Fungus capable of degrading multiple types of dyes under non-sterilization condition and application thereof

Abstract

The invention belongs to the technical field of industrial microorganism, and in particular relates to fungus capable of efficiently degrading multiple types of dyes under non-sterilization condition. Microorganism from the soil of a phyllostachys praecox forest in Hangzhou Lin'an is separated on a PDA culture medium by a gradient dilution method and is subjected to laboratory screening, so that the important fungus-trichaptum abietinum 1302BG capable of efficiently degrading multiple types of dyes under the non-sterilization condition is obtained. The strain can decolorize multiple types of dyes, has wide pH adaptability, has low requirement on nutrient components of the culture medium, and still has efficient decolorization under the non-sterilization condition even the condition of artificially added with certain other microorganism pollution source. Dye solution decolorized by the strain does not have toxicity or the toxicity is largely reduced. The excellent characteristics show that the strain has high treatment and application capability for industrial dye wastewater.

Description

1. Technical field [0001] The invention belongs to the technical field of industrial microbes, and in particular relates to a fungus capable of degrading various types of dyes under the conditions of non-sterilization and low-cost and simple nutrient medium. 2. Background technology [0002] Synthetic dyes are widely used in textile, food, medicine, leather, cosmetics and other industries. It is estimated that the total production of dyestuffs per year is about 7×10 5 Tons, my country's annual output has reached 150,000 tons, of which about 10% to 15% of dyes will be directly discharged into the environment along with wastewater. There are many dyes used in industry, such as azo, triphenylmethane, anthraquinone and so on. Many dyes and their decomposition products are toxic and can cause cancer and distortion. If printing and dyeing wastewater is discharged directly into rivers without treatment, it will inevitably cause serious environmental pollution. [0003] Syntheti...

AI Technical Summary

Problems solved by technology

Although the existing solutions can partially overcome the decline in the decolorization ability of fungi caused by other microbial contamination, they are still far from the actual application cost

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