Effects of exogenous protein-like precursors on humification process during lignocellulose-like biomass composting: Amino acids as the key linker to promote humification process

Bioresource Technology
Zhechao ZhangLiqin Wang

Abstract

The aim of this study is to assess the effectiveness of protein-like precursors addition on promoting humification process during lignocellulose-like biomass composting through adding amino acids to compost. The humification indexes of R1 and R2 was significantly higher than that of CK (P < 0.05). The decreasing ratio of Maillard precursor concentration of R2 and R1 was higher than CK. Amino acids addition affected the bacteria community and environmental factors during composting. Variance partitioning analysis showed that humification process was strengthened with environmental factors, bacteria community, Maillard precursors. Structural equation model (SEM) analysis showed that amino acids had substantial impact on promoting humic acid (HA) formation. The combined application of protein-like wastes and lignocellulose-like wastes was suggested to improve carbon sequestration. This study lays a foundation for economically and effectively managing different types of straws by composting.

Citations

Jul 20, 2020·Environmental Science and Pollution Research International·Chao ZhuFan Li
Oct 21, 2020·The Science of the Total Environment·Yuquan WeiQing Chen
Mar 12, 2021·Journal of Agricultural and Food Chemistry·Zhechao ZhangWei Guo
Jul 24, 2021·Bioresource Technology·Zejin ZhangXiaoyong Cui
Jul 26, 2021·The Science of the Total Environment·Jelena AvdalovićMiroslav M Vrvić
Aug 8, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Jiawei LuFeng Wang
Aug 21, 2021·Bioresource Technology·Zhicheng XuWenhai Luo

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