEG C, otherwise outlet temperature needs to cool down to discharging through plate heat exchanger less than 35 DEG C；
(9) ultrafiltration：Step (8) treated jujube juice is subjected to ultra-filtration filters, ultrafiltration membrane aperture by ultrafiltration system
It is 0.45 μm.
(10) electrodialysis process：By step (9), treated that jujube juice is pumped into electrodialysis plant carries out de- suffering reason, control
Voltage processed is 180V, electric current 20mA, and discharging conductance is 1100 μ s/cm.
(11) re-pasteurization：Using tubulation sterilization machine, to step (10), treated, and feed liquid is sterilized, control sterilization temperature
Degree is 90 DEG C, otherwise outlet temperature needs to cool down to discharging through plate heat exchanger less than 35 DEG C；
(12) second ultrafiltration：Step (11) treated jujube juice is subjected to ultra-filtration filters, ultrafiltration fenestra by ultrafiltration system
Diameter is 0.45 μm；
(13) it is concentrated in vacuo：By step (12), treated that jujube juice is pumped into triple effect falling film evaporator is concentrated, and obtains half
Finished product jujube juice, in step (13), control thickening temperature is 70 DEG C, and control discharging soluble solid accounting is 69-71%；
(14) it sterilizes three times：Semi-finished product jujube juice after concentration in step (13) is sterilized through casing sterilization machine, is controlled
Sterilization temperature is 100 DEG C, and time 80s, drop temperature is less than 60 DEG C.
(15) filling and package：Concentration jujube juice after sterilization in step (14) is carried out using aseptic filler it is filling, it is filling
Into aseptic packaging complex pocket, outer packing uses carton or opening steel drum, and storage temperature is refrigerated less than 10 DEG C, cannot be freezed.
In the present embodiment, which clarifies bright, fragrant and sweet strong, sour and sweet palatability in brown color to sepia,
Without the visible exogenous impurity of twenty-twenty vision.
Using ultrasonic-leaching, substantially reduces the process time of conventional water leaching and reduce Extracting temperature, energy
The loss of the caramelization and thermal energy of product in process is greatly reduced；In addition used electrodialysis process to jujube
In heavy metal substance removed and remove the bitter taste of conventional water leaching simultaneously, i.e., the technique simultaneously meet instantly
It produces energy-efficient demand and the improved demand of jujube juice product special flavour is concentrated.
Embodiment 2：
1, a kind of production method that jujube juice is concentrated, includes the following steps：
(1) sorting：Jujube is chosen, pest and disease damage fruit is removed, go mouldy fruit, uses high-quality golden jujube, it is desirable that meet GB/T
5835 regulation, pesticide residue and heavy metal index correspond with the regulation of GB 2763 and GB 2762；
(2) it cleans：Through being bubbled the soil and partial impurities on flotation washer removal raw material surface, then by spray and two
Cleaning machine is thoroughly cleaned；
(3) it extracts：After cleaning up red dates, weighed addition temperature control ultrasonic extraction tank, addition is had warmed up to 75 DEG C
Water, set ultrasonic power as 200W, setpoint frequency 40kHz extracts 40min, leaching liquor is obtained after extraction, wherein
The quality of the water of addition is 4 times of jujube quality；
(4) it digests：It is squeezed into enzymatic vessel after the leaching liquor that step (3) processing obtains is cooled down, sets hydrolysis temperature
It is 52 DEG C, pectase additive amount is 120ppm, and amylase additive amount is 35ppm, enzymolysis time 80min, obtains enzyme after enzymatic hydrolysis
Solve liquid；
(5) it decolourizes：Active carbon powder is added into enzymolysis liquid obtained in step (4), is stood after mixing evenly
15min, wherein the mass ratio of active carbon powder and enzymolysis liquid is 3: 1000；
(6) diatomite filters：Step (5) treated feed liquid is subjected to diatomite filtering；
(7) centrifugal filtration：Step (6) treated feed liquid is subjected to centrifugal filtration by disk plate centrifuge；
(8) primary sterilization：Enzyme deactivation sterilization, control sterilization are carried out to step (7) treated feed liquid using tubulation sterilization machine
Temperature is 92 DEG C, otherwise outlet temperature needs to cool down to discharging through plate heat exchanger less than 35 DEG C；
(9) ultrafiltration：Step (8) treated jujube juice is subjected to ultra-filtration filters, ultrafiltration membrane aperture by ultrafiltration system
It is 0.45 μm.
(10) electrodialysis process：By step (9), treated that jujube juice is pumped into electrodialysis plant carries out de- suffering reason, control
Voltage processed is 180V, electric current 20mA, and discharging conductance is 1100 μ s/cm.
(11) re-pasteurization：Using tubulation sterilization machine, to step (10), treated, and feed liquid is sterilized, control sterilization temperature
Degree is 92 DEG C, otherwise outlet temperature needs to cool down to discharging through plate heat exchanger less than 35 DEG C；
(12) second ultrafiltration：Step (11) treated jujube juice is subjected to ultra-filtration filters, ultrafiltration fenestra by ultrafiltration system
Diameter is 0.45 μm；
(13) it is concentrated in vacuo：By step (12), treated that jujube juice is pumped into triple effect falling film evaporator is concentrated, and obtains half
Finished product jujube juice, in step (13), control thickening temperature is 80 DEG C, and control discharging soluble solid accounting is 69-71%；
(14) it sterilizes three times：Semi-finished product jujube juice after concentration in step (13) is sterilized through casing sterilization machine, is controlled
Sterilization temperature is 105 DEG C, and time 100s, drop temperature is less than 60 DEG C.
(15) filling and package：Concentration jujube juice after sterilization in step (14) is carried out using aseptic filler it is filling, it is filling
Into aseptic packaging complex pocket, outer packing uses carton or opening steel drum, and storage temperature is refrigerated less than 10 DEG C, cannot be freezed.
The embodiment of the present invention is given for the purpose of illustration and description, and is not that exhaustively or incite somebody to action this
Invention is limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.
Selection and description embodiment are and to make the ordinary skill of this field to more preferably illustrate the principle of the present invention and practical application
Personnel it will be appreciated that the present invention to designing various embodiments suitable for specific applications with various modifications.
Claims (9)
1. a kind of production method that jujube juice is concentrated, which is characterized in that include the following steps：
(1) sorting：Jujube is chosen, pest and disease damage fruit is removed, go mouldy fruit；
(2) it cleans：Through being bubbled the soil and partial impurities on flotation washer removal raw material surface, then by spray and two cleaning machines
Thoroughly cleaned；
(3) it extracts：After cleaning up red dates, weighed addition temperature control ultrasonic extraction tank, addition is had warmed up to 70-80 DEG C
Water obtains leaching liquor after extraction；
(4) it digests：The leaching liquor that step (3) processing obtains is cooled down, is squeezed into enzymatic vessel after cooling to 48-55 DEG C, enzyme
Enzymolysis liquid is obtained after solution；
(5) it decolourizes：Active carbon powder is added into enzymolysis liquid obtained in step (4), is stood after mixing evenly；
Wherein, the mass ratio of active carbon powder and enzymolysis liquid is 1: 1000-5: 1000；
(6) diatomite filters：Step (5) treated feed liquid is subjected to diatomite filtering；
(7) centrifugal filtration：Step (6) treated feed liquid is subjected to centrifugal filtration by disk plate centrifuge；
(8) primary sterilization：Enzyme deactivation sterilization is carried out to step (7) treated feed liquid using tubulation sterilization machine；
(9) ultrafiltration：Step (8) treated jujube juice is subjected to ultra-filtration filters by ultrafiltration system；
(10) electrodialysis process：By step (9), treated that jujube juice is pumped into electrodialysis plant carries out de- suffering reason；
(11) re-pasteurization：Using tubulation sterilization machine, to step (10), treated, and feed liquid is sterilized；
(12) second ultrafiltration：Step (11) treated jujube juice is subjected to ultra-filtration filters by ultrafiltration system；
(13) it is concentrated in vacuo：By step (12), treated that jujube juice is pumped into triple effect falling film evaporator is concentrated, and obtains semi-finished product
Jujube juice；
(14) it sterilizes three times：Semi-finished product jujube juice after concentration in step (13) is sterilized through casing sterilization machine；
(15) filling and package：Concentration jujube juice after sterilization in step (14) is carried out using aseptic filler filling.
2. a kind of production method that jujube juice is concentrated according to claim 1, which is characterized in that in step (3), setting
Ultrasonic power is 180-250W, setpoint frequency 35-45kHz, extracts 30-60min.
3. a kind of production method that jujube juice is concentrated according to claim 1, which is characterized in that in step (4), setting
Hydrolysis temperature is 48-55 DEG C, and pectase additive amount is 80-150ppm, and amylase additive amount is 20-40ppm, and enzymolysis time is
60-120min。
4. a kind of production method that jujube juice is concentrated according to claim 1, which is characterized in that in step (5), stand
Time is 10-20min.
5. a kind of production method that jujube juice is concentrated according to claim 1, which is characterized in that in step (8) and (11)
In, control sterilization temperature is 90-92 DEG C, and outlet temperature is less than 35 DEG C.
6. a kind of production method that jujube juice is concentrated according to claim 1, which is characterized in that in step (9) and step
(12) in, ultrafiltration membrane aperture is 0.45 μm.
7. a kind of production method that jujube juice is concentrated according to claim 1, which is characterized in that in step (10), control
Voltage processed is 180V, electric current 20mA, and discharging conductance is 1100 μ s/cm.
8. a kind of production method that jujube juice is concentrated according to claim 1, which is characterized in that in step (13), control
Thickening temperature processed is 70-80 DEG C, and control discharging soluble solid is 69-71%.
9. a kind of production method that jujube juice is concentrated according to claim 1, which is characterized in that in step (14), control
Sterilization temperature processed is 100-105 DEG C, and time 80-100s, drop temperature is less than 60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810617297.4A CN108835466A (en) | 2018-06-15 | 2018-06-15 | A kind of production method that jujube juice is concentrated |
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| CN111938047A (en) * | 2020-09-03 | 2020-11-17 | 河北沛然世纪生物食品有限公司 | Preparation method of concentrated black date clear juice |
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