Bacteriostatic agent containing lignite extracting solution as well as preparation method and application of bacteriostatic agent
The technology of extracting liquid and bacteriostatic agent is applied in the field of bacteriostatic agent containing lignite extract and its preparation, which can solve the problems of large toxic and side effects, strong irritation of chemical bacteriostatic agent, influence on heating efficiency, etc., and achieve the effect of no erosion.
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Embodiment 1
[0036] A kind of bacteriostatic agent containing lignite extract of the present embodiment is compounded with lignite extract and polyhexamethylene biguanide hydrochloride as raw materials, wherein the content of polyhexamethylene biguanide hydrochloride by weight is 0.04%-0.2%. Tests have shown that the combination of lignite extract and polyhexamethylene biguanide hydrochloride has the effect of improving the quality and synergizing the antibacterial effect.
[0037] The lignite extract in this embodiment includes short-chain fatty acids, acetic acid and plant polyphenols. Wherein the lignite extract contains 0.01%-0.06% acetic acid, and contains 0.3-0.6mg plant polyphenol per liter. Specifically, the lignite extraction liquid can be extracted through equipment for upgrading and drying lignite, a distillation process or a semi-distillation process; the lignite extraction liquid is a liquid obtained by extracting the middle part after static storage for a period of time.
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Embodiment 2
[0064] The preparation method of the antibacterial agent of the present embodiment is:
[0065] (1) the lignite extract was stored statically for 2 months;
[0066] (2) extract the middle part as mother liquor;
[0067] (3) Add 0.04% polyhexamethylene biguanide hydrochloride in the mother liquor;
[0068] (4) Stand still for 15 hours;
[0069] (5) Remove the filter residue with a 200-mesh centrifugal filter to obtain a bacteriostatic agent.
Embodiment 3
[0071] The preparation method of the antibacterial agent of the present embodiment is:
[0072] (1) the lignite extract was statically stored for 2.5 months;
[0073] (2) extract the middle part as mother liquor;
[0074] (3) Add 0.1% polyhexamethylene biguanide hydrochloride in the mother liquor;
[0075] (4) Stand still for 20 hours;
[0076] (5) Remove the filter residue with a 200-mesh centrifugal filter to obtain a bacteriostatic agent.
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