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Bifidobacterium longum belongs to Lactobacillus, Gram-positive bacteria, no plasmid, no spore, no flagella, no movement, strict anaerobic bacteria, pg-blc107 is the enterprise strain number

Product No.: pg-blc107

Product classification functional probiotic powder

I. Basic Information

Bifidobacterium longum belongs to Lactobacillus, Gram-positive bacteria, no plasmid, no spores, no flagella, no movement, strict anaerobic bacteria.

II. Product specifications

Active lactic acid bacteria content ≥ 10 billion CFU / g, powder, aluminum foil bag, 1kg / bag

III. size and colony morphology

1. Under the large and small microscope, it is generally 0.9-1.2 um long and 0.4-0.6 um wide, usually in irregular forms such as Y-shaped, V-shaped or curved, as shown in the figure.

2. Colony morphology: the colony is round, convex and smooth, the edge is neat and opaque, and the colony is white or milky white.

4: Suitable for growth environment

1 the optimum growth temperature of Bifidobacterium longum is 36-38 ℃, the growth temperature range is 20-45 ℃, the pH value range is 6.5-7.0, and it generally does not grow below pH value 4.5-5.0 or above pH value 8.0-8.5.

2. This strain is a strict anaerobic bacterium without contact enzyme activity. Its tolerance to oxygen varies with the passage times. When there is oxygen, a small amount of contact enzyme is activated to remove a small amount of hydrogen peroxide, and the presence of hydrogen peroxide will destroy the enzymes produced by carbohydrate metabolism, resulting in difficult growth of the strain.

5: Growth characteristics

1. Culture characteristics: it can be cultured in the laboratory with MRS medium.

2 biochemical characteristics: Bifidobacterium longum will not produce carbon dioxide, propionic acid and butyric acid in the process of carbohydrate metabolism, but also produce a small amount of formic acid and succinic acid with acetic acid and lactic acid as the main metabolites; It can decompose the indigestible fiber or glycan in the human intestine and produce a large amount of acid to inhibit harmful bacteria.

6: Product information:

[executive standard] Q / pgjk0001s

[food production license No.] sc10637082900938

[shelf life] the shelf life is 24 months

[storage and transportation] the product is stored at - 18 ℃ or lower, and needs to be sealed and protected from light. The shelf life is 24 months.

[packaging] the products are packaged in high barrier composite aluminum foil bags, with packaging specifications of 1kg / package, 5kg / package, or according to customer needs.