CN112813011A - Lactobacillus casei and application thereof in preparation of stachyose synbiotic yoghourt - Google Patents

Lactobacillus casei and application thereof in preparation of stachyose synbiotic yoghourt Download PDF

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Publication number
CN112813011A
CN112813011A CN202110309811.XA CN202110309811A CN112813011A CN 112813011 A CN112813011 A CN 112813011A CN 202110309811 A CN202110309811 A CN 202110309811A CN 112813011 A CN112813011 A CN 112813011A
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CN
China
Prior art keywords
lactobacillus casei
stachyose
preparation
yoghourt
yogurt
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110309811.XA
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Chinese (zh)
Inventor
齐海心
刘力娟
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Beijing Baoyuan Guangtong Technology Development Co ltd
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Beijing Baoyuan Guangtong Technology Development Co ltd
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Priority to CN202110309811.XA priority Critical patent/CN112813011A/en
Publication of CN112813011A publication Critical patent/CN112813011A/en
Pending legal-status Critical Current

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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
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12NMICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/20Bacteria; Culture media therefor
    • 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

Abstract

The invention belongs to the technical field of microbial fermentation, and particularly relates to lactobacillus casei and application thereof in preparation of stachyose synbiotic yoghourt. The lactobacillus casei strain has a preservation unit of China general microbiological culture Collection center (CGMCC), the address of No. 3 Siro No. 1 of the Kyoho district in Beijing, the preservation time of 2020 and 11 months and 09 days, the preservation number of CGMCC No.21128, and the referenced biological materials (strains): BLc08, suggested classification nomenclature: lactobacillus casei. By the method for fermenting the stachyose synbiotic yoghourt by the lactobacillus casei, the fermentation period is shortened, the obtained yoghourt has high viable bacteria content and strong health-care function, the probiotic function of the lactobacillus casei is fully exerted, and the yoghourt also has excellent sensory flavor and tissue state and excellent mouth feel.

Description

Lactobacillus casei and application thereof in preparation of stachyose synbiotic yoghourt
Technical Field
The invention belongs to the technical field of microbial fermentation, and particularly relates to lactobacillus casei and application thereof in preparation of stachyose synbiotic yoghourt.
Background
The lactobacillus casei can survive in a large amount in the intestinal tract as a probiotic, can accelerate the elimination of bacteria in the intestinal tract, treat intestinal flora disorder, improve the function of the gastrointestinal tract and maintain the normal digestive system of a human body; the lactobacillus casei can also effectively reduce blood pressure and cholesterol, promote cell division, enhance immunity and resistance of people and resist allergy; the lactobacillus casei can also effectively provide nutrient substances, promote metabolism in human bodies, provide essential amino acid and vitamin for the human bodies, improve the activity of mineral elements and provide essential nutrient substances for the human bodies, thereby enhancing the nutrient metabolism. Therefore, in recent years, lactobacillus casei has remarkable probiotic effects on host nutrition, immunity, disease prevention and the like, and is often used as a starter and an auxiliary starter of yogurt.
The fermentation of probiotics usually adopts a means of mixed fermentation with traditional yoghurt bacteria, but because the traditional yoghurt bacteria can inhibit the fermentation of the probiotics in the fermentation process, the probiotic function of the probiotics cannot be fully exerted. In order to solve the problems, prebiotics can be added in the fermentation process, wherein the prebiotics are substances capable of promoting the growth and the reproduction of probiotics, cannot be absorbed by human bodies, cannot directly act on organisms, and exert physiological functions through the probiotics, namely, the prebiotics are nutrients and hotbeds of the probiotics.
Stachyose is a natural functional alpha-galacto-oligosaccharide existing in plants, has no toxic or side effect, improves gastrointestinal tract function through dual functions of soluble dietary fiber and prebiotics, has the functions of relieving constipation, improving intestinal flora, improving immunity, reducing blood sugar, protecting liver, inhibiting tumor cell activity and the like, and has specific proliferation effect on intestinal probiotics. Stachyose can proliferate bifidobacteria at 40 times of increasing speed, but the prior art does not disclose that stachyose has promoting effect on lactobacillus casei, and the technical proposal for preparing synbiotic yoghourt by co-fermenting stachyose and lactobacillus casei by the technicians in the field does not exist.
Disclosure of Invention
In order to solve the problem that the probiotic function of lactobacillus casei is greatly reduced by the traditional fermentation method, the invention provides lactobacillus casei, stachyose synbiotic yoghourt is produced by fermenting stachyose, the fermentation period is shortened, and the probiotic function of lactobacillus casei is fully exerted.
The lactobacillus casei provided by the invention has the preservation unit of China general microbiological culture Collection center (CGMCC), the address of No. 3 Siro-1 Hospital, the Naja-oriented region, Beijing, the preservation time of 11-09 days in 2020, the preservation number of CGMCC No.21128, and the reference biological materials (strains): BLc08, suggested classification nomenclature: lactobacillus casei (Lactobacillus casei).
Further, the application of the lactobacillus casei in preparing stachyose synbiotic yoghourt comprises the following preparation method:
(1) activating lactobacillus casei;
(2) and (3) adopting a propagation medium containing stachyose to culture and propagate the lactobacillus casei.
Further, in the step (1), the activation medium used is: 20-30g/L glucose, 22-28g/L yeast extract, 18-25g/L pumpkin juice and the balance of water.
Further, the preparation method of the pumpkin juice comprises the following steps: selecting fresh pumpkin without insect pest corrosion, peeling, removing gourd ladle, squeezing into paste, adding 2-3 times of water of pumpkin paste mass into pumpkin paste, heating at 75-85 deg.C for 10-20min, naturally cooling, collecting upper layer pumpkin juice, and sterilizing.
Further, in the step (1), the activation step is: placing Lactobacillus casei strain into activation culture medium, standing at 37 deg.C, culturing at constant temperature for 16-18 hr for activation to obtain viable count of 109CFU/mL or above for use.
Further, in the step (3), the preparation method of the proliferation medium comprises: adding 8-15g/L stachyose into whole milk, mixing, sterilizing at 100 deg.C for 10min, and cooling to 37 deg.C for use.
Further, in the step (3), the proliferation step is: inoculating the activated strain into a proliferation culture medium with an inoculation amount of 1-2% by volume, standing at 37 deg.C, culturing at constant temperature until curd, and fermenting at 4 deg.C for 12-14h to obtain stachyose prebiotics yogurt product.
The invention has the beneficial effects that:
the stachyose synbiotic yoghourt fermented by the lactobacillus casei is high in viable bacteria content and strong in health care function, so that the probiotic function of the lactobacillus casei is fully exerted, constipation can be effectively relieved, intestinal flora can be improved, the immune function can be improved, and the like.
The fermentation process adopted by the invention is simple, and the addition of stachyose accelerates the proliferation speed of the lactobacillus casei, thereby greatly shortening the fermentation period, improving the production efficiency and being suitable for industrial production.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The lactobacillus casei provided by the embodiment of the invention has the preservation unit of China general microbiological culture Collection center, the preservation time of 2020, 11 and 09 months, the preservation number of CGMCC No.21128, and the reference biological materials (strains): BLc08, suggested classification nomenclature: lactobacillus casei (Lactobacillus casei).
The application of the lactobacillus casei in preparing stachyose prebiotics yoghourt comprises the following preparation method:
(1) the activation medium is: 25g/L glucose, 22g/L yeast extract, 20g/L pumpkin juice and the balance of water;
the preparation method of the pumpkin juice comprises the following steps: selecting fresh pumpkin without insect pest corrosion, peeling, removing gourd ladle, squeezing into paste, adding water 2.5 times the mass of pumpkin paste into pumpkin paste, heating at 80 deg.C for 15min, naturally cooling, collecting upper layer pumpkin juice, and sterilizing;
placing Lactobacillus casei strain into activation culture medium, standing at 37 deg.C, culturing at constant temperature for 16 hr for activation until viable count reaches 109CFU/mL or above for use.
(2) Preparing a proliferation culture medium: adding 10g/L stachyose into whole milk, mixing, sterilizing at 100 deg.C for 10min, and cooling to 37 deg.C;
inoculating the activated strain into a proliferation culture medium with an inoculation amount of 1% by volume, standing at 37 ℃, culturing at constant temperature until curd, and fermenting at 4 ℃ for 12h to obtain stachyose synbiotic yogurt.
The acidity of the yoghourt is 73.07 DEG T, the viscosity is 4475mP/s, the water holding capacity is 73.6%, and the yoghourt conforms to the GB19302-2010 standard of stirring type yoghourt; the color and luster of the fermented milk are uniform and consistent, the fermented milk is milk white, has milk fragrance and fermentation fragrance, and is sour and sweet; the curd is good, the tissue is fine and uniform, and the phenomena of whey separation and layering do not occur.
Example 2
The lactobacillus casei provided by the embodiment of the invention has the preservation unit of China general microbiological culture Collection center, the preservation time of 2020, 11 and 09 months, the preservation number of CGMCC No.21128, and the reference biological materials (strains): BLc08, suggested classification nomenclature: lactobacillus casei (Lactobacillus casei).
The application of the lactobacillus casei in preparing stachyose prebiotics yoghourt comprises the following preparation method:
(1) the activation medium is: 28g/L glucose, 23g/L yeast extract, 12g/L pumpkin juice and the balance of water;
the preparation method of the pumpkin juice comprises the following steps: selecting fresh pumpkin without insect pest corrosion, peeling, removing gourd ladle, squeezing into paste, adding water 3 times of pumpkin paste into pumpkin paste, heating at 80 deg.C for 18min, naturally cooling, collecting upper layer pumpkin juice, and sterilizing;
placing Lactobacillus casei strain into activation culture medium, standing at 37 deg.C, culturing at constant temperature for 18 hr for activation to obtain viable count of 109CFU/mL or above for use.
(2) Preparing a proliferation culture medium: adding 13g/L stachyose into whole milk, mixing, sterilizing at 100 deg.C for 10min, and cooling to 37 deg.C;
inoculating the activated strain into a proliferation culture medium with an inoculum size of 2% by volume, standing at 37 deg.C, culturing at constant temperature until curd, and fermenting at 4 deg.C for 13h to obtain stachyose prebiotics yogurt.
The acidity of the yoghourt is 74.32 DEG T, the viscosity is 4652mP/s, the water holding capacity is 73.1%, and the yoghourt conforms to the GB19302-2010 standard of stirring type yoghourt; the color and luster of the fermented milk are uniform and consistent, the fermented milk is milk white, has milk fragrance and fermentation fragrance, and is sour and sweet; the curd is good, the tissue is fine and uniform, and the phenomena of whey separation and layering do not occur.
Comparative example 1
The stachyose synbiotic yoghourt is prepared by selecting commercially available lactobacillus casei, the strain activation time is 28h, the propagation and fermentation time is 23h, and other preparation methods are the same as those in the embodiment 2. Therefore, the lactobacillus casei of the embodiment 1-2 of the invention has faster proliferation speed and shorter activation and fermentation time by adding stachyose, which shows that the stachyose has promotion effect on the lactobacillus casei of the invention, can shorten the fermentation period and improve the production efficiency.
The acidity of the yoghurt prepared by the comparative example is 68.75 DEG T, the viscosity is 4052mP/s, the water-holding capacity is 64.8 percent, the acidity does not meet the GB 19302-.
Although the present invention has been described in detail by way of preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. The lactobacillus casei is characterized in that the preservation unit of the lactobacillus casei strain is China general microbiological culture Collection center (CGMCC), the address is No. 3 of West Lu No. 1 of the North West Chen of the Yang facing district in Beijing, the preservation time is 11 months and 09 days in 2020, the preservation number is CGMCC No.21128, and the referenced biological materials (strains) are as follows: BLc08, suggested classification nomenclature: lactobacillus casei (Lactobacillus casei).
2. Use of a lactobacillus casei as claimed in claim 1 in the preparation of stachyose synbiotic yoghurt.
3. The use of lactobacillus casei in the preparation of stachyose prebiotic yogurt as claimed in claim 1, which comprises the following preparation method:
(1) activating lactobacillus casei;
(2) and (3) adopting a propagation medium containing stachyose to culture and propagate the lactobacillus casei.
4. The use of lactobacillus casei for the preparation of stachyose prebiotic yogurt as claimed in claim 3, wherein the activation medium used in step (1) is: 20-30g/L glucose, 22-28g/L yeast extract, 18-25g/L pumpkin juice and the balance of water.
5. The use of lactobacillus casei in the preparation of stachyose prebiotic yogurt as claimed in claim 4, wherein the preparation method of the pumpkin juice comprises: selecting fresh pumpkin without insect pest corrosion, peeling, removing gourd ladle, squeezing into paste, adding 2-3 times of water of pumpkin paste mass into pumpkin paste, heating at 75-85 deg.C for 10-20min, naturally cooling, collecting upper layer pumpkin juice, and sterilizing.
6. The use of lactobacillus casei for the preparation of stachyose prebiotic yogurt as claimed in claim 3, wherein in step (1), the activation step is: placing Lactobacillus casei strain into activation culture medium, standing at 37 deg.C, culturing at constant temperature for 16-18 hr for activation to obtain viable count of 109CFU/mL or above for use.
7. The use of lactobacillus casei in the preparation of stachyose prebiotic yogurt as claimed in claim 3, wherein the propagation medium is prepared by the method comprising the steps of: adding 8-15g/L stachyose into whole milk, mixing, sterilizing at 100 deg.C for 10min, and cooling to 37 deg.C for use.
8. The use of lactobacillus casei for the preparation of stachyose prebiotic yogurt as claimed in claim 3, wherein in step (3), the propagation step is: inoculating the activated strain into a proliferation culture medium with an inoculation amount of 1-2% by volume, standing at 37 deg.C, culturing at constant temperature until curd, and fermenting at 4 deg.C for 12-14h to obtain stachyose prebiotics yogurt product.
CN202110309811.XA 2021-03-23 2021-03-23 Lactobacillus casei and application thereof in preparation of stachyose synbiotic yoghourt Pending CN112813011A (en)

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EP2228067A1 (en) * 2010-02-22 2010-09-15 LR Health & Beauty Systems GmbH Probiotic compound and use of same
CN102318676A (en) * 2011-08-01 2012-01-18 陕西科技大学 Solidified synbiotic goat yogurt and preparation method thereof
CN106234590A (en) * 2016-09-23 2016-12-21 陕西科技大学 A kind of preparation method of symphysis unit milk beverage
CN112056399A (en) * 2020-06-28 2020-12-11 武汉康复得生物科技股份有限公司 Probiotic composition for enhancing immunity and application thereof
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Application publication date: 20210518