Daldinia childiae and application thereof in preparation of bacterium grain wood

Abstract

The invention discloses Daldinia childiae L2Ma and application thereof in preparation of bacterium grain wood, belonging to the technical field of microorganisms. The strain is collected in China General Microbiological Culture Collection Center; the address is No.3, Yard 1, Beichen West Road, Chaoyang District, Beijing City; and the collection number is CGMCC No:5954. The strain has excellent impregnation capability for a wood-based material, the impregnation time is short, and the impregnation depth is large; beautiful colors and grains can be formed on the surface of the material; and the physical mechanical strength is not influenced. A method for preparing a bacterium grain wood by using the strain comprises the steps of strain activation, expanding propagation and inoculation culture; and the method comprises the following specific steps: inoculating the strain on an activation and expanding propagation culture medium, performing activation and expanding propagation at 22-30 DEG C for 7-15 days, sterilizing the wood-based material, enabling the wood-based material to be sufficiently in contact with the strain subjected to activation and expanding propagation, and culturing at 22-30 DEG C for 6-8 weeks. According to the invention, the method is reasonable in process and simple to operate; and the prepared bacterium grain wood has favorable decoration effect and has no influence on the physical mechanical property of the base material, thereby being beneficial to large-scale production and popularization.

Description

technical field [0001] The invention belongs to the technical field of microbes, and in particular relates to a fungus strain of the genus Anthroporum which has a short infection time and large depth, beautiful color and texture, and has no influence on the physical and mechanical strength of wood-based materials and its use in the preparation of fungus-grained wood. Applications. Background technique [0002] The fungal discoloration of wood has long been regarded as a defect of wood, which reduces the value of wood. In fact, fungal discoloration, such as lines and stains, has natural and unique characteristics. When the decay is not serious A wonderful touch. If this kind of wood with natural lines or colors is used to make handicrafts, such as vases, earrings, pens, wood veneers, etc., the added value of wood can be increased. The fungus wood with natural patterns and colors will be popular in the market, especially in the decoration, decoration and handicraft markets. ...

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Problems solved by technology

[0003] However, the naturally obtained fungal wood still has the following deficiencies: 1. The raw materials are not easy to obtain, and there is a strong chance, because the natural fungal wood can only be formed in nature when there are bacteria that can form the fungal wood. , so only a small amount of fungal wood can be found in dead branches and fallen trees in a small number of forests; 2. Natural fungal wood takes a long time to form and is affected by many climate and environmental factors, such as dryness, cold, lack of oxygen, strong sunlight, Other microbial interference, etc.; 3. Natural fungal wood is formed under natural conditions, and there is often the problem of excessive infection of certain bacteria on wood-based materials, resulting in serious loss of strength of the material, which cannot be processed and used, or the permeability is significantly increased. , Excessive inhalation of chemicals will be inhaled during post-treatment such as anti-corrosion and flame-retardant, which will double the cost; 4. Natural fungal grain wood is formed under natural conditions, and the size and shape of the wood are unpredictable, and the beautiful lines may be lost during processing 5. Natural fungus wood is formed under natural conditions and is susceptible to insect pests or other fungal infections, making the wood incomplete or forming unsightly decay or discoloration

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