Bifidobacterium pseudocatenulatum CCFM1048, composition, fermented food, application and bacterial agent of bifidobacterium pseudocatenulatum CCFM1048 and preparation method of bacterial agent of bifidobacterium pseudocatenulatum CCFM1048
A bifidobacterium and fermented food technology, applied in the field of microorganisms, can solve the problems of irritating the gastrointestinal tract, liver function damage, affecting patients, etc., and achieve the effect of alleviating weight gain, alleviating metabolic syndrome, and reducing the lower area
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Embodiment 1
[0084] Example 1: Bifidobacterium CCFM1048 has good tolerance to simulated gastrointestinal fluid The frozen Bifidobacterium CCFM1048 is inoculated in mMRS medium (MRS medium+0.05% cysteine salt In salt), anaerobic culture at 37°C for 48 hours, and subcultured by mMRS culture medium for 2 to 3 times, 1 mL of the culture liquid of Bifidobacterium pseudospermia CCFM1048 was mixed with 9.0 mL of pH 2.5 artificially simulated gastric juice (containing 1% pepsin, mMRS medium with pH=2.5) were mixed, and cultured anaerobically at 37°C, samples were taken at 0h, 0.5h, 1h and 2h respectively, poured and cultured with mMRS agar medium, plate colonies were counted, and determined The number of viable bacteria was counted and their survival rate was calculated.
[0085] The survival rate is the ratio of the logarithmic value of the number of viable bacteria at the time of sampling to the logarithmic value of the number of viable bacteria at the time of 0h in the culture fluid, expresse...
Embodiment 2
[0090] Example 2: Bifidobacterium pseudosmall chain CCFM1048 has no toxic and side effects on C57BL / 6J mice Bifidobacterium pseudosmall chain CCFM1048 bacterium was resuspended in 3% sucrose solution to make a concentration of 3.0 × 108 CFU / mL bacteria Suspension. Get 6 healthy male C57BL / 6J mice with a body weight of about 20g. After acclimating to the environment for a week, give the bacterial suspension of this concentration orally once a day, observe for a week, and record the death and body weight.
[0091] The results of these tests are listed in Table 3. These results show that feeding concentration of 3.0 × 108CFU / mL of pseudo small chain Bifidobacterium CCFM1048 does not cause significant impact on mice, body weight does not change significantly, and no death occurs. The appearance of the mice had no obvious pathological symptoms.
[0092] Table 3 Changes in body weight and death of mice
[0093]
[0094] Note: -: no death of mice
Embodiment 3
[0095] Embodiment 3: Pseudosmall chain Bifidobacterium CCFM1048 has recovery effect to the intestinal flora disorder caused by high-fat feed
[0096] 36 healthy male C57BL / 6J mice weighing 18-20 g were taken, adapted to the environment for 1 week, and randomly divided into 6 groups: blank control group (NC), high-fat model control group (HFD), simvastatin control group (SC ), rosiglitazone control group (RH), Bifidobacterium pseudospermia CCFM1048 intervention group (CCFM1048), Bifidobacterium animalis BB12 control group (BB12), each group contained 6 mice, and the bacteria suspension The dose is 3.0×108CFU / mL, resuspended in 3% sucrose solution. The grouping and treatment methods of experimental animals are shown in Table 4:
[0097] Table 4 Grouping of experimental animals
[0098]
[0099] The body weight of the mice was monitored regularly during the experiment.
[0100] At the end of the experiment, the fresh feces of the mice were collected and frozen at -80°C, the...
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