CN105918457A - Preparation method of high-stability non-viable bacterium type brown lactic acid bacteria beverage - Google Patents

Preparation method of high-stability non-viable bacterium type brown lactic acid bacteria beverage Download PDF

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Publication number
CN105918457A
CN105918457A CN201610259114.7A CN201610259114A CN105918457A CN 105918457 A CN105918457 A CN 105918457A CN 201610259114 A CN201610259114 A CN 201610259114A CN 105918457 A CN105918457 A CN 105918457A
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China
Prior art keywords
lactic acid
acid bacteria
bacteria beverage
beverage
type brown
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CN201610259114.7A
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Chinese (zh)
Inventor
崔树勇
朱宏
张慧云
侯金鑫
王璐
刘丽
卢晓莉
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Shijiazhuang Junlebao Dairy Co Ltd
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Shijiazhuang Junlebao Dairy Co Ltd
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Priority to CN201610259114.7A priority Critical patent/CN105918457A/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
    • A23C9/1203Addition of, or treatment with, enzymes or microorganisms other than lactobacteriaceae
    • A23C9/1209Proteolytic or milk coagulating enzymes, e.g. trypsine
    • 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
    • A23C9/123Fermented milk preparations; Treatment using microorganisms or enzymes using only microorganisms of the genus lactobacteriaceae; Yoghurt
    • A23C9/1234Fermented milk preparations; Treatment using microorganisms or enzymes using only microorganisms of the genus lactobacteriaceae; Yoghurt characterised by using a Lactobacillus sp. other than Lactobacillus Bulgaricus, including Bificlobacterium sp.
    • 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
    • A23V2400/113Acidophilus
    • 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
    • A23V2400/125Casei
    • 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
    • A23V2400/147Helveticus
    • 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
    • A23V2400/165Paracasei
    • 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
    • A23V2400/169Plantarum
    • 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
    • A23V2400/175Rhamnosus

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  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Non-Alcoholic Beverages (AREA)

Abstract

The invention provides a preparation method of a high-stability non-viable bacterium type brown lactic acid bacteria beverage. Glucose and proteases are added to skimmed milk powder, a Maillard reaction is performed, and then processes of performing fermentation, regulating auxiliary materials and the like are performed, so that the lactic acid bacteria beverage is finally prepared. The average particle diameter of particulate matters in the prepared lactic acid bacteria beverage is controlled within the range of 700-900nm, the problems that the non-viable bacterium type brown lactic acid bacteria beverage is easy to bleed, and generates precipitation in the guarantee period are solved, the addition quantity of a stabilizing agent is reduced, and the production cost is reduced. The preparation method disclosed by the invention is suitable for preparing the high-stability non-viable bacterium type brown lactic acid bacteria beverage.

Description

The preparation method of high stability non-viable type brown lactic acid bacteria beverage
Technical field
The invention belongs to field of food, relate to a kind of brown lactic acid bacteria beverage, specifically a kind of high stability non-live The preparation method of bacterial type brown lactic acid bacteria beverage.
Background technology
Along with improving constantly of living standards of the people, people not only rest on this one side of quenching one's thirst to the demand of beverage, right Nutrition, healthy pursuit are the strongest.Light brown lactic acid bacteria beverage be exactly to cater to consumer demand and research and develop one Class new product.Owing to processing through brown stain, finished product is light brown, has salubrious mouthfeel, and raw material uses skimmed milk, fat content Close to zero, being possible not only to avoid the absorption of fat, it is also possible to promote intestinal peristalsis promoting, facilitating digestion absorbs, and prevents constipation, deep by wide The favor of big consumer.
Lactobacillus beverage is formed through specific processes by milk or milk powder, water, sugar and other multiple additives.Wherein Existing protein microbeads forms big suspension, has again adipogenic emulsion, also has by sugared the most molten with what additive was formed Liquid, therefore lactobacillus beverage is the heterogeneous system of a kind of instability.In Lac Bovis seu Bubali, casein accounts for 80% left side of total protein content The right side, it is presented in casein non-phosphopeptides.Casein non-phosphopeptides can in Lac Bovis seu Bubali stable existence, be due to casein glue intergranular The electrostatic repulsion existed and sterically hindered effect, the latter is deciding factor.Casein non-phosphopeptides in Lac Bovis seu Bubali with negative Net charge, in neutral conditions, has electrostatic repulsion between micelle, casein can be promoted stable.Casein non-phosphopeptides network Surface is κ-CN layer, and the C-end with hydrophilic interaction stretches to water layer, makes micelle surface form " hair " structure, is i.e. polymerized Body brush, in applicable solvent, the stability action of micelle can increase, otherwise, poly brush there will be collapse phenomenon, makes breast body System's cohesion.
In Lac Bovis seu Bubali, caseic isoelectric point, IP is pH4.6, and at a low ph, the ξ of casein non-phosphopeptides-current potential reduces, part α, Beta-casein dissolution, colloidal calcium phosphate dissolves, and when its concentration is reduced to 30%, the integrity of micelle is destroyed, and micelle is carried Net charge reduce, the electrostatic repulsion of casein glue intergranular reduces;Meanwhile, be positioned at casein non-phosphopeptides surface has space " hair " structure of steric hindrance collapses, and cohesion occurs in casein non-phosphopeptides.
The pH of lactobacillus beverage is between 3.6-4.4, and less than casein isoelectric point, IP, now, casein is in highly unstable Determining state, if not taking effective ways, casein non-phosphopeptides certainly will be assembled, and causes layering, precipitation.
From Stokes law, lactoprotein particle radii are the least, and lactobacillus beverage viscosity is the biggest, and lactic acid beverage precipitates Speed is the slowest, and beverage is the longest for stabilization time.Visible, under conditions of soluble solid content is constant, in certain limit, brown The stability of lactic acid bacteria beverage is relevant to molecular size range and pH value of solution, and molecular weight is the biggest, and pH value of solution is the lowest, and system is the most unstable Fixed, it is necessary to add substantial amounts of stabilizer.Along with the increase of stabilizer addition, the viscosity of system increases therewith, when system When viscosity increases, stability also can improve accordingly, but viscosity increases too high meeting and causes mouthfeel the thickest, and sense of eking out a living ultimately results in sense Official's score reduces;It addition, use stabilizer to not only increase cost in a large number, also it is unfavorable for the health of consumer simultaneously.
Non-viable type brown lactic acid bacteria beverage is due to normal temperature storage, and the shelf-life is generally 4-6 individual month, to stability requirement relatively High.Research in terms of lactobacillus beverage stability at present focuses primarily upon stabilizer formula and technique, and to the fewest The discussion that ground use stabilizer improves system stability is less.
Summary of the invention
The technical problem to be solved in the present invention, is to provide the preparation of a kind of high stability non-viable type brown lactic acid bacteria beverage Method, adds protease, carries out Enzymic reaction in skimmed milk powder hydro-combination process, being subsequently adding glucose, to carry out Mei Lade anti- Should, finally prepare lactic acid bacteria beverage through processes such as everfermentation, adjuvant regulations after reaction, the average particle of particulate matter in lactic acid bacteria beverage Footpath controls in the range of 700-900nm, stable to solve non-viable type brown lactic acid bacteria beverage bleed, precipitation etc. within the shelf-life Sex chromosome mosaicism, reduces the interpolation of stabilizer, reduces production cost.
For solving above-mentioned technical problem, the technical solution used in the present invention is:
A kind of preparation method of high stability non-viable type brown lactic acid bacteria beverage, it carries out according to steps order:
(1) skimmed milk powder of 2.8~4.2 weight portions is dissolved in 35~55 DEG C, 19.6~29.4 weight portion pure water in, And it is added thereto to 0.05~0.1 weight portion protease, at 35~55 DEG C, stand 0.2~1h, obtain A;
(2) A adds the glucose of 1.5~3.0 weight portions, at 95~98 DEG C, is incubated 1.5~3h, obtains B;
(3) by 1 × 10 after B cooling6~9 × 106The inoculum concentration inoculating starter of cfu/mL, 36~39 DEG C of fermentations are to acidity 140 ~200 ° of T, obtain C after cooling;
(4) 20~50 weight portion pure water are heated to 35~50 DEG C, be added thereto to 3.5~5.5 weight portion white sugars and 2.0~5.0 weight portion high fructose syrups, after fully dissolving, solution is warming up to 75~80 DEG C, by 0.05~0.2 weight portion stabilizer, 0.02~0.04 weight portion sweeting agent adds solution, and after fully dissolving, solution is cooled to less than 25 DEG C, obtains D;
(5) acid adjustment after being mixed by D with C, perfumery, stir, constant volume, homogenizing, and sterilize to obtain high stability non-viable type brown lactic acid Bacterium beverage.
Restriction as the present invention:
The most described protease is trypsin, papain, ficin, bromelain and microbial protease One or both;
2. in high stability non-viable type brown lactic acid bacteria beverage, protein content is 0.7%~1.2%, and the non-viable type of high stability is brown The acidity of color lactic acid bacteria beverage is 50~70 ° of T;
In the most described skimmed milk powder, protein content is 28%~35%, and fat content is less than 0.8%;
The most described leaven is direct putting type granule fermented type lactic acid bacteria, and described lactic acid bacteria is lactobacillus casei (Lactobacillus casie), Lactobacillus paracasei (Lactobacillus paracasie), Lactobacillus plantarum (Lactobacillus plantarum), bacillus acidophilus (Lactobacillus acidophilus), lactobacillus helveticus One or many in (Lactobacillus helveticus), lactobacillus rhamnosus (Lactobacillus rhamnosus) Kind;
The most described stabilizer is the one in pectin, propylene glycol alginate, sodium carboxymethyl cellulose and soluble soybean polysaccharide Or two kinds;
The most described sweeting agent is one or both in aspartame, acesulfame potassium, cyclamate, stevioside and sucralose.
The present invention also has one to limit, and described sterilization temperature is 105 DEG C~121 DEG C, and sterilizing time is 10~20s.
Owing to have employed above-mentioned technical scheme, compared with prior art, acquired technological progress is the present invention:
The present invention passes through biological enzymolysis technology, adds protease so that the partial proteolysis in Lac Bovis seu Bubali, compared to existing For beverage, not only protein molecular weight diminishes, and is conducive to digesting and assimilating, and in beverage, the mean diameter of particulate matter is at 700- In the range of 900nm, the particulate matter of this range scale makes beverage system have higher stability, not only reduces in system steady Determine the addition of agent, avoid the generation of precipitation and bleed phenomenon simultaneously, reduce production cost, it is ensured that the product shelf phase.
The present invention is applicable to prepare high stability non-viable type brown lactic acid bacteria beverage.
The present invention is described in further detail below in conjunction with specific embodiment.
Accompanying drawing explanation
Fig. 1 be particulate matter average particle size distribution figure in different non-viable type brown lactic acid bacteria beverage in embodiment 7 (wherein: The beverage that 2a-embodiment 1 provides, the beverage that 2b-embodiment 2 provides, the beverage that 2c-embodiment 3 provides, 2d-embodiment 4 provides Beverage, 2e-embodiment 5 provide beverage, 2f-Q).
Detailed description of the invention
Test method used in following embodiment if no special instructions, is conventional method.
Material used in following embodiment, component etc., if no special instructions, all can obtain from commercial channel.
The preparation method of 1 one kinds of high stability non-viable type brown lactic acid bacteria beverage of embodiment
The present embodiment is the preparation method of a kind of high stability non-viable type brown lactic acid bacteria beverage, and it is suitable according to the steps Sequence is carried out:
(1) by molten for 2.8kg skimmed milk powder (in skimmed milk powder, protein content is 28%~35%, and fat content is less than 0.8%) Solution is in 19.6kg, 40 DEG C of pure water, after skimmed milk powder dissolves, adds 50g microbial protease to solution, quiet at 55 DEG C Set to 0 .2h, obtain A1;
(2) A1 adds the glucose of 1.5kg, after glucose dissolves, is incubated 3h, Maillard reaction occurs at 97 DEG C, B1;
(3) by 1 × 10 after B1 cooling6The inoculum concentration inoculating starter of cfu/mL, leaven is lactobacillus casei (Lactobacillus casie), 39 DEG C of fermentations, to 170 ° of T of acidity, obtain C1 after cooling;
(4) 20kg pure water being heated to 40 DEG C, be dissolved in wherein by 3.5kg white sugar and 2.0kg high fructose syrup, solution heats up After 80 DEG C, 150kg pectin, 20g acesulfame potassium are added in solution, after fully dissolving, is cooled to 25 DEG C or less, obtains D1;
(5), after D1 with C1 being mixed, utilize existing technological means acid adjustment, perfumery, stir, constant volume, homogenizing, after homogenizing, Sterilize at 121 DEG C 15s, obtains high stability non-viable type brown lactic acid bacteria beverage.In this beverage protein content be 0.7%~ 1.2%, the acidity of beverage is 58 ° of T.
The dispensing of the present embodiment is added protease so that the partial proteolysis in skimmed milk powder, compared to existing Beverage for, not only protein molecular weight diminishes, and is conducive to digesting and assimilating, and the protein of small-molecular-weight ensure that stable system Property, decrease the addition of stabilizer in system, decrease the generation of precipitation and bleed phenomenon, it is ensured that the product shelf phase.
The preparation method of embodiment 2-5 high stability non-viable type brown lactic acid bacteria beverage
Embodiment 2-5 is respectively the preparation method of a kind of high stability non-viable type brown lactic acid bacteria beverage, their preparation step The most similar to Example 1, the difference is that only: technical parameter relevant in preparation process is different, is specifically shown in Table 1.
Technical parameter table in the preparation process of table 1 high stability non-viable type brown lactic acid bacteria beverage
Two kinds of mixed bacterias in embodiment 4 are respectively bacillus acidophilus and lactobacillus helveticus, and the inoculative proportion of the two is 3:1; In embodiment 5, three kinds of mixed bacterias are respectively Lactobacillus plantarum, Lactobacillus paracasei and lactobacillus rhamnosus, the inoculation ratio of three Example is 3:1:2.
Above-described embodiment is when preparing lactic acid bacteria beverage, owing to adding protease in dispensing so that the portion in skimmed milk powder Dividing proteolysis, for existing beverage, not only protein molecular weight diminishes, and is conducive to digesting and assimilating, little molecule The protein of amount adds system stability, decreases the addition of stabilizer in system, decreases bleed and deposited phenomenon Produce, it is ensured that the product shelf phase.
The preparation method of embodiment 6-10 high stability non-viable type brown lactic acid bacteria beverage
Embodiment 6-10 is respectively the preparation method of a kind of high stability non-viable type brown lactic acid bacteria beverage, preparation process and reality Execute example 1 similar, the difference is that only: the kind of protease, stabilizer and sweeting agent used in preparation process is different, specifically As follows:
Protease used in embodiment 6 is trypsin and papain is that 1:1 compounds according to weight ratio;Stabilizer is sea Propylene glycol alginate and sodium carboxymethyl cellulose are that 2:1 compounds according to weight ratio;Sweeting agent be cyclamate and stevioside according to Weight ratio 1:1 compounds.
Protease used by embodiment 7 be ficin, bromelain according to weight ratio be 1:2 compound;Stable Agent be pectin and propylene glycol alginate be that 2:3 compounds according to weight ratio;Sweeting agent is that acesulfame potassium and cyclamate are according to weight ratio 1:1 compounds.
Protease used by embodiment 8 be bromelain and microbial protease be that 1:3 compounds according to weight ratio;Stable Agent be sodium carboxymethyl cellulose and soluble soybean polysaccharide be that 4:1 compounds according to weight ratio;Sweeting agent is aspartame and An Sai Honey compounds according to weight ratio 1:1.
Protease used by embodiment 9 be papain and microbial protease be that 4:1 compounds according to weight ratio;Stable Agent be propylene glycol alginate and soluble soybean polysaccharide be that 5:1 compounds according to weight ratio;Sweeting agent is aspartame and trichlorine Sucrose compounds according to weight ratio 10:1.
Protease used by embodiment 10 be bromelain and trypsin be that 1:1 compounds according to weight ratio;Stabilizer It is that 3:1 compounds for pectin and soluble soybean polysaccharide according to weight ratio;Sweeting agent is that acesulfame potassium and stevioside are according to weight ratio 2:1 compounds.
Prepared by embodiment 6-10 during lactic acid bacteria beverage, dispensing with the addition of compounding protease so that in skimmed milk powder Partial proteolysis, for existing beverage, not only protein molecular weight diminishes, and is conducive to digesting and assimilating, little The protein of molecular weight adds system stability, decreases the addition of stabilizer in system, decreases bleed and precipitation is existing The generation of elephant, it is ensured that product shelf phase.
Embodiment 11 non-viable type brown lactic acid bacteria beverage performance comparison test
(1), the present embodiment is prepared for a kind of non-viable type brown lactic acid bacteria beverage, the preparation method of this beverage and dispensing and reality Execute example 1 similar, difference only in: being not added with protease in this embodiment dispensing, prepared beverage finished product is designated as Q.
(2), the non-viable type brown lactic acid bacteria beverage that embodiment 1-10 provides is designated as Q1-Q10 respectively.The present embodiment pair Q, Q1-Q10 have carried out sense organ and performance measurement, specific as follows:
(1) sensory evaluation
Sample after organizing 120 people to place Q1-Q10, Q room temperature 60 days carries out subjective appreciation, subjective appreciation standard such as table 2, sense Official's evaluation result such as table 3.
The sensory evaluation scores standard of table 2 non-viable type brown lactic acid bacteria beverage
Table 3 non-viable type brown lactic acid bacteria beverage results of sensory evaluation
Above-mentioned results of sensory evaluation shows: Q1-Q10 outward appearance good mouthfeel, has the brown lactic acid bacteria local flavor of feature, sour-sweet suitable In, structural state is good, clean taste, without substantially layering, deposited phenomenon;And the Analyses Methods for Sensory Evaluation Results of Q is lower than the present invention.
(2) stability observing analysis
Q1-Q10 and Q being put in room temperature and carries out stability observing, once, observed result is as shown in table 4 for every 30 days observed and recordeds.
Table 4 stability observing log
Q1-Q10 places 4 months nothings and is substantially layered bleed, trace bleed occurs, but do not affect during latter stage shelf-life (5 months) Commercial value.And Q i.e. occurred bleed and deposited phenomenon after 90 days, affect shelf life.
(3) centrifugation rate analysis measures
Q1-Q10 and Q is centrifuged rate of deposition determination experiment (rotating speed: 4000r/min, time: 10min), result such as table respectively Shown in 5.
Table 5 sample centrifugation rate measurement result
From above-mentioned experiment, comparing Q, Q1-Q10 centrifugation rate relatively low, sample stability is higher.
The mensuration of the particle diameter of material in embodiment 12 non-viable type brown lactic acid bacteria beverage
In tradition viable type brown lactic acid bacteria beverage, protein is macromolecular particle thing, and particle diameter is relatively big, is susceptible to precipitation, The stability easily affecting product and the mouthfeel drunk;And after protein is all broken down into little molecule particles thing, system Though stability can increase, however it is necessary that the substantial amounts of protease of consuming, also can extend manufacture cycle simultaneously, and the mouthfeel drunk is also Can change, in the case of the technical scheme provided in the present invention does not affect finished product beverage property indices, compared to Traditional preparation method, technical scheme provided by the present invention not only reduces the addition of stabilizer (according to dispensing in the application In give component proportioning, traditional stabilizer addition is generally 0.3-0.5 weight portion), also add stablizing of system simultaneously Property, this mainly due to the size controlling in beverage system in certain scope time, make the property indices of beverage reach Optimum.
Q sample in order to more preferably contrast, provided in the beverage Q1-Q5 that embodiment 1-5 is provided and embodiment 11 Product carry out particle size determination respectively, parallel assay 2 times respectively of each sample, and particle diameter collection of illustrative plates is as it is shown in figure 1, particle size data such as table 6 institute Show.
Table 6 mean diameter data
Result shows, in the range of in embodiment 1-5, the particle diameter of made beverage is distributed in 700-900nm, the particle diameter of Q is more than Q1-Q5 Particle diameter.
In embodiment 13 non-viable type brown lactic acid bacteria beverage preparation process, protease addition probes into
Dispensing is added protease so that the partial proteolysis in skimmed milk powder, but protease add very few or Person the most all can affect quality and the mouthfeel of final beverage.The present embodiment has carried out Experimental Research to the addition of protease, The preparation process of beverage is same as in Example 1, the difference is that only: the addition of protease is different, and specific experiment result is such as Under.Wherein, 0 is entirely without bitterness, and 1 is the slightest bitterness, and 2 is slight bitterness, and 3 is medium bitterness, and 4 is strong bitterness, and 5 are Very strong bitterness.
Table 7 protease addition and the quality evaluation result table of beverage
As seen from the above table, in the preparation process of beverage, when protease addition 0.05~0.1 weight portion, system stability with Mouthfeel is normal.When protease adds less, there is bleed or precipitation in beverage, and when protease adds more, hardship occurs in beverage Taste, affects mouthfeel.Therefore, the content of protease needs to control in the range of suitably.
Probing into of embodiment 14 enzymatic hydrolysis condition optimization
The distribution of protease hydrolysis molecular weight of product depends entirely on the degree of hydrolysis of albumen, and degree of hydrolysis is warm with hydrolysis time and hydrolysis again Spend closely related.
By hydrolysis temperature, time, the enzyme concentration impact on protein degree, do the orthogonal experiment of three factor four levels (being shown in Table), is the first deliberated index with bitterness value, true with stability observing record (observing 120 days samples) auxiliary deliberated index Surely bitterness can be effectively suppressed to produce, again can the enzymatic hydrolysis condition of effective enhanced stability.Wherein, 0 is entirely without bitterness, and 1 is non- The slightest bitterness, 2 is slight bitterness, and 3 is medium bitterness, and 4 is strong bitterness, and 5 is very strong bitterness.Result is as shown in table 9.
Table 8 three factor five horizontal quadrature table
Table 9 orthogonal experiments table
Upper table understands, and hydrolysis temperature is when 30 DEG C, and bleed and deposited phenomenon all occurs in system;When enzymolysis time is 0.1h, stable Property is poor;When enzymolysis time is 1.2h, bitterness all occurs.Enzymolysis time extends appearance excessively hydrolysis, although shorten peptide chain length, Add dissolubility, but simultaneously, be originally imbedded in the hydrophobic amino acid within long peptide chain structure and expose in a large number and cause bitterness Generation, therefore protein can only be carried out restricted mild hydrolysis.Therefore, hydrolysis temperature and time should control at following model In enclosing: hydrolysis temperature 35~55 DEG C, enzymolysis time is 0.2~1h.
Embodiment 1-10, is only presently preferred embodiments of the present invention, is not other form made for the present invention Limiting, any those skilled in the art are changed or are modified as equivalent possibly also with above-mentioned technology contents as enlightening The Equivalent embodiments of change.In every case it is the technical spirit without departing from the claims in the present invention, to the letter done by above example Single amendment, equivalent variations and remodeling, still fall within the scope of the claims in the present invention protection.

Claims (8)

1. the preparation method of a high stability non-viable type brown lactic acid bacteria beverage, it is characterised in that it is according to the steps Order is carried out:
(1) skimmed milk powder of 2.8~4.2 weight portions is dissolved in 35~55 DEG C, 19.6~29.4 weight portion pure water in, And it is added thereto to 0.05~0.1 weight portion protease, at 35~55 DEG C, stand 0.2~1h, obtain A;
(2) A adds the glucose of 1.5~3.0 weight portions, at 95~98 DEG C, is incubated 1.5~3h, obtains B;
(3) by 1 × 10 after B cooling6~9 × 106The inoculum concentration inoculating starter of cfu/mL, 36~39 DEG C of fermentations are to acidity 140 ~200 ° of T, obtain C after cooling;
(4) 20~50 weight portion pure water are heated to 35~50 DEG C, be added thereto to 3.5~5.5 weight portion white sugars and 2.0~5.0 weight portion high fructose syrups, after fully dissolving, solution is warming up to 75~80 DEG C, by 0.05~0.2 weight portion stabilizer, 0.02~0.04 weight portion sweeting agent adds solution, and after fully dissolving, solution is cooled to less than 25 DEG C, obtains D;
(5) acid adjustment after being mixed by D with C, perfumery, stir, constant volume, homogenizing, and sterilize to obtain high stability non-viable type brown lactic acid Bacterium beverage.
The preparation method of high stability the most according to claim 1 non-viable type brown lactic acid bacteria beverage, it is characterised in that: Described protease is the one in trypsin, papain, ficin, bromelain and microbial protease Or two kinds.
The preparation method of high stability the most according to claim 1 non-viable type brown lactic acid bacteria beverage, it is characterised in that: In high stability non-viable type brown lactic acid bacteria beverage, protein content is 0.7%~1.2%, high stability non-viable type brown lactic acid The acidity of bacterium beverage is 50~70 ° of T.
The preparation method of high stability the most according to claim 1 non-viable type brown lactic acid bacteria beverage, it is characterised in that: In described skimmed milk powder, protein content is 28%~35%, and fat content is less than 0.8%.
The preparation method of high stability the most according to claim 1 non-viable type brown lactic acid bacteria beverage, it is characterised in that: Described leaven is lactobacillus casei, Lactobacillus paracasei, Lactobacillus plantarum, bacillus acidophilus, lactobacillus helveticus, rhamnose breast One or more in bacillus.
The preparation method of high stability the most according to claim 1 non-viable type brown lactic acid bacteria beverage, it is characterised in that: Described sterilization temperature is 105 DEG C~121 DEG C, and sterilizing time is 10~20s.
The preparation method of high stability the most according to claim 1 non-viable type brown lactic acid bacteria beverage, it is characterised in that: Described stabilizer is one or both in pectin, propylene glycol alginate, sodium carboxymethyl cellulose and soluble soybean polysaccharide.
8. according to the preparation side of the non-viable type brown lactic acid bacteria beverage of the high stability described in any one in claim 1-7 Method, it is characterised in that: described sweeting agent be the one in aspartame, acesulfame potassium, cyclamate, stevioside and sucralose or Two kinds.
CN201610259114.7A 2016-04-25 2016-04-25 Preparation method of high-stability non-viable bacterium type brown lactic acid bacteria beverage Pending CN105918457A (en)

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Application publication date: 20160907