一种用于清除水体亚硝酸盐的微生态复合调节剂

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中图分类号：Q938.1 文献标志码：A

A Microecological Compound Regulator for Removing Nitrite in Water Bodies

CHEN Jiaxuan  ， ZHANG Yannan'， CHEN Haoran  ， SHI Guizhi  ， GU Jinsong  （1.School of Biological Science and Technology，University of Jinan，Jinan 25Oo22，Shandong，China;2. Shandong Shinva Saraya Biotechnology Co.，Ltd.， Zibo 2553Oo，Shandong，China；3.Institute of Biophysics，Chinese Academy of Sciences，Beijing 1Oo1O1，China）

Abstract：Toaddresstheproblems of diseasesand mortalityinaquaticanimals caused byelevated nitritelevels inintensive aquaculture water，basedon thenitrite-reducing principle wherenitritereductase canspecificallyand ficiently degrade nitrite intonitrogen gas or ammonium salts，using the microecological preparationsproducing nitritereductaseas the composite regulator，amicroecological composite regulatorcontaining acomposite fermentation broth and anenzymebased stable mixture wasdeveloped.The degradation eficiencyand action pathwayof the microecological composite regulatoronnitrite wereevaluated bydetecting nitriteconcentration，determiningnitritereductaseactivity，andcounting the number of nitrite reductase-producing colonies.The results show that when the microecological composite regulator， prepared by mixing the composite fermentation broth and the enzyme-based stable mixture at a volume ratio of 3：1 ，is added to nitrite-containing water， it can significantly reduce the nitrite content in water within 36h ，increase the nitrite reductase activity by 61.67% ，and improve the survival rate of beneficial bacteria such as Lactobacillus plantarum in water by 4 times.

Keywords： microecological compound regulator； compound fermentation； nitrite reductase； nitrite

随着人们对水产品消费需求的日益增长，水产养殖业逐渐发展成高密度、集约化模式。（剩余8509字）