CN108669505A - wine jujube and processing method - Google Patents

wine jujube and processing method Download PDF

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Publication number
CN108669505A
CN108669505A CN201810492545.7A CN201810492545A CN108669505A CN 108669505 A CN108669505 A CN 108669505A CN 201810492545 A CN201810492545 A CN 201810492545A CN 108669505 A CN108669505 A CN 108669505A
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China
Prior art keywords
jujube
solution
wine
microcapsules
dry
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Chinese (zh)
Inventor
李喜宏
杨莉杰
杨维巧
张宇峥
朱刚
张苹苹
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Zhong Xi (tianjin) Jujube Industry Technical Engineering Center
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Zhong Xi (tianjin) Jujube Industry Technical Engineering Center
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Priority to CN201810492545.7A priority Critical patent/CN108669505A/en
Publication of CN108669505A publication Critical patent/CN108669505A/en
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L19/00Products from fruits or vegetables; Preparation or treatment thereof
    • A23L19/20Products from fruits or vegetables; Preparation or treatment thereof by pickling, e.g. sauerkraut or pickles
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/03Organic compounds
    • A23L29/045Organic compounds containing nitrogen as heteroatom
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/065Microorganisms
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/16Inorganic salts, minerals or trace elements
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Nutrition Science (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Microbiology (AREA)
  • Inorganic Chemistry (AREA)
  • Mycology (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

The present invention relates to a kind of processing method of wine jujube, step includes raw material selection, chooses free from insect pests, not damaged, fissureless dry jujube as raw material;Dry jujube sterilization;Dry jujube rinses wine;Alcoholic fermentation;Enter altar;Prepare composite micro-capsule;It smears, packaging, sterilization acquisition wine jujube.The present invention prepares the double cross-linked hydrogels of metallic element, will be puffing after crosslinking protein be dipped into metal nutritional ingredient liquid, the soybean protein after puffing has the specific surface area of bigger, can the more metal ions of load, realize the efficient supplement of metal ion.

Description

Wine jujube and processing method
Technical field
The invention belongs to jujube deep process technology field, especially a kind of wine jujube and processing method.
Background technology
The main problem of existing wine jujube is as follows:With the progress of fermentation, alcohol content gradually rises, and saccharomycete, which enters, to decline It dies the phase, fermentation process is suppressed.Finished product jujube is fragrant, aroma is not strong.
By retrieval, finds and the relevant patent document of the application, specific disclosure are as follows:
With application number 201510177435.8《A kind of farmers' steeps in wine the method for jujube》Jujube is not poured into dipping in wine by difference It once pulls out and is placed in altar, the wine jujube and processing method carry out alcohol hair to do red date as raw materials using the saccharomycete of commercialization Ferment avoids the pollution of miscellaneous bacteria in fermentation process.With application number 201711078903.1《A kind of preparation method of liquor-saturated dates》No Together, unused white wine seals dipping 20 days, every 5 days of period stirred once, and the wine jujube and processing method utilize yeast slow-release microcapsule As strain replenishers, fermentation process does not have to stir repeatedly, avoids saccharomycete vigor in fermentation process from declining, no viable bacteria is available Disadvantage.
Technical solution disclosed in above patent document differs greatly with this examination, does not influence novelty and the creation of the application Property.
Invention content
The purpose that the present invention carries provides that a kind of jujube taste is strong, full of nutrition, mouthfeel in place of overcome the deficiencies in the prior art Good wine jujube and processing method.
The present invention realizes that the technical solution of purpose is as follows:
A kind of processing method of wine jujube, technique are as follows
(1) raw material selects
Free from insect pests, not damaged, fissureless dry jujube are chosen as raw material;
(2) dry jujube sterilization
(3) dry jujube rinses wine
It after cleaning, drains, jujube is done the wash in 60 ° of white wine;
(4) yeast slow-release microcapsule is prepared, and using chitosan/sodium alginate as wall material, saccharomycete is core material.
(5) alcoholic fermentation
Inoculation 5-10% yeast, 5-10% yeast slow-release microcapsules in the feed, carry out alcoholic fermentation, control the primary fermentation phase 26-28 DEG C, 10h;30-34 DEG C of lord ferment period, 12h;It ferments afterwards 30-32 DEG C of phase, 40h;
(6) altar is entered
Jujube is packed into the osculum jar with plastic mattress, the sealing of altar water seal method completely cuts off air, goes out altar after 10-15d;
(7) composite micro-capsule is prepared
I) nutrient microcapsules
By soybean protein:Starch=1:In 1 dissolving water, 7.5U/g soybean protein isolate enzymes, 80 DEG C of stirring 10- are added 10-15% starch soybean protein mixed gel obtained, the final concentration of 5-10wt% of soybean protein after 20min;By mixed gel It is sent into Bulking tank, in 0.1-0.5MPa, 70-90 DEG C, low temperature expanding 3-5min;
Valve pressure release is opened, particle is taken out, is crushed, the inside for forming 0.5-1mm is full of the swelling granular in hole.By 2-3 Part calcium gluconate, 1-2 parts of zinc gluconates, 0.1-0.5 parts of k-selenocarrageenans are placed in 50-100 parts of water, are made compound molten Liquid;Swelling granular is immersed in above-mentioned solution, 10-20min is impregnated, takes out drying;Metal nutrient is loaded to puffing In particle surface and the reticular structure of inside;
Secondary roller coating:Particle after drying is immersed in 10% soy protein gel, 3-5min is stirred, it is dry, it is formed The irregular enwrapped granules of 80-100um, obtain nutrient microcapsules;
Ii) prepared by the pressure-sensitive microcapsules of flavored type
Using gelatin 1% and 1.5% compound of pectin as wall material, NaHCO3, Red jujube flavor, ethyl alcohol be core material, 0.5% olive Olive oil is emulsifier;Spherical particles are made by this capsule is spray-dried;
Nutrient microcapsules in composite micro-capsule:The pressure-sensitive microcapsules mass ratio of flavored type is according to 1:1-5;
(8) smear, pack, sterilization
At composite micro-capsule even application jujube fold, with polypropylene film nitrogen-filled packaging.
Moreover, (4) to prepare the step of yeast slow-release microcapsule as follows for the step:
By the barms after activation, access YPD 37 DEG C of aerobic cultures of culture medium, will culture gained in stationary phase After saccharomycete is centrifuged, supernatant is abandoned, thalline is collected, is washed with 0.9g/100m L sterile salines, centrifuged again, Supernatant is abandoned, bacterium mud is collected;
Obtained bacterium mud will be collected to be added in sodium alginate soln, be uniformly mixed, it is mixed with sodium alginate to obtain saccharomycete Close liquid.Certain density calcium chloride solution is dissolved and be diluted to 1% glacial acetic acid, weighs suitable chitosan, is added to above-mentioned In calcium chloride solution, the pH value of chitosan solution is adjusted to 5.5;
It is molten that the mixed liquor of saccharomycete, powdered glucose and sodium alginate is added dropwise to syringe to chitosan-calcium chloride dropwise Film formation reaction is carried out in liquid, stands, microcapsules are collected by filtration, it is micro- to get yeast sustained release with the brine microballoon of sterilizing Capsule;
The mass ratio 1 of saccharomycete, powdered glucose:1, saccharomycete 1.5g/100mL, solution requirement are:Sodium alginate concentration 2.7g/100mL, chitosan concentration 0.8g/100mL, calcium chloride concentration 2.0g/100mL, embedding rate 74.2%.
Moreover, the method for the step (2) dry jujube sterilization is:
The uniform jujube of quality is chosen, cleaning classification is rolled through pressure-air and cleaned, and aqueous cleaning solution is 0.5% hypochlorous acid Aqueous solution, solution contain 5% surfactant sodium sulfonate, ozone 1%, and miscellaneous bacteria, pesticide and growth to purify dry jujube surface are adjusted The biochemical residue such as section agent, insect excretions wash, and then clean 10min-20min with clear water, spare.
Moreover, the preparation method of the pressure-sensitive microcapsules of flavored type is:The gelatin for weighing certain mass is dissolved in distilled water, It is made into a concentration of certain density 1% gelatin solution, is put into clean beaker, pH to 6.5 is adjusted, olive oil is added, It under 50 DEG C of water bath conditions, is emulsified using high speed shear pre-emulsification machine, time 3min forms uniform emulsion.It prepares 1.5% pectin solution, is added dropwise in above-mentioned emulsion, and under the conditions of 50 DEG C, constant temperature stirs 5min, is then added dropwise 1% acetum, it is 4.0-4.9 so that system is reached pH values, and gelatin and pectin is promoted to agglomerate.With 10%NaOH solution, 0.1% Red jujube flavor, 0.1% ethyl alcohol regulation system pH to 9.0, are added, after 5min, are added 10-20%'s while stirring NaHCO3Powder makes system be cooled to 10 DEG C hereinafter, 20min is persistently stirred, with 0.05-0.1% gluconic acids-with ice water cooling Delta-lactone or 1-5wt% calcium chloride cure 30min, and after the completion of solidification, by microcapsules suspension stratification, it is clear to remove lower layer Liquid is washed for several times with clear water, is filtered, dry, forms the pressure-sensitive microcapsules of flavored type of 80-100um.
The present invention compared with prior art the advantages of and good effect it is as follows:
Yeast slow-release microcapsule is added in the present invention in fermentation, persistently supplements saccharomycete, makes fermentation process continue to carry out, obtains The just early fermentation arrived is abundant, and aroma is strong.
The present invention in wine jujube be added the pressure-sensitive microcapsules of flavored type, capsule can sustained release go out aroma, make wine jujube Finished product can continue to keep fragrance.
This patent prepares the double cross-linked hydrogels of metallic element, will be puffing after crosslinking protein be dipped into metal nutritional ingredient liquid In body, soybean protein after puffing has the specific surface area of bigger, can the more metal ions of load, realize metal from The efficient supplement of son.
Specific implementation mode
Below by specific embodiment, the invention will be further described, and following embodiment is descriptive, is not limit Qualitatively, protection scope of the present invention cannot be limited successively.
Early period of the invention carries out alcoholic fermentation using the yeast of inoculation, with alcohol and CO2Increase, under yeast activity Drop, the saccharomycete in slow-release microcapsule, starts to discharge at this time, and the glucose continued in jujube carries out alcoholic fermentation.
This product bright, aroma be strong, sweet and sour taste, and composite micro-capsule enhances the nutrients such as calcium, zinc, selenium, The jujube fragrance of product, strong wine aroma are increased when chewing.
A kind of wine jujube and processing method, formula and technique are as follows
Dry jujube 100-120 parts, it is 10-12 parts of white wine, 100-110 parts of saccharomycete, 50-60 parts of yeast slow-release microcapsule, compound 10-15 parts of microcapsules, technique is as follows:
(1) raw material selects
Choose free from insect pests, it is not damaged, fissureless dry jujube 100-120 part as raw material.
(2) sterilization
The uniform jujube of quality is chosen, cleaning classification is rolled through pressure-air and cleaned, and aqueous cleaning solution is 0.5% hypochlorous acid Aqueous solution, solution contain 5% surfactant sodium sulfonate, ozone 1%, and miscellaneous bacteria, pesticide and growth to purify dry jujube surface are adjusted The biochemical residue such as section agent, insect excretions wash, and then clean 10min-20min with clear water, spare;
(3) wine is rinsed
It after cleaning, drains, jujube is done the wash in 60 ° of white wine.By jujube:Wine=10:1-10 is done the wash.
(4) yeast slow-release microcapsule is prepared
Using chitosan/sodium alginate as wall material, saccharomycete is core material.
By the barms after activation, access YPD 37 DEG C of aerobic cultures of culture medium, will culture gained in stationary phase After saccharomycete is centrifuged, supernatant is abandoned, thalline is collected, is washed with 0.9g/100m L sterile salines, centrifuged again, Supernatant is abandoned, bacterium mud is collected.Obtained bacterium mud will be collected to be added in sodium alginate soln, be uniformly mixed, obtain saccharomycete with Sodium alginate mixed liquor.Certain density calcium chloride solution is dissolved and is diluted to 1% glacial acetic acid, weighs suitable chitosan, It is added in above-mentioned calcium chloride solution, adjusts the pH value of chitosan solution to 5.5.By saccharomycete, powdered glucose and sodium alginate Mixed liquor be added dropwise to dropwise in chitosan-calcium chloride solution with syringe and carry out film formation reaction, stand, micro- glue be collected by filtration Capsule, with the brine microballoon of sterilizing to get yeast slow-release microcapsule.The mass ratio 1 of saccharomycete, powdered glucose:1, ferment Female bacterium 1.5g/100mL, solution requirement are:Sodium alginate concentration 2.7g/100mL, chitosan concentration are 0.8 g/100mL, chlorination Calcium concentration is 2.0g/100mL, embedding rate 74.2%.Microcapsules Size is 80-100um.
Saccharomycete in slow-release microcapsule core material carries out alcoholic fermentation using the glucose in jujube.
(5) alcoholic fermentation
Inoculation yeast 100-110 parts in the feed (10% inoculum concentrations), 50-60 parts of yeast slow-release microcapsule carry out alcohol Fermentation.Control 26-28 DEG C of primary fermentation phase, 10h;30-34 DEG C of lord ferment period, 12h;It ferments afterwards 30-32 DEG C of phase, 40h.Starch and Dextrin generates glucose by Glucoamylase hydrolysis, generates alcohol and CO2
Protein generates low molecule nitrogenous compound under protease hydrolytic.
(6) altar is entered
Jujube is packed into the osculum jar with plastic mattress, the sealing of altar water seal method completely cuts off air, goes out altar after 10d.
(7) composite micro-capsule is prepared
I) nutrient --- prepared by double cross-linked hydrogels
By soybean protein:Starch=1:In 1 dissolving water, addition 7.5U/g soybean protein isolates enzyme (i.e. SPI enzymes), 80 DEG C 10-15% starch soybean protein mixed gel obtained after stirring 10-20min, the final concentration of 5-10wt% of soybean protein.It will mix It closes gel to be sent into Bulking tank, in 0.1-0.5MPa, 70-90 DEG C, low temperature expanding 3-5min.Valve pressure release is opened, particle is taken out, Broken, the inside for forming 0.5-1mm is full of the swelling granular in hole.By 2-3 parts of calcium gluconates, 1-2 parts of zinc gluconates, 0.1-0.5 parts of k-selenocarrageenans are placed in 50-100 parts of water, and composite solution is made.Swelling granular is immersed in above-mentioned solution, 10-20min is impregnated, drying is taken out.Metal nutrient is loaded in the reticular structure of swelling granular surface and inside.Two Secondary roller coating:Particle after drying is immersed in 10% soy protein gel, 3-5min is stirred, it is dry, form 80-100um not The enwrapped granule of rule, obtains metal nutrient --- double cross-linked hydrogel nutritional granulars.
Ii) prepared by the pressure-sensitive microcapsules of flavored type
Using gelatin 1% and 1.5% compound of pectin as wall material, NaHCO3, Red jujube flavor, ethyl alcohol be core material, 0.5% olive Olive oil is emulsifier, and 0.05-0.1% glucono-δ-lactones are curing agent or the calcium chloride of 0.5-1%.
The gelatin for weighing certain mass is dissolved in distilled water, is made into a concentration of certain density 1% gelatin solution, is put into In clean beaker, pH to 6.5 is adjusted, olive oil is added, under 50 DEG C of water bath conditions, is carried out using high speed shear pre-emulsification machine Emulsification, time 3min form uniform emulsion.The pectin solution for preparing 1.5%, is added dropwise in above-mentioned emulsion, Under the conditions of 50 DEG C, constant temperature stirs 5min, and 1% acetum is then added dropwise, and it is 4.0-4.9 so that system is reached pH value, is promoted Gelatin and pectin is set to agglomerate.With 10%NaOH solution, 0.1% Red jujube flavor, 0.1% ethyl alcohol regulation system pH to 9.0, while stirring It mixes side to be added, after 5min, the NaHCO of 10-20% is added3Powder makes system be cooled to 10 DEG C hereinafter, persistently stirring with ice water cooling 20min is mixed, it will be micro- after the completion of solidification with 0.05-0.1% glucono-δ-lactones or 1-5wt% calcium chloride solidification 30min Capsule suspension stratification, removes subnatant, is washed for several times, is filtered with clear water, dry, forms the increasing of 80-100um The pressure-sensitive microcapsules of odor type.
With CO2Increase, due to pressure increase, release the perfume (or spice) such as Red jujube flavor, the ethyl alcohol in pressure-sensitive microcapsules core material Gas substance increases product fragrance.
By above-mentioned nutrient --- composite micro-capsule is made in the pressure-sensitive microcapsules mixing of double cross-linked hydrogels, flavored type.It will This capsule is spray-dried to be made density 0.8g/cm3, water content 3.16%, solubility 96.0%, average diameter (5.7 ± 0.65) spherical particles of um.
(8) smear, pack, sterilization
At 10-15 parts of even application jujube folds of composite micro-capsule.It is then ultraviolet to kill with polypropylene film nitrogen-filled packaging Bacterium, UV intensity 8kJ/m2-12kJ/m2, time 30min-40min, obtained product.
Main nutrient composition content in jujube
The hydrochloric acid in gastric juice dissolution rate of metal particle
Metal particle Hydrochloric acid in gastric juice dissolution rate Metal particle Hydrochloric acid in gastric juice dissolution rate
Selenium 0.41% Calcium 8.93%
Zinc 11.24%
The content of micronutrient metal element
Micronutrient metal element Content Micronutrient metal element Content
Selenium 245μg/kg Calcium 4990mg/kg
Zinc 166mg/kg
Other data improved
Project Increase rate Content Project Increase rate Content
Dietary fiber 23.3% 35g/kg Amino acid 19.5% 3.15g/kg
Multi-vitamins 9.85% 145mg/kg Fragrance 39.8% 55.3%

Claims (4)

1. a kind of processing method of wine jujube, it is characterised in that:Technique is as follows
(1) raw material selects
Free from insect pests, not damaged, fissureless dry jujube are chosen as raw material;
(2) dry jujube sterilization
(3) dry jujube rinses wine
It after cleaning, drains, jujube is done the wash in 60 ° of white wine;
(4) yeast slow-release microcapsule is prepared, and using chitosan/sodium alginate as wall material, saccharomycete is core material.
(5) alcoholic fermentation
Inoculation 5-10% yeast, 5-10% yeast slow-release microcapsules in the feed, carry out alcoholic fermentation, control primary fermentation phase 26- 28 DEG C, 10h;30-34 DEG C of lord ferment period, 12h;It ferments afterwards 30-32 DEG C of phase, 40h;
(6) altar is entered
Jujube is packed into the osculum jar with plastic mattress, the sealing of altar water seal method completely cuts off air, goes out altar after 10-15d;
(7) composite micro-capsule is prepared
I) nutrient microcapsules
By soybean protein:Starch=1:In 1 dissolving water, 7.5U/g soybean protein isolate enzymes are added, after 80 DEG C are stirred 10-20min 10-15% starch soybean protein mixed gel obtained, the final concentration of 5-10wt% of soybean protein;Mixed gel is sent into puffing In tank, in 0.1-0.5MPa, 70-90 DEG C, low temperature expanding 3-5min;
Valve pressure release is opened, particle is taken out, is crushed, the inside for forming 0.5-1mm is full of the swelling granular in hole.By 2-3 parts of Portugals Grape Calciofon, 1-2 part zinc gluconate, 0.1-0.5 parts of k-selenocarrageenans are placed in 50-100 parts of water, and composite solution is made;It will Swelling granular is immersed in above-mentioned solution, impregnates 10-20min, takes out drying;Metal nutrient is loaded into swelling granular table In the reticular structure of face and inside;
Secondary roller coating:Particle after drying is immersed in 10% soy protein gel, 3-5min is stirred, it is dry, form 80- The irregular enwrapped granules of 100um, obtain nutrient microcapsules;
Ii) prepared by the pressure-sensitive microcapsules of flavored type
Using gelatin 1% and 1.5% compound of pectin as wall material, NaHCO3, Red jujube flavor, ethyl alcohol be core material, 0.5% olive oil is Emulsifier;Spherical particles are made by this capsule is spray-dried;
Nutrient microcapsules in composite micro-capsule:The pressure-sensitive microcapsules mass ratio of flavored type is according to 1:1-5;
(8) smear, pack, sterilization
At composite micro-capsule even application jujube fold, with polypropylene film nitrogen-filled packaging.
2. the processing method of wine jujube according to claim 1, it is characterised in that:(4) the step prepares yeast and is sustained micro- glue The step of capsule, is as follows:
By the barms after activation, YPD 37 DEG C of aerobic cultures of culture medium are accessed, by the yeast in stationary phase of culture gained After bacterium is centrifuged, supernatant is abandoned, thalline is collected, is washed with 0.9g/100mL sterile salines, centrifuged again, abandon supernatant Liquid collects bacterium mud;
Obtained bacterium mud will be collected to be added in sodium alginate soln, be uniformly mixed, obtain saccharomycete and sodium alginate mixed liquor. Certain density calcium chloride solution is dissolved and be diluted to 1% glacial acetic acid, weighs suitable chitosan, is added to above-mentioned calcium chloride In solution, the pH value of chitosan solution is adjusted to 5.5;
The mixed liquor of saccharomycete, powdered glucose and sodium alginate is added dropwise to syringe in chitosan-calcium chloride solution dropwise Film formation reaction is carried out, stands, microcapsules is collected by filtration, with the brine microballoon of sterilizing to get yeast slow-release microcapsule;
The mass ratio 1 of saccharomycete, powdered glucose:1, saccharomycete 1.5g/100mL, solution requirement are:Sodium alginate concentration 2.7g/ 100mL, chitosan concentration 0.8g/100mL, calcium chloride concentration 2.0g/100mL, embedding rate 74.2%.
3. the processing method of wine jujube according to claim 1, it is characterised in that:The method of step (2) dry jujube sterilization For:
The uniform jujube of quality is chosen, cleaning classification is rolled through pressure-air and cleaned, and aqueous cleaning solution is that 0.5% hypochlorous acid is water-soluble Liquid, solution contain 5% surfactant sodium sulfonate, ozone 1%, to purify miscellaneous bacteria, pesticide and the growth regulator on dry jujube surface It is washed Deng biochemical residue, insect excretions, then cleans 10min-20min with clear water, it is spare.
4. the processing method of wine jujube according to claim 1, it is characterised in that:The preparation method of the pressure-sensitive microcapsules of flavored type For:The gelatin for weighing certain mass is dissolved in distilled water, is made into a concentration of certain density 1% gelatin solution, is put into cleaning Beaker in, adjust pH to 6.5, be added olive oil, under 50 DEG C of water bath conditions, use high speed shear pre-emulsification machine carry out breast Change, time 3min forms uniform emulsion.The pectin solution for preparing 1.5%, is added dropwise in above-mentioned emulsion, 50 Under the conditions of DEG C, constant temperature stirs 5min, and 1% acetum is then added dropwise, and it is 4.0-4.9 so that system is reached pH value, is promoted Gelatin and pectin cohesion.With 10%NaOH solution, 0.1% Red jujube flavor, 0.1% ethyl alcohol regulation system pH to 9.0, while stirring It is added, after 5min, the NaHCO of 10-20% is added3Powder makes system be cooled to 10 DEG C hereinafter, lasting stirring with ice water cooling 20min cures 30min, after the completion of solidification, by microcapsules with 0.05-0.1% glucono-δ-lactones or 1-5wt% calcium chloride Suspension stratification, removes subnatant, is washed for several times, is filtered with clear water, dry, forms the flavored type of 80-100um Pressure-sensitive microcapsules.
CN201810492545.7A 2018-05-22 2018-05-22 wine jujube and processing method Withdrawn CN108669505A (en)

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