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International Journal of Zoology and Applied Biosciences Research Article
Enhancement of humus composition by earthworms during biotransformation of coffee pulp amended with sugar industrial waste
A. Mary Helitha and S. Manivannan
Year : 2018 | Volume: 3 | Issue: 1 | Pages: 82-88
Received on: 11/24/2017
Revised on: 02/05/2018
Accepted on: 02/08/2018
Published on: 02/11/2018
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A. Mary Helitha and S. Manivannan( 2018).
Enhancement of humus composition by earthworms during biotransformation of coffee pulp amended with sugar industrial waste
. International Journal of Zoology and Applied Biosciences, 3( 1), 82-88.
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Abstract
The aim of this work was evaluate the enhancement of humus composition by exotic Eisenia fetida and an indigenous Perionyx excavatus during biotransformation of coffee pulp (CP) amended with sugar industrial wastes press mud (SPM) and bagasse (SBG). In the present study, the CP was amended with SPM and SBG at different proportions, kept for pre-treatment for 7 days and subsequently vermicomposted for a period of 90 days under laboratory conditions. The vermicompost were sampled at 30, 60 and 90 days for the evaluation of sequential changes in humus composition (humic acid, fulvic acid, humification index and humic carbon). The results were revealed that humic acid content in the vermicompost of both species of worms were significantly altered than initial substrate and natural compost. In contrast, fulvic acid and humic carbon content decreased during vermicomposting process. However, among the different treatments TE1, TE2 and TE3 treatments for E. fetida and TP7, TP8 and TP9 for P. excavatus treatments showed significantly (p<0.05) higher level of humic acid (HA) and humification index (HI) and reduction of fulvic acid (FA) and humic carbon (HC) content than other treatments of both worms and treatments without earthworms. Further, the results also suggested that treatments without earthworm did not show any significant effect on the activities of humus composition than vermicomposting.
Keywords
Sugar industry waste, Coffee pulp, Vermicomposting, Humification process.
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© The Author(s) 2025. This article is published by International Journal of Zoology and Applied Biosciences under the terms of the Creative Commons Attribution 4.0 International License (creativecommons.org), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
