Bifidobacterium lactis M8 separated from breast milk and application thereof
A technology of Bifidobacterium lactis and breast milk, applied in the field of microorganisms, can solve problems such as complex flora structure, and achieve the effects of ensuring flavor, increasing added value, and regulating the high intestinal flora.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0059] The identification of embodiment 1 Bifidobacterium lactis M8
[0060] a. Strain activation method
[0061] Introduce a newly isolated strain into MRS liquid medium, culture at 37°C for 24 hours, subculture for 3 generations, restore the vitality of the strain, and dilute the strain to obtain 10 -1 ~10 -7 Dilute the gradient, pipette 200μL of 10 -4 、10 -5 、10 -6 、10 -7 Gradient dilution, spread evenly on the MRS solid medium plate, and culture anaerobically at 37°C for 48-72h. Single clones with different shapes, sizes and colors were picked and inoculated in liquid medium, and cultured in a constant temperature incubator at 37°C for 24 hours. After the strain grows well, carry out Gram staining and microscopic examination, save the isolate, and extract the genomic DNA of the strain for subsequent analysis.
[0062] Wherein the composition of the MRS medium is: soybean peptone 10g, beef extract 5g, yeast powder 5g, glucose 20g, Tween80 1ml, sodium dihydrogen pho...
Embodiment 2
[0091] Example 2: Application of BifidobacteriumLactis M8 in low-temperature stirring fermented milk
[0092] The preparation method of stirred fermented milk is as follows:
[0093] Heat fresh milk to 55-60°C, add 8wt% white sugar, stir until completely dissolved, preheat to about 65°C, homogenize under 20Mpa pressure, sterilize at 95°C for 5 minutes, cool to 35°C, inoculate basic starter YF -L904 and Bifidobacterium lactis M8, wherein the inoculation amount of Bifidobacterium lactis M8 is 7×10 6 cfu / mL. The pH value of the fermentation end point is 4.5, after fermentation to the end point of fermentation, it is cooled, placed at 4° C. for 12 hours after ripening, and fermented milk containing active Bifidobacterium lactis M8 is obtained.
[0094] The fermented milk was stored at 4°C for 21 days, and appropriate samples were taken every 7 days to detect changes in the number of viable bacteria, pH value and titrated acidity. The results are shown in Table 2.
[0095] Table...
Embodiment 3
[0098] Implementation 3 Application of Bifidobacterium LactisM8 in low-temperature drinking yoghurt
[0099] The preparation method of low-temperature drinking-type fermented milk is as follows:
[0100] Heat fresh milk to 55-60°C, add 8wt% white sugar, stir until completely dissolved, preheat to about 65°C, homogenize under 20Mpa pressure, sterilize at 95°C for 5 minutes, cool to 35°C, inoculate the basic starter YF -L904 and Bifidobacterium lactis M8, wherein the inoculation amount of Bifidobacterium lactis M8 is 7×10 6 cfu / mL. The end point of fermentation is pH=4.5. After fermentation to the end point of fermentation, cool down and perform secondary homogenization under sterile conditions. The homogenization conditions are primary pressure 5Mpa, secondary pressure 15Mpa, and then placed at 4°C for post-ripening for 12 hours, that is Low-temperature drinking yoghurt containing active bifidobacterium lactis M8 was obtained.
[0101] The prepared low-temperature drinking...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com