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Microbial Degradation in the Biogas Production of Value-Added Compounds

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Recent Advances in Microbial Degradation

Abstract

In recent years, there has been an increase in studies aimed at the valorization and recycling of materials, such as by-products, wastewater, and residues from industries and agriculture to produce value-added products such as biogas and biofertilizers. Anaerobic digestion (AD) is considered the main biological route to obtain value-added compounds. AD technology allows the action of microorganisms in four steps whose syntrophic activity of microbial communities transform substrates into biogas without needing to add chemicals, involving low investment, and operating costs. Moreover, there is a variety of substrates that can be used to generate high-value products from AD. In order to better conduct the AD process, several anaerobic digestion technologies have been proposed over the years varying from conventional systems to high-rate reactors and recently co-digestion and soli-state processes. However, understanding and knowing the role of microbial populations involved in AD have become extremely important to promote a better control of anaerobic systems. In addition, it ensures nutritional and operational conditions to favor the biochemical route for the biomethane generation. Therefore, research opportunities regarding the syntrophic metabolism that occurs throughout each step of the microbial degradation is essential for anaerobic decomposition of many substrates and the stability of biogas production. This type of scientific study can help to improve the sustainability and energy balance from using material that is being discarded in the environment.

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Acknowledgments

We acknowledge the support from the doctoral fellowship from Brenda C. G. Rodrigues, Bruna S. de Mello and Luana C. Grangeiro by CAPES.

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Correspondence to Kelly J. Dussán .

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© 2021 The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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Rodrigues, B.C.G., de Mello, B.S., Grangeiro, L.C., Sarti, A., Dussán, K.J. (2021). Microbial Degradation in the Biogas Production of Value-Added Compounds. In: Inamuddin, .., Ahamed, M.I., Prasad, R. (eds) Recent Advances in Microbial Degradation. Environmental and Microbial Biotechnology. Springer, Singapore. https://doi.org/10.1007/978-981-16-0518-5_3

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