Effect of microbial inoculation on physicochemical properties and bacterial community structure of citrus peel composting

Wang, Jiaqin; Liu, Zhiping; Xia, Jia-Shuai; Chen, You‐Peng

doi:10.1016/j.biortech.2019.121843

Cited by 147 publications

(39 citation statements)

References 42 publications

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“…Alpha-and Gammaproteobacteria from the genera Rhizobiales and Pseudomonas, respectively, were also identified as keystone OTUs when maize straw was used as the raw material for co-composting with green soybean hulls (Pseudomonas; [69]) and seaweed (Rhizobiales; [68]). Pseudomonas OTUs were positively associated with GI [69], which is in line with the fact that certain Pseudomonas strains are known to confer plant-disease suppression and have the potential of nitrogen fixation favouring plant growth [76,77]. All in all, it reinforces the potential of co-occurrence networks as useful tools to understand how microbe-microbe interactions change throughout the composting process in response to environmental parameters, and how these changes might influence the quality of the end product by identifying the keystone OTUs that have a large influence in the community.…”

Section: Compostingsupporting

confidence: 60%

Studying Microbial Communities through Co-Occurrence Network Analyses during Processes of Waste Treatment and in Organically Amended Soils: A Review

2021

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Organic wastes have the potential to be used as soil organic amendments after undergoing a process of stabilization such as composting or as a resource of renewable energy by anaerobic digestion (AD). Both composting and AD are well-known, eco-friendly approaches to eliminate and recycle massive amounts of wastes. Likewise, the application of compost amendments and digestate (the by-product resulting from AD) has been proposed as an effective way of improving soil fertility. The study of microbial communities involved in these waste treatment processes, as well as in organically amended soils, is key in promoting waste resource efficiency and deciphering the features that characterize microbial communities under improved soil fertility conditions. To move beyond the classical analyses of metataxonomic data, the application of co-occurrence network approaches has shown to be useful to gain insights into the interactions among the members of a microbial community, to identify its keystone members and modelling the environmental factors that drive microbial network patterns. Here, we provide an overview of essential concepts for the interpretation and construction of co-occurrence networks and review the features of microbial co-occurrence networks during the processes of composting and AD and following the application of the respective end products (compost and digestate) into soil.

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Section: Compostingsupporting

confidence: 60%

Studying Microbial Communities through Co-Occurrence Network Analyses during Processes of Waste Treatment and in Organically Amended Soils: A Review

2021

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“…On day 21, bacteria of the genera Bacillus (44%) and Caldibacillus (16%) still predominated in the compost. Members of the genus Bacillus are among the most common micro-organisms colonizing the composted material, as was shown by both classical microbiological and molecular studies [3,16,19,[79][80][81]. Streptomyces (21%) and members of the family Pseudonocardiaceae (7%) from Actinobacteria phylum also grew actively in the compost on day 21.…”

Section: Prokaryotic Communitymentioning

confidence: 83%

Microbiological Activity during Co-Composting of Food and Agricultural Waste for Soil Amendment

2021

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This study aims to establish the relationship between ambient parameters and the diversity, composition, and function of microbial communities that predominate at each stage of the co-composting of food and agricultural waste. Culture-based and culture-independent methods were used to investigate the changes in the microbiota. The favorable conditions of high initial humidity and C/N ratio caused a decrease in the richness and biodiversity of the microbiota when such conditions existed. During the thermophilic stage, the total microbial number increased, and active mineralization of organic matter was carried out by members of the genera Bacillus, Caldibacillus, Aspergillus, and Penicillium. The fungal community was sensitive to drastic temperature changes. Byssochlamys dominated among fungi during the transition from the mesophilic to the thermophilic stage and during cooling. The biodiversity increased with time and was associated with the dynamics of germination and nitrification indices, so that the more diverse the microbial community, the higher the properties of compost that stimulate plant growth and development. The microbial community of the mature compost, together with mineral plant nutrients ready for consumption and humic compounds, make this compost a good soil additive.

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“…The inoculation of microbes resulted in an early thermophilic phase, positive self-heating test, higher germination index (>80%) and produced a mature compost after 60 days. In another FW composting study, microorganisms when inoculated to waste for recycling and valorization, enriched richness and diversity of the microbial community, decreased C/N ratio, organic matter and cellulose content (Wang et al, 2019).…”

Section: Microbial Additivesmentioning

confidence: 96%

Microbes as vital additives for solid waste composting

Rastogi

Nandal

Khosla

2020

Heliyon

187

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Composting is a natural process that stems through microbial succession, marking the degradation and stabilization of organic matter present in waste. The use of microbial additives during composting is considered highly efficient, likely to enhance the production of different enzymes resulting in better rate of waste degradation. In lesser developed countries, composting has emerged as a vital technology to recycle the biodegradable waste while generating a useful product. Depending on the composition of the waste material, it can either directly undergo composting or homogenized prior to secondary waste treatment methods such as landfilling. However, a relatively expensive downstream handling all along is a main hurdle towards economics of the process. Although basic methodology and recent approaches are known in crucial aspects of the process through various reviews, exploring the behavior of effective microbial additives will be resourceful. In this review, to fill in the gap, studies related to microbial composting of municipal solid and food waste were acknowledged. Here in, factors that could slow down the composting process and affect the compost quality were addressed. Lastly, the review pictured a positive simulation and stated how excellent results, can be achieved by microbial additives during composting.

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Effect of microbial inoculation on physicochemical properties and bacterial community structure of citrus peel composting

Cited by 147 publications

References 42 publications

Studying Microbial Communities through Co-Occurrence Network Analyses during Processes of Waste Treatment and in Organically Amended Soils: A Review

Studying Microbial Communities through Co-Occurrence Network Analyses during Processes of Waste Treatment and in Organically Amended Soils: A Review

Microbiological Activity during Co-Composting of Food and Agricultural Waste for Soil Amendment

Microbes as vital additives for solid waste composting

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