CN107361137A - A kind of stirred type nutritional yogurt and preparation method thereof - Google Patents

A kind of stirred type nutritional yogurt and preparation method thereof Download PDF

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Publication number
CN107361137A
CN107361137A CN201710806873.5A CN201710806873A CN107361137A CN 107361137 A CN107361137 A CN 107361137A CN 201710806873 A CN201710806873 A CN 201710806873A CN 107361137 A CN107361137 A CN 107361137A
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China
Prior art keywords
juice
pleurotus eryngii
asparagus
stirred yoghurt
preparation
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CN201710806873.5A
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Chinese (zh)
Inventor
许俊齐
贾君
谢春芹
凡军民
曹淼
洪文龙
许飞
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Jiangsu Polytechnic College of Agriculture and Forestry
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Jiangsu Polytechnic College of Agriculture and Forestry
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Priority to CN201710806873.5A priority Critical patent/CN107361137A/en
Publication of CN107361137A publication Critical patent/CN107361137A/en
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23CDAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C9/00Milk preparations; Milk powder or milk powder preparations
    • A23C9/12Fermented milk preparations; Treatment using microorganisms or enzymes
    • A23C9/13Fermented milk preparations; Treatment using microorganisms or enzymes using additives
    • A23C9/1307Milk products or derivatives; Fruit or vegetable juices; Sugars, sugar alcohols, sweeteners; Oligosaccharides; Organic acids or salts thereof or acidifying agents; Flavours, dyes or pigments; Inert or aerosol gases; Carbonation methods
    • 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
    • A23V2400/00Lactic or propionic acid bacteria
    • A23V2400/11Lactobacillus
    • A23V2400/123Bulgaricus
    • 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
    • A23V2400/00Lactic or propionic acid bacteria
    • A23V2400/21Streptococcus, lactococcus
    • A23V2400/249Thermophilus
    • 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
    • A23V2400/00Lactic or propionic acid bacteria
    • A23V2400/51Bifidobacterium
    • A23V2400/533Longum

Abstract

The invention discloses a kind of stirred yoghurt and preparation method thereof, stirred yoghurt includes the component of following weight/mass percentage composition:5 8% asparagus juice, 3 5% pleurotus eryngii juices, 80 85% fresh milks, 4 6% sucrose, 3 4% composite ferments;The composite ferment is that mass ratio is 1:1:1 lactobacillus bulgaricus, streptococcus thermophilus and bifidobacterium longum.The preparation method of the stirred yoghurt comprises the steps of:Raw material preparation, homogeneous, fermentation, after-ripening, the stirred yoghurt stable performance prepared by this method.Stirred yoghurt prepared by the present invention need not add stabilizer, nutritious, and various crowds can be adapted to eat.

Description

A kind of stirred type nutritional yogurt and preparation method thereof
Technical field
The present invention relates to a kind of Yoghourt and preparation method thereof, more particularly to a kind of stirred type nutritional yogurt and its preparation side Method.
Background technology
Stirred yoghurt is to be stirred auxiliary material with the yogurt gel body obtained after fermentation ends to be well mixed, and common The characteristics of Yoghourt is compared with multiple tastes, nutrition more horn of plenty, selling point mainly by stirring when the auxiliary material that is added and It is fixed.But the protein body of stirred yoghurt easily precipitates in acid condition, stabilization is mainly added in Yoghourt system at present Agent solves the problems, such as albumen precipitation, and conventional stabilizer is pectin and sodium carboxymethylcellulose (CMC), or for modified starch and Dextrin;Pectin, because its absorption be combined with each other between protein surface and pectin and pectin, can be prevented jointly compared with other stabilizers Only albumen precipitates, but pectin has the following disadvantages as stabilizer, first, price is costly;Second, pectin mouthfeel is coagulated Weight, viscosity are big.Equally, CMC is equally faced with the shortcomings that mouthfeel is more sticky as stabilizer.
The thickener of above-mentioned natural origin itself is nontoxic, but blood glucose is easily raised as sucrose, in some instances it may even be possible to leads Cause more violent blood glucose response.Blood glucose raises on the contrary after some consumers have drunk yoghurt without sugar, it is likely to is drawn by thickener Rise, rather than because of lactose constituent intrinsic in milk, because natural lactose can't cause blood glucose quickly to raise.
Flammulina velutipes are the main actives of asparagus, mainly pass through glucosides key connection by the monose of more than 10 The polymer formed, 18 kinds of amino acid are also contained in asparagus, mostly brain needs, and has and promotes intellectual development, enhancing note The advantages of recalling power, in addition, asparagus also has reducing blood lipid, norcholesterol, antifatigue, anti-inflammatory, protect liver is dirty, improves a poor appetite, helps The advantages that digestion.
Pleurotus eryngii fructification contains 18 kinds of amino acid (AA), including 8 kinds of essential amino acids (EAA), is easily inhaled by human body Receive and utilize, be also enriched in a variety of mineral elements and vitamin needed by human, its nutritive value can compare favourably with meat, birds, beasts and eggs.According to Determine, free aminoacid content is 23.6g/kg in pleurotus eryngii fructification, and total amount of essential amino acids accounts for total amino acid content More than 40%, meet IAO/WHO proposition protein pattern.In addition, more importantly containing abundant polysaccharide in pleurotus eryngii Class material, in food industry and medical and health etc., have a good application prospect.
Chinese patent 200910244882.5 discloses《A kind of preparation method of yoghourt containing edible fungus granules》, disclose one kind Purpose is the Yoghourt for improving body immunity, is asparagus particle wherein in edible mushroom.Chinese patent 201410535391.7 In further asparagus is beaten, extraction processing, be added in Yoghourt system.
The content of the invention
Goal of the invention:The present invention provides a kind of stirred yoghurt that need not add stabilizer, adds the nutriture value of Yoghourt The problem of solved while value needs to add stabilizer and thickener in current allotment type Yoghourt, and mouthfeel is sticky.This other hair The bright preparation method for additionally providing the stirred yoghurt.
Technical scheme:A kind of stirred yoghurt of the present invention, include the component of following weight/mass percentage composition:5-8% gold Pin mushroom juice, 3-5% pleurotus eryngii juices, 80-85% fresh milks, 4-6% sucrose, 3-4% composite ferments;The composite ferment is matter Amount is than being 1:1:1 plus Leah lactobacillus, streptococcus thermophilus and Bifidobacterium.The fresh milk is selected from fresh cow milk or fresh sheep breast.
The Yoghourt includes the component of following percentage composition:6-8% asparagus juice, 3-4% pleurotus eryngii juices, 80-84% are fresh Breast, 4-6% sucrose, 3-4% composite ferments.
The mass ratio of the asparagus juice and pleurotus eryngii juice is 2:1.Asparagus juice is 2 with pleurotus eryngii juice mass ratio:When 1, The stability of Yoghourt is best, and now the system of Yoghourt is not easy to be influenceed by extraneous factor.
The preparation method of above-mentioned stirred yoghurt is prepared, is comprised the steps of:(1) fresh milk, asparagus juice and apricot Bao are prepared Mushroom juice;(2) asparagus juice, sucrose are added in fresh milk, stirred, homogeneous feed liquid;Sucrose in Yoghourt as being most widely used One of sweetener, its content can influence the fermenting speed of Yoghourt, relax the tart flavour of finished product and improve the viscosity of yoghurt product; (3) compound after homogeneous in step (2) is sterilized into 10min at 95 DEG C, caused a disease and other are bad micro- with destroying or killing Biology, and the affinity of protein and water in breast can be improved, promote lactalbumin to be denatured, improve structural state, and production can be improved Product denseness and prevent whey from separating out.The fresh milk after homogeneous is quickly cooled to 40-45 DEG C, access composite ferment fermentation, obtained sour Breast;(4) yogurt after fermentation is cooled to 5-7 DEG C, adds pleurotus eryngii juice, stir;(5) acid that will be obtained in step (4) Breast places 12-24h in 4-6 DEG C, obtains stirred yoghurt.
In step (1), the fresh milk is under the conditions of 4-10 DEG C, homogenization pressure 25-30MPa, handles 10-15min, then The sterilization processing 20-30s at 85-90 DEG C.Fresh milk carry out homogenization purpose be not only make raw material fully mix, favorably In the stability and viscosity that improve Yoghourt, quality is fine and smooth, good mouthfeel, and the fat in fresh milk can be wrapped in into protein It is interior, prevent from being free in outer aliphatic acid corruption, improve the stability of product.
In step (1), after asparagus is to be dried to, crushed, sieved the asparagus juice, addition mass percent is 0.7- In 1% cellulase solution, 2-4h, pH value of solution 6-6.5, asparagus and cellulase solution are digested under the conditions of 50-60 DEG C Solid-liquid ratio is 1:10-15g/ml.Solution of the asparagus after enzyme hydrolysis is in addition to containing abundant amino acid, also containing a large amount of Polysaccharide, flammulina velutipes composition is mainly glucan, and flammulina velutipes are in good taste compared with pectin or CMC, without sticky Sense, in addition to as nutritional ingredient, in the Yoghourt system of the present invention, the albumen in stabilizing sour milk is can be very good, improves acid The stability of milk, experiment proves that, without extra addition stabilizer.
In step (1), after pleurotus eryngii juice is to be dried to, crushed, sieve the pleurotus eryngii juice, add water, amount of water is and apricot Abalone mushroom mass ratio is 5-10:1, homogeneous, obtain pleurotus eryngii juice.Pleurotus eryngii juice is added in the present invention in addition to its nutritive value, apricot Bao The polysaccharide enriched in mushroom, by stirring, can be very good absorption around its protein, form stable electricity in Yoghourt system Lotus is identical, mutually exclusive spheroid, can dramatically increase the stability of Yoghourt.
In step (2), the homogeneous is using double-stage homogenization technique, feed liquid is preheated into 65-75 DEG C, under 25-30MPa Matter handles 10-15min, then the homogeneous 5-10min under 15-20MPa homogenization pressures.Using the main purpose of double-stage homogenization technique In the particle diameter for further reducing fat globule in Yoghourt, fat floating phenomenon will not be produced, makes newborn system more stable, prevents yogurt " oil layer " is formed during the fermentation, the sensitiveness of fat oxidation can be reduced in addition, and the particle diameter for reducing Yoghourt can have Stronger flavor and more preferable mouthfeel, mouthfeel is more preferably fine and smooth.In step (3), the fermentation is that will access the mixed of composite ferment Close material and be placed in 40-45 DEG C of ferment at constant temperature 6-7h.
In step (4), the stirring is 5-7 DEG C, mixing speed 40-50r/min, stirs 30-60min.
Beneficial effect:The asparagus juice that the present invention is added after enzymolysis at the beginning of Yoghourt fermentation, adds apricot after the fermentation has been completed Abalone mushroom juice, enter back into afterripening fermentation process, retaining on asparagus and the original nutrition foundation of pleurotus eryngii, using asparagus and Original polysaccharide is as stabilizer in pleurotus eryngii so that without adding such as sodium carboxymethylcellulose stabilizer in Yoghourt system, Make the nutrition of Yoghourt more abundant, unique flavor, stable texture state, taste lubrication.
Brief description of the drawings
Fig. 1 is preparation method process chart of the present invention.
Embodiment
First, raw material sources
1.1 De Shi lactobacillus bulgaricus Lactobacillus delbrueckiisubspbulgaricus, thermophilic chain Coccus Streptococcus thermophilus, bifidobacterium longum Bifidobacterium longum, Shandong Zhong Kejia hundred million Bioengineering Co., Ltd;
1.2 asparagus and pleurotus eryngii are provided by Jiangsu edible mushroom research institute;
1.3 fresh cow milks, fresh sheep breast, sucrose etc. are delicatessen food level.
2nd, detection method
2.1pH measure
With the pH of pH meter determination sample, pH meter produces for Mettler-Toledo Instrument (Shanghai) Co., Ltd..
2.2 Titrable acid angle value
Titratable acidity uses clean Er Nieerdu, to neutralize the sodium hydroxide that the acidity in 100ml breasts consumes 0.1mol/L Milliliter number.The sodium hydroxide for consuming 1mL0.1mol/L is 1 ° of T
2.3 apparent viscosity
Using rotary viscosimeter.According to yogurt range of viscosities, from suitable rotor, tested under the conditions of 8 DEG C, Experimental data is recorded during 30s, is averaged after measuring data three times respectively.
2.4 centrifugation rates determine
The Yoghourt that 10ml is prepared is added in centrifuge tube, is placed in a centrifuge centrifugation, centrifugal speed is 3000 turns/min, Centrifugation time is 15min, removes supernatant, calculates rate of deposition.
Rate of deposition=centrifuged deposit quality/sample quality * 100%
2.5 Stability Determination
Placed 30 days under the conditions of sample is placed in into 4 DEG C, see whether to be layered.
The measure of 2.6 retentivenesses
Asparagus, pleurotus eryngii stirred yoghurt sample 15-20g are taken, under the conditions of l0 DEG C, 3500g centrifugation 30min, is inclined Supernatant thing, centrifuge tube is kept inversion state l0min, weighed immediately after terminating, the quality of centrifugal sediment and sample compares percentage Number is WHC values.
Yoghourt retentiveness (%)=(centrifugal sediment weight/example weight) × 100
2.7 subjective appreciation
Materials and be placed in beaker, color and luster and structural state are observed under natural light.Its smell is heard, is gargled with warm water, Taste flavour.Organoleptic quality is scored at 3 index summations.Sensory evaluation is entered by 20 Majors of Food classmates with experience of judging Row evaluation, takes its average value.
Outward appearance (10-30 points):Exquisiteness lubrication, tissue is coherent homogeneous, and no caking separates out with layering, no whey, color and luster is consistent, Without precipitation.
Mouthfeel (10-40 points):Smooth in taste, tart flavour are mellow.
Flavor (10-30 points):The sour-sweet degree of yogurt is moderate, yogurt is strongly fragrant, and unique yogurt ferment is fragrant.
3rd, preparation method
3.1 fresh milks prepare
After raw material fresh cow milk carries out an acceptance inspection, after meeting acceptance criteria, the pretreatment of Fresh Milk is carried out under the conditions of 4 DEG C, By fresh cow milk homogenization pressure control 25-30MPa processing 10min, then the sterilization processing 20s at 85 DEG C, then cool down, it is standby.Together The mode of sample is handled fresh sheep breast, and the fresh sheep breast that must be handled well is standby.
3.2 asparagus juice prepare
Choose mushroom type it is good, without rotting, no fermentation alcohol taste and overall logical white asparagus, after cleaning, cutting 3- 5cm segments, 55 DEG C of baking ovens are put into, are dried to constant weight, 50 mesh sieves are crossed after then being crushed with pulverizer;After sieving, cellulose is added Enzyme solutions, the mass percent of solution cellulase are 0.7%, control solid-liquid ratio 1:15g/ml, regulation pH value of solution are 6.0, 2h is digested under the conditions of 55 DEG C of temperature, the solution after enzymolysis is sterilized 15-18min at 98-100 DEG C, 4 DEG C of preservations are standby after cooling With.
3.3 pleurotus eryngii juices prepare
Pleurotus eryngii is cut into fine particle, processing is dried, 55 DEG C of baking ovens is put into, constant weight is dried to, after drying Pleurotus eryngii crosses 50 mesh sieves after being crushed with pulverizer;After sieving, the water of 10 times of pleurotus eryngii quality is added, mashing processing is carried out, obtains apricot Abalone mushroom juice, gained pleurotus eryngii juice sterilize 15-18min at 98-100 DEG C, and 4 DEG C save backup after cooling.
It is prepared by 3.4CMC solution
Carboxymethyl cellulose (CMC) is dissolved in the aqueous solution, prepares CMC solution, the apparent viscosity of CMC solution is determined, makes The apparent viscosity of the solution and the asparagus juice of 3.2 methods preparation and the pleurotus eryngii juice of 3.3 methods preparation are obtained using mass ratio as 2:1 The solution viscosity being mixed to get is identical, is 350-400mPas.
3.5 sample preparation
Prepare fresh cow milk, asparagus juice and pleurotus eryngii juice according to 3.1,3.2,3.3 steps, by asparagus juice, sucrose It is added in fresh milk, using double-stage homogenization technique, feed liquid is preheated to 70 ± 5 DEG C, homogenization 15min under 30MPa, then existed Homogeneous 8min under 15MPa homogenization pressures, the compound after homogeneous is sterilized into 10min at 95 DEG C, and be cooled fast to 40 DEG C, connect Enter mass ratio for 1:1:1 plus Leah lactobacillus, streptococcus thermophilus and bifidobacterium longum composition composite ferment, in 40 DEG C of perseverances Temperature fermentation 6h, obtains yogurt, and the yogurt after fermentation is cooled into 6 ± 1 DEG C, adds pleurotus eryngii juice, at a temperature of 6 ± 1 DEG C, with 45 ± 5 turns/min stirs 40min, and obtained yogurt is placed into 20h in 5 ± 1 DEG C, obtains stirred yoghurt.
4th, sample physical and chemical property determining
4.1 sample Physicochemical tests
Sample is prepared according to 3.5 methods, and asparagus juice and pleurotus eryngii juice total amount are 9kg in sample system, and remaining is 4kg sugarcanes Sugar, 84kg fresh cow milks, 3kg composite ferments.The mass ratio of asparagus juice and pleurotus eryngii juice is set as 10:1,5:1,3:1,2:1, 1:1,1:2,1:3,1:5。
Sample is done to following processing respectively:
Heat treatment:Sample is positioned under 40 DEG C of constant temperatures and stored 10 days, whether observation sample is layered.
Acid treatment:Hydrochloric acid solution is added in the sample so that the pH of sample is 2, room temperature 10 days, and whether is observation sample Layering.
Normal temperature processing:Sample is placed 30 days in 25 DEG C, whether observation sample is layered.
Ion processing:Sodium chloride is added in the sample so that concentration of the sodium chloride in system is 1mol/L.
The asparagus of table 1, Polysaccharide in Pleurotus eryngii system influence on sample stability
As seen from the results in Table 1, the ratio of asparagus juice and pleurotus eryngii juice is 3:1 to 1:In the range of 1, to its yogurt sample Be heat-treated, acid treatment and normal temperature processing when, sample stability is substantially better than other adding proportion groups.
The above-mentioned sample not being layered is continued to handle as follows:It is transferred to after storing 6h under the conditions of -4 DEG C under the conditions of 48 DEG C Storage 6h is a cycle, and above-mentioned sample is continued with into 4 cycles, observes sample delamination, the results showed that, work as asparagus The addition mass ratio of enzymolysis liquid and pleurotus eryngii juice is 2:When 1, the sample by above-mentioned processing is not layered, and other samples occur not With the layering of degree.
4.2 sample fermentation tests
Sample is prepared according to 3.5 methods, and asparagus juice and pleurotus eryngii juice total amount are 9kg in sample system, and asparagus juice is 6kg, pleurotus eryngii juice 3kg, remaining is 4kg sucrose, 84kg fresh cow milks, 3kg leavenings.The composition of leavening is shown in Table 2, surveys respectively Determine influence of the different fermentations agent system for the stirred yoghurt system, measurement result is shown in Table 2.
The leavening of table 2 influences on properties of sample
Lactobacillus bulgaricus, streptococcus thermophilus and bifidobacterium longum are for stirred type asparagus, pleurotus eryngii juice Yoghourt PH value, retentiveness and sensory evaluation scores all have considerable influence.Thought by test result analysis, pH value is with thermophilus in leavening The reduction of coccus content and in the trend reduced, when coccus ratio is higher in ferment agent for sour milk, Yoghourt viscosity is higher, is advantageous to acid Milk keeps good quality, and stickiness is good, and sensory evaluation scores are also higher.It is 1 in three kinds of strain adding proportions:1:When 1, pH value reaches 4.65th, retentiveness is all better than other test groups up to 31.5% and sensory evaluation scores.
By comparing, 1 is added in three kinds of strains:1:When 1, the stability and retentiveness of stirred yoghurt are preferable, Yoghourt Quality is higher, and storage period occur whey separate out the time it is later.
5th, sample preparation
Embodiment 1:According to 3.5 preparation method, the sample containing following component is prepared:5kg asparagus juice, 4kg sucrose, 85kg fresh cow milks, 3kg composite ferments, 3kg pleurotus eryngii juices.
Embodiment 2:8kg asparagus juice, 5kg sucrose, in 80kg fresh cow milks, 3kg composite ferments, 4kg pleurotus eryngii juices, its Remaining same embodiment 1.
Embodiment 3:6kg asparagus juice, 4kg sucrose, in 82kg fresh cow milks, 3kg composite ferments, 5kg pleurotus eryngii juices, its Remaining same embodiment 1.
Embodiment 4:7kg asparagus juice, 6kg sucrose, in 81kg fresh cow milks, 3kg composite ferments, 3kg pleurotus eryngii juices, its Remaining same embodiment 1.
Embodiment 5:5kg asparagus juice, 5kg sucrose, in 82kg fresh cow milks, 4kg composite ferments, 4kg pleurotus eryngii juices, its Remaining same embodiment 1.
Embodiment 6:5kg asparagus juice, 4kg sucrose, in the fresh sheep breasts of 84kg, 4kg composite ferments, 3kg pleurotus eryngii juices, its Remaining same embodiment 1.
Embodiment 7:6kg asparagus juice, 4kg sucrose, in the fresh sheep breasts of 83kg, 4kg composite ferments, 3kg pleurotus eryngii juices, its Remaining same embodiment 1.
Comparative example 1:Without asparagus juice, remaining component is 5kg sucrose, in 85kg fresh cow milks, 4kg composite ferments, and 6kg apricots Abalone mushroom juice, remaining is the same as embodiment 1.
Comparative example 2:Without pleurotus eryngii juice, remaining component is 6kg asparagus juice, 5kg sucrose, in 85kg fresh cow milks, 4kg it is compound Leavening, remaining is the same as embodiment 1.
Comparative example 3:Without asparagus juice, without pleurotus eryngii juice, remaining component is 8kgCMC solution, 4kg sucrose, the fresh oxen of 85kg Breast, 3kg composite ferments, remaining is the same as embodiment 1.
6th, result determines
The sample detection result of table 3
Performance measurement is carried out to sample, the results are shown in Table 3.It can be seen from the result of table 3 when in system without asparagus juice with It is very big to the stability influence of sample during pleurotus eryngii juice.Work as it can be seen from embodiment 1 and comparative example 3 by asparagus juice and apricot Very big to taste-affect when abalone mushroom juice changes stabilizer CMC solution into, the denseness of Yoghourt increases, and flavor is poor.

Claims (10)

1. a kind of stirred yoghurt, it is characterised in that include the component of following weight/mass percentage composition:5-8% asparagus juice, 3- 5% pleurotus eryngii juice, 80-85% fresh milks, 4-6% sucrose, 3-4% composite ferments;The composite ferment is that mass ratio is 1: 1:1 plus Leah lactobacillus, streptococcus thermophilus and bifidobacterium longum.
2. stirred yoghurt according to claim 1, it is characterised in that the Yoghourt includes the component of following percentage composition: 6-8% asparagus juice, 3-4% pleurotus eryngii juices, 80-84% fresh milks, 4-6% sucrose, 3-4% composite ferments.
3. stirred yoghurt according to claim 2, it is characterised in that the mass ratio of the asparagus juice and pleurotus eryngii juice For 2:1.
4. stirred yoghurt according to claim 1, it is characterised in that the fresh milk is selected from fresh cow milk or fresh sheep breast.
5. a kind of preparation method of any stirred yoghurt described in claim 1-4, is comprised the steps of:
(1) fresh milk, asparagus juice and pleurotus eryngii juice are prepared;
(2) asparagus juice, sucrose are added in fresh milk, stirred, homogeneous feed liquid;
(3) compound after homogeneous in step (2) is sterilized into 10min at 95 DEG C, and is cooled fast to 40-45 DEG C, access is multiple Close ferment-fermented, when Yoghourt reaches curdled appearance, and determine to terminate when acidity be 65-70 ° of T and ferment, obtain yogurt;
(4) yogurt after fermentation is cooled to 5-7 DEG C, adds pleurotus eryngii juice, stir;
(5) yogurt obtained in step (4) is placed into 12-24h in 4-6 DEG C, obtains stirred yoghurt.
6. the preparation method of stirred yoghurt according to claim 5, it is characterised in that in step (1), the fresh milk exists Under the conditions of 4-10 DEG C, homogenization pressure 25-30MPa, 10-15min is handled, then the sterilization processing 20-30s at 85-90 DEG C.
7. the preparation method of stirred yoghurt according to claim 5, it is characterised in that in step (1), the asparagus After asparagus is to be dried to, crushed, sieved juice, it is in 0.7-1% cellulase solutions, at 50-60 DEG C to add mass percent Under the conditions of digest 2-4h, pH value of solution 6-6.5, asparagus is 1 with cellulase solution solid-liquid ratio:10-15g/ml.
8. the preparation method of stirred yoghurt according to claim 5, it is characterised in that in step (1), the pleurotus eryngii After pleurotus eryngii juice is to be dried to, crushed, sieve juice, add water, amount of water is is 5-10 with pleurotus eryngii mass ratio:1, homogeneous, obtain apricot Abalone mushroom juice.
9. the preparation method of stirred yoghurt according to claim 5, it is characterised in that in step (2), the homogeneous is Using double-stage homogenization technique, feed liquid is preheated to 65-75 DEG C, homogenization 10-15min under 25-30MPa, then in 15- Homogeneous 5-10min under 20MPa homogenization pressures.
10. the preparation method of stirred yoghurt according to claim 5, it is characterised in that in step (3), the fermentation is The compound for accessing composite ferment is placed in 40-45 DEG C of ferment at constant temperature 6-7h.
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* Cited by examiner, † Cited by third party
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CN108094544A (en) * 2017-12-29 2018-06-01 佛山市珂莎巴科技有限公司 A kind of Yoghourt and preparation method thereof
CN108220206A (en) * 2018-03-12 2018-06-29 江南大学 A kind of bifidobacterium longum and its application
CN108244254A (en) * 2018-02-08 2018-07-06 河南科技学院 A kind of apple pomace polysaccharide Yoghourt and preparation method thereof
CN109329420A (en) * 2018-09-25 2019-02-15 江苏农林职业技术学院 A kind of brown whisk yoghout and preparation method thereof containing hickory chick
CN110367333A (en) * 2019-09-01 2019-10-25 青岛农业大学 A kind of dense milk fragrance stirred type acidified milk of health-care natural and its production method
CN111248271A (en) * 2018-11-30 2020-06-09 内蒙古伊利实业集团股份有限公司 Preparation of high-protein pasteurization stirring type yogurt

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CN110367333A (en) * 2019-09-01 2019-10-25 青岛农业大学 A kind of dense milk fragrance stirred type acidified milk of health-care natural and its production method

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