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Method of preparation of liquid or dry concentrate or bifidobacteria ferment

IPC classes for russian patent Method of preparation of liquid or dry concentrate or bifidobacteria ferment (RU 2326940):
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Consortium of lactobacteria strains contains Lactobacillus acidophilus 57S ("ВКПМ В-5863"), Lactobacillus piantarum "П-75" ("ВКПМ В-3962"), Lactobacillus casei stilb ("ВКПМ В-5724"), which are taken in proportion of 2:0.5:0.5. The method includes preparation of milk nutrient medium, its sterilisation and cooling down to the temperature of fermentation, introduction of inoculation dose of lactobacteria strains consortium in the quantity of not more than 5.0 mass %. The product is fermented during time, which is sufficient for formation of clot and the ready product is cooled at the temperature of not more than +6°C. As milk nutrient medium non-fat milk is used, normalised in solid residual down to 13.5-15%, lactopeptone and lithium citrate with the following proportion of components, (mass %): lactopeptone - 3.5-4.5, lithium citrate - 0.15-0.25 and non-fat milk, normalised in solid residual down to 13.5-15% - the rest.

FIELD: technological processes; medicine.

SUBSTANCE: method of preparation of liquid or dry concentrate or Bifidobacteria ferment includes introduction of inoculation dose of Bifidobacteria culture Bifidobacterium bifidum 8-3 ("ВКПМ Ас- 1248"), Bifidobacterium longum "ЯЗ" ("ВКПМ Ас-1252"), Bifidobacterium adolescentis Bl ("ВКПМ Ас-1243") into nutrient medium. The medium contains, (mass %): lactopeptone 5.0-7.0; muriatic cysteine 0.001-0.005; autolysate or extract of bakery yeast 2.0-4.0; non-fat milk with content of non-fat milk solids of not more than 8.0% - the rest up to 100%. Biomass of bifidobacteria is grown at (37.0-38.0)±0.5°C until concentrate of bifidobacteria is obtained with at least 1011 CFU/ml. The product is cooled and packaged, or protective medium is introduced into it, and it is dried liophilically in sterile conditions.

EFFECT: provides for the possibility of preparation of stable uniform biomass of bifidobacteria for production of preparations with high bifidobacteria titre.

5 cl, 5 tbl, 4 ex

 

The technical field

The invention is a consortium of strains of bifidobacteria and the way to obtain on the basis of its liquid or dry concentrate or fermenting bifidobacteria, dry preparations of bifidobacteria and milk, nutritious diet products, bifidobacteria biologically active additives (BAA) and preparations of probiotics on the basis of the specified liquid concentrate of bifidobacteria and can be used in biotechnology, medical Microbiology and food industry.

The function of the normal microflora in the body are vital and very extensive: synthesizing, regulatory, desensibiliziruyuschee, detoxification, enzyme, protective and immunostimulirutuyu. Preparations and products containing bifidobacteria, are widely used for the prevention and treatment of dysbacteriosis and normalization of the intestinal microflora of people undergoing stress, antibiotic and chemotherapy.

Prior art

Abroad widely used drugs probiotics and health food products based consortia strains of Bifidobacterium species B. bifidum, B. longum, B. adolescentis, B. breve, B. infantis in different combinations (U.S. Patent No. 5843922, IPC 12N 1/20, AK 31/715, publ. 01.12.1998; Application U.S. No. 2002015990, IPC 12N 1/20, publ. 07.02.2002; U.S. patent No. 6335040, IPC AS 9/32, publ. 01.01.2002), and also on the basis of consortia strains of bifidobacteria and lactobacilli (Application U.S. No. 20020090416, IPC A23L 1/00, publ. 11.07.2002; U.S. patent No. 5866385, IPC 12N 1/21, AS 9/123, publ. 02.02.1999).

However, consortia strains of bifidobacteria and consortia strains of bifidobacteria and lactobacilli foreign firms-developers focused on creating mainly therapeutic and preventive drugs and SUPPLEMENTS in dry form (tablets, capsules). These consortia strains have significant shortcomings when used for cooking preparations and dairy products in liquid form: short term storage of these drugs and products, low organoleptic qualities that are irrelevant to drugs in the dry form.

Known consortia strains of bifido - and lactic acid bacteria used for the production of fermented and non-fermented products in liquid form (RF Patent No. 2180348, IPC 12N 1/20, publ. 2002; RF patent №2180914, IPC 12N 1/20, publ. 2002; RF patent №2180915, IPC 12N 1/20, publ. 2002).

The main disadvantage of dairy products manufactured on the basis of consortia strains of bifidobacteria and lactobacilli, is the lack of retention period (not longer than 1 month) due to the fact that lactic acid bacteria during storage of the product contribute to rapid acidification. The titer of bifidobacteria in zakislenna prod is regarding subsection dropping fast that reduces treatment-and-prophylactic properties of this product.

Known consortium of five strains of bifidobacteria (WO 98/44090, IPC 12N 1/20, publ. 08.10.1998 g), which is intended to prepare fermented, unfermented food and bacterial preparations. The consortium obtained by a combination of strains of bifidobacteria Century bifidum 791, B. longum, B379M, B. breve 79-119, B. infantis 73-15, B. adolescentis G with close cultural, physiological and biochemical properties, and also has skvashivaya activity. The consortium strains of five species of bifidobacteria actively propagated in nutrient media with the accumulation of biomass production in a short period of cultivation. Skachivat milk with the formation of the clot with good taste and organoleptic properties, has a specific activity. The consortium strains recommended composition of starter cultures for the preparation of fermented milk nutritious diet products, non-fermented food and bacterial preparations. The finished product contains 1 ml of 109live bacteria. 1 dose of not less than 107living cells of bifidobacteria.

However, this consortium of strains of bifidobacteria are insufficiently resistant to the damaging factors of environments cultivation and aggressive environments gastrointestinal tract (acids, proteolytic which can be the storage and moving of bifidobacteria consortium in the gastrointestinal tract, consequently, the lack of viability and colonizing properties in case of the use of products on the basis of the consortium.

A known method of obtaining a concentrate of bifidobacteria, including deep growing culture of bacteria in a nutrient medium, containing (wt.%): basis up to 100%; pancreatic hydrolysate of casein 1,5-2,0; Baker's yeast autolysate 0.3 to 0.5; glucose 0,25-0,95; potassium phosphate one-deputizing 0,1-0,2; ammonium citrate trehzameshchenny of 0.2-0.3; sodium chloride 0.3 to 0.4; magnesium sulfate as 0.1 to 0.2 and cystine of 0.025-0.03 in. Culture of bifidobacteria grown in stage 2 duration 19-24 hours to obtain a concentrate of biomass with subsequent dehydration in the presence of a protective environment and drying of the product (RF patent No. 2005119, IPC 12N 1/20, publ. 30.12.93). Based on the concentrate of bifidobacteria can be prepared, bifidobacteria dairy products.

However, this method is difficult to implement, as it can be performed only under conditions of submerged cultivation in a fermenter in a stage 2 up to 24 hours with continuous mixing environment, instrument monitoring and periodic adjustments of some parameters of the culture medium. In addition, the concentrate of bifidobacteria obtained by this method is insufficient titer and maybe XP is Nitsa a long time only in a dry form. The liquid form of this product quickly loses its activity during storage.

The closest analogue (prototype) of the proposed consortium is a consortium of three strains of bifidobacteria (RF Application No. 2003107387, IPC 12N 1/20, publ. 20.12.2004,). The consortium strains of bacteria: Bifidobacterium bifidum No. BEG (collection No.-686 Institute of collections of cultures of microorganisms SRC VB "Vector", Koltsovo), Bifidobacterium bifidum 8-3 (deposited in Vniigenetika in PMBC under No 5799), Bifidobacterium longum TWO-13 (deposited in Vniigenetika in PMBC under No 5894), used to obtain a liquid concentrate of bifidobacteria fermented, unfermented therapeutic products, biologically active additives and bacterial preparations. The consortium is resistant to the damaging factors of environments cultivation and aggressive environments gastrointestinal tract of man, provides recycling of a wide range of amino acids, i.e. has a high vitality and colonizing properties that provide products and products with a longer shelf life while maintaining high treatment-and-prophylactic properties.

The closest way of obtaining a concentrate of a starter culture of bacteria, including the consortium of these bacteria is a process involving the introduction of sowing dose cult of the s bacteria Bifidobacterium bifidum in a nutrient medium, containing the nutrient medium with the addition of cysteine hydrochloric acid and Baker's yeast autolysate and the growing culture of Bifidobacterium bifidum in (37-38)±0,5°to obtain a concentrate of bifidobacteria, cooling and packing of the finished product (RF Patent No. 2104706, IPC AC 35/74, publ. 20.02.1998). The culture medium was further added D - (-)-lactose, ascorbic acid, pancreatic hydrolysate of milk, as the basis of the nutrient medium using sterile milk solids milk (SOMO) 11-14% in the following ratio of components of the nutrient medium, wt.%:

Pancreatic hydrolysate of milk 7-9
D(-)-lactose 0,05-0,15
Cystine hydrochloric acid 0,001-0,007
Ascorbic acid 0,003-0,009
The Baker's yeast autolysate 0,5-2,0
Sterile milk (base) else up to 100%

And sowing a dose of culture of the bacteria Bifidobacterium bifidum contribute in the amount of 5-7% of the volume of the nutrient medium with a title (5·107-5·108) CFU/ml, and the culturing is carried out for a time sufficient for obtaining a concentrate of bifidobacteria with the biological titer of not less than (0,8-1,0) 1010Coems and acidity 100-120° So This consortium is obtained using the growth medium, enriched in protein (12% dry milk residue with an excess of protein).

However, along with the positive qualities of such a consortium providing long term storage it in liquid form, good organoleptic) there are negative properties. Low resistance to antibiotics. When production on the basis of this consortium of dry concentrate of bifidobacteria and dry bifidopreparatom observed instability and heterogeneity of biomass of bacteria in the process of drying (due to the high protein content) and, consequently, is not high enough concentration of bifidobacteria in the dry preparation. In addition, the production environment for the cultivation of this consortium requires the use of high quality skimmed milk powder.

Disclosure of inventions

The technical result of the invention is the higher stability of the proposed consortium strains of bacteria to antibiotics with species composition of the strains, expanding its probiotic treatment-and-prophylactic properties (colonization and antagonistic) and providing the ability to produce a stable homogeneous biomass of bifidobacteria in a relatively "poor" environment cultivation to obtain the which drugs with a high titer of bifidobacteria.

This technical result is achieved by the fact that the consortium strains of bacteria: Bifidobacterium bifidum 8-3 (deposited in Vniigenetika in PMBC no AC 1248), Bifidobacterium longum A (deposited in Vniigenetika in ACIM # AC-1252), Bifidobacterium adolescentis B1 (deposited in Vniigenetika in ACIM # AC-1243), used to obtain liquid or dry concentrate of a starter culture of bacteria.

This technical result is also achieved by the fact that in the method of producing a liquid or dry concentrate of a starter culture of bacteria, including the introduction of sowing dose of culture bacteria in a nutrient medium containing a nutrient medium with the addition of cysteine hydrochloric acid, Baker's yeast autolysate, and the cultivation of biomass of bifidobacteria in (37-38)±0,5°to obtain a concentrate of bifidobacteria, cooling and packing of finished liquid product or the introduction of a liquid product protective environment and lyophilic drying under sterile conditions, according to the invention, the culture medium was further added hydrolyzed skim milk milk bactopeptone, as basic nutritional environment of the use of milk products milk with low dry matter content of milk (SNF) - not more than 8,0% in the following ratio of components of the nutrient medium, wt.%:

Hydro is ISAT object of milk (lactate) 5,0-7,0
Cysteine hydrochloric acid 0,001-0,005
The Baker's yeast autolysate 2,0-4,0
Milk products milk (base) with SOMO no more than 8% the rest is up to 100%

As sowing dose of bifidobacteria using a consortium of strains of Bifidobacterium according to claim 1 of the present invention formula: Bifidobacterium bifidum 8-3, Bifidobacterium longum A, Bifidobacterium adolescentis B1.

In sowing the dose of strains of Bifidobacterium bifidum 8-3, Bifidobacterium longum A, Bifidobacterium adolescentis B1 are in the ratio 3:1:1.

Sowing dose of bifidobacteria contribute in the amount of 5.0-7.0% of the volume of the nutrient medium with the title of bifidobacteria not less than 109CFU/ml, culturing is carried out for a time sufficient for obtaining a concentrate of bifidobacteria with the biological titer of not less than (0,8-1,0) 1011CFU/ml and acidity 100-120°T, and protective environment contribute in the finished liquid product in an amount of not less than 40% by weight of the latter.

Protective environment for drying biomass concentrate or yeast-based consortium of bifidobacteria contains sodium chloride, peptone, sucrose, gelatin, ascorbic acid in the following components (wt.%):

Sodium chloride 0,4-0,5
Peptone 0,7-1,0
6,0-7,0
Gelatin 0,4-0,5
Ascorbic acid 0,07-0,1
Milk solids-non-12,0% the rest is up to 100%

Before drying after making a protective environment correction of acidity biomass of bifidobacteria solutions of NaOH to pH 6,5-7,0.

After drying the product he has the title of bifidobacteria not less than 1010CFU/ml

Information on the Deposit of strains consortium of bifidobacteria:

Strain Bifidobacterium bifidum 8-3. Obtained from the collection of PMBC. Isolated from the faeces of man and electrovan in Ukrmiasomolproma. Deposited in Vniigenetika in the collection ACIM # AC-1248. Designed for the production of fermented dairy products. Copy of ID attached.

Strain Bifidobacterium longum A (deposited in Vniigenetika in the collection ACIM # AC-1252). Designed for the production of fermented dairy products. Copy of ID attached.

Strain Bifidobacterium adolescentis B1 (deposited in Vniigenetika in the collection ACIM # AC-1243). Designed for the production of fermented dairy products. Copy of certificate attached

Control cultures of bifidobacteria is conducted according to TORMENT 4.2.577-96 Methods of microbiological control of products for children, therapeutic foods and their components.

Cultural-m is vologodskii signs of the consortium: the Cells are rod-shaped, V-shaped projection on one or two ends are extremely rare, immobile, in a form clusters of gram-positive.

In hydrolysate-milk agar medium to form colonies in the form of a clear studs with a length of 5-10 mm, a thickness of 1-2 mm In liquid nutrient media is growing throughout the height of the volume, except for the zone of aerobiosis. Pigment does not form.

Physiological and biochemical characteristics: obligate gone anaerobic, the optimum temperature of 37.5°C, pH of 7.2 to 7.4. Ferments lactose with the formation of acetic and lactic acids, sakissa environment growing up to pH 4.0. The arabinose, xylose, mannose, cellobiose, inulin, mannitol, sorbitol, salicin not fermented.

Strains consortium fermented milk without growth factors with education for 16-18 h stable clot with acidity - 140-160°T, which practically does not increase even during the 5-month storage period. Gas-forming ability, catalanopolonesa ability, liquefaction of gelatin is missing.

Acid-forming activity by 24 h 100° Turner, 72 h 150-200° Turner (hepatic environment), hydrolysate-dairy environment - 160° Turner, 250° Turner, respectively.

The maximum titer of bacteria consortium in fat-free natural milk (8% SOM) with growth factors: hydrolyzed milk and yeast extract across the 24 h growth is (2-5)·1011through 90-120 days of storage in this environment - (2-5)×1010CFU/ml Thus, the claimed consortium has a longer shelf life compared with the consortium prototype 1.5 times.

Antagonistic properties of the consortium

The consortium is active against Shigella sonnei, Flexner, enteropathogenic enteric rods, staphylococci.

Antagonistic activity of the consortium (table 1) strains of bifidobacteria was studied by the method of in vitro when the joint cultivation of pathogenic test strains in the zone of growth inhibition of the test microbes method barcodes

Table 1
These inhibit the growth of pathogenic and conditionally pathogenic microorganisms
Zones of growth inhibition of the test cultures (mm)
Sh. sonne Salmonella typhim Escherichia colli Candida albicans
The proposed consortium 21,0-23,0 19,0-20,0 22,0-24,0 19,0-20,0
Consortium-prototype 10-11 9-10 10-11 9-10

Research consortium on antibiotic resistance

Claimed of the sustainability consortium is to kanamycin, the monomitsina. This allows you to easily select from a mixture of bifidobacteria them with lactobacilli. Sensitive to the antibiotics penicillin, kefzol, gentamycin. The ability of the proposed consortium of strains of bifidobacteria to build dense microbial mass in a relatively poor nutrient medium, skachivat milk in a short time, to show specific activity makes possible its use in the preparation of fermented, unfermented food and dry bacterial preparations (see table 2).

Table 2
Comparative sensitivity of the consortium to antibiotics
Antibiotics MIC-MAC (µg/mg) The proposed consortium strains Consortium-prototype
Ampicillin 4-16 0.5 0.5
Carbenicillin 128 0,5 0.5
Oxacillin 2 1 1
Kefzol 4-32 4 4
Streptomycin 4-64 8 8
Kanamycin 4-64 256 105
Monomitsin 4-64 256 120
Tantalizin 4-16 16 16
Chloramphenicol 8-32 32 32
Tetracycline 2-16 1 1
Notes:
MIC - minimum inhibitory concentration
MAC - maximum allowable concentration in the blood

Thus, the consortium of strains less sensitive to the antibiotics kanamycin and monomitsin (than, for example, known consortium-the prototype strains of bifidobacteria) and products based on it can be used simultaneously with these antibiotics in the treatment of them, thus preventing the development of dysbiosis from antibiotic therapy.

Example 1. The use of a consortium of strains of bifidobacteria to prepare a liquid concentrate of bifidobacteria (ICB).

1st passage

Liquid cultures of strains: B. bifidum 8-3, B. longum A and B. adolescentis B1 in an amount of 1 ml make 2 tubes with 9 ml in the hepatic environment cultivation (for each strain separately). Increasing strains in test tubes 15-18 h at a 37.5 8° C.

2nd passage

Grown culture of each strain separately in the amount of 5-10% contribute in 0.5 l of growth of dairy production environment cultivation and cultivate 16-18 h at 37,5-38° - to obtain lab starter cultures for each strain.

Then the biomass of the cultures of each of the strains are mixed in the ratio (3:1:1, respectively): 6 pieces biomass of bifidobacteria B. bifldum 8-3, 2 portion of the biomass of B. Longum A and 2 parts of the biomass of B. adolescentis B1.

3rd passage.

Received mixed biomass in the amount of 5-10% contribute in dairy production environment, in a volume of 10 liters and cultivate exceptions in glass bottles with a 37.5-38°without regulation process in acidity for 15-18 h until the formation of a clot. Get production leaven of the consortium in liquid form.

The content of probiotic microorganisms in the biomass symbiotic Association is lg 9-10 in 1 ml.

The method of producing a liquid concentrate of a starter of Bifidobacterium

The method includes the introduction of sowing dose production of the leaven of the proposed consortium cultures of bifidobacteria with a titer of not less than 109CFU/ml in nutrient medium in the amount of 5.0-7.0.% from its volume. Nutrient medium contains, wt%:

Hydrolyzed milk products milk (lactate) 5,0-7,0
Cysteine hydrochloric acid 0,001-0,005
The Baker's yeast autolysate 2,0-4,0
Milk products milk (base) with SOMO no more than 8% the rest is up to 100%

The content of total amino nitrogen in the environment is 500 mg%. The hydrolysate of milk proteins provides enrichment of the nutrient medium with a mixture of high and low molecular weight peptides that are effective stimulants of growth of bifidobacteria. Yeast extract provides vitamins and stimulating factors in the growth of bifidobacteria, as well as a high content of amino nitrogen, ensuring the most favorable conditions for the growth of bifidobacteria. Amine nitrogen is a source of ready assimilation of nitrogen nucleotide bases, necessary for synthesis of nucleic acids of bifidobacteria in their intensive reproduction. Components, providing the reducing properties of the inventive environment are mainly cysteine, and amino acids glutamine and asparagine, has antioxidant properties, which are also rich yeast extract.

Biomass of bifidobacteria grown in a volume of 10 liters and cultivate exceptions in glass bottles with a 37.5-38°without regulation process in acidity within 15-18 hours before the obrazovaniya clot. Liquid concentrate or the leaven of bifidobacteria has a biological titer not less than (0,8-1,0) 1011CFU/ml and acidity 100-120°So the resulting product is cooled and Packed in containers.

The liquid product can be used as a dietary additive for independent use or to enrich them with dairy products for the correction of dysbacteriosis, and also for getting dry biomass method of freeze and spray drying.

Example 2. The method of drying a liquid concentrate or fermenting bifidobacteria

The liquid product obtained in accordance with example 1, enter the protective environment of at least 40% by weight of the latter. Protective environment for drying biomass concentrate or yeast-based consortium of bifidobacteria contains, wt%:

Sodium chloride 0,4-0,5
Peptone 0,7-1,0
Sucrose 6,0-7,0
Gelatin 0,4-0,5
Ascorbic acid 0,07-0,1
Milk solids-non-12,0% the rest is up to 100%

After making a protective environment correction of acidity biomass of bifidobacteria NaOH solution to a pH of 6.5 to 7.0. The resulting suspension is poured into 2 ml ampoules or 5 ml in the bottles, freeze at t= - 40 to 45°and lyophilizers from the frozen state in a vacuum drying apparatus. After drying the product it has a titer of living cells of bifidobacteria not less than 1010-1011CFU/ml and contains a number of moisture - not more than 0.1 to 0.2%.

In addition, the liquid product can be dried in a standard spray dryer under sterile conditions. This liquid product is subjected to spray drying in the upstream heated to 50-55°With air. The obtained dry product contains not less than 1010-1011living cells of bifidobacteria in 1, the residual moisture content of 1-2%.

Example 3. The use of liquid yeast for the preparation of symbiotic fermented milk products treatment of functional food

Liquid yeast consortium, prepared according to example 1 (after the 3rd passage), in the amount of 0.2-0.3% make pasteurized milk with kefir, or acidophilus yeast in the amount of sourdough provided for the preparation of bifidokefir or upazila, mix and cultivate 4-18 h until the formation of a clot, then the product is cooled and Packed in consumer packaging. As a result of receiving treatment-and-prophylactic dairy products are with the content useful bifidoflora not less than lg 7-8 in 1 ml of symbiotic product.

The resulting products have a pronounced of immunocard giraudon action.

Example 4. Use dry yeast direct Deposit for preparation of symbiotic fermented milk products treatment of functional food

Dry yeast consortium, in the amount of 0.005 to 0.05 wt.% directly contribute in pasteurized milk with kefir, or acidophilus yeast in the amount of sourdough provided for the preparation of bifidokefir or upazila, mix and cultivate 4-18 h until the formation of a clot, then the product is cooled and Packed in consumer packaging. As a result of receiving treatment-and-prophylactic dairy products containing live bacteria is not less than lg 6-7 in 1 ml of symbiotic product.

The resulting products have a pronounced immunocorrective action.

The amino acid composition of the liquid concentrate of bifidobacteria, prepared on the basis of the proposed consortium

Table 3 shows the amino-acid analysis.

td align="center"> 13.11
Table 3
The content of amino acids in GKB-based consortium of bifidobacteria
The name of the INDISPENSABLE amino acids Content (mg/l) The name of the NONESSENTIAL amino acids Content (mg/l)
Threonine Serine 7.72
Valine 34.67 Glutamic acid At 14.88
Methionine 12.87 Proline 27.47
Isoleucine 15.51 Glycine 2.71
Leucine 56.20 Alanine 27.37
Phenylalanine 38.0 Cysteine 0
Tryptophan - Tyrosine 51.10
Lysine 32.38 Histidine 45.04
Glutamine 6.83 Aspartic acid 0.4
Arginine 32.13
TOTAL 50% (209.57) TOTAL 208.82

Thus, liquid concentrate bifidobacteria, prepared on the basis of the proposed consortium, has a high biological value and is a supplier of essential amino acids, which are easily digestible form. A rich set of essential amino acids, such as valine - 8.3%, leucine - 13.4%, lysine - 7.7%, and methionine - 3.1%, has important physiological significance, because the lack of valine mean is it the disorder of motor coordination, the lack of leucine causes changes in the kidneys and the thyroid gland, deficiency of lysine leads to disruption of processes krovoobrashseniya.

In a liquid concentrate of bifidobacteria content of arginine could increase to 7.7% vs 2.0% in the liquid concentrate of bifidobacteria obtained on the basis of the consortium of the prototype and the production technology. The increase in the concentration of arginine is very important, because this amino acid stimulates the immune system, in addition, it has antioxidant properties, which helps to increase the shelf life of the product.

Study of the retention of the consortium of strains of bifidobacteria in the liquid concentrate of bifidobacteria

Investigated the duration of storage of the consortium of strains of bifidobacteria in the liquid concentrate of bifidobacteria (table 4). A considerable time (up to 3 months) storage of liquid concentrate of bifidobacteria with a titer of not less than 1010CFU/ml is associated with providing the initial acidity of the drug consortium of bifidobacteria (140-145)°T, obtaining the original title of bifidobacteria (not below 1011CFU/ml).

Table 4
Data on the safety of the proposed consortium of bifidobacteria in JCB
No. of samples is ICB on the basis of the proposed consortium Acidity T° initial Acidity T° end 5 months Title, initial CFU/ml Titer after 4 months CFU/ml Titer after 5 months CFU/ml
1 147 160 1×1011 1×1010 3×108
2 120 - 4×1010 8×109 1×108
3 125 165 1×1011 1×1010 2×108
4 150 170 8×1010 4×1010 7×108

The research activity of the dry concentrate of bifidobacteria obtained on the basis of the proposed consortium (see table 5).

The study is subjected to the dry concentrate of bifidobacteria obtained in accordance with example 2.

Table 5
Data research activity of the consortium of bifidobacteria in the dry concentrate, obtained by spray or freeze methods
Production leaven Liquid conc the bifidobacteria on the basis of the consortium (GCB)
Name of consort. Types of strains in the consortium The ratio of strains % Time of cultivation, hours Acidity T° Title JCB before drying The titer (CFU/ml) GCB after the drying process Humidity
Lyophilic Spray
The placeholder 1) B. bifidum BUG 791 80 22 146 2×1010 8×109 1×108 1-2%
2) B. longum (TWO to 13) 10
3) B. bifidum 8-3 10
Declare 1) B. bif. 8-3 60 22 146 3×1010 3×1010 1×1010 0,1%
2) B. longum-A
20
3) B. adolescentis B1
20

After freeze drying GCB (table 5) active dry ECB on the basis of the proposed consortium is five times higher, and after spray drying is two orders of magnitude compared to the prototype.

Industrial applicability. These examples show that the proposed consortium of strains 3 species of bifidobacteria actively propagated in a relatively poor nutrient media with the accumulation of biomass production in a short period of cultivation. The product has a specification is a political activity. The consortium strains can be recommended as part of starter cultures for the preparation of liquid or dry concentrate of bifidobacteria fermented therapeutic and dietary products and bacterial preparations. Used culture media and reagents available to the public. Tools and techniques for getting and growing biomass consortium, and the tools and techniques that provide a drying liquid concentrate of a starter culture, traditionally used in the medical industry and biotechnology.

1. The method of producing a liquid or dry concentrate of a starter culture of bacteria, including the introduction of sowing dose of culture bacteria in a nutrient medium containing a nutrient medium with the addition of cysteine hydrochloric acid, autolysate or extract of Baker's yeast cultivation of biomass of bifidobacteria in (37-38)±0,5°to obtain a concentrate of bifidobacteria, cooling and packing of finished liquid product or the introduction of a liquid product protective environment and freeze drying it in a sterile environment, wherein the culture medium was further added bactopeptone, as the basis of nutrient use skim milk with the content of dry skim milk residue not more than 8% in the following ratio of components of the nutrient medium, wt.%:

bactopeptone 5,0-7,0
cysteine hydrochloric acid 0,001-0,005
the autolysate or extract
Baker's yeast 2,0-4,0
skim milk with a dry content
skim milk
the residue is not more than 8% the rest is up to 100%

and as sowing dose of bifidobacteria using a consortium of strains of Bifidobacterium Bifidobacterium bifidum 8-3, Bifidobacterium longum A, Bifidobacterium adolescentis B1.

2. The method according to claim 1, characterized in that the sowing dose of strains of Bifidobacterium bifidum 8-3, Bifidobacterium longum A, Bifidobacterium adolescentis B1 are in the ratio 3:1:1.

3. The method according to claim 1, characterized in that the sowing dose of bifidobacteria contribute in the amount of 5.0-7.0% of the volume of the nutrient medium with the title of bifidobacteria not less than 109CFU/ml, culturing is carried out for a time sufficient for obtaining a concentrate of bifidobacteria with the biological titer of not less than (0,8-1,0) 1011CFU/ml and acidity 100-120°T, and protective environment contribute in the finished liquid product in an amount of not less than 40% by weight of the latter.

4. The method according to claim 1, characterized in that the protective environment for drying biomass concentrate or yeast-based consortium bifidobak URI contains sodium chloride, peptone, sucrose, gelatin, ascorbic acid at the following content, wt.%:

sodium chloride 0,4-0,5
peptone 0,7-1,0
sucrose 6,0-7,0
gelatin 0,4-0,5
ascorbic acid 0,07-0,1
milk solids-non-12,0% the rest is up to 100%

5. The method according to claim 1, characterized in that before drying after making a protective environment correction of acidity biomass of bifidobacteria NaOH solution to pH 6,5-7,0.

 

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