Sekoai Patrick T, Chunilall Viren, Sithole Bruce, Habimana Olivier, Ndlovu Sizwe, Ezeokoli Obinna T, Sharma Pooja, Yoro Kelvin O
Biorefinery Industry Development Facility, Council for Scientific and Industrial Research, Durban 4041, South Africa.
School of Chemical Engineering, University of KwaZulu-Natal, Durban 4041, South Africa.
Microorganisms. 2022 Sep 28;10(10):1924. doi: 10.3390/microorganisms10101924.
Amongst the biofuels described in the literature, biohydrogen has gained heightened attention over the past decade due to its remarkable properties. Biohydrogen is a renewable form of H that can be produced under ambient conditions and at a low cost from biomass residues. Innovative approaches are continuously being applied to overcome the low process yields and pave the way for its scalability. Since the process primarily depends on the biohydrogen-producing bacteria, there is a need to acquire in-depth knowledge about the ecology of the various assemblages participating in the process, establishing effective bioaugmentation methods. This work provides an overview of the biofilm-forming communities during H production by mixed cultures and the synergistic associations established by certain species during H production. The strategies that enhance the growth of biofilms within the H reactors are also discussed. A short section is also included, explaining techniques used for examining and studying these biofilm structures. The work concludes with some suggestions that could lead to breakthroughs in this area of research.
在文献中描述的生物燃料中，生物氢在过去十年中因其卓越的特性而备受关注。生物氢是一种可再生的氢形式，可在环境条件下以低成本从生物质残渣中产生。不断应用创新方法来克服低工艺产率，并为其规模化铺平道路。由于该过程主要依赖于产氢细菌，因此有必要深入了解参与该过程的各种菌群的生态学，建立有效的生物强化方法。这项工作概述了混合培养产氢过程中形成生物膜的群落，以及某些物种在产氢过程中建立的协同关联。还讨论了促进氢反应器内生物膜生长的策略。还包括一小节，解释用于检查和研究这些生物膜结构的技术。工作最后提出了一些可能导致该研究领域取得突破的建议。
