An acid-alkali-resistant, alcohol-resistant strain of Lanxiella sugarcane and its application

Abstract

The invention discloses a strain of Laceyella sacchari CP which is acid-alkali-resistant and alcohol-resistant and rapidly decomposes distiller's grains, and its preservation number is: CGMCC NO.13928. The Lanciella sugarcane can grow in the range of 30-75°C, the optimum growth temperature is 60°C, and can produce various degradative enzymes such as protease and lipase; the alcohol content (V / V) is 1-13% It grows well with solid and liquid media with a pH value of 3-12, which is very suitable for the current dynamic high-temperature decomposition process characteristics of "pH value from low to high, alcohol content from high to low and then high" of liquor distiller's grains, without the need for distiller's grains The method of lowering the alcohol content and reducing the acidity reduces the processing procedures, saves manpower, material resources, financial resources and time, reaches 55°C in 1 day, reaches 85°C in 3 days, maintains 83-85°C for 3 days, and the fermentation cycle is only 15-16 days. It effectively improves the yield and quality of organic fertilizers, prevents secondary pollution and soil alkalinization of distiller's grains, protects the environment and soil, and opens up a new shortcut for the production of high-quality organic fertilizers by direct high-temperature composting of liquor distiller's grains.

Description

technical field [0001] The invention relates to distiller's lees decomposing bacteria, in particular to an acid-alkali-resistant and alcohol-resistant strain of Lancia saccharum rapidly decomposing distiller's grains and its application. Background technique [0002] Distiller's grains are the direct leftovers in the brewing process. At present, more than 50 million tons of distiller's grains need to be processed in my country. Therefore, people have been paying attention to the problem of disposing of distiller's grains after fermentation. Liquor distiller's grains are easily fermented and corrupted, and emit stench and easily pollute the environment. Because it contains a lot of crude fat, crude starch, crude protein and rich in nitrogen, phosphorus, potassium and polysaccharides, it is an excellent source of organic fertilizer. Therefore, the use of distiller's grains to make organic fertilizers can not only solve environmental problems, turn waste into treasure, but als...

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Problems solved by technology

[0013] The actinomycetes disclosed in the above-mentioned patent documents have low acid and alkali resistance, poor alcohol resistance, and unsatisfactory temperature resistance, and are still not suitable for direct high-temperature composting of liquor distiller's grains

[0014] In summary, although there are many high-temperature decomposing bacteria on liquor distiller's grains disclosed, regardless of single-bacteria fermentation or mixed-bacteria fermentation, it is necessary to reduce the alcohol content and acidity of the distiller's grains. The process is complicated and wastes manpower, material resources, financial resources and time. , also can cause secondary pollution corruption and soil alkalization of distiller's grains at the same time, pollute environment, and, along with the carrying out of high-temperature decomposing process, the pH value of distiller's grains increases, continues to ferment, and alcohol content can continue to increase (3-6% )

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