Microbial inoculants reshape structural distribution of complex components of humic acid based on spectroscopy during straw waste composting

[Display omitted] •Actinomycetes increased the degradation rate of straw compost by nearly 15%.•Actinomycetes promoted the transformation from fulvic acid to humic acid.•Actinomycetes reshape the compositional features of humic acid.•Structural distribution of humic acid is a key factor affecting hu...

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Veröffentlicht in:	Bioresource technology 2022-09, Vol.359, p.127472-127472, Article 127472
Hauptverfasser:	Chen, Yufeng, Zhao, Ran, Jia, Liming, Wang, Liqin, Pan, Chaonan, Zhang, Ruju, Wei, Zimin
Format:	Artikel
Sprache:	eng
Schlagworte:	Actinobacteria Actinomycetes inoculation Composting composts fluorescence fulvic acids humic acids Humic-like substances humification Parallel factor analysis spectral analysis spectroscopy straw Straw waste treatment structural equation modeling technology variance
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Zusammenfassung:	[Display omitted] •Actinomycetes increased the degradation rate of straw compost by nearly 15%.•Actinomycetes promoted the transformation from fulvic acid to humic acid.•Actinomycetes reshape the compositional features of humic acid.•Structural distribution of humic acid is a key factor affecting humification. This study aimed to explore the mechanism of actinomycetes inoculation to promote humification based on spectroscopy during straw waste composting. Results showed that inoculating actinomycetes could significantly increase the humification index and humification ratio, which were 2.53% and 21.79% respectively (P
ISSN:	0960-8524 1873-2976
DOI:	10.1016/j.biortech.2022.127472