Evaluation of rumen bacteria bioactivator consortium from Bali cattle for enhancing agricultural waste composting
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Abstract
The significant differences in cellulose and lignin content were observed in week four, with oil palm waste compost showed the highest content, followed by coffee husk waste and Melastoma. Microbial activity led to notable reductions in cellulose and lignin on week 8 across all waste types, although oil palm waste still retained the highest content. The significant reduction in the C/N ratio indicated continuing microbial decomposition and nitrogen mineralization. At week 8, the greatest nitrogen content was observed in oil palm waste, while both Melastoma and coffee husk waste exhibited similar nitrogen content. There was insignificant effect of LMO concentration on cellulose, lignin, pH, C, N, C/N ratio, or micronutrient content, indicating the effectiveness of Rumen Bacteria Bio-activator Consortium (RBBC) for organic matter decomposition. The pH for all waste types increased during the decomposing with Melastoma compost had the highest pH. In general, the study showed that the RBBC effectively increased the activity of microbes and the decomposition of lignocellulosic materials, even though LMO concentration primarily had negligible effect on the composting results. This study results highlight the contribution of waste type and microbial consortia for composting. Also, RBBC has high potential in agricultural waste management.
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