Impact of fungal pretreatment on methane enhancement and microbiome dynamics in the anaerobic digestion of floral waste

IF 5.8 2区生物学 Q1 AGRICULTURAL ENGINEERING Biomass & Bioenergy Pub Date : 2025-03-21 DOI:10.1016/j.biombioe.2025.107817

Kailash Pati Pandey, Abhishek S. Dhoble

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Abstract

Flowers are used all over the world, but because of their low shelf life, they are usually discarded after one-time use. Despite the huge amount of waste generation, its management is scarce. This study explores the anaerobic digestion of floral waste and assesses the impact of fungal pretreatment on the process, which is very less explored. Floral waste pretreated with the fungus Trichoderma longibrachiatum produced methane peak on day 9, while in positive control, methane peak was reported on day 18. Till day 9, fungal-treated floral waste produced 168.37 % more methane than the positive control. By metagenomic analysis, the fungal pretreated sample was revealed to have higher microbial diversity, and it was observed to have a higher abundance of Clostridium and Bacteroides than the positive control. Consortium of Clostridium and Bacteroides are reported to enhance system performance. Thus, fungal pretreatment can be used as an economically viable way to improve the throughput of the process.

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来源期刊

Biomass & Bioenergy 工程技术-能源与燃料

CiteScore

11.50

自引率

3.30%

发文量

258

审稿时长

60 days

期刊介绍： Biomass & Bioenergy is an international journal publishing original research papers and short communications, review articles and case studies on biological resources, chemical and biological processes, and biomass products for new renewable sources of energy and materials. The scope of the journal extends to the environmental, management and economic aspects of biomass and bioenergy. Key areas covered by the journal: • Biomass: sources, energy crop production processes, genetic improvements, composition. Please note that research on these biomass subjects must be linked directly to bioenergy generation. • Biological Residues: residues/rests from agricultural production, forestry and plantations (palm, sugar etc), processing industries, and municipal sources (MSW). Papers on the use of biomass residues through innovative processes/technological novelty and/or consideration of feedstock/system sustainability (or unsustainability) are welcomed. However waste treatment processes and pollution control or mitigation which are only tangentially related to bioenergy are not in the scope of the journal, as they are more suited to publications in the environmental arena. Papers that describe conventional waste streams (ie well described in existing literature) that do not empirically address ''new'' added value from the process are not suitable for submission to the journal. • Bioenergy Processes: fermentations, thermochemical conversions, liquid and gaseous fuels, and petrochemical substitutes • Bioenergy Utilization: direct combustion, gasification, electricity production, chemical processes, and by-product remediation • Biomass and the Environment: carbon cycle, the net energy efficiency of bioenergy systems, assessment of sustainability, and biodiversity issues.