CN106490361A - A kind of preparation method of the CpG ODN for having immune-enhancing activity to pig - Google Patents

A kind of preparation method of the CpG ODN for having immune-enhancing activity to pig Download PDF

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CN106490361A
CN106490361A CN201610938491.3A CN201610938491A CN106490361A CN 106490361 A CN106490361 A CN 106490361A CN 201610938491 A CN201610938491 A CN 201610938491A CN 106490361 A CN106490361 A CN 106490361A
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cpg odn
pig
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张艳雯
郑民
郑一民
张宁
兰宗宝
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Nanning University
Nanning Institute
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    • C12PFERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIRED CHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERS FROM A RACEMIC MIXTURE
    • C12P19/00Preparation of compounds containing saccharide radicals
    • C12P19/26Preparation of nitrogen-containing carbohydrates
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K39/00Medicinal preparations containing antigens or antibodies
    • A61K2039/555Medicinal preparations containing antigens or antibodies characterised by a specific combination antigen/adjuvant
    • A61K2039/55511Organic adjuvants
    • A61K2039/55561CpG containing adjuvants; Oligonucleotide containing adjuvants

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Abstract

The present invention relates to veterinary biological product technical field, and in particular to a kind of preparation method of the CpG ODN for having immune-enhancing activity to pig;Comprise the following steps:(1) CpG ODN volume productions (2) coating agent (3) dispensing;The present invention can induce body and produce panimmunity effect, which is promoted to secrete cytokine profiles, improve the special and nonspecific immune reaction ability of body, it is added in feedstuff and can effectively improves the immunity of pig itself, there is good immune effect to the great animal epidemic such as current highly pathogenic PRRS, high pathogenic avian influenza, foot and mouth disease, swine fever, the survival rate of pig is effectively improved, the generation of disease is reduced, aquaculture cost is reduced.

Description

A kind of preparation method of the CpG ODN for having immune-enhancing activity to pig
Technical field
The present invention relates to veterinary biological product technical field, and in particular to a kind of CpG for having immune-enhancing activity to pig The preparation method of ODN.
Background technology
Cytosine-guanine oligodeoxynucleotide (CpGoligodeoxymieleotides, CpG ODN), also referred to as exempts from Epidemic disease stimulate DNA sequence, be a class with non-methylated cytidylic acid and guanylic acid the specific nucleotide as core Sequence, can induce body and produce panimmunity effect (such as activating immune cell), promote which to secrete cytokine profiles, improve The special and nonspecific immune reaction ability of body.Functional study find, CpG ODN can activating B cell, NK cells, monokaryon/ The immunocytes such as macrophage, dendritic cell, T cell, induction produce the cytokine profiles such as IL-12, TNF-d, INF- γ, Promote the expression of mhc class ii molecule and costimulating factor CD40, CD80, CD86.Importantly, it is capable of adding for enhancement antigen Work is offered, and induction immunne response is changed to Th1 types, produces stronger specific cellular immunity and humoral immunization.Therefore, CpG ODN is not only a kind of effective immunostimulant, and preferably Th1 type immunological adjuvants, is a kind of for traditional vaccine Adjuvant better than aluminium porcelain enamelling.
The great animal epidemics such as current highly pathogenic PRRS, high pathogenic avian influenza, foot and mouth disease, swine fever are threatened always The sound development of Yongning pastoral industry, strengthens vaccine virus for the research of CpG ODN concentrates on which as immunological adjuvant at present In the immunological enhancement of strain, and CpG ODN are rarely reported as the application of feed additive, this research further will be promoted Applications of the new immunostimulant CpG ODN in swine diseasess immune protection, provides new method and thinking for swine diseasess preventing and treating.
Content of the invention
The present invention is solution above-mentioned technical problem, there is provided a kind of preparation of the CpG ODN for having immune-enhancing activity to pig Method.
Realize particular by technical scheme below:
A kind of preparation method of the CpG ODN for having immune-enhancing activity to pig, comprises the following steps:
(1) CpG ODN volume productions, comprise the following steps:
A, fermentation:CpG ODN plasmids are proceeded in e.colistraindh5α, 35~36 DEG C, 250~280rpm concussion trainings 2~2.5h is supported, Escherichia coli bacteria liquid is obtained, the volume ratio by 1: 70~80 is inoculated in fermentation medium, fermentation culture 15 ~20h.
B, extraction:Bacterium solution concussion stirring after fermenting in step a, subsequently by the bacteriolyze for adding 50~60 μ g per ml bacterium solutions Enzyme Standard entertion, stirs, and under 35.2~35.8 DEG C of water bath with thermostatic control, stirs 8~12min, subsequently, adds by every ml bacterium solutions Enter the LiCl of 0.2~0.3ml, 6~8min is centrifuged under the rotating speed of 10000r/min, takes supernatant.
C, heating:Supernatant in stepb, concussion 15~20min of stirring are placed in 20~25min of heating in boiling water bath, cold But the isopropanol of the quality such as supernatant, sedimentation and centrifugation to 20~25 DEG C, is added to take precipitation.
D, sterilizing:1~1.5 times of precipitation quality of ethanol is added, 20~30min is stood, vacuum distillation is reclaimed ethanol and is Can.
(2) coating agent:The distilled water of 20~30 parts of beta-schardinger dextrin -s, 6~8 parts of ethyl celluloses and 35~40 parts is mixed Compound is obtained, stirring in water bath to volume concentration to mixture volume 1/3 at 100 DEG C, after being cooled to room temperature, adds 5~7 parts Oleum menthae, 2.5~3 parts of phosphoric acid, 20~30min of stirring in water bath at 70 DEG C.
(3) dispensing:Coating agent in step (2) is coated in after the sterilizing in step (1) by 1~1.5 μm of thickness In precipitation, at 35~40 DEG C, 3~4min is vibrated under the frequency of vibration of 400~500 times/min, obtain microcapsule, 100 Add 0.05~0.1 part of microcapsule in part daily ration, mix thoroughly.
Further, described fermentation medium, is made up of following raw material by weight:Beef extract 4~5, albumen Peptone 1~2, glucose 2.5~4, agar 1~2, Fructus Schisandrae Chinensis 10~15, Herba Epimedii 4~7, Semen Trigonellae 8~12, the Cortex Eucommiae 2~4, third Ketone is some.
Further, described fermentation medium, be Fructus Schisandrae Chinensis, Herba Epimedii, Semen Trigonellae, the Cortex Eucommiae are weighed in proportion after, smash Broken 20~25min, adds 5~6 times of Chinese medicine gross mass of acetone, impregnates 38~42h, and vacuum distillation is reclaimed acetone, obtained remaining Liquid, adds beef extract, peptone, glucose and agar, mixes thoroughly, and it is 25 DEG C that heating adjusts the temperature of culture medium.
Further, described LiCl, its concentration are 2.5~3.1mol/l.
Further, described ethanol, its concentration are 15~20%.
In sum, the beneficial effects of the present invention is:CpG ODN can induce body and produce panimmunity effect, promote Enter which and secrete cytokine profiles, improve the special and nonspecific immune reaction ability of body, being added in feedstuff can be effective Raising pig itself immunity, great to current highly pathogenic PRRS, high pathogenic avian influenza, foot and mouth disease, swine fever etc. Animal epidemic has good immune effect, effectively improves the survival rate of pig, reduces the generation of disease, reduces aquaculture cost.
Specific embodiment
Below the specific embodiment of the present invention is described in further detail, but the invention is not limited in these realities Mode is applied, any improvement or replacement on the present embodiment essence spirit still falls within the claims in the present invention required for protection Scope.
Embodiment 1
A kind of preparation method of the CpG ODN for having immune-enhancing activity to pig, comprises the following steps:
(1) CpG ODN volume productions, comprise the following steps:
A, fermentation:CpG ODN plasmids are proceeded in escherichia coli DH5a bacterial strain, 35 DEG C, 250rpm concussion and cultivates 2h are obtained greatly Enterobacteria bacterium solution, the volume ratio by 1: 70 are inoculated in fermentation medium, fermentation culture 15h.
B, extraction:Bacterium solution concussion stirring after fermenting in step a, subsequently by the lysozyme mark for adding 50 μ g per ml bacterium solutions Quasi- addition, stirs, and under 35.2 DEG C of water bath with thermostatic control, stirs 8min, subsequently, by the LiCl that every ml bacterium solutions add 0.2ml, 6min is centrifuged under the rotating speed of 10000r/min, supernatant is taken.
C, heating:Supernatant in stepb, concussion stirring 15min, is placed in heating 20min in boiling water bath, is cooled to 20 DEG C, add the isopropanol of the quality such as supernatant, sedimentation and centrifugation to take precipitation.
D, sterilizing:1 times of precipitation quality of ethanol is added, 20min is stood, ethanol is reclaimed in vacuum distillation.
(2) coating agent:The distilled water of 20g beta-schardinger dextrin -s, 6g ethyl celluloses and 35g is mixed to obtain compound, 100 Stirring in water bath to volume concentration to mixture volume 1/3 at DEG C, after being cooled to room temperature, adds Oleum menthae, the phosphorus of 2.5g of 5g Acid, stirring in water bath 20min at 70 DEG C.
(3) dispensing:Coating agent in step (2) is coated in the precipitation after the sterilizing in step (1) by 1 μm of thickness On, at 35 DEG C, 3min is vibrated under the frequency of vibration of 400 times/min, obtain microcapsule, add 0.05g in 100g daily rations Microcapsule, mix thoroughly.
Described fermentation medium, is made up of following raw material by weight:Beef extract 4g, peptone 1g, Fructus Vitis viniferae Sugared 2.5g, agar 1g, Fructus Schisandrae Chinensis 10g, Herba Epimedii 4g, Semen Trigonellae 8g, Cortex Eucommiae 2g, acetone are some.
Described fermentation medium, be Fructus Schisandrae Chinensis, Herba Epimedii, Semen Trigonellae, the Cortex Eucommiae are weighed in proportion after, smash 20min to pieces, 5~6 times of Chinese medicine gross mass of acetone is added, 38h is impregnated, vacuum distillation is reclaimed acetone, obtains residual solution, add beef leaching Cream, peptone, glucose and agar, mix thoroughly, and it is 25 DEG C that heating adjusts the temperature of culture medium.
Described LiCl, its concentration are 2.5mol/l.
Described ethanol, its concentration are 15%.
Embodiment 2
A kind of preparation method of the CpG ODN for having immune-enhancing activity to pig, comprises the following steps:
(1) CpG ODN volume productions, comprise the following steps:
A, fermentation:CpS ODN plasmids are proceeded in e.colistraindh5α, 36 DEG C, 280rpm concussion and cultivates 2.5h are obtained Escherichia coli bacteria liquid, the volume ratio by 1: 80 are inoculated in fermentation medium, fermentation culture 20h.
B, extraction:Bacterium solution concussion stirring after fermenting in step a, subsequently by the lysozyme mark for adding 60 μ g per ml bacterium solutions Quasi- addition, stirs, and under 35.8 DEG C of water bath with thermostatic control, stirs 12min, subsequently, adds 0.3ml's by every ml bacterium solutions LiCl, under the rotating speed of 10000r/min is centrifuged 8min, takes supernatant.
C, heating:Supernatant in stepb, concussion stirring 20min, is placed in heating 25min in boiling water bath, is cooled to 25 DEG C, add the isopropanol of the quality such as supernatant, sedimentation and centrifugation to take precipitation.
D, sterilizing:1.5 times of precipitation quality of ethanol is added, 30min is stood, ethanol is reclaimed in vacuum distillation.
(2) coating agent:The distilled water of 30g beta-schardinger dextrin -s, 8g ethyl celluloses and 40g is mixed to obtain compound, 100 Stirring in water bath to volume concentration to mixture volume 1/3 at DEG C, after being cooled to room temperature, adds Oleum menthae, the phosphoric acid of 3g of 7g, Stirring in water bath 30min at 70 DEG C.
(3) dispensing:Coating agent in step (2) is coated in the precipitation after the sterilizing in step (1) by 1.5 μm of thickness On, at 40 DEG C, 4min is vibrated under the frequency of vibration of 500 times/min, obtain microcapsule, add 0.1g's in 100g daily rations Microcapsule, mixes thoroughly.
Described fermentation medium, is made up of following raw material by weight:Beef extract 5g, peptone 2g, Fructus Vitis viniferae Sugared 4g, agar 2g, Fructus Schisandrae Chinensis 15g, Herba Epimedii 7g, Semen Trigonellae 12g, Cortex Eucommiae 4g, acetone are some.
Described fermentation medium, be Fructus Schisandrae Chinensis, Herba Epimedii, Semen Trigonellae, the Cortex Eucommiae are weighed in proportion after, smash 25min to pieces, 5~6 times of Chinese medicine gross mass of acetone is added, 42h is impregnated, vacuum distillation is reclaimed acetone, obtains residual solution, add beef leaching Cream, peptone, glucose and agar, mix thoroughly, and it is 25 DEG C that heating adjusts the temperature of culture medium.
Described LiCl, its concentration are 3.1mol/l.
Described ethanol, its concentration are 20%.
Embodiment 3
A kind of preparation method of the CpG ODN for having immune-enhancing activity to pig, comprises the following steps:
(1) CpG ODN volume productions, comprise the following steps:
A, fermentation:CpG ODN plasmids are proceeded in e.colistraindh5α, 35.5 DEG C, 270rpm concussion and cultivates 2.3h, Escherichia coli bacteria liquid is obtained, the volume ratio by 1: 75 is inoculated in fermentation medium, fermentation culture 18h.
B, extraction:Bacterium solution concussion stirring after fermenting in step a, subsequently by the lysozyme mark for adding 55 μ g per ml bacterium solutions Quasi- addition, stirs, and under 35.5 DEG C of water bath with thermostatic control, stirs 10min, subsequently, adds 0.25ml's by every ml bacterium solutions LiCl, under the rotating speed of 10000r/min is centrifuged 7min, takes supernatant.
C, heating:Supernatant in stepb, concussion stirring 18min, is placed in heating 23min in boiling water bath, is cooled to 23 DEG C, add the isopropanol of the quality such as supernatant, sedimentation and centrifugation to take precipitation.
D, sterilizing:1.3 times of precipitation quality of ethanol is added, 25min is stood, ethanol is reclaimed in vacuum distillation.
(2) coating agent:The distilled water of 25g beta-schardinger dextrin -s, 7g ethyl celluloses and 38g is mixed to obtain compound, 100 Stirring in water bath to volume concentration to mixture volume 1/3 at DEG C, after being cooled to room temperature, adds Oleum menthae, the phosphorus of 2.8g of 6g Acid, stirring in water bath 25min at 70 DEG C.
(3) dispensing:Coating agent in step (2) is coated in the precipitation after the sterilizing in step (1) by 1.3 μm of thickness On, at 38 DEG C, 3.5min is vibrated under the frequency of vibration of 450 times/min, obtain microcapsule, add in 100g daily rations The microcapsule of 0.08g, mixes thoroughly.
Described fermentation medium, is made up of following raw material by weight:Beef extract 4.5g, peptone 1.5g, Glucose 3g, agar 1.5g, Fructus Schisandrae Chinensis 13g, Herba Epimedii 5g, Semen Trigonellae 10g, Cortex Eucommiae 3g, acetone are some.
Described fermentation medium, be Fructus Schisandrae Chinensis, Herba Epimedii, Semen Trigonellae, the Cortex Eucommiae are weighed in proportion after, smash 23min to pieces, 5~6 times of Chinese medicine gross mass of acetone is added, 40h is impregnated, vacuum distillation is reclaimed acetone, obtains residual solution, add beef leaching Cream, peptone, glucose and agar, mix thoroughly, and it is 25 DEG C that heating adjusts the temperature of culture medium.
Described LiCl, its concentration are 2.8mol/l.
Described ethanol, its concentration are 18%.
Embodiment 4
A kind of preparation method of the CpG ODN for having immune-enhancing activity to pig, comprises the following steps:
(1) CpG ODN volume productions, comprise the following steps:
A, fermentation:CpG ODN plasmids are proceeded in e.colistraindh5α, 36 DEG C, 250rpm concussion and cultivates 2h are obtained greatly Enterobacteria bacterium solution, the volume ratio by 1: 80 are inoculated in fermentation medium, fermentation culture 15h.
B, extraction:Bacterium solution concussion stirring after fermenting in step a, subsequently by the lysozyme mark for adding 60 μ g per ml bacterium solutions Quasi- addition, stirs, and under 35.2 DEG C of water bath with thermostatic control, stirs 12min, subsequently, adds 0.2ml's by every ml bacterium solutions LiCl, under the rotating speed of 10000r/min is centrifuged 6min, takes supernatant.
C, heating:Supernatant in stepb, concussion stirring 20min, is placed in heating 20min in boiling water bath, is cooled to 25 DEG C, add the isopropanol of the quality such as supernatant, sedimentation and centrifugation to take precipitation.
D, sterilizing:1 times of precipitation quality of ethanol is added, 30min is stood, ethanol is reclaimed in vacuum distillation.
(2) coating agent:The distilled water of 20g beta-schardinger dextrin -s, 6g ethyl celluloses and 40g is mixed to obtain compound, 100 Stirring in water bath to volume concentration to mixture volume 1/3 at DEG C, after being cooled to room temperature, adds Oleum menthae, the phosphorus of 2.5g of 5g Acid, stirring in water bath 30min at 70 DEG C.
(3) dispensing:Coating agent in step (2) is coated in the precipitation after the sterilizing in step (1) by 1 μm of thickness On, at 35 DEG C, 3min is vibrated under the frequency of vibration of 500 times/min, obtain microcapsule, add 0.05g in 100g daily rations Microcapsule, mix thoroughly.
Described fermentation medium, is made up of following raw material by weight:Beef extract 5g, peptone 1g, Fructus Vitis viniferae Sugared 2.5g, agar 2g, Fructus Schisandrae Chinensis 15g, Herba Epimedii 7g, Semen Trigonellae 8g, Cortex Eucommiae 2g, acetone are some.
Described fermentation medium, be Fructus Schisandrae Chinensis, Herba Epimedii, Semen Trigonellae, the Cortex Eucommiae are weighed in proportion after, smash 20min to pieces, 5~6 times of Chinese medicine gross mass of acetone is added, 38h is impregnated, vacuum distillation is reclaimed acetone, obtains residual solution, add beef leaching Cream, peptone, glucose and agar, mix thoroughly, and it is 25 DEG C that heating adjusts the temperature of culture medium.
Described LiCl, its concentration are 3.1mol/l.
Described ethanol, its concentration are 15%.
Embodiment 5
A kind of preparation method of the CpG ODN for having immune-enhancing activity to pig, comprises the following steps:
(1) CpG ODN volume productions, comprise the following steps:
A, fermentation:CpG ODN plasmids are proceeded in e.colistraindh5α, 36 DEG C, 250rpm concussion and cultivates 2h are obtained greatly Enterobacteria bacterium solution, the volume ratio by 1: 70 are inoculated in fermentation medium, fermentation culture 20h.
B, extraction:Bacterium solution concussion stirring after fermenting in step a, subsequently by the lysozyme mark for adding 60 μ g per ml bacterium solutions Quasi- addition, stirs, and under 35.2 DEG C of water bath with thermostatic control, stirs 12min, subsequently, adds 0.2ml's by every ml bacterium solutions LiCl, under the rotating speed of 10000r/min is centrifuged 8min, takes supernatant.
C, heating:Supernatant in stepb, concussion 15~20min of stirring, is placed in heating 25min in boiling water bath, is cooled to 20 DEG C, the isopropanol of the quality such as supernatant, sedimentation and centrifugation is added to take precipitation.
D, sterilizing:1 times of precipitation quality of ethanol is added, 20min is stood, ethanol is reclaimed in vacuum distillation.
(2) coating agent:The distilled water of 30g beta-schardinger dextrin -s, 6g ethyl celluloses and 35g is mixed to obtain compound, 100 Stirring in water bath to volume concentration to mixture volume 1/3 at DEG C, after being cooled to room temperature, adds Oleum menthae, the phosphorus of 2.5g of 7g Acid, stirring in water bath 30min at 70 DEG C.
(3) dispensing:Coating agent in step (2) is coated in the precipitation after the sterilizing in step (1) by 1 μm of thickness On, at 35 DEG C, 3min is vibrated under the frequency of vibration of 500 times/min, obtain microcapsule, add 0.1g's in 100g daily rations Microcapsule, mixes thoroughly.
Described fermentation medium, is made up of following raw material by weight:Beef extract 5g, peptone 1g, Fructus Vitis viniferae Sugared 2.5g, agar 2g, Fructus Schisandrae Chinensis 15g, Herba Epimedii 4g, Semen Trigonellae 8g, Cortex Eucommiae 4g, acetone are some.
Described fermentation medium, be Fructus Schisandrae Chinensis, Herba Epimedii, Semen Trigonellae, the Cortex Eucommiae are weighed in proportion after, smash 20min to pieces, 5~6 times of Chinese medicine gross mass of acetone is added, 42h is impregnated, vacuum distillation is reclaimed acetone, obtains residual solution, add beef leaching Cream, peptone, glucose and agar, mix thoroughly, and it is 25 DEG C that heating adjusts the temperature of culture medium.
Described LiCl, its concentration are 2.5mol/l.
Described ethanol, its concentration are 20%.
Experimental example
The some heads of pig of healthy growth, disease-free, all ages and classes are randomly selected, two groups are randomly divided into, first group in day Add the present invention to be fed in grain, second group without, Oestrus rate and the litter size to the sow in two groups, piglet is deposited Motility rate and litter weight, the daily gain and meat feed ratio of growing and fattening pigs, are tested and assessed, as a result as shown in table 1, to pig blue-ear disease, bird flu, mouth Fever aphthous, the antibody level of serum of swine fever are evaluated and tested, as a result as shown in table 2:
Table 1
Project First group Second group
The Oestrus rate of sow 75~80% 60~65%
Litter size 12~14 10~12
The survival rate of piglet 86~90% 75~79%
The weight of averagely every piglet 2025.3g 1350.1g
The daily gain of growing and fattening pigs 552.3~613.2g 431.2~479.8g
The meat feed ratio of growing and fattening pigs 2.15~2.37: 1 1.55~1.75: 1
Table 2

Claims (5)

1. a kind of preparation method of the CpG ODN for having immune-enhancing activity to pig, it is characterised in that comprise the following steps:
(1) CpG ODN volume productions, comprise the following steps:
A, fermentation:CpG ODN plasmids are proceeded in e.colistraindh5α, 35~36 DEG C, 250~280rpm concussion and cultivates 2 ~2.5h, obtains Escherichia coli bacteria liquid, and the volume ratio by 1: 70~80 is inoculated in fermentation medium, and fermentation culture 15~ 20h;
B, extraction:Bacterium solution concussion stirring after fermenting in step a, subsequently by the lysozyme mark for adding 50~60 μ g per ml bacterium solutions Quasi- addition, stirs, and under 35.2~35.8 DEG C of water bath with thermostatic control, stirs 8~12min, subsequently, adds by every ml bacterium solutions The LiCl of 0.2~0.3ml, under the rotating speed of 10000r/min is centrifuged 6~8min, takes supernatant;
C, heating:Supernatant in stepb, concussion 15~20min of stirring, is placed in 20~25min of heating in boiling water bath, is cooled to 20~25 DEG C, the isopropanol of the quality such as supernatant, sedimentation and centrifugation is added to take precipitation;
D, sterilizing:1~1.5 times of precipitation quality of ethanol is added, 20~30min is stood, ethanol is reclaimed in vacuum distillation;
(2) coating agent:The distilled water of 20~30 parts of beta-schardinger dextrin -s, 6~8 parts of ethyl celluloses and 35~40 parts is mixed and must be mixed Material is closed, stirring in water bath to volume concentration to mixture volume 1/3 at 100 DEG C, after being cooled to room temperature, adds 5~7 parts thin Lotus oil, 2.5~3 parts of phosphoric acid, 20~30min of stirring in water bath at 70 DEG C;
(3) dispensing:Coating agent in step (2) is coated in the precipitation after the sterilizing in step (1) by 1~1.5 μm of thickness On, at 35~40 DEG C, 3~4min is vibrated under the frequency of vibration of 400~500 times/min, obtain microcapsule, 100 parts of days Add 0.05~0.1 part of microcapsule in grain, mix thoroughly.
2. the preparation method of the CpG ODN of immune-enhancing activity is had to pig as claimed in claim 1, it is characterised in that described Fermentation medium, be made up of following raw material by weight:Beef extract 4~5, peptone 1~2, glucose 2.5~4, Agar 1~2, Fructus Schisandrae Chinensis 10~15, Herba Epimedii 4~7, Semen Trigonellae 8~12, the Cortex Eucommiae 2~4, acetone are some.
3. the preparation method of the CpG ODN of immune-enhancing activity is had to pig as claimed in claim 1 or 2, it is characterised in that institute The fermentation medium that states, be Fructus Schisandrae Chinensis, Herba Epimedii, Semen Trigonellae, the Cortex Eucommiae are weighed in proportion after, smash 20~25min to pieces, in addition The acetone of 5~6 times of medicine gross mass, impregnate 38~42h, vacuum distillation reclaim acetone, obtain residual solution, add beef extract, Peptone, glucose and agar, mix thoroughly, and it is 25 DEG C that heating adjusts the temperature of culture medium.
4. the preparation method of the CpG ODN of immune-enhancing activity is had to pig as claimed in claim 1, it is characterised in that described LiCl, its concentration be 2.5~3.1mol/l.
5. the preparation method of the CpG ODN of immune-enhancing activity is had to pig as claimed in claim 1, it is characterised in that described Ethanol, its concentration be 15~20%.
CN201610938491.3A 2016-10-31 2016-10-31 A kind of preparation method of the CpG ODN for having immune-enhancing activity to pig Pending CN106490361A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110042103A (en) * 2019-03-25 2019-07-23 华南农业大学 A kind of pair of pig has CpG-ODN and its application of specific immunity stimulation
CN112080505A (en) * 2020-07-23 2020-12-15 杭州华缔集团有限公司 CG island oligonucleotide with piglet immunostimulation capacity and application thereof in feed additive

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