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The bioaugmentation effect of microbial inoculants on humic acid formation during co-composting of bagasse and cow manure.
Lu, Mengling; Hao, Yuhao; Lin, Binfeng; Huang, Zhi; Zhang, Yu; Chen, Liang; Li, Kai; Li, Jianbin.
Afiliação
  • Lu M; College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China.
  • Hao Y; College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China.
  • Lin B; College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China.
  • Huang Z; College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China.
  • Zhang Y; College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China.
  • Chen L; College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China.
  • Li K; College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China.
  • Li J; College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, Guangxi, China; Academy of Sugarcane and Sugar Industry, Guangxi University, Nanning 530004, Guangxi, China. Electronic address: lijb0771@sina.com.
Environ Res ; 252(Pt 1): 118604, 2024 Jul 01.
Article em En | MEDLINE | ID: mdl-38548254
ABSTRACT
The effective degradation of recalcitrant lignocellulose has emerged as a bottleneck for the humification of compost, and strategies are required to improve the efficiency of bagasse composting. Bioaugmentation is a promising method for promoting compost maturation and improving the quality of final compost. In this study, the bioaugmentation effects of microbial inoculants on humic acid (HA) formation during lignocellulosic composting were explored. In the inoculated group, the maximum temperature was increased to 72.5 °C, and the phenol-protein condensation and Maillard humification pathways were enhanced, thus increasing the HA content by 43.85%. After inoculation, the intensity of the microbial community interactions increased, particularly for fungi (1.4-fold). Macrogenomic analysis revealed that inoculation enriched thermophilic bacteria and lignocellulose-degrading fungi and increased the activity of carbohydrate-active enzymes and related metabolic functions, which effectively disrupted the recalcitrant structure of lignocellulose to achieve a high humification degree. Spearman correlation analysis indicated that Stappia of the Proteobacteria phylum, Ilumatobacter of the Actinomycetes phylum, and eleven genera of Ascomycota were the main HA producers. This study provides new ideas for bagasse treatment and recycling and realizing the comprehensive use of resources.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Compostagem / Celulose / Substâncias Húmicas / Esterco Limite: Animals Idioma: En Revista: Environ Res Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Compostagem / Celulose / Substâncias Húmicas / Esterco Limite: Animals Idioma: En Revista: Environ Res Ano de publicação: 2024 Tipo de documento: Article País de afiliação: China