Abstract
As bulking agents，maize stalks，rice stalks，rape stalks and wheat stalks were composted with food waste，and the related physicochemical properties were analyzed to understand the maturity and stability of the final composts．The microbial community at different stages of composting were studied by high-throughput sequencing technology． Results show that the compost groups without adding bulking agents fail to meet the maturity standard after a 35 days′ incubation according to the compost maturity requirements． In contrast，all the compost products aided with different bulking agents in four groups could meet the compost maturity requirements．The addition of bulking agents could promote the enrichment of Proteobacteria and Bacteroidetes，which are responsible for the degradation of cellulose． At the end of composting，microbial communities in four groups of bulking agents，namely Cellvibrio and Saccharomonospora could be noted in the final compost，showing the capability of decomposing cellulose and other insoluble organic components． Compared with the initial stage of composting，after adding maize stalks，the relative abundance of metabolic sequences of amino acids in the maturity stage is increased by 8.9%． Moreover，the increase of proline content is the highest，showing an increase to 129.69
| Translated title of the contribution | Study on proteinaceous components conversion and microbial community during composting of food waste added by straw bulking agents |
|---|---|
| Original language | Chinese (Simplified) |
| Pages (from-to) | 83-96 |
| Number of pages | 14 |
| Journal | Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) |
| Volume | 50 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2022 |
| Externally published | Yes |