Preparation for resisting helicobacter pylori and relieving gingivitis and application thereof
An anti-Helicobacter pylori and Helicobacter pylori technology is applied in the field of oral care to achieve the effects of reducing plaque index, reducing bleeding gums and reducing side effects
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[0026] 1. Determination of hydrophobicity and self-aggregation ability of lactic acid bacteria strains
[0027] The activated lactic acid bacteria cells were collected by centrifugation, washed with physiological saline, and the concentration of the bacterial suspension was adjusted so that the absorbance value at 600nm wavelength was about 1.000.
[0028] Take 2mL of bacterial suspension, mix with 2mL of xylene, vortex for 20min, let stand at room temperature for 30min, take 1mL of water phase, use normal saline as blank control, measure the absorbance value at 600nm, and calculate the surface hydrophobicity (CSH%) of the strain: H%=[(A 0 -A 1 ) / A 0 ]*100% (where A 0 and A 1 are the absorbance values measured at 600 nm of the aqueous phase before and after mixing with xylene, respectively).
[0029] Take 4mL of bacterial suspension in the same type of test tube, let it stand at room temperature, absorb 1mL of the upper layer solution after 1, 3, and 5 hours to measure ...
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