Abstract: The proposal of using Cenchrus fungigraminus juice to enrich microorganisms and conducting in-situ fermentation to form a microbial degrading agent, namely Chuyubao FWMDA-001, has been put forward in this study, which is used for the microbial degradation of kitchen waste.The identification results of Chuyubao FWMDA-001 showed that there were abundant degrading microorganisms (34 species). Under the same conditions (outdoor temperature 20 ℃), the effect of adding or non-adding bactericide on the treatment of kitchen waste was significantly different. After treatment time of 60 h, the degradation rate of ordinary garbage can without bacterial agents was 10.66%±0.73%, while that of the group with bacterial agents was 15.33%±1.21%, and the degradation rate of adding bacteria agents group was 43.80% higher than that of group without bacteria agents. The degradation rate of the smart garbage can without bacteria agents was 33.33%±2.98%, while that of the group with bacterial agents was 99.33%±10.50%, and the degradation rate of adding bacteria agents group was increased by 199.33% compared with the non-bacteria group.The microbial agent product (Chuyubao FWMDA-001) produced in this research with the advantages of low cost, abundant sources, complementary microbial communities and stable effect, could provide a stable and reliable source of microbial agents for kitchen waste treatment. When using in conjunction with smart trash cans, Chuyubao FWMDA-001 can achieve efficient treatment of kitchen waste such as deodorization, sterilization, anti-corrosion, and reduction. Meanwhile, the kitchen waste can be fermented and converted into organic fertilizer for agricultural production by this bacteria agent, which has certain application prospects.

Key words: kitchen waste, juice of Cenchrus fungigraminus, microbial degradation, complex microbial agent