Microbiological insights into anaerobic digestion for biogas, hydrogen or volatile fatty acids (VFAs): a review

Bioengineered

卷:13

Mukesh Kumar Awasthi¹  Jonathan Wong²  Samir Kumar Khanal³  Mohammad J. Taherzadeh⁴  Seyed Ali Nojoumi⁵  Sunita Varjani⁶  Taner Sar⁷  Milad Parchami⁷  Sharareh Harirchi⁷  Steven Wainaina⁷  Mohsen Parchami⁷ 

[1] College of Natural Resources and Environment, Northwest A&

[2] Department of Biology, Institute of Bioresource and Agriculture and, Hong Kong Baptist University, Hong Kong;

[3] Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, Honolulu, Hawaii, USA;

[4] F University, Taicheng Road 3, Yangling, Shaanxi, 712100, China;

[5] Microbiology Research Center, Pasteur Institute of Iran, Tehran, Iran;

[6] Paryavaran Bhavan, Gujarat Pollution Control Board, Gandhinagar, Gujarat, India;

[7] Swedish Centre for Resource Recovery, University of Borås, 50190 Borås, Sweden;

关键词: Anaerobic digestion;    artificial rumen;    interspecies electron transfer;    microbial communities;    syntrophy;    Wood-Ljungdahl pathway;   

DOI  :  10.1080/21655979.2022.2035986

来源: DOAJ

【 摘 要 】

In the past decades, considerable attention has been directed toward anaerobic digestion (AD), which is an effective biological process for converting diverse organic wastes into biogas, volatile fatty acids (VFAs), biohydrogen, etc. The microbial bioprocessing takes part during AD is of substantial significance, and one of the crucial approaches for the deep and adequate understanding and manipulating it toward different products is process microbiology. Due to highly complexity of AD microbiome, it is critically important to study the involved microorganisms in AD. In recent years, in addition to traditional methods, novel molecular techniques and meta-omics approaches have been developed which provide accurate details about microbial communities involved AD. Better understanding of process microbiomes could guide us in identifying and controlling various factors in both improving the AD process and diverting metabolic pathway toward production of selective bio-products. This review covers various platforms of AD process that results in different final products from microbiological point of view. The review also highlights distinctive interactions occurring among microbial communities. Furthermore, assessment of these communities existing in the anaerobic digesters is discussed to provide more insights into their structure, dynamics, and metabolic pathways. Moreover, the important factors affecting microbial communities in each platform of AD are highlighted. Finally, the review provides some recent applications of AD for the production of novel bio-products and deals with challenges and future perspectives of AD.

【 授权许可】

Unknown