Appraisal of lignocellusoic biomass degrading potential of three earthworm species using vermireactor mediated with spent mushroom substrate: Compost quality, crystallinity, and microbial community structural analysis

摘要: Abstract Spent mushroom substrate (SMS) is a recalcitrant lignocellulosic waste. Recycling of SMS through composting has been reported; however, the process lengthy due to its complex biochemical composition. Although vermitechnology known for high efficiency, it rarely applied recycle SMS. In this study, qualitative value vermicomposted mediated by three earthworm species (i.e., Eisenia fetida, Eudrilus eugeniae, and Perionyx excavatus) was evaluated on basis nutrient availability, microbial activity, phospholipid fatty acid (PLFA) profiles, seed germination assays. Degradation profiles in vermireactors were assessed monitoring changes crystallinity distribution functional groups using X-ray diffraction (XRD) Fourier transform infrared spectroscopy, respectively. Total organic carbon decreased 1.4–3.5 folds with approximately 2.1–2.4 increase nitrogen phosphorus availability all vermibeds. Interestingly, pH declined systems but increased Perionyx-vermibeds. XRD-derived index reduced significantly 1.37 Perionyx-vermicompost concurrent enrichment. Further, profuse abundance vital (C O, NH, OH) clearly observed vermicompost followed that Eisenia. Moreover, PLFA illustrated significant variations distributions communities vermicomposting systems. The assay showed relative root-shoot vigor treated seeds 1.05–1.30 times greater than those ones. results suggest degradability affected growth healthy community vermicomposting.